[Event "NED-chT 2425"]
[Site "Netherlands"]
[Date "2024.09.21"]
[Round "1.6"]
[White "Beerdsen, Thomas"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2509"]
[BlackElo "2355"]
[PlyCount "103"]
[EventDate "2024.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Apeldoorn"]
[BlackTeam "Leiden IntelliMagic"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. Kb1 Nxd4 10. Qxd4 Be7 11. f3 b5 12. h4 Qc7 13. g4 0-0 14. Qd2 b4 15. Ne2 Rfc8 16. Nd4 a5 17. Be3 a4 18. Bd3 e5 19. Nf5 Bxf5 20. gxf5 d5 21. Rdg1 Kh8 22. h5 b3 23. cxb3 axb3 24. a3 Qb7 25. Qg2 Rg8 26. h6 g6 27. Qh2 dxe4 28. Bc4 Rgc8 29. Rc1 Rxc4 30. Rxc4 Qd5 31. Rhc1 Qd3+ 32. Ka1 Qxe3 33. Qxe5 Bd8 34. Rd1 Kg8 35. Rcd4 Bb6 36. Rd7 Rc8 37. Kb1 Qg5 38. Rxf7 Kxf7 39. Qe6+ Kf8 40. Qd6+ Kf7 41. Qe6+ Kf8 42. Qxc8+ Ne8 43. fxe4 Qg4 44. Rf1 Qxe4+ 45. Ka1 Qe2 46. Qc1 g5 47. Re1 Qf2 48. Qc3 Bd4 49. Qb4+ Bc5 50. Qe4 Nf6 51. Qa8+ Kf7 52. Qb7+ 1-0

[Event "BEL-chT 2324"]
[Site "Belgium"]
[Date "2024.04.21"]
[Round "11.3"]
[White "Kollen, Zyon"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2343"]
[BlackElo "2378"]
[PlyCount "75"]
[EventDate "2023.09.24"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Crelel"]
[BlackTeam "Namur"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 f5 2. Bg5 h6 3. Bh4 g5 4. Bg3 Bg7 5. e3 c5 6. Be5 Nf6 7. Nc3 cxd4 8. exd4 Nc6 9. Bxf6 Bxf6 10. Bc4 e6 11. d5 Ne5 12. Bb3 a6 13. Nf3 b5 14. 0-0 0-0 15. Nxe5 Bxe5 16. Re1 Bg7 17. dxe6 dxe6 18. Bxe6+ Bxe6 19. Rxe6 Ra7 20. Rd6 Qe8 21. Qd5+ Kh8 22. Re6 Qf7 23. Rae1 b4 24. Na4 Rd7 25. Qc4 a5 26. h3 g4 27. Nc5 Rc8 28. hxg4 Rdc7 29. gxf5 Rxc5 30. Re8+ Rxe8 31. Qxf7 Rxe1+ 32. Kh2 Rc6 33. g4 Rxc2 34. Kg3 Rg1+ 35. Kf3 Rf1 36. Qe8+ Kh7 37. Qg6+ Kh8 38. Qe8+ 1/2-1/2

[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2024.04.20"]
[Round "9.5"]
[White "Jens, Jelmer"]
[Black "Werle, Jan"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2394"]
[BlackElo "2553"]
[PlyCount "82"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Leiden IntelliMagic"]
[BlackTeam "Charlois Europoort"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. 0-0 h6 6. c3 d6 7. b4 Bb6 8. Nbd2 0-0 9. h3 Re8 10. Re1 a6 11. a4 Be6 12. Bxe6 Rxe6 13. Nc4 Ba7 14. Be3 Bxe3 15. Nxe3 Ne7 16. Qc2 Ng6 17. Rad1 Qe8 18. a5 Rd8 19. Qb3 Qd7 20. Kh2 c6 21. Nc4 Qc7 22. g3 d5 23. Nb6 h5 24. Ng5 Red6 25. d4 Nxe4 26. Nxe4 dxe4 27. Rxe4 exd4 28. cxd4 h4 29. Qe3 Rf6 30. Kg2 hxg3 31. fxg3 Rf5 32. Rc1 Qd6 33. Rc5 Qf6 34. Nc4 Rfd5 35. Rxd5 Rxd5 36. Ne5 Qd6 37. Nd3 Rb5 38. Re8+ Kh7 39. Qe4 Rd5 40. Ne5 Qxb4 41. Nxf7 Qd2+ 1/2-1/2

[Event "Oberliga NRW 2324"]
[Site "Germany"]
[Date "2024.04.07"]
[Round "8.3"]
[White "Jens, Jelmer"]
[Black "Jugelt, Tobias"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2358"]
[BlackElo "2351"]
[PlyCount "106"]
[EventDate "2023.09.03"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Bochum SV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qe5+ 4. Be2 Bg4 5. f3 Bd7 6. d4 Qa5 7. f4 Nf6 8. Nf3 g6 9. Ne5 Be6 10. Bd2 c6 11. Ne4 Qd5 12. Ng5 Qxd4 13. Nxe6 fxe6 14. Ba5 Qd5 15. Bc3 Bg7 16. 0-0 Qxd1 17. Raxd1 Nd5 18. Bd4 0-0 19. Bg4 Nc7 20. g3 Nba6 21. c4 Rfd8 22. a3 c5 23. Bc3 Rd6 24. Kf2 Rad8 25. Ke2 Nb8 26. b4 cxb4 27. axb4 Nc6 28. b5 Nd4+ 29. Kf2 h5 30. Bh3 Ndxb5 31. Rxd6 exd6 32. cxb5 dxe5 33. fxe5 Rd5 34. b6 axb6 35. Re1 Kf7 36. Ke3 Bxe5 37. Rf1+ Ke7 38. Bb4+ Bd6 39. Bc3 Rb5 40. Bf6+ Kd7 41. Bg7 h4 42. Rd1 hxg3 43. hxg3 Rb3+ 44. Ke4 Ke7 45. Bf1 Ne8 46. Bh8 Bxg3 47. Bd3 Nd6+ 48. Kf3 Nf7 49. Bd4 Be5 50. Be3 Bd6 51. Ke2 Rb2+ 52. Kf1 Bc5 53. Bd2 g5 0-1

[Event "BEL-chT 2324"]
[Site "Belgium"]
[Date "2024.03.24"]
[Round "10.3"]
[White "Jens, Jelmer"]
[Black "Goossens, Roel"]
[Result "1/2-1/2"]
[ECO "C24"]
[WhiteElo "2378"]
[BlackElo "2322"]
[PlyCount "39"]
[EventDate "2023.09.24"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Namur"]
[BlackTeam "Leuven Centraal"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 Be7 5. 0-0 d6 6. Nbd2 0-0 7. Re1 b5 8. Bb3 Nbd7 9. c3 a5 10. d4 a4 11. Bc2 Re8 12. Nf1 Bf8 13. Ng3 Qc7 14. h3 c5 15. d5 c4 16. Nh2 Nc5 17. Qf3 Qd8 18. Nf5 Bxf5 19. Qxf5 Be7 20. g3 1/2-1/2

[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2024.03.23"]
[Round "8.7"]
[White "Hausrath, Daniel"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2459"]
[BlackElo "2394"]
[PlyCount "53"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Zuid Limburg"]
[BlackTeam "Leiden IntelliMagic"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 f5 2. d3 d6 3. e4 e5 4. Nc3 Nc6 5. exf5 Nge7 6. f6 gxf6 7. d4 d5 8. dxe5 fxe5 9. Ng5 Bf5 10. g4 Bg6 11. Ne6 Qd6 12. Nb5 Qb4+ 13. Bd2 Qe4+ 14. Qe2 Qxh1 15. 0-0-0 a6 16. Nbxc7+ Kd7 17. f4 Be4 18. Qf2 Rb8 19. fxe5 Qf3 20. Qb6 Nc8 21. Nxf8+ Rxf8 22. e6+ Kd6 23. Bb4+ Ke5 24. Qc5 N8e7 25. Bc3+ Kf4 26. Bd2+ Kxg4 27. Qg1+ 1-0

[Event "Oberliga NRW 2324"]
[Site "Germany"]
[Date "2024.03.10"]
[Round "7.4"]
[White "Wessendorf, Thomas"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2270"]
[BlackElo "2365"]
[PlyCount "66"]
[EventDate "2023.09.03"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Essen Katernberg"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. Qe2 Nc6 5. c3 Bg4 6. h3 Bxf3 7. Qxf3 g6 8. d3 Bg7 9. Nd2 0-0 10. Bb3 b5 11. 0-0 a5 12. a3 Qc7 13. Qe3 Nd7 14. Nf3 Qb6 15. Bd2 e6 16. Kh1 Rab8 17. Rab1 Rfc8 18. Ng5 Re8 19. f4 c4 20. dxc4 Nc5 21. Bc2 bxc4 22. Qg3 f6 23. Nf3 f5 24. Be3 Qb5 25. a4 Nxa4 26. Nd4 Nxd4 27. Bxd4 e5 28. fxe5 dxe5 29. exf5 exd4 30. f6 Rb7 31. fxg7 d3 32. Rf8+ Kxg7 33. Rxe8 dxc2 0-1

[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2024.03.02"]
[Round "7.9"]
[White "Jens, Jelmer"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2394"]
[BlackElo "2258"]
[PlyCount "104"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Leiden IntelliMagic"]
[BlackTeam "Groningen Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 Nd7 8. Be3 e5 9. Qd2 h6 10. 0-0 b6 11. Nh2 Nf8 12. f4 exf4 13. Bxf4 Ne6 14. Bg3 Qg5 15. Qe1 Nd4 16. Rc1 0-0 17. e5 f5 18. exf6 Rxf6 19. Rxf6 Qxf6 20. Qe8+ Kh7 21. Re1 Qf8 22. Re7 Be6 23. Qxf8 Rxf8 24. Rxa7 Nxc2 25. Nf3 Rf7 26. Ra6 Rb7 27. a3 Bd5 28. Ne5 Nd4 29. Nc4 Bxc4 30. dxc4 Nf5 31. Be1 Bd4+ 32. Kh2 Re7 33. Bg3 Ne3 34. Bd6 Nf1+ 35. Kh1 Re1 36. Ra7+ Kg8 37. Ra8+ Kf7 38. g4 Ne3+ 39. Kh2 Nxc4 40. Ra7+ Kf6 41. Bc7 Rc1 42. Ne4+ Ke6 43. b3 Rc2+ 44. Kg3 Kd5 45. Kf3 Nd2+ 46. Nxd2 Rxd2 47. Bxb6 Rd3+ 48. Kg2 Rxb3 49. Bd8 c4 50. Rd7+ Ke4 51. a4 c3 52. Re7+ Kd3 0-1

[Event "Oberliga NRW 2324"]
[Site "Germany"]
[Date "2024.02.18"]
[Round "6.3"]
[White "Sabirov, Ramil"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "A88"]
[WhiteElo "2095"]
[BlackElo "2375"]
[PlyCount "69"]
[EventDate "2023.09.03"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Koeln Porz II"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 g6 4. b3 Bg7 5. Bb2 d6 6. d4 0-0 7. 0-0 c6 8. c4 Na6 9. Nc3 Qc7 10. d5 e5 11. dxe6 Bxe6 12. Nd4 Bf7 13. e3 Nc5 14. Qc2 a5 15. Rad1 Qb6 16. Rb1 Rfe8 17. Rfd1 Rad8 18. Ba1 Ng4 19. a3 Ne5 20. Nf3 Qc7 21. Ng5 a4 22. Nxa4 Nxa4 23. Bxe5 dxe5 24. bxa4 e4 25. Nxf7 Qxf7 26. c5 h5 27. Bf1 Kh7 28. Rb6 Rd5 29. Qb3 Re7 30. Rxd5 cxd5 31. Rd6 Rc7 32. Qxd5 Qxd5 33. Rxd5 Bf8 34. Bb5 Bxc5 35. Rd7+ 1/2-1/2

[Event "BEL-chT 2324"]
[Site "Belgium"]
[Date "2024.02.04"]
[Round "7.3"]
[White "Zelbel, Patrick"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2466"]
[BlackElo "2378"]
[PlyCount "55"]
[EventDate "2023.09.24"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Tal"]
[BlackTeam "Namur"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. Nf3 Nf6 5. d4 e6 6. Na3 Qd8 7. Nc4 Nc6 8. Nce5 Nxe5 9. Nxe5 a6 10. Be3 Qc7 11. Qa4+ Nd7 12. Bb5 cxd4 13. Bxd7+ Bxd7 14. Qxd4 Bb5 15. a4 Rd8 16. Qf4 Bd6 17. Qxf7+ Qxf7 18. Nxf7 Kxf7 19. axb5 axb5 20. Ke2 Ra8 21. Rad1 Ra6 22. Rd3 Rc8 23. Rhd1 Rcc6 24. f4 Kg6 25. g4 h5 26. gxh5+ Kxh5 27. Rg1 b4 28. Bd4 1-0

[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2024.02.03"]
[Round "6.8"]
[White "Reinderman, Dimitri"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "2578"]
[BlackElo "2394"]
[PlyCount "53"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "De Waagtoren"]
[BlackTeam "Leiden IntelliMagic"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. c4 f5 2. Nc3 Nf6 3. d4 d6 4. Nf3 g6 5. b4 Bg7 6. Bb2 0-0 7. e3 e6 8. Be2 Qe7 9. 0-0 Nc6 10. Qb3 Nd8 11. Rac1 Nf7 12. Rfe1 Bd7 13. Bd3 e5 14. e4 f4 15. dxe5 dxe5 16. Nd5 Nxd5 17. exd5 g5 18. c5 Rae8 19. Nd2 g4 20. Ne4 Kh8 21. b5 Qh4 22. Ba3 Rg8 23. d6 Nd8 24. dxc7 Ne6 25. Nd6 Rgf8 26. Nxe8 Rxe8 27. Qd5 1-0

[Event "Oberliga NRW 2324"]
[Site "Germany"]
[Date "2024.01.28"]
[Round "5.4"]
[White "Proettel, Swen"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2137"]
[BlackElo "2378"]
[PlyCount "41"]
[EventDate "2023.09.03"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Muelheim Nord II"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. Bd3 d6 7. Nxd4 cxd4 8. Ne2 Nf6 9. Nxd4 Nxe4 10. Bxe4 Bxd4 11. c3 Bg7 12. Qf3 Rb8 13. 0-0 b5 14. d4 b4 15. f5 0-0 16. Bg5 bxc3 17. bxc3 Rb2 18. Rae1 Ba6 19. Bd3 Bb7 20. Be4 Ba6 21. Bd3 1/2-1/2

[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2023.12.16"]
[Round "5.9"]
[White "Dugarov, Alexei"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "2190"]
[BlackElo "2394"]
[PlyCount "71"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Den Bosch HMC"]
[BlackTeam "Leiden IntelliMagic"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. g3 d5 3. exd5 Qxd5 4. Nf3 Bg4 5. Be2 Nc6 6. Nc3 Qd7 7. Ne4 e6 8. d3 Be7 9. Be3 b6 10. c3 f5 11. Ned2 Bf6 12. h3 Bh5 13. Rg1 Bg6 14. g4 fxg4 15. hxg4 Bxd3 16. Bxd3 Qxd3 17. Qa4 Qd7 18. 0-0-0 0-0-0 19. Nc4 Qc7 20. g5 Be7 21. Nce5 Nxe5 22. Nxe5 Bd6 23. Nc6 Rd7 24. Qa6+ Qb7 25. Nxa7+ Kb8 26. Qxb7+ Kxb7 27. Nb5 Kc6 28. Nxd6 Rxd6 29. Bf4 Rxd1+ 30. Rxd1 Ne7 31. Rd6+ Kb5 32. Rxe6 Nd5 33. Be5 Rf8 34. b3 Nf4 35. Bc7 Nxe6 36. Be5 0-1

[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2023.11.25"]
[Round "4.9"]
[White "Jens, Jelmer"]
[Black "Los, Sander"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2394"]
[BlackElo "2287"]
[PlyCount "70"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Leiden IntelliMagic"]
[BlackTeam "Amstelveen Zukertort"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. 0-0 Bg7 6. Bb5+ Nc6 7. d4 0-0 8. Re1 cxd4 9. cxd4 Bg4 10. Nc3 Bxf3 11. gxf3 Nh5 12. Be3 e5 13. d5 Nd4 14. Bf1 f5 15. Nb5 fxe4 16. Bxd4 exd4 17. Rxe4 Rf4 18. Nxd4 Qg5+ 19. Kh1 Qh4 20. Ne6 Rxe4 21. fxe4 Be5 22. f4 Nxf4 23. Qc2 Nxe6 24. dxe6 Rf8 25. e7 Qxe7 26. Bc4+ Kg7 27. Rf1 Rxf1+ 28. Bxf1 Qf6 29. Bc4 Bxb2 30. Kg2 Bd4 31. Bd5 Qg5+ 32. Kf3 Qe3+ 33. Kg2 h5 34. Bxb7 Qg1+ 35. Kh3 Qg4# 0-1

[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2023.11.04"]
[Round "3.5"]
[White "Lammens, Tim"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "A85"]
[WhiteElo "2234"]
[BlackElo "2394"]
[PlyCount "81"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Apeldoorn"]
[BlackTeam "Leiden IntelliMagic"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. c4 f5 2. Nf3 Nf6 3. Nc3 g6 4. d4 Bg7 5. b4 0-0 6. Bb2 c6 7. e3 d5 8. Qb3 Kh8 9. cxd5 cxd5 10. Bd3 Be6 11. Ne2 Bg8 12. Nf4 Ne4 13. h4 Bf6 14. Ne5 Nd7 15. f3 Nd6 16. Qd1 Nc4 17. Bxc4 dxc4 18. Qc2 Rc8 19. Bc3 Qc7 20. Qb2 Nb6 21. a4 Nd5 22. Nxd5 Bxd5 23. Qc2 Kg8 24. 0-0-0 Rcd8 25. h5 Bxe5 26. dxe5 Be6 27. Qf2 g5 28. h6 Rxd1+ 29. Rxd1 Rd8 30. Rxd8+ Qxd8 31. Qg3 g4 32. Bd4 Qe8 33. Qh4 gxf3 34. gxf3 Qg6 35. Qxe7 Qg1+ 36. Kc2 Qf2+ 37. Kc1 Qe1+ 38. Kc2 Qe2+ 39. Kc1 Qe1+ 40. Kc2 Qe2+ 41. Kc1 1/2-1/2

[Event "Oberliga NRW 2324"]
[Site "Germany"]
[Date "2023.10.29"]
[Round "3.3"]
[White "Jens, Jelmer"]
[Black "Fluechter, Gregor"]
[Result "0-1"]
[ECO "C24"]
[WhiteElo "2383"]
[BlackElo "2280"]
[PlyCount "68"]
[EventDate "2023.09.03"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Brackel"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 d6 5. c3 0-0 6. 0-0 h6 7. Nbd2 c6 8. d4 exd4 9. cxd4 Bb6 10. e5 dxe5 11. dxe5 Nd5 12. Ne4 Be6 13. b3 Qe7 14. Bb2 Rd8 15. Nd6 Bc5 16. Nd4 Bxd6 17. exd6 Qxd6 18. Nxe6 Qxe6 19. Re1 Qg6 20. Re3 f6 21. Re7 Na6 22. Rxb7 Nc5 23. Rc7 Kh8 24. Rxc6 Ne3 25. Qf3 Nxc4 26. bxc4 Ne4 27. Rd1 Ng5 28. Qb3 Nh3+ 29. Kf1 Rxd1+ 30. Qxd1 Nf4 31. Rd6 Qxg2+ 32. Ke1 Re8+ 33. Kd2 Qxf2+ 34. Kc3 Re3+ 0-1

[Event "BEL-chT 2324"]
[Site "Belgium"]
[Date "2023.10.22"]
[Round "3.3"]
[White "Matnadze, Ana"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A88"]
[WhiteElo "2401"]
[BlackElo "2394"]
[PlyCount "69"]
[EventDate "2023.09.24"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Wachtebeke"]
[BlackTeam "Namur"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. d5 c6 7. c4 d6 8. Nd4 Bd7 9. Nc3 Qb6 10. Nc2 Na6 11. Be3 Qc7 12. Qd2 e5 13. dxe6 Bxe6 14. b3 Nc5 15. Rad1 Rad8 16. Bf4 Qb6 17. Be3 Qc7 18. Nd4 Bf7 19. Qc2 Rfe8 20. Bg5 h6 21. Bf4 Qb6 22. Bc1 d5 23. cxd5 Nxd5 24. Nxd5 Bxd5 25. Be3 Bxg2 26. Kxg2 Rd5 27. Nf3 Rxe3 28. fxe3 Ne4 29. Rxd5 cxd5 30. Qd3 Qa5 31. a4 Kh7 32. Rc1 g5 33. b4 Qxb4 34. Qxd5 Kg6 35. Qe6+ 1-0

[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2023.10.07"]
[Round "2.10"]
[White "Rebers, Eugene H"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "2192"]
[BlackElo "2394"]
[PlyCount "88"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Paul Keres"]
[BlackTeam "Leiden IntelliMagic"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. c4 f5 2. g3 Nf6 3. Bg2 g6 4. b4 e5 5. Bb2 d6 6. d3 Bg7 7. Nf3 0-0 8. 0-0 h6 9. Nc3 c6 10. c5 e4 11. dxe4 fxe4 12. Nh4 Qe8 13. f4 d5 14. Qd2 Na6 15. a3 Kh7 16. f5 g5 17. Ng6 Rg8 18. Nd1 Bxf5 19. Ne5 Bc8 20. Nc4 Qe7 21. Nd6 Rf8 22. Ne3 Bh8 23. h4 Kg6 24. hxg5 hxg5 25. Nef5 Qh7 26. Bxf6 Bxf6 27. Ne3 Be6 28. Nxe4 Bxa1 29. Rxa1 Qg7 30. Rd1 Qe5 31. Nd6 Rf6 32. Qd3+ Kg7 33. g4 Rh8 34. Nef5+ Bxf5 35. Nxf5+ Kf8 36. e4 Qh2+ 37. Kf2 Nc7 38. Qd4 Qf4+ 39. Kg1 Kf7 40. exd5 Qh2+ 41. Kf1 Nxd5 42. Re1 Kg6 43. Bxd5 cxd5 44. Qxd5 Qf4+ 0-1

[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2023.09.16"]
[Round "1.6"]
[White "Jens, Jelmer"]
[Black "Pham, Khoi"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2394"]
[BlackElo "2344"]
[PlyCount "41"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 216 Extra"]
[Source "ChessBase"]
[SourceDate "2023.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.30"]
[SourceQuality "1"]
[WhiteTeam "Leiden IntelliMagic"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. 0-0 a6 6. a4 d6 7. c3 Ba7 8. Re1 0-0 9. h3 h6 10. Nbd2 Re8 11. Nf1 Be6 12. Bxe6 Rxe6 13. b4 d5 14. Qc2 Qd6 15. Rb1 Rd8 16. b5 Ne7 17. Be3 Bxe3 18. Nxe3 Ng6 19. exd5 Nxd5 20. Nc4 Qe7 21. d4 1/2-1/2

[Event "Oberliga NRW 2324"]
[Site "Germany"]
[Date "2023.09.03"]
[Round "1.3"]
[White "Jens, Jelmer"]
[Black "Straeter, Timo"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2394"]
[BlackElo "2310"]
[PlyCount "47"]
[EventDate "2023.09.03"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Wattenscheid"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Bc4 Nc6 3. Nf3 Be7 4. d4 d6 5. h3 Nf6 6. Nc3 0-0 7. 0-0 h6 8. Re1 Bd7 9. Be3 a6 10. a4 exd4 11. Nxd4 Nb4 12. Qd2 c5 13. Nde2 b5 14. axb5 axb5 15. Bxb5 Bxb5 16. Nxb5 Nxe4 17. Rxa8 Qxa8 18. Qd1 Qb7 19. Na3 Nd5 20. Nf4 Nxe3 21. Rxe3 Bg5 22. Qf3 Bxf4 23. Qxf4 d5 24. Qe5 1/2-1/2

[Event "Oberliga NRW 2223"]
[Site "Germany"]
[Date "2023.05.14"]
[Round "9.4"]
[White "Jens, Jelmer"]
[Black "Wolter, Kai"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2420"]
[BlackElo "2205"]
[PlyCount "55"]
[EventDate "2022.09.11"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Muenster"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qf3 Nf6 8. 0-0-0 h5 9. Nxc6 dxc6 10. Qg3 Qxg3 11. hxg3 e5 12. f3 Be6 13. g4 g6 14. Na4 Nd7 15. gxh5 gxh5 16. c4 Bh6 17. Bxh6 Rxh6 18. c5 Rd8 19. b3 Nf8 20. Rxd8+ Kxd8 21. Kd2 h4 22. Ke3 Rh7 23. Nb2 Ke7 24. Nd3 Kf6 25. Be2 Rg7 26. Rxh4 Rxg2 27. Rh8 Kg7 28. Rh1 1/2-1/2

[Event "Oberliga NRW 2223"]
[Site "Germany"]
[Date "2023.04.16"]
[Round "7.3"]
[White "Straeter, Timo"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "2310"]
[BlackElo "2420"]
[PlyCount "39"]
[EventDate "2022.09.11"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Wattenscheid"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 f5 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bg7 5. e3 d6 6. Be2 0-0 7. 0-0 Qe8 8. b3 e5 9. dxe5 dxe5 10. Bb2 Nc6 11. Nd5 Rf7 12. b4 e4 13. Ng5 Nxd5 14. cxd5 Bxb2 15. dxc6 Bxa1 16. Bc4 Qe7 17. cxb7 Bxb7 18. Nxf7 Qxb4 19. Ne5+ Kf8 20. Qxa1 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.04.01"]
[Round "8.8"]
[White "Jens, Jelmer"]
[Black "Pham, Khoi"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "2400"]
[BlackElo "2368"]
[PlyCount "75"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qb6 8. Bb3 e6 9. Qd2 Be7 10. 0-0-0 Nc5 11. Rhe1 h6 12. Bh4 0-0 13. g3 Qc7 14. f4 Re8 15. e5 dxe5 16. fxe5 Nfd7 17. Bxe7 Rxe7 18. Qe3 b5 19. a3 Rb8 20. g4 Nf8 21. g5 Nxb3+ 22. cxb3 hxg5 23. Qxg5 b4 24. axb4 Nh7 25. Qh5 f5 26. Re3 Bd7 27. Rh3 g5 28. Qg6+ Rg7 29. Nxe6 Rxg6 30. Nxc7 Nf8 31. N3d5 Kf7 32. Nf6 Be6 33. Rd6 Rc8 34. Rc3 Bxb3 35. Rxa6 Nd7 36. Ra7 Nxf6 37. exf6 Kxf6 38. Rxb3 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.03.11"]
[Round "7.6"]
[White "Kerigan, Demre"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2360"]
[BlackElo "2400"]
[PlyCount "49"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Paul Keres"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 a6 5. Bd3 g6 6. Nxd4 cxd4 7. Ne2 Bg7 8. 0-0 d5 9. exd5 Qxd5 10. c3 dxc3 11. dxc3 Nf6 12. Nf4 Qd6 13. Bc4 Qc7 14. Qb3 0-0 15. a4 Bd7 16. Re1 Rac8 17. Bf1 Bc6 18. Nd3 Bd5 19. Qb4 e6 20. Qh4 Rfe8 21. Bf4 Qa5 22. Be5 Rc4 23. Nf4 Rxa4 24. Rxa4 Qxa4 25. Bxf6 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.02.11"]
[Round "6.10"]
[White "Jens, Jelmer"]
[Black "Kollen, Zyon"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2400"]
[BlackElo "2343"]
[PlyCount "77"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Charlois Europoort"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. Qe2 Nf6 8. Nb3 Nc6 9. Bg5 Qb4+ 10. Bd2 Qb6 11. 0-0-0 Be7 12. Bg5 h6 13. Bh4 Bd7 14. Nbxd4 0-0 15. Nxc6 Bxc6 16. Ne5 Qc7 17. Kb1 Rad8 18. Bg3 Rxd1+ 19. Rxd1 Rd8 20. Nxf7 Rxd1+ 21. Qxd1 Qc8 22. Nd6 Qd7 23. Qe2 Nd5 24. Ne4 b5 25. Bb3 a5 26. a3 a4 27. Ba2 Bf6 28. Nc5 Qe7 29. Qxe6+ Qxe6 30. Nxe6 Kh7 31. Kc1 b4 32. Nf8+ Kh8 33. Bxd5 bxa3 34. Ba2 axb2+ 35. Kb1 Bxg2 36. Ng6+ Kh7 37. Nf8+ Kh8 38. Be5 Bh4 39. Ng6+ 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.12.17"]
[Round "5.8"]
[White "Van Amerongen, Marleen"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "B56"]
[WhiteElo "2140"]
[BlackElo "2400"]
[PlyCount "72"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. f4 e5 7. Nf3 Be7 8. Bd3 Qb6 9. a4 0-0 10. Qe2 exf4 11. a5 Nxa5 12. Na4 Qc7 13. Bxf4 Nc6 14. 0-0 Bg4 15. Qe1 Bh5 16. Nc3 Bg6 17. Nb5 Qd8 18. Nfd4 a6 19. Nxc6 bxc6 20. Nd4 Qb6 21. Be3 Qb7 22. Nf5 Rfe8 23. Qg3 c5 24. Bg5 Bxf5 25. Bxf6 Bxf6 26. Rxf5 Bxb2 27. Raf1 Be5 28. Qg4 Re7 29. Bc4 Rf8 30. h4 g6 31. R5f3 Bd4+ 32. Kh1 Qxe4 33. Rxf7 Rfxf7 34. Bxf7+ Kg7 35. Qxe4 Rxe4 36. Bc4 Rxh4# 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.26"]
[Round "4.9"]
[White "Jens, Jelmer"]
[Black "Miesen, Fabian"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2400"]
[BlackElo "2193"]
[PlyCount "63"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Zuid Limburg"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 Nd7 8. Be3 e5 9. Qd2 h6 10. Nh2 Qe7 11. 0-0 Nf8 12. f4 exf4 13. Rxf4 Be6 14. a3 g5 15. Rf2 Ng6 16. Rb1 b6 17. b4 cxb4 18. axb4 0-0 19. b5 c5 20. Nf1 Qd6 21. Ne2 Nh4 22. Nfg3 f5 23. exf5 Nxf5 24. Nxf5 Rxf5 25. Rxf5 Bxf5 26. Rf1 Bd7 27. c4 Re8 28. Bf2 Bf5 29. d4 cxd4 30. Nxd4 Rd8 31. Rd1 Bg6 32. Nf3 1/2-1/2

[Event "Oberliga NRW 2223"]
[Site "Germany"]
[Date "2022.11.06"]
[Round "4.2"]
[White "Tkachuk, Konstantyn"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2255"]
[BlackElo "2420"]
[PlyCount "56"]
[EventDate "2022.09.11"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Bochum SG"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e6 6. Nge2 Nge7 7. d3 d6 8. 0-0 0-0 9. Rb1 b6 10. a3 Bb7 11. b4 Qd7 12. f4 Rac8 13. Be3 Nd4 14. Bf2 f5 15. Rc1 Kh8 16. Nxd4 cxd4 17. Ne2 e5 18. Qb3 Ng8 19. exf5 Bxg2 20. Kxg2 Rxf5 21. Rce1 Rh5 22. Ng1 Qb7+ 23. Nf3 Rf8 24. Qd1 exf4 25. g4 Re5 26. Bxd4 Rxe1 27. Bxg7+ Kxg7 28. Rxe1 Nf6 1/2-1/2

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.05"]
[Round "3.7"]
[White "Provoost, Simon"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2199"]
[BlackElo "2400"]
[PlyCount "34"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Sas van Gent"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 f5 2. Nf3 Nf6 3. Bf4 g6 4. e3 Bg7 5. Be2 d6 6. h3 Nc6 7. 0-0 0-0 8. c4 Ne4 9. Bh2 e5 10. Nc3 Nxc3 11. bxc3 Kh8 12. Rb1 Qe8 13. c5 dxc5 14. Nxe5 Nxe5 15. dxe5 Bxe5 16. Qd5 Bxh2+ 17. Kxh2 Qe7 1/2-1/2

[Event "Oberliga NRW 2223"]
[Site "Germany"]
[Date "2022.10.16"]
[Round "3.2"]
[White "Zolfagharian, Kevin"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "B68"]
[WhiteElo "2249"]
[BlackElo "2420"]
[PlyCount "105"]
[EventDate "2022.09.11"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Solingen III"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 Be7 10. Nf3 b5 11. e5 b4 12. exf6 bxc3 13. Qxc3 gxf6 14. Kb1 d5 15. Bh4 Rb8 16. f5 Rg8 17. g3 Rg4 18. fxe6 fxe6 19. h3 Rgb4 20. b3 a5 21. Qd3 Re4 22. Qd2 Nb4 23. Bd3 Nxd3 24. cxd3 Reb4 25. Qh6 e5 26. Qh5+ Kf8 27. Ng5 fxg5 28. Rhf1+ Kg8 29. Rf7 Bf5 30. Rxf5 Qc8 31. Rf2 Qe8 32. Qf3 Rd8 33. Qf5 gxh4 34. Qe6+ Kh8 35. Qxe5+ Kg8 36. Qe6+ Kh8 37. Rf7 Rb6 38. Qf5 Rg6 39. Re1 hxg3 40. Rexe7 Qxe7 41. Rxe7 g2 42. Re1 g1Q 43. Rxg1 Rxg1+ 44. Kb2 Rg7 45. Qf6 Re8 46. Qd4 Rd8 47. a4 Kg8 48. Qc5 Rgd7 49. Qxa5 d4 50. b4 Rc8 51. Qe5 Kf7 52. b5 Rc3 53. a5 1-0

[Event "EU-Cup 37th"]
[Site "Mayrhofen"]
[Date "2022.10.09"]
[Round "7.2"]
[White "Jens, Jelmer"]
[Black "Erenberg, Ariel"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2410"]
[BlackElo "2516"]
[PlyCount "106"]
[EventDate "2022.10.03"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "AUT"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Kfar Saba"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ISR"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Nd7 7. Bc4 Nf6 8. Ne5 e6 9. Qe2 b5 10. Bb3 Qc7 11. 0-0 Bd6 12. d4 0-0 13. Bf4 c5 14. dxc5 Qxc5 15. Rad1 Bb7 16. Nd7 Nxd7 17. Bxd6 Qc6 18. f3 Rfd8 19. Qf2 a5 20. c3 Nf8 21. Qg3 b4 22. h4 bxc3 23. Be5 Ng6 24. Bxc3 a4 25. Bc2 a3 26. Bb3 axb2 27. Bxb2 Qc5+ 28. Kh2 Qh5 29. Kh3 Bd5 30. Qg5 Qxg5 31. hxg5 Rdb8 32. Bxd5 Nf4+ 33. Kg3 Nxd5 34. Be5 Rb4 35. Rf2 f6 36. gxf6 gxf6 37. Bd6 Rba4 38. a3 Kf7 39. Rd3 R8a6 40. Bc5 Rc6 41. Bd4 Rcc4 42. Bb2 h5 43. Rfd2 h4+ 44. Kf2 Kg6 45. Rb3 Nf4 46. Rb8 Kf5 47. Rb5+ e5 48. Rb6 Ra7 49. g3 hxg3+ 50. Kxg3 Rh7 51. Kf2 Rh1 52. Rb4 Rh2+ 53. Ke3 Rc2 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.10.08"]
[Round "2.9"]
[White "Jens, Jelmer"]
[Black "Kramer, Julian"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2400"]
[BlackElo "2461"]
[PlyCount "120"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Groningen Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Bd7 5. Qc2 Qc7 6. 0-0 e5 7. d3 Be7 8. Bg5 h6 9. Bh4 g5 10. Bg3 h5 11. h4 g4 12. Nfd2 Rg8 13. Na3 b5 14. d4 a6 15. Qd1 Nc6 16. Nc2 cxd4 17. cxd4 Qb6 18. dxe5 dxe5 19. a4 Rd8 20. axb5 axb5 21. Bd3 Kf8 22. Qe2 Rb8 23. b4 Bd6 24. Nb3 Ke7 25. Qd2 Rgc8 26. Rfd1 Be6 27. Bxb5 Nxe4 28. Qd3 Qxb5 29. Qxe4 Bxb3 30. Nd4 Nxd4 31. Rxd4 Qb7 32. Qe3 Ra8 33. Rxa8 Rxa8 34. Rxd6 Kxd6 35. Bxe5+ Kd7 36. Qxb3 Ke7 37. Qe3 Qd5 38. Bd4+ Kd7 39. Bc5 Re8 40. Qf4 Re1+ 41. Kh2 Qe5 42. Kg3 Ke6 43. Bd4 Qxf4+ 44. Kxf4 Rb1 45. Bc5 f6 46. f3 gxf3 47. gxf3 Rc1 48. Kg3 Ke5 49. Bf8 Rc2 50. Be7 Ra2 51. Bd8 Rb2 52. Be7 f5 53. Bc5 f4+ 54. Kh3 Kd5 55. Ba7 Rxb4 56. Kg2 Rb7 57. Bf2 Rb2 58. Kh3 Kc4 59. Bd4 Rh2+ 60. Kxh2 Kxd4 0-1

[Event "EU-Cup 37th"]
[Site "Mayrhofen"]
[Date "2022.10.07"]
[Round "5.2"]
[White "Huschenbeth, Niclas"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "B66"]
[WhiteElo "2593"]
[BlackElo "2410"]
[PlyCount "75"]
[EventDate "2022.10.03"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "AUT"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]
[WhiteTeam "Bayern Muenchen"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. Nxc6 bxc6 9. 0-0-0 Be7 10. Bxf6 gxf6 11. Bc4 Bb7 12. Bb3 Qc7 13. Rhe1 0-0-0 14. Qe2 Rd7 15. Qg4 Qa5 16. f4 Rf8 17. f5 e5 18. Qf3 Bd8 19. Re3 Bb6 20. Red3 Rfd8 21. Kb1 Bd4 22. Ne2 Ba7 23. Qh5 d5 24. Qxh7 Qb4 25. Ng3 a5 26. a3 Qe7 27. Qg7 Kb8 28. h4 Ba6 29. Rc3 Rd6 30. h5 Bd4 31. Rf3 R6d7 32. h6 dxe4 33. Nxe4 Be2 34. Rdd3 Bxf3 35. Rxf3 Rb7 36. h7 Qf8 37. Qxf8 Rxf8 38. Rg3 1-0

[Event "EU-Cup 37th"]
[Site "Mayrhofen"]
[Date "2022.10.04"]
[Round "2.2"]
[White "Vidit, Santosh Gujrathi"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2710"]
[BlackElo "2410"]
[PlyCount "139"]
[EventDate "2022.10.03"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "AUT"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]
[WhiteTeam "Novy Bor"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "NED"]

1. d4 f5 2. Bg5 g6 3. Nc3 Bg7 4. Nf3 Nf6 5. e3 d6 6. Bc4 Nc6 7. 0-0 Na5 8. Bd3 0-0 9. Qe2 h6 10. Bxf6 Bxf6 11. e4 e6 12. Rad1 Bg7 13. Rfe1 Bd7 14. exf5 gxf5 15. Qd2 Nc6 16. Bc4 d5 17. Bb5 Ne7 18. Bxd7 Qxd7 19. Ne2 Ng6 20. h4 Rfe8 21. h5 Nf8 22. Nf4 Nh7 23. Ne5 Bxe5 24. Rxe5 Ng5 25. Rde1 c6 26. Qe3 Kf7 27. Qd3 Ne4 28. f3 Ng5 29. c4 dxc4 30. Qxc4 Kf6 31. Qc3 Kf7 32. Qc4 Kf6 33. Ng6 Rad8 34. Rd1 Nf7 35. Qc3 Kg7 36. Re2 Kh7 37. b4 Qd6 38. a3 Qg3 39. Qe1 Qd6 40. f4 Qd7 41. Rd3 Nd6 42. a4 Nc4 43. Qh4 Qf7 44. b5 cxb5 45. axb5 Nd6 46. Rb2 Qg7 47. Kh2 Ne4 48. Rc2 Nf6 49. Ne5 Rg8 50. Rdc3 Nd5 51. Rg3 Qxg3+ 52. Qxg3 Rxg3 53. Kxg3 Ra8 54. Nd7 a5 55. bxa6 Rxa6 56. Rb2 Ra3+ 57. Kf2 Nxf4 58. Rxb7 Kg8 59. Nf6+ Kf8 60. Rh7 Ra2+ 61. Kf3 Nxg2 62. Nd7+ Ke8 63. Nc5 Ne1+ 64. Kf4 Re2 65. Rxh6 Kf7 66. Rh7+ Kg8 67. Rd7 Rc2 68. Nxe6 Rh2 69. Kxf5 Rxh5+ 70. Kg6 1-0

[Event "Oberliga NRW 2223"]
[Site "Germany"]
[Date "2022.09.25"]
[Round "2.4"]
[White "Jens, Jelmer"]
[Black "Bentel, Robin"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2420"]
[BlackElo "2242"]
[PlyCount "49"]
[EventDate "2022.09.11"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Lieme"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. 0-0 Bg7 6. Bb5+ Nc6 7. d4 0-0 8. Re1 Qc7 9. h3 a6 10. Bf1 cxd4 11. cxd4 d5 12. e5 Ne4 13. Nc3 Nxc3 14. bxc3 Na5 15. Bg5 Re8 16. Rc1 Bd7 17. Nh2 Nc4 18. Qf3 Qc6 19. Ng4 Bxg4 20. hxg4 b5 21. Bd3 f6 22. Bf4 fxe5 23. dxe5 Rf8 24. Qg3 e6 25. Bg5 1/2-1/2

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.09.17"]
[Round "1.1"]
[White "O'Donnell, Conor"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A88"]
[WhiteElo "2295"]
[BlackElo "2400"]
[PlyCount "77"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Amstelveen Zukertort"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 0-0 6. c4 d6 7. Nc3 c6 8. b4 e5 9. dxe5 dxe5 10. Qb3 e4 11. Rd1 Qe7 12. Nd4 Na6 13. Bf4 Qxb4 14. Qxb4 Nxb4 15. Bd6 Nd7 16. Bxf8 Nxf8 17. Rab1 Na6 18. Na4 c5 19. Nb3 b6 20. f3 Bd7 21. Nb2 Re8 22. a4 Nb4 23. a5 Nc2 24. fxe4 fxe4 25. Rd2 Ne3 26. Nd1 Nxc4 27. Ra2 Bc6 28. axb6 axb6 29. Rc1 b5 30. e3 Nd7 31. Ra6 Rc8 32. Bh3 Nce5 33. Nxc5 Bb7 34. Be6+ Kh8 35. Rd6 Bf8 36. Bxd7 Rxc5 37. Rxc5 Bxd6 38. Rxb5 Nf3+ 39. Kf2 1-0

[Event "Oberliga NRW 2223"]
[Site "Germany"]
[Date "2022.09.11"]
[Round "1.1"]
[White "Jens, Jelmer"]
[Black "Siebrecht, Sebastian"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "2420"]
[BlackElo "2378"]
[PlyCount "74"]
[EventDate "2022.09.11"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Essen Katernberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Be7 7. 0-0 d6 8. c4 Nf6 9. Nc3 Nbd7 10. f4 Qc7 11. Qe2 b6 12. Bd2 Bb7 13. Rae1 h5 14. Rf3 g6 15. Kh1 h4 16. Rh3 Rh5 17. Nd4 0-0-0 18. b4 Kb8 19. Nd5 exd5 20. cxd5 Nc5 21. bxc5 dxc5 22. Nc6+ Bxc6 23. dxc6 c4 24. Bxc4 Nxe4 25. Qxe4 Rxd2 26. Bxf7 Rf5 27. Bxg6 Rxf4 28. Qe3 Rdf2 29. g3 R4f3 30. Qe4 Bd8 31. Bh5 Rc3 32. Rd1 Be7 33. Be2 b5 34. Rf1 Qxc6 35. Qxc6 Rxf1+ 36. Bxf1 Rxc6 37. gxh4 Rc1 1/2-1/2

[Event "Oberliga NRW 2122"]
[Site "Germany"]
[Date "2022.05.08"]
[Round "9.1"]
[White "Jens, Jelmer"]
[Black "Koscielski, Janusch"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2411"]
[BlackElo "2252"]
[PlyCount "28"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Wattenscheid"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. Nf3 d5 3. Nc3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. Be2 Nf6 7. 0-0 Be7 8. d3 0-0 9. Qg3 Kh8 10. Kh1 c5 11. Bf4 Nc6 12. Rae1 a6 13. Bd1 b5 14. Nb1 Rc8 1/2-1/2

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2022.04.23"]
[Round "9.7"]
[White "Van Baar, Esper"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2241"]
[BlackElo "2415"]
[PlyCount "75"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Kennemer Combinatie"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. a4 a6 5. Be2 Ngf6 6. Nc3 g6 7. a5 Bg7 8. 0-0 0-0 9. d3 b5 10. axb6 Nxb6 11. Qe1 Bb7 12. Bd1 Qc7 13. h3 Rae8 14. Nd2 d5 15. exd5 Nfxd5 16. Nxd5 Nxd5 17. Bf3 e5 18. Nc4 Nb4 19. Bxb7 Nxc2 20. Qa5 Qxb7 21. Nd6 Qe7 22. Nxe8 Nxa1 23. Qxa1 Rxe8 24. Qxa6 Rb8 25. Qa3 Bf8 26. Re1 Qd6 27. Be3 Qd5 28. Rc1 Rb3 29. Qa5 Rxd3 30. Bxc5 Rb3 31. Qc7 Bxc5 32. Rxc5 Qb7 33. Qxe5 Rxb2 34. Rc7 Rb1+ 35. Kh2 Qb8 36. Qf4 Qf8 37. h4 h5 38. g3 1/2-1/2

[Event "Oberliga NRW 2122"]
[Site "Germany"]
[Date "2022.04.10"]
[Round "8.1"]
[White "Zatonskih, Anna"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "A81"]
[WhiteElo "2393"]
[BlackElo "2411"]
[PlyCount "154"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Bochum II"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nd2 Bg7 5. e4 d6 6. c3 Nc6 7. exf5 gxf5 8. d5 Ne5 9. Qe2 0-0 10. Nh3 c6 11. Nf4 cxd5 12. Nxd5 Nxd5 13. Bxd5+ Kh8 14. f4 Ng4 15. 0-0 Qb6+ 16. Kh1 Ne3 17. Nc4 Qb5 18. Bxe3 Qxd5+ 19. Kg1 Bd7 20. Rfd1 Qe6 21. Na5 Qe4 22. Qd3 Qa4 23. Nb3 Bb5 24. Qc2 b6 25. Nd4 Qxc2 26. Nxc2 Bd7 27. Rd2 Kg8 28. Bd4 Bh6 29. Re1 Kf7 30. Ne3 Rg8 31. Nd5 Rae8 32. Rde2 Bf8 33. c4 Rg6 34. b3 h5 35. a4 h4 36. Re3 e6 37. Nc3 hxg3 38. hxg3 Bh6 39. Ne2 e5 40. Bc3 Reg8 41. Kf2 Bc6 42. Rf1 Re8 43. Ke1 Bg2 44. Rf2 Bh3 45. Rh2 Bg4 46. Kf2 Rge6 47. Bd2 Kg6 48. Kf1 Bg7 49. Kf2 Kf7 50. fxe5 dxe5 51. Nc3 e4 52. Nd5 Rh6 53. Rxh6 Bxh6 54. Nf4 Rd8 55. Ke1 Bg7 56. Bc3 Rd1+ 57. Kf2 Bf8 58. Re1 Bc5+ 59. Kf1 a5 60. Nd5 Rd3 61. Kg2 Rf3 62. b4 axb4 63. Bxb4 Bd4 64. Re2 Rb3 65. Rd2 Be5 66. a5 bxa5 67. Bxa5 Rxg3+ 68. Kf1 e3 69. Rc2 Bh3+ 70. Ke2 Bg4+ 71. Kd3 f4 72. Rh2 Bf5+ 73. Ke2 Rg1 74. Bc7 Bxc7 75. Nxc7 Bg4+ 76. Kd3 Rd1+ 77. Ke4 e2 0-1

[Event "Oberliga NRW 2122"]
[Site "Germany"]
[Date "2022.04.03"]
[Round "5.1"]
[White "Jens, Jelmer"]
[Black "Bosch, Jeroen"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2411"]
[BlackElo "2428"]
[PlyCount "63"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Letmathe"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Nd7 7. Bc4 Nf6 8. Ne5 e6 9. Qe2 b5 10. Bb3 Qc7 11. 0-0 Bd6 12. d4 0-0 13. Bf4 a5 14. c3 Bb7 15. Rad1 Rad8 16. Rfe1 Nd5 17. Bg3 Rfe8 18. Bc2 Rb8 19. Qh5 f5 20. Nd3 b4 21. Bxd6 Qxd6 22. Nc5 Nf6 23. Qh3 bxc3 24. bxc3 Bc8 25. Bb3 Kf8 26. Re5 Ng4 27. Re2 h6 28. Rde1 Rb5 29. f3 Nf6 30. Nxe6+ Bxe6 31. Bxe6 Qa3 32. Qg3 1-0

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2022.03.12"]
[Round "7.9"]
[White "Van de Oudeweetering, Arthur"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2276"]
[BlackElo "2415"]
[PlyCount "37"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Apeldoorn Amevo"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Na3 Qd8 7. Nc2 Nbd7 8. Bd3 b6 9. Bf4 Bb7 10. 0-0 Be7 11. Qe2 0-0 12. Rad1 a6 13. Rfe1 b5 14. dxc5 Bxc5 15. Ne5 Nd5 16. Nxd7 Qxd7 17. Be5 Qe7 18. Qg4 g6 19. Nd4 1/2-1/2

[Event "Oberliga NRW 2122"]
[Site "Germany"]
[Date "2022.03.06"]
[Round "4.1"]
[White "Tomic, Bosko"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "B62"]
[WhiteElo "2422"]
[BlackElo "2411"]
[PlyCount "60"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Essen Katernberg"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e6 7. Bc4 Qb6 8. Ndb5 Ne5 9. Bb3 a6 10. Nd4 Be7 11. 0-0 Bd7 12. Kh1 Rc8 13. Be3 Qc7 14. f4 Nc4 15. Bxc4 Qxc4 16. Qf3 0-0 17. e5 dxe5 18. fxe5 Nd5 19. Nxd5 Qxd5 20. Qg3 Qe4 21. c3 Rc5 22. Bf4 Rd5 23. Rae1 Qg6 24. Qe3 Bh4 25. Rd1 Be7 26. c4 Rc5 27. Nf5 exf5 28. Rxd7 Qe6 29. Rxb7 Rxc4 30. Rb6 Bc5 0-1

[Event "Oberliga NRW 2122"]
[Site "Germany"]
[Date "2021.11.28"]
[Round "2.1"]
[White "Jens, Jelmer"]
[Black "Fiebig, Thomas"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "2411"]
[BlackElo "2415"]
[PlyCount "41"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Brackel"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. dxc5 Bxc5 6. Bd3 Nf6 7. Qe2 Nc6 8. 0-0 Nb4 9. e5 Nd7 10. Nb3 Be7 11. a3 Nxd3 12. cxd3 Nc5 13. Nxc5 Bxc5 14. Bg5 f6 15. exf6 gxf6 16. Ne5 0-0 17. Bh6 fxe5 18. Qg4+ Kf7 19. Qh5+ Kg8 20. Qg4+ Kf7 21. Qh5+ 1/2-1/2

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2021.11.27"]
[Round "4.5"]
[White "Fedorchuk, Sergey A"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "B69"]
[WhiteElo "2608"]
[BlackElo "2415"]
[PlyCount "53"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "En Passant"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 gxf6 12. Kb1 b4 13. Ne2 h5 14. f5 e5 15. Nc1 Qb6 16. Bc4 Na5 17. Bd5 Rc8 18. b3 Bf8 19. Nd3 Rb8 20. Qe1 Ke7 21. Qh4 Bh6 22. Bxf7 Kxf7 23. Ndxe5+ fxe5 24. Nxe5+ dxe5 25. Rxd7+ Kg8 26. Qg3+ Kf8 27. Qxe5 1-0

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2021.11.06"]
[Round "3.10"]
[White "Hendriks, Peter"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "A02"]
[WhiteElo "2012"]
[BlackElo "2415"]
[PlyCount "42"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. f4 c5 2. Nf3 g6 3. d3 Bg7 4. e3 Nc6 5. Be2 Nf6 6. 0-0 b5 7. Qe1 d6 8. Qh4 Rb8 9. e4 b4 10. Nbd2 a5 11. f5 gxf5 12. Qg5 Rg8 13. exf5 Bf8 14. Qe3 Ng4 15. Qf4 Bh6 16. Qc4 d5 17. Qb3 Qd6 18. Bd1 Nd4 19. Qa4+ Bd7 20. Qxa5 Be3+ 21. Kh1 Nxf5 0-1

[Event "Oberliga NRW 2122"]
[Site "Germany"]
[Date "2021.10.31"]
[Round "1.1"]
[White "Buckels, Valentin"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2457"]
[BlackElo "2411"]
[PlyCount "65"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Muelheim Nord II"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 f5 2. Bg5 g6 3. Nc3 Bg7 4. h4 h6 5. Bf4 Nf6 6. Qd3 d6 7. Qg3 Kf7 8. e4 fxe4 9. Bc4+ e6 10. 0-0-0 Nh5 11. Qh2 Nc6 12. Be3 Nf6 13. f3 d5 14. Be2 Ne7 15. g4 exf3 16. Bxf3 h5 17. gxh5 Nxh5 18. Bxh5 Rxh5 19. Nh3 Nf5 20. Bg5 Qd6 21. Nf4 Rh7 22. Qg1 Bd7 23. Nce2 e5 24. Nd3 exd4 25. Rf1 c5 26. h5 Kg8 27. Bf4 Qe7 28. hxg6 Rxh1 29. Qxh1 Be6 30. Qh7+ Kf8 31. Ng3 Ke8 32. Nxf5 Bxf5 33. Qg8+ 1-0

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2021.10.09"]
[Round "2.8"]
[White "Jens, Jelmer"]
[Black "Provoost, Simon"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2415"]
[BlackElo "2220"]
[PlyCount "139"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Sas van Gent"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c6 2. Nf3 d5 3. Nc3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. d3 Nbd7 10. Qe2 dxe4 11. Nxe4 e5 12. Kh1 Nxe4 13. Qxe4 Bg5 14. f4 exf4 15. Bxf4 Bxf4 16. Qxf4 Nf6 17. Rae1 Qd7 18. Qf5 Qxf5 19. Rxf5 Rfe8 20. Rfe5 Rxe5 21. Rxe5 Re8 22. Rxe8+ Nxe8 23. d4 Nc7 24. Kg1 Kf8 25. Kf2 Ke7 26. c4 Kd6 27. Ke3 h6 28. b4 b6 29. c5+ bxc5 30. dxc5+ Kd7 31. Kd4 Ne6+ 32. Kc4 Kc7 33. h4 g5 34. Bh3 Ng7 35. Bg4 f6 36. a4 a6 37. hxg5 hxg5 38. Kd4 Kb7 39. Ke4 Kc7 40. Be2 Kb7 41. g4 Ka7 42. Bf1 Kb7 43. Bc4 Ka7 44. b5 axb5 45. axb5 cxb5 46. Bxb5 Kb7 47. Kd5 Kc7 48. Bd3 Kd7 49. Bg6 Ke7 50. c6 Ne6 51. Bf5 Nc7+ 52. Kc5 Na8 53. Bd7 Nc7 54. Kb6 Kd8 55. Bf5 Na8+ 56. Kb7 Nc7 57. Bd3 Nd5 58. Bc4 Nc7 59. Bf7 Nb5 60. Kb6 Nc7 61. Bg8 Na8+ 62. Kc5 Ke7 63. Bd5 Nc7 64. Bf3 Na8 65. Bd1 Nc7 66. Bb3 Na8 67. Kd5 Nc7+ 68. Ke4 Kd6 69. Kf5 Ke7 70. Kg6 1/2-1/2

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2021.09.18"]
[Round "1.6"]
[White "Suvorov, Luca"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2280"]
[BlackElo "2415"]
[PlyCount "52"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Zuid Limburg"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 f5 2. Bg5 g6 3. Nc3 Bg7 4. e3 d6 5. Bc4 Nc6 6. Qe2 h6 7. Bh4 Nf6 8. 0-0-0 g5 9. Bg3 a6 10. e4 fxe4 11. Nxe4 d5 12. Nxf6+ Bxf6 13. Qh5+ Kf8 14. Bd3 Nxd4 15. Nf3 Nxf3 16. Qxf3 Kg7 17. Rhe1 c6 18. Be5 Bd7 19. Re2 Qf8 20. Qg3 Re8 21. Rde1 Bxe5 22. Qxe5+ Qf6 23. Qc7 Qf4+ 24. Qxf4 gxf4 25. Rxe7+ Kf6 26. Rxe8 Bxe8 1/2-1/2

[Event "NED-chT 1920"]
[Site "Netherlands"]
[Date "2020.03.07"]
[Round "6.6"]
[White "Jens, Jelmer"]
[Black "Admiraal, Miguoel"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2413"]
[BlackElo "2506"]
[PlyCount "75"]
[EventDate "2019.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Nd7 7. Bc4 Nf6 8. Ne5 e6 9. Qe2 b5 10. Bb3 Qc7 11. d4 Bd6 12. 0-0 0-0 13. c3 c5 14. Qxb5 a5 15. Qa4 Ba6 16. Re1 Rab8 17. Bd1 cxd4 18. Qxd4 Rfd8 19. Bf3 Bb7 20. Kf1 Ba6+ 21. Kg1 Ba3 22. Qe3 Bxb2 23. Bxb2 Rxb2 24. Red1 Rc8 25. c4 Bb7 26. Bxb7 Qxb7 27. g4 h6 28. Rd4 Rb1+ 29. Rxb1 Qxb1+ 30. Kg2 Qxa2 31. h4 h5 32. g5 Ng4 33. Nxg4 hxg4 34. g6 Qa4 35. gxf7+ Kf8 36. Qxe6 Qc6+ 37. Qxc6 Rxc6 38. Rd8+ 1/2-1/2

[Event "NED-chT 1920"]
[Site "Netherlands"]
[Date "2020.02.01"]
[Round "5.8"]
[White "Feygin, Michael"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "B57"]
[WhiteElo "2474"]
[BlackElo "2413"]
[PlyCount "86"]
[EventDate "2019.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]
[WhiteTeam "En Passant"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Nde2 e6 8. 0-0 Be7 9. Kh1 Bd7 10. Bb3 Na5 11. Be3 Qc7 12. Qd3 a6 13. a3 0-0 14. Ba2 Rac8 15. Rad1 Nc4 16. Bc1 b5 17. f4 Rfd8 18. f5 d5 19. exd5 exf5 20. Bxc4 Qxc4 21. d6 Bf8 22. Bg5 Be6 23. Bxf6 gxf6 24. Qg3+ Qg4 25. Rf3 Kh8 26. Qf2 Bxd6 27. Rd4 Qg5 28. Rh3 Rc4 29. Rd1 Bc7 30. Rhd3 Rg8 31. Nd4 Be5 32. Nf3 Qh5 33. Rd8 Rcg4 34. Ne2 Bxb2 35. c4 bxc4 36. Ng3 Qh6 37. Qxb2 Rxg3 38. Qf2 R3g4 39. h3 f4 40. Qd4 Rxg2 41. h4 Rxd8 42. Qxd8+ Rg8 43. Qe7 Bg4 0-1

[Event "GER CupT 1920 prel6"]
[Site "Erkenschwick"]
[Date "2020.01.12"]
[Round "2.1"]
[White "Ivanisevic, Ivan"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "2618"]
[BlackElo "2413"]
[PlyCount "55"]
[EventDate "2020.01.11"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Lingen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 f5 2. d4 Nf6 3. Nc3 d6 4. Bg5 Nbd7 5. Qc2 g6 6. 0-0-0 Bg7 7. Nh3 c6 8. Nf4 Nf8 9. e3 Qa5 10. h4 h6 11. Bxf6 Bxf6 12. h5 g5 13. Ng6 Rh7 14. Bd3 Rf7 15. Kb1 Bd7 16. Ne2 0-0-0 17. Nc1 Bg7 18. c5 Nxg6 19. hxg6 Rf6 20. Ne2 dxc5 21. dxc5 e5 22. Ng3 e4 23. Bc4 Rxg6 24. Nh5 Qxc5 25. Bf7 Qxc2+ 26. Kxc2 Rf6 27. Nxf6 Bxf6 28. Rxh6 1-0

[Event "GER CupT 1920 prel6"]
[Site "Erkenschwick"]
[Date "2020.01.11"]
[Round "1.2"]
[White "Boidman, Yuri"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2374"]
[BlackElo "2413"]
[PlyCount "42"]
[EventDate "2020.01.11"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Heimbach Weis/Neuwied"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. Be3 Nc6 6. Qd2 Nf6 7. Nc3 e6 8. 0-0-0 Be7 9. Bf4 Ng4 10. Rg1 Nge5 11. Nxe5 Nxe5 12. Nb5 axb5 13. Bxe5 0-0 14. Bxd6 Rxa2 15. Kb1 Ra4 16. f3 Bxd6 17. Qxd6 Qa5 18. b3 Ra1+ 19. Kb2 Ra2+ 20. Kb1 b4 21. Qd4 e5 0-1

[Event "NED-chT 1920"]
[Site "Netherlands"]
[Date "2019.12.14"]
[Round "4.4"]
[White "Jens, Jelmer"]
[Black "Lammens, Tim"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2413"]
[BlackElo "2248"]
[PlyCount "48"]
[EventDate "2019.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Apeldoorn MuConsult"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. d4 Bd6 7. Be2 0-0 8. 0-0 Re8 9. a4 Bg4 10. Re1 Na6 11. h3 Be6 12. c3 Qd7 13. Bf1 Nc7 14. Nd2 f5 15. Nc4 Bf8 16. a5 Rad8 17. b4 f6 18. Qd3 g5 19. Bd2 f4 20. h4 Bf5 21. Qf3 Bg4 22. Qd3 Bf5 23. Qf3 Bg4 24. Qd3 Bf5 1/2-1/2

[Event "NED-chT 1920"]
[Site "Netherlands"]
[Date "2019.11.23"]
[Round "3.10"]
[White "Ris, Robert"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "2453"]
[BlackElo "2413"]
[PlyCount "61"]
[EventDate "2019.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "BSG"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nd5 e6 7. Nxf6+ Qxf6 8. Nb5 Qd8 9. c4 a6 10. Nc3 Be7 11. Be2 0-0 12. 0-0 Rb8 13. Be3 b6 14. f4 Bb7 15. Qd2 Ba8 16. Rac1 Rb7 17. Bd3 Qb8 18. a3 Na5 19. Qe2 Nb3 20. Rcd1 Rc8 21. f5 Bf8 22. fxe6 fxe6 23. e5 Nc5 24. Bb1 dxe5 25. b4 Nd7 26. Bxh7+ Kxh7 27. Qh5+ Kg8 28. Qf7+ Kh8 29. Rf3 Nf6 30. Rh3+ Nh7 31. Qg6 1-0

[Event "NED-chT 1920"]
[Site "Netherlands"]
[Date "2019.11.02"]
[Round "2.7"]
[White "Sekandar, Kambiz"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2146"]
[BlackElo "2413"]
[PlyCount "102"]
[EventDate "2019.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Charlois Europoort"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Be2 Be7 7. 0-0 0-0 8. Ne5 cxd4 9. cxd4 Rd8 10. Be3 Qa5 11. Nc3 Nbd7 12. Nc4 Qc7 13. Rc1 b6 14. Qd2 Bb7 15. Bf4 Qc6 16. Bf3 Qc8 17. Bd6 Bf8 18. Bxb7 Qxb7 19. Bg3 Rac8 20. Ne3 Nc5 21. f3 Nh5 22. Bh4 Rd7 23. Ne2 e5 24. d5 a5 25. Rfd1 g6 26. Ng4 Bg7 27. Ng3 Nf4 28. d6 f5 29. Nf6+ Bxf6 30. Bxf6 Ncd3 31. Rc3 Rc6 32. Rxd3 Nxd3 33. Qxd3 Rcxd6 34. Qc4+ Rd5 35. a4 b5 36. axb5 Qb6+ 37. Kf1 Qe6 38. Qc8+ Kf7 39. Rxd5 Qxd5 40. Bxe5 Qd1+ 41. Kf2 Rd2+ 42. Ke3 Rd3+ 43. Kf2 Qd2+ 44. Kf1 Qe3 45. Qc4+ Kf8 46. Qc2 Rd2 47. Qc8+ Ke7 48. Qc7+ Ke6 49. Qc8+ Kxe5 50. Qb8+ Kd4 51. Qa7+ Kd3 0-1

[Event "NED-chT 1920"]
[Site "Netherlands"]
[Date "2019.09.28"]
[Round "1.10"]
[White "De Boer, Eelke"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2310"]
[BlackElo "2413"]
[PlyCount "75"]
[EventDate "2019.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f3 Be7 10. h4 h6 11. Be3 h5 12. Bg5 Ne5 13. Be2 b5 14. Rde1 b4 15. Nd1 Qb6 16. Ne3 a5 17. Rd1 a4 18. Bxf6 Bxf6 19. f4 b3 20. cxb3 axb3 21. a3 Nc6 22. Nb5 0-0 23. Nxd6 Bxb2+ 24. Kxb2 Rxa3 25. Ra1 Ra2+ 26. Rxa2 bxa2+ 27. Nb5 Rb8 28. Ka1 Nb4 29. Na3 Nc2+ 30. Qxc2 Qxe3 31. Kxa2 Ra8 32. Qd3 Qc5 33. Rb1 Bc6 34. Rb3 Ra4 35. Bf3 Rd4 36. Qc2 Qd6 37. e5 Qd8 38. Qxc6 1-0

[Event "NRW Cup Final"]
[Site "Germany"]
[Date "2019.07.07"]
[Round "2.1"]
[White "Jens, Jelmer"]
[Black "Wegerle, Joerg"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2402"]
[BlackElo "2411"]
[PlyCount "59"]
[EventDate "2019.07.06"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Sodingen/Castrop SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. 0-0 d6 6. c3 Qe7 7. b4 Bb6 8. a4 a5 9. b5 Nb8 10. Nbd2 0-0 11. Re1 Re8 12. h3 h6 13. d4 Nbd7 14. Ba3 g6 15. Ba2 Qf8 16. dxe5 Nxe5 17. Nxe5 Rxe5 18. Qf3 Qe7 19. Nc4 Rxe4 20. Rxe4 Nxe4 21. Nxb6 cxb6 22. Re1 Bf5 23. g4 Re8 24. Kg2 Qh4 25. gxf5 Re5 26. Rxe4 Qxe4 27. Qxe4 Rxe4 28. fxg6 Rxa4 29. gxf7+ Kg7 30. Bxd6 1-0

[Event "NRW Cup Final"]
[Site "Germany"]
[Date "2019.07.06"]
[Round "1.1"]
[White "Jens, Jelmer"]
[Black "Tomic, Bosko"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2402"]
[BlackElo "2428"]
[PlyCount "51"]
[EventDate "2019.07.06"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Essen Katernberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. Qe2 d6 8. f4 Nbd7 9. Kh1 Be7 10. c4 b6 11. Nc3 g6 12. b3 Bb7 13. Bb2 h5 14. Rac1 h4 15. Nd5 Qd8 16. Nxe7 Qxe7 17. b4 Nh5 18. Kg1 e5 19. fxe5 Nxe5 20. Qe3 Nxd3 21. Qxd3 0-0 22. Rce1 Rae8 23. Qc3 Kh7 24. Nf5 Qg5 25. Nxd6 Re7 26. Nxf7 1-0

[Event "Oberliga NRW 1819"]
[Site "Germany"]
[Date "2019.05.12"]
[Round "9.1"]
[White "Jens, Jelmer"]
[Black "Webb, Laurence"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2437"]
[BlackElo "2332"]
[PlyCount "105"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Muenster"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. g3 Nf6 7. Bg2 dxe4 8. Nxe4 Nxe4 9. Qxe4 Qd5 10. 0-0 Qxe4 11. Bxe4 Nd7 12. d4 0-0-0 13. Bg2 Be7 14. c3 Bf6 15. Re1 Rhe8 16. Kf1 Nb6 17. Bf4 Nd5 18. Bd2 Nb6 19. Rad1 e5 20. dxe5 Rxe5 21. Bf3 Rxe1+ 22. Kxe1 Nc4 23. Bc1 Rxd1+ 24. Bxd1 Kd7 25. Ke2 Kd6 26. Kd3 b5 27. f4 c5 28. a4 a6 29. axb5 axb5 30. Bb3 Kd5 31. Ba2 Be7 32. g4 g6 33. Bb3 f5 34. g5 Bd8 35. Ba2 Bc7 36. h4 Bd8 37. Bb3 Be7 38. Ba2 Bd8 39. Bd2 Be7 40. Be3 Bf8 41. Bc1 Be7 42. b3 Nd6 43. c4+ bxc4+ 44. bxc4+ Ke6 45. Bb3 Ne8 46. Ba4 Nc7 47. Bc6 Bd6 48. Ke3 Ke7 49. Kf3 Ne6 50. Bd5 Nd4+ 51. Kf2 Ne6 52. Kg3 Nd4 53. Kf2 1/2-1/2

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2019.05.11"]
[Round "9.3"]
[White "Jens, Jelmer"]
[Black "Van der Stricht, Geert"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2437"]
[BlackElo "2333"]
[PlyCount "67"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Calder HMC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 Qb6 7. Nb3 e6 8. Qe2 Be7 9. g4 0-0 10. Be3 Qc7 11. 0-0-0 b5 12. Qf2 Nfd7 13. Kb1 Bb7 14. h4 Nc6 15. g5 Nce5 16. a3 Rac8 17. Rg1 Rfe8 18. f4 Nc4 19. Bxc4 Qxc4 20. h5 Qc7 21. f5 exf5 22. exf5 Bf8 23. g6 Ne5 24. gxh7+ Kh8 25. Rg3 Qe7 26. Bd4 Qh4 27. Rdg1 Qxh5 28. Nd2 f6 29. Nde4 Qf7 30. b3 Rcd8 31. Nd2 d5 32. Ne2 Bc8 33. Nf1 Nc6 34. Bb6 0-1

[Event "Oberliga NRW 1819"]
[Site "Germany"]
[Date "2019.04.14"]
[Round "8.1"]
[White "Van den Doel, Erik"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2604"]
[BlackElo "2437"]
[PlyCount "59"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Koeln Porz"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 f5 2. Nc3 Nf6 3. Bg5 d5 4. e3 Be6 5. Nf3 Nbd7 6. Bd3 g6 7. 0-0 Bg7 8. Ne2 0-0 9. Rc1 Bf7 10. c4 e6 11. Qb3 Rb8 12. Ne5 Qe8 13. Bf4 Nxe5 14. Bxe5 Qd7 15. Nc3 Ne4 16. Bxg7 Kxg7 17. Bxe4 fxe4 18. Qa4 c6 19. Qxa7 g5 20. f4 exf3 21. Rxf3 Bh5 22. Rxf8 Rxf8 23. Rf1 Rxf1+ 24. Kxf1 Bg6 25. Kg1 Bd3 26. cxd5 Qf7 27. h3 g4 28. dxe6 Qc7 29. d5 c5 30. Qa4 1-0

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2019.04.13"]
[Round "8.5"]
[White "Baselmans, Luuk"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2025"]
[BlackElo "2437"]
[PlyCount "54"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Ba4 a6 5. c4 Ngf6 6. 0-0 g6 7. Nc3 Bg7 8. d4 cxd4 9. Nxd4 0-0 10. f3 Ne5 11. Bb3 e6 12. Be3 Qc7 13. Rc1 Nxc4 14. Bxc4 Qxc4 15. Ncb5 Qxa2 16. Nc7 Rb8 17. Qc2 Qa5 18. Nb3 Qb4 19. e5 dxe5 20. Bc5 Qf4 21. g3 Qg5 22. Qf2 b6 23. Bxf8 Bxf8 24. Rfd1 Bb7 25. Qxb6 Bxf3 26. Nxe6 Rxb6 27. Nxg5 Bxd1 0-1

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2019.02.09"]
[Round "6.9"]
[White "Vanhuyse, Nele"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "B57"]
[WhiteElo "2062"]
[BlackElo "2437"]
[PlyCount "82"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]
[WhiteTeam "Sas van Gent"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Nf3 e6 8. 0-0 a6 9. a3 Be7 10. Ba2 0-0 11. Be3 Qc7 12. Qe2 b5 13. Rad1 Bb7 14. Bf4 Ne5 15. Nxe5 dxe5 16. Bg5 h6 17. Bc1 Bxa3 18. bxa3 Qxc3 19. Rd3 Qc6 20. f3 Rac8 21. Rf2 Rfd8 22. Bb2 Qc5 23. g3 Rd7 24. Rxd7 Nxd7 25. Qd3 Nb6 26. Kg2 Na4 27. Bc1 Nc3 28. Bb3 a5 29. Bb2 a4 30. Bxc3 Qxc3 31. Qxb5 axb3 32. cxb3 Ba8 33. a4 f5 34. exf5 exf5 35. Qb6 e4 36. Qe6+ Kh8 37. Qxf5 exf3+ 38. Kh3 Bb7 39. Qf7 Qc6 40. Rd2 Re8 41. Rd7 Qxd7+ 0-1

[Event "Oberliga NRW 1819"]
[Site "Germany"]
[Date "2018.12.09"]
[Round "4.1"]
[White "Strohhaeker, Raoul"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2440"]
[BlackElo "2437"]
[PlyCount "99"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Koeln SF"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 0-0 6. Nbd2 d5 7. exd5 Nxd5 8. Ne4 Be7 9. b4 Bg4 10. h3 Bh5 11. 0-0 a6 12. a4 Kh8 13. Bb2 f6 14. Re1 Nf4 15. a5 Bf7 16. Bxf7 Rxf7 17. Re3 Bf8 18. Qc2 Rd7 19. Ne1 Qe8 20. Bc1 Rad8 21. Rf3 Ne6 22. Qb3 Rd5 23. Rxf6 Nf4 24. Bxf4 exf4 25. Rxf4 Qe5 26. g3 g5 27. Rg4 Qe7 28. h4 gxh4 29. Rxh4 Ne5 30. d4 Ng6 31. Rg4 Qe6 32. f3 h5 33. Rg5 Nf4 34. Rxd5 Nxd5 35. Ng2 Bh6 36. Re1 Qh3 37. c4 h4 38. cxd5 hxg3 39. Nxg3 Qxg3 40. Re6 Bf4 41. Kf1 Qh3 42. Rg6 Bg3 43. Qe3 Qh1+ 44. Qg1 Qh3 45. Ke2 Qh7 46. Rxg3 Qc2+ 47. Kf1 Qd3+ 48. Kf2 Qd2+ 49. Kf1 Qd3+ 50. Kf2 1/2-1/2

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2018.11.24"]
[Round "4.8"]
[White "Jens, Jelmer"]
[Black "Kevlishvili, Robby"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2437"]
[BlackElo "2485"]
[PlyCount "89"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Apeldoorn MuConsult"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. Be3 b5 8. Qd2 Nbd7 9. g4 Bb7 10. g5 Nh5 11. 0-0-0 Rc8 12. a3 g6 13. f4 Bg7 14. Nde2 Nb6 15. Qxd6 Qxd6 16. Rxd6 Nc4 17. Rd3 Bxc3 18. Rxc3 Bxe4 19. Rg1 0-0 20. Bf2 Bf5 21. Bg2 Nd6 22. Bc5 Rfd8 23. Rd1 Bg4 24. Rxd6 Bxe2 25. Bb7 Rxd6 26. Bxd6 Rxc3 27. bxc3 a5 28. Kd2 Bc4 29. Ba6 a4 30. Ke3 Ng7 31. Kd4 Nf5+ 32. Kc5 Be2 33. Be5 Ne3 34. Bxb5 Bxb5 35. Kxb5 Kf8 36. Kxa4 Nxc2 37. Ka5 Ke7 38. a4 Kd7 39. Kb6 Kc8 40. a5 Ne3 41. a6 Nd5+ 42. Kb5 Ne3 43. c4 Nc2 44. Kc6 Nb4+ 45. Kb6 1-0

[Event "Oberliga NRW 1819"]
[Site "Germany"]
[Date "2018.11.18"]
[Round "3.1"]
[White "Jens, Jelmer"]
[Black "Jackelen, Thomas"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2437"]
[BlackElo "2408"]
[PlyCount "44"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Siegburg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Be7 8. Qd2 a6 9. dxc5 Nxc5 10. 0-0-0 Qa5 11. Kb1 b5 12. Bd3 Bd7 13. Nd4 Nb4 14. a3 Nbxd3 15. cxd3 Qc7 16. Rc1 Qb7 17. b4 Na4 18. Nxa4 bxa4 19. Ka2 0-0 20. Rc2 Rfc8 21. Rhc1 Rxc2+ 22. Rxc2 Rc8 1/2-1/2

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2018.11.03"]
[Round "3.10"]
[White "Vedder, Henk"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2333"]
[BlackElo "2437"]
[PlyCount "75"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]
[WhiteTeam "En Passant"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 0-0 9. 0-0 cxd5 10. Bg5 c6 11. Na4 Bd6 12. Re1 h6 13. Bh4 Be6 14. c3 c5 15. Bc2 g5 16. Bg3 Bxg3 17. hxg3 Qd6 18. b4 Bg4 19. Qd2 cxb4 20. cxb4 d4 21. Nc5 Rfe8 22. a3 Rac8 23. Rxe8+ Rxe8 24. Re1 Rxe1+ 25. Qxe1 Be6 26. Qd2 Qe5 27. f4 gxf4 28. gxf4 Qh5 29. Nxe6 fxe6 30. Qxd4 Ng4 31. Qe4 Kg7 32. Qd4+ Kg8 33. Qd8+ Kf7 34. Qc7+ Kf6 35. Qc3+ e5 36. Qg3 Ke6 37. Bd1 Kf5 38. fxe5 1-0

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.18"]
[Round "7.2"]
[White "Jens, Jelmer"]
[Black "Lex, Gereon"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2435"]
[BlackElo "1836"]
[PlyCount "73"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Dudelange"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "LUX"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 b5 7. Bb3 0-0 8. Nc3 d6 9. a3 Bg4 10. Be3 Na5 11. Ba2 c5 12. Nd5 Nc6 13. c3 Rc8 14. b4 Kh8 15. Nxf6 Bxf6 16. h3 Bxf3 17. Qxf3 Ne7 18. Rfc1 Qd7 19. Qg4 Qxg4 20. hxg4 g5 21. Kf1 Kg7 22. bxc5 dxc5 23. c4 b4 24. Bb3 Rfd8 25. axb4 cxb4 26. Ke2 Ra8 27. c5 Nc6 28. Bd5 Rdc8 29. Ra4 a5 30. Rca1 Ra6 31. Bxc6 Raxc6 32. Rxa5 Be7 33. Rc1 b3 34. Rb5 Bxc5 35. Rcxc5 Rxc5 36. Bxc5 b2 37. d4 1-0

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.17"]
[Round "6.2"]
[White "Popovic, Milan S"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2309"]
[BlackElo "2435"]
[PlyCount "62"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Partizan"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "SRB"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 5. a3 a6 6. Bc4 Bc5 7. d3 d6 8. Nd5 Nxd5 9. Bxd5 Be6 10. Bxe6 fxe6 11. Be3 Bxe3 12. fxe3 d5 13. 0-0 0-0 14. Qe2 Qd6 15. Rf2 Qe7 16. Raf1 Rad8 17. Nd2 Rxf2 18. Qxf2 a5 19. exd5 exd5 20. d4 h6 21. c3 exd4 22. exd4 Re8 23. a4 Qe3 24. Qxe3 Rxe3 25. Kf2 Re8 26. Nf3 b6 27. Re1 Rxe1 28. Nxe1 Kf7 29. Kf3 Kf6 30. Nd3 Kf5 31. g4+ Kf6 1/2-1/2

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.16"]
[Round "5.2"]
[White "Jens, Jelmer"]
[Black "Handke, Florian"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2435"]
[BlackElo "2536"]
[PlyCount "52"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Aachen Aufwaerts"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 c6 5. Qd2 Nbd7 6. f4 d5 7. e5 Ne4 8. Nxe4 dxe4 9. e6 fxe6 10. Bc4 Nb6 11. Bb3 a5 12. a3 a4 13. Ba2 Bg7 14. Ne2 Nd5 15. c3 Qb6 16. Rd1 0-0 17. Bb1 e3 18. Qc1 e5 19. fxe5 Rf2 20. Bd3 Rxg2 21. Bxe3 Bg4 22. Bf2 Rf8 23. Bg3 Rf3 24. Bc4 e6 25. Qg5 Ne3 26. Bd3 Qxb2 0-1

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.15"]
[Round "4.2"]
[White "Jens, Jelmer"]
[Black "Ivic, Velimir"]
[Result "0-1"]
[ECO "B98"]
[WhiteElo "2435"]
[BlackElo "2487"]
[PlyCount "100"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Itaka"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "SRB"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Be7 9. Qf3 Nc6 10. 0-0-0 Nxd4 11. Rxd4 Qb6 12. Rd1 Bd7 13. g4 Bc6 14. Bf2 Qa5 15. Bd3 b5 16. g5 hxg5 17. fxg5 Nd7 18. g6 fxg6 19. Qg4 b4 20. Qxg6+ Kd8 21. Ne2 Qg5+ 22. Qxg5 Bxg5+ 23. Kb1 Ne5 24. Nd4 Bd7 25. Bg3 Ke7 26. Be2 Rhf8 27. Nf3 Bf6 28. Rxd6 Kxd6 29. Nxe5 Bxe5 30. Rd1+ Ke7 31. Bxe5 Rf2 32. Bd6+ Kf6 33. Bc4 Bb5 34. Bg3 Rg2 35. Bb3 a5 36. a4 bxa3 37. Rd6 Ra6 38. e5+ Ke7 39. bxa3 Rxd6 40. exd6+ Kd7 41. c4 Bc6 42. Kc1 Re2 43. Bc2 a4 44. Bf4 Rg2 45. Bg3 g5 46. Be5 Rf2 47. Bg3 Re2 48. Bb1 Re3 49. Kb2 Rb3+ 50. Ka2 Rc3 0-1

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.14"]
[Round "3.2"]
[White "Boidman, Yuri"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2358"]
[BlackElo "2435"]
[PlyCount "75"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Wirtzfeld"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 d6 5. h3 0-0 6. Be2 Nbd7 7. 0-0 Ne4 8. Nbd2 Nxd2 9. Qxd2 e5 10. Bh2 e4 11. Ne1 f5 12. c4 Nf6 13. Rc1 Be6 14. c5 dxc5 15. Rxc5 c6 16. b4 Rf7 17. b5 Bf8 18. Rc1 c5 19. Bc4 Bxc4 20. Rxc4 Qd5 21. Ra4 cxd4 22. Rxd4 Qxb5 23. a4 Qb3 24. Nc2 Rc8 25. Na1 Qe6 26. Rb1 Bc5 27. Rd8+ Rxd8 28. Qxd8+ Kg7 29. Nb3 Bb6 30. Qb8 Nd7 31. Qxb7 Ne5 32. Qb8 Nc6 33. Qa8 Rd7 34. Bf4 Qd5 35. Rc1 Nb4 36. Qe8 Rd8 37. Qe7+ Qf7 38. Qxb4 1-0

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.13"]
[Round "2.2"]
[White "Mamedov, Rauf"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2699"]
[BlackElo "2435"]
[PlyCount "61"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Odlar Yurdu"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "AZE"]
[BlackTeamCountry "NED"]

1. Nf3 f5 2. d3 d6 3. e4 e5 4. exf5 Bxf5 5. d4 e4 6. Qe2 Be7 7. Nfd2 Nc6 8. Qb5 d5 9. Nb3 a6 10. Qe2 Nf6 11. h3 Qd7 12. Nc3 a5 13. a4 Nb4 14. Be3 h5 15. Qd2 b6 16. Be2 h4 17. Nd1 g5 18. Nc1 g4 19. hxg4 Bxg4 20. c3 Bxe2 21. Qxe2 Nc6 22. Bg5 Ng4 23. Bf4 Rf8 24. g3 Nd8 25. Bxc7 Nxf2 26. Qh5+ Rf7 27. Nxf2 Qxc7 28. Ne2 hxg3 29. Ng4 g2 30. Rg1 Qd6 31. Ne5 1-0

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.12"]
[Round "1.2"]
[White "Jens, Jelmer"]
[Black "Petrakis, Stylianos"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2435"]
[BlackElo "2000"]
[PlyCount "57"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Chania Kaissa"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "GRE"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 b5 9. dxc5 Bxc5 10. Bd3 Qb6 11. Bf2 Bxf2+ 12. Qxf2 Qxf2+ 13. Kxf2 Nc5 14. Ke3 Bb7 15. Nd4 Rc8 16. Nce2 Nb4 17. a3 Ncxd3 18. cxd3 Nc2+ 19. Nxc2 Rxc2 20. Rhc1 Rxc1 21. Rxc1 Kd7 22. Kd4 Rc8 23. Rxc8 Bxc8 24. Kc5 Kc7 25. g4 h6 26. Ng3 g6 27. h4 Bd7 28. h5 Bc8 29. g5 1-0

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2018.10.06"]
[Round "2.1"]
[White "Van Foreest, Jorden"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "C91"]
[WhiteElo "2624"]
[BlackElo "2437"]
[PlyCount "69"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]
[WhiteTeam "Kennemer Combinatie"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. Be3 Bh5 11. Nbd2 Na5 12. dxe5 dxe5 13. h3 Nd7 14. Bc2 c5 15. g4 Bg6 16. Nf1 Qc7 17. Ng3 Rfd8 18. Qe2 c4 19. h4 f6 20. g5 Nc5 21. h5 Bf7 22. g6 hxg6 23. hxg6 Bxg6 24. Nh4 Bh7 25. Qg4 Nd3 26. Nh5 g5 27. Qe6+ Kh8 28. Nf5 Bxf5 29. Qxf5 Qd7 30. Qg6 Qg4+ 31. Kh2 Bf8 32. Nxf6 Qh4+ 33. Kg2 Nxe1+ 34. Rxe1 Be7 35. Rh1 1-0

[Event "Oberliga NRW 1819"]
[Site "Germany"]
[Date "2018.09.16"]
[Round "1.1"]
[White "Kotainy, Jens"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2429"]
[BlackElo "2437"]
[PlyCount "35"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Bochum SG"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 f5 2. d3 d6 3. e4 e5 4. Nc3 Nc6 5. exf5 Nge7 6. Bg5 h6 7. Bh4 Bxf5 8. d4 g5 9. Bg3 e4 10. Nd2 d5 11. Nb5 Rc8 12. Nb3 a6 13. Nc5 axb5 14. Nxb7 Qd7 15. Nc5 Qd8 16. Nb7 Qd7 17. Nc5 Qd8 18. Nb7 1/2-1/2

[Event "NRW Class1 1718"]
[Site "Germany"]
[Date "2018.04.29"]
[Round "9.2"]
[White "Jens, Jelmer"]
[Black "Gruen, Gerd Peter"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2413"]
[BlackElo "2215"]
[PlyCount "79"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Bielefeld"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. 0-0 0-0 8. c4 c6 9. Qc2 Na6 10. a3 Bf5 11. c5 Bb8 12. b4 Nc7 13. Nc3 Re8 14. Ne2 Ne6 15. Bb2 Bg6 16. Rae1 Bc7 17. a4 a6 18. Kh1 f5 19. g3 Bh5 20. Nfg1 f4 21. f3 Nxg3+ 22. hxg3 fxg3 23. Kg2 Qh4 24. Nh3 Ng5 25. Bf5 Rf8 26. Neg1 g6 27. Bd7 Rf6 28. Bc1 Nxh3 29. Bxh3 Raf8 30. Qd3 g5 31. Re7 Bg6 32. Qe3 g4 33. Rxc7 gxf3+ 34. Nxf3 Be4 35. Qg5+ Qxg5 36. Bxg5 Rxf3 37. Be6+ Kh8 38. Rxf3 Rxf3 39. Rc8+ Rf8+ 40. Kxg3 1-0

[Event "NED-chT 1718"]
[Site "Netherlands"]
[Date "2018.04.21"]
[Round "9.8"]
[White "Jens, Jelmer"]
[Black "Van der Lende, Ilias"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2408"]
[BlackElo "2325"]
[PlyCount "108"]
[EventDate "2017.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e6 2. d4 d5 3. Nc3 a6 4. Nf3 Nf6 5. Bd3 c5 6. exd5 Nxd5 7. Nxd5 Qxd5 8. c4 Qd8 9. d5 exd5 10. cxd5 Bd6 11. 0-0 0-0 12. Ng5 h6 13. Ne4 b5 14. Qf3 c4 15. Bc2 Be5 16. Re1 Nd7 17. Ng3 Re8 18. Bf4 Bb7 19. Rad1 Bxb2 20. Rxe8+ Qxe8 21. Nf5 Nf6 22. Bxh6 Bxd5 23. Qg3 g6 24. Nh4 Be4 25. Re1 Bxc2 26. Rxe8+ Rxe8 27. Nf3 Bf5 28. Qd6 Ng4 29. Bf4 Bg7 30. h3 Nf6 31. g4 Be6 32. Qxa6 b4 33. Qb5 Bd5 34. Ne5 g5 35. Bg3 b3 36. axb3 cxb3 37. Kf1 Rc8 38. Ke1 Ne4 39. Nd3 Bc4 40. Qd7 Be6 41. Qb7 Bc3+ 42. Ke2 Nxg3+ 43. fxg3 Re8 44. Kf3 Rd8 45. Qb5 Bf6 46. Ke3 Rd5 47. Qb8+ Kg7 48. h4 Rd8 49. Qb5 Bd4+ 50. Ke4 f5+ 51. gxf5 Bd5+ 52. Qxd5 Rxd5 53. Kxd5 gxh4 54. gxh4 b2 1/2-1/2

[Event "NRW Class1 1718"]
[Site "Germany"]
[Date "2018.04.08"]
[Round "8.1"]
[White "Jens, Jelmer"]
[Black "Stolte, Alexander"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2413"]
[BlackElo "2173"]
[PlyCount "107"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Sundern"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. g4 Bxg4 10. fxg4 Nxg4 11. Nxc6 bxc6 12. Bc4 d5 13. exd5 cxd5 14. Nxd5 Rc8 15. Bb3 Bxb2 16. Bd4 Ne5 17. 0-0 Rxc2 18. Bxc2 Qxd5 19. Rad1 Bxd4+ 20. Qxd4 Nf3+ 21. Rxf3 Qxf3 22. Bb3 Qb7 23. Rf1 e6 24. Bxe6 Qb6 25. Qxb6 axb6 26. Bb3 Kg7 27. Rc1 f5 28. Rc7+ Kh6 29. Rb7 Rf6 30. Bg8 Kg5 31. Rxh7 Kf4 32. Rh4+ Ke3 33. Rh3+ Ke4 34. Kf2 g5 35. Bb3 f4 36. Bc2+ Kd4 37. Rd3+ Kc4 38. Rd7 g4 39. Rg7 Rh6 40. Bb3+ Kb4 41. Rxg4 Rxh2+ 42. Kg1 Rd2 43. Rxf4+ Ka5 44. Kf1 b5 45. Ke1 Rh2 46. Kd1 Rb2 47. Kc1 Rh2 48. Bc2 Rh1+ 49. Kb2 Rh2 50. Rf3 Kb4 51. a3+ Ka5 52. Kb3 Rh5 53. Bd3 b4 54. axb4+ 1-0

[Event "NED-chT 1718"]
[Site "Netherlands"]
[Date "2018.04.07"]
[Round "8.4"]
[White "Beerdsen, Thomas"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2428"]
[BlackElo "2408"]
[PlyCount "38"]
[EventDate "2017.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Apeldoorn"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 g6 5. Bc4 Bg7 6. d3 d6 7. h3 Be6 8. Be3 d5 9. exd5 Nxd5 10. Bxd5 Bxd5 11. 0-0 0-0 12. Nxd5 Qxd5 13. Qd2 Rfe8 14. Bh6 Nd4 15. Nxd4 Qxd4 16. Bxg7 Kxg7 17. c3 Qd5 18. Rad1 Rad8 19. Qc2 c5 1/2-1/2

[Event "NRW Class1 1718"]
[Site "Germany"]
[Date "2018.03.11"]
[Round "7.2"]
[White "Jens, Jelmer"]
[Black "Schiffer, Stefan"]
[Result "1/2-1/2"]
[ECO "C86"]
[WhiteElo "2413"]
[BlackElo "2229"]
[PlyCount "47"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Bruehl"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 b5 7. Bb3 0-0 8. c3 d6 9. Rd1 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 c4 13. b4 cxb3 14. axb3 Bd7 15. Ba3 Bg4 16. h3 Bxf3 17. Qxf3 Nb7 18. b4 Rfc8 19. Bd3 Nd7 20. Rc1 Nb6 21. Rc2 Nd8 22. Nd2 Bg5 23. Nb3 Nb7 24. Na5 1/2-1/2

[Event "NED-chT 1718"]
[Site "Netherlands"]
[Date "2018.03.10"]
[Round "7.5"]
[White "Peng, Zhaoqin"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "2366"]
[BlackElo "2408"]
[PlyCount "68"]
[EventDate "2017.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "En Passant"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. h4 d6 5. h5 Nxh5 6. e4 Nf6 7. Bd3 Bg7 8. Nf3 Ng4 9. exf5 gxf5 10. Bg5 h6 11. Bh4 Nc6 12. Nd5 Qd7 13. Qe2 0-0 14. 0-0-0 e6 15. Ne3 Qf7 16. Bg3 e5 17. dxe5 dxe5 18. Nxg4 fxg4 19. Nh4 Bf6 20. Kb1 Be6 21. Bg6 Qg7 22. Bf5 Bxf5+ 23. Nxf5 Qg6 24. Qe4 h5 25. Nd6 Qxe4+ 26. Nxe4 Bg7 27. Rxh5 Rad8 28. Rd5 Nb4 29. Rxd8 Rxd8 30. b3 Rd1+ 31. Kb2 Re1 32. f3 Re2+ 33. Kc3 c5 34. Nxc5 a5 0-1

[Event "NED-chT 1718"]
[Site "Netherlands"]
[Date "2018.02.03"]
[Round "6.10"]
[White "Brenninkmeijer, Joris"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "A83"]
[WhiteElo "2501"]
[BlackElo "2408"]
[PlyCount "63"]
[EventDate "2017.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 Nc6 5. d5 Ne5 6. Qe2 c6 7. 0-0-0 Nf7 8. Bxf6 gxf6 9. Qxe4 cxd5 10. Nxd5 e6 11. f4 Bh6 12. Kb1 0-0 13. Ne3 f5 14. Qf3 Qc7 15. Ne2 b6 16. Rg1 Bb7 17. Qf2 Kh8 18. g4 fxg4 19. Rxg4 Ne5 20. Rh4 Bg7 21. Qg3 Nf3 22. Rg4 d5 23. Bg2 d4 24. Bxf3 Bxf3 25. Qxf3 dxe3 26. Qxe3 e5 27. Rh4 Rad8 28. Rc1 exf4 29. Nxf4 Qd6 30. Qe4 Bh6 31. Ne6 Rf1 32. Nf4 0-1

[Event "NRW Class1 1718"]
[Site "Germany"]
[Date "2017.12.17"]
[Round "4.2"]
[White "Eckardt, Joshua"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2249"]
[BlackElo "2413"]
[PlyCount "40"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Iserlohn Koenigsspringer"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 f5 2. Bg5 g6 3. Nc3 Bg7 4. h4 Nc6 5. Nf3 h6 6. Bf4 d6 7. e4 fxe4 8. Nxe4 Bg4 9. d5 Nd4 10. c3 e5 11. cxd4 exf4 12. Bb5+ Bd7 13. Qe2 Ne7 14. h5 g5 15. Nfxg5 hxg5 16. h6 Bxb5 17. Qh5+ Kd7 18. Qg4+ Ke8 19. Qh5+ Kd7 20. Qg4+ Ke8 1/2-1/2

[Event "NED-chT 1718"]
[Site "Netherlands"]
[Date "2017.12.16"]
[Round "5.7"]
[White "Martens, Martin"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2399"]
[BlackElo "2408"]
[PlyCount "94"]
[EventDate "2017.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Rotterdam Pathena"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. c4 f5 2. g3 Nf6 3. Bg2 g6 4. Nc3 Bg7 5. d3 d6 6. e4 Nc6 7. Nge2 0-0 8. 0-0 e5 9. Rb1 Be6 10. b3 Qd7 11. Nd5 Rae8 12. Bg5 Nh5 13. exf5 Bxf5 14. Qd2 Nd8 15. Be3 c6 16. Ndc3 a6 17. Rbe1 Bh3 18. f3 Bxg2 19. Kxg2 d5 20. Bh6 Bxh6 21. Qxh6 Ne6 22. Qc1 Nhg7 23. Nd1 Nc5 24. Qe3 Qd6 25. b4 Nce6 26. Qb6 Qd7 27. Nec3 Ng5 28. g4 N7e6 29. Ne2 dxc4 30. dxc4 Qd2 31. Qe3 Qxb4 32. Qc3 Qxc3 33. Ndxc3 Nd4 34. Ng1 Nge6 35. Kg3 Nf4 36. Re4 h5 37. c5 Kg7 38. h4 hxg4 39. Kxg4 Nd3 40. Na4 Rh8 41. f4 Nf5 42. Nf3 exf4 43. Rxe8 Rxe8 44. Rb1 Kf6 45. Kh3 Re3 46. Kg2 Re2+ 47. Kg1 Ne3 0-1

[Event "NED-chT 1718"]
[Site "Netherlands"]
[Date "2017.11.25"]
[Round "4.9"]
[White "Jens, Jelmer"]
[Black "Grafl, Florian"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2408"]
[BlackElo "2381"]
[PlyCount "97"]
[EventDate "2017.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "BSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 g6 6. g4 Bg7 7. Be3 0-0 8. g5 Nh5 9. Be2 c6 10. Qd2 b5 11. 0-0-0 Qa5 12. Nh4 Nb6 13. a3 Nc4 14. Bxc4 bxc4 15. dxe5 dxe5 16. Qd6 Bb7 17. Qc5 Qa6 18. Nf3 Rfe8 19. Nd2 Nf4 20. Qxc4 Ne6 21. Qxa6 Bxa6 22. Nb3 Bc8 23. Rd6 Nd8 24. Rgd1 Bg4 25. Rg1 Bc8 26. Nc5 Bf8 27. Rd2 Ne6 28. Nd7 Bxd7 29. Rxd7 Bc5 30. Bxc5 Nxc5 31. Rc7 Rec8 32. Rxc8+ Rxc8 33. Kd2 Ne6 34. Ne2 Kf8 35. Nc1 Ke7 36. Nd3 Kd6 37. Ke3 Rh8 38. h4 h6 39. gxh6 Rxh6 40. Rg4 f5 41. exf5 gxf5 42. Ra4 f4+ 43. Ke4 Rxh4 44. Rxa7 f3+ 45. Ke3 Ng5 46. Kd2 Ne4+ 47. Ke3 Ng5 48. Kd2 Ne4+ 49. Ke3 1/2-1/2

[Event "NED-chT 1718"]
[Site "Netherlands"]
[Date "2017.11.04"]
[Round "3.3"]
[White "Mollema, Thomas"]
[Black "Jens, Jelmer"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2222"]
[BlackElo "2408"]
[PlyCount "99"]
[EventDate "2017.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Calder HMC"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. 0-0 0-0 10. h3 Re8 11. Qf3 Be7 12. Bf4 Rb8 13. Nb5 Rb7 14. b3 c5 15. Rad1 Qb6 16. Rfe1 Be6 17. c4 d4 18. Bg5 Rbb8 19. Re2 a6 20. Na3 Nd7 21. Bf4 Bd6 22. Nc2 Qc7 23. Bxd6 Qxd6 24. Rde1 Nf6 25. Re5 Bd7 26. Qg3 Rxe5 27. Rxe5 Rc8 28. Bxh7+ Kf8 29. Bd3 a5 30. Ne1 a4 31. bxa4 Bxa4 32. Nf3 Bd7 33. Ng5 Qb8 34. Rxc5 Qxg3 35. Rxc8+ Bxc8 36. fxg3 Ba6 37. Nf3 Nd7 38. Nxd4 Ne5 39. Be2 Bxc4 40. Bxc4 Nxc4 41. Kf2 Ke7 42. Ke2 g6 43. Kd3 Nb6 44. Nf3 Kd6 45. Kd4 Nd7 46. Nd2 f6 47. Ne4+ Kc6 48. g4 f5 49. gxf5 gxf5 50. Ng3 1-0

[Event "NRW Class1 1718"]
[Site "Germany"]
[Date "2017.10.15"]
[Round "2.2"]
[White "Fluechter, Gregor"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2144"]
[BlackElo "2413"]
[PlyCount "78"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Brackel"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. h3 0-0 10. Nc3 f5 11. exf6 Rxf6 12. Be3 Bf5 13. Rc1 Ne7 14. Bd3 Qd6 15. Qc2 Ng3 16. Rg1 Bxd3 17. Qxd3 Ngf5 18. Kd2 Nc6 19. a3 Na5 20. Kc2 Nc4 21. Kb1 c6 22. Bg5 Rf7 23. Ne2 Qg6 24. Nf4 Qd6 25. Ne2 Re8 26. Bf4 Qg6 27. Be5 Nxd4 28. Qxg6 hxg6 29. Nexd4 Nxe5 30. Rge1 Rfe7 31. Rc2 Nd3 32. Rd1 Nf4 33. g3 Nxh3 34. Ka2 Rf8 35. Nh4 Rxf2 36. Nxg6 Re4 37. Rh1 Bxd4 38. Rxf2 Nxf2 39. Rh8+ Kf7 0-1

[Event "NED-chT 1718"]
[Site "Netherlands"]
[Date "2017.09.23"]
[Round "2.7"]
[White "Bachaus, Sander"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "2016"]
[BlackElo "2408"]
[PlyCount "148"]
[EventDate "2017.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Voerendaal"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 5. d3 a6 6. Bc4 h6 7. g4 b5 8. Bb3 Na5 9. Rg1 Nxb3 10. axb3 Bb7 11. g5 hxg5 12. Bxg5 Qe7 13. Nh4 Qe6 14. Nf5 Bf8 15. Qf3 Rxh2 16. Bh4 g6 17. Qg3 Rxh4 18. Nxh4 Bh6 19. Nxg6 d6 20. Rh1 Ng4 21. Rh4 b4 22. Nd5 Bxd5 23. exd5 Qxg6 24. Qxg4 Bg5 25. Rh8+ Ke7 26. Qh3 Rxh8 27. Qxh8 Bh6 28. Kf1 Qh5 29. Qg8 Qh1+ 30. Qg1 Qxd5 31. Qg2 Qc5 32. f3 Qd4 33. Re1 Qxb2 34. Qg4 Bd2 35. Re2 Qxc2 36. Qg5+ Bxg5 37. Rxc2 c5 38. Ra2 Ke6 39. Rxa6 Kd5 40. Ke2 Bf4 41. Ra2 Kd4 42. Rc2 d5 43. Ra2 f5 44. Ra8 Be3 45. Ra2 Bg5 46. Ra8 Bf4 47. Ra5 Be3 48. Ra2 e4 49. fxe4 fxe4 50. dxe4 Kxe4 51. Ra8 Bf4 52. Rh8 c4 53. bxc4 dxc4 54. Rd8 b3 55. Kd1 c3 56. Rc8 Kd3 57. Rd8+ Kc4 58. Rc8+ Kb4 59. Rc6 Bd2 60. Ra6 Be3 61. Rc6 Bc5 62. Kc1 Kc4 63. Rc8 Kd4 64. Rd8+ Ke3 65. Re8+ Kd3 66. Rd8+ Bd4 67. Rc8 Be3+ 68. Kb1 Kd2 69. Rd8+ Ke2 70. Rc8 Bd4 71. Rc7 Kd2 72. Rxc3 Kxc3 73. Kc1 b2+ 74. Kb1 Be5 0-1

[Event "NRW Class1 1718"]
[Site "Germany"]
[Date "2017.09.17"]
[Round "1.2"]
[White "Hainke, Guntram"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "A87"]
[WhiteElo "2265"]
[BlackElo "2413"]
[PlyCount "68"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Duesseldorf II"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 0-0 6. b3 d6 7. Bb2 c6 8. c4 Qc7 9. Qc2 Re8 10. Nbd2 e5 11. e4 fxe4 12. Nxe4 Bf5 13. Nxf6+ Bxf6 14. Qd2 e4 15. Ne1 Qg7 16. Nc2 c5 17. Rad1 Nc6 18. h3 h5 19. d5 Ne5 20. Ne3 Re7 21. Qc2 Rae8 22. Kh1 Nf7 23. Rb1 Bd4 24. Qe2 Bd7 25. Qd2 Ng5 26. h4 Nf3 27. Qe2 Rf8 28. b4 b6 29. bxc5 bxc5 30. Bxf3 exf3 31. Qd2 Re4 32. Qc2 Bf5 33. Nxf5 gxf5 34. Rg1 Qg4 0-1

[Event "NED-chT 1718"]
[Site "Netherlands"]
[Date "2017.09.16"]
[Round "1.9"]
[White "Jens, Jelmer"]
[Black "Peters, Luuk"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2408"]
[BlackElo "2201"]
[PlyCount "91"]
[EventDate "2017.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "SISSA"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. h3 g6 5. Bd3 Bg7 6. Bc2 0-0 7. d4 cxd4 8. cxd4 Nc6 9. 0-0 Nb4 10. Bb3 d5 11. e5 Ne4 12. Nc3 Nxc3 13. bxc3 Nc6 14. Bf4 Na5 15. Bc2 Qc7 16. Rc1 Nc4 17. Re1 Qc6 18. Ng5 f5 19. h4 e6 20. h5 Qe8 21. hxg6 Qxg6 22. Nh3 Bd7 23. Kh2 Rf7 24. Rg1 h5 25. f3 Bh6 26. Qe1 Bxf4+ 27. Nxf4 Qg5 28. Qg3 Rg7 29. Qxg5 Rxg5 30. Rh1 Kf7 31. Kg1 Rh8 32. Kf2 Rh6 33. Rh4 Be8 34. Bd3 Nb6 35. c4 dxc4 36. Bxc4 Nxc4 37. Rxc4 Bc6 38. Rc1 Kf8 39. Rch1 Be8 40. g4 fxg4 41. fxg4 Rg7 42. Rg1 Rg5 43. gxh5 Rf5 44. Ke3 Kf7 45. Rhg4 Ke7 46. Rg7+ 1-0

[Event "NRW Class Playoff"]
[Site "Germany"]
[Date "2017.07.02"]
[Round "1.2"]
[White "Zatonskih, Anna"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "A81"]
[WhiteElo "2424"]
[BlackElo "2408"]
[PlyCount "65"]
[EventDate "2017.07.02"]
[EventType "team-match"]
[EventRounds "1"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Bochum SV"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 f5 2. d4 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. b3 d6 7. Bb2 c6 8. Nbd2 Nbd7 9. Re1 e5 10. dxe5 Ng4 11. c4 dxe5 12. h3 Nh6 13. e4 f4 14. g4 Nf7 15. b4 h5 16. gxh5 gxh5 17. c5 a5 18. a3 axb4 19. axb4 Rxa1 20. Qxa1 b6 21. cxb6 Qxb6 22. Bc3 c5 23. Rb1 cxb4 24. Bxb4 Re8 25. Qa2 Qa6 26. Qb3 Qe6 27. Qxe6 Rxe6 28. Rc1 Ba6 29. Rc7 Rb6 30. Rxd7 Rxb4 31. Bf1 Bxf1 32. Kxf1 Bf6 33. Rc7 1/2-1/2

[Event "NRW Class2 1617"]
[Site "Germany"]
[Date "2017.05.21"]
[Round "9.1"]
[White "Richter, Gerald"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2114"]
[BlackElo "2386"]
[PlyCount "62"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Siegen"]
[BlackTeam "Erkenschwick"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. c4 0-0 6. Nc3 d6 7. 0-0 c6 8. d5 e5 9. dxe6 Bxe6 10. b3 Na6 11. Bb2 Qe7 12. Qd2 Rad8 13. Rad1 Rfe8 14. Qc1 d5 15. cxd5 Nxd5 16. Nxd5 Bxd5 17. Bxg7 Kxg7 18. Rfe1 Nc5 19. h4 Ne4 20. Ng5 Qe5 21. Nxe4 fxe4 22. e3 Rd6 23. Rd4 Rf6 24. Red1 g5 25. hxg5 Qxg5 26. Qc2 Qf5 27. R1d2 h5 28. Qd1 Re5 29. Kh2 Qg5 30. Qh1 h4 31. gxh4 Rh6 0-1

[Event "NED-chT 1617"]
[Site "Netherlands"]
[Date "2017.05.06"]
[Round "9.6"]
[White "Kouwenhoven, Arjen"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "2028"]
[BlackElo "2386"]
[PlyCount "94"]
[EventDate "2016.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Charlois Europoort"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 d6 7. c3 0-0 8. Re1 Re8 9. Nbd2 Bf8 10. Nf1 h6 11. Ng3 b5 12. Bb3 Na5 13. Bc2 c5 14. a4 Bd7 15. axb5 axb5 16. h3 Nc6 17. Bd2 Qb6 18. Rxa8 Rxa8 19. Nh4 Ra2 20. Bc1 b4 21. Bb3 Ra1 22. Nh5 Be7 23. Nxf6+ Bxf6 24. Qh5 Be8 25. Bd5 bxc3 26. bxc3 Ne7 27. Kh2 Nxd5 28. exd5 Qb3 29. Nf5 Qxd5 30. Qe2 Ra2 31. Bd2 Bc6 32. Ne3 Qe6 33. Qd1 Ba4 34. Qc1 Bg5 35. Nc4 Rc2 36. Qa1 Bxd2 37. Qxa4 Bf4+ 38. Kg1 Rxc3 39. Qa8+ Kh7 40. Qe4+ g6 41. g3 d5 42. Qe2 dxc4 43. gxf4 cxd3 44. Qd2 Qc4 45. fxe5 Rc2 46. Qe3 Qd5 47. Qf4 Re2 0-1

[Event "NED-chT 1617"]
[Site "Netherlands"]
[Date "2017.04.01"]
[Round "8.6"]
[White "Vedder, Richard"]
[Black "Jens, Jelmer"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "2213"]
[BlackElo "2386"]
[PlyCount "50"]
[EventDate "2016.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "En Passant"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. a4 Bg4 9. c3 Na5 10. Ba2 b4 11. cxb4 Nc6 12. Qb3 0-0 13. Qc3 Qd7 14. Bd5 Nxd5 15. exd5 Bxf3 16. dxc6 Bxc6 17. d4 exd4 18. Qxd4 Bf6 19. Qd1 Rfe8 20. Nc3 Qg4 21. Rxe8+ Rxe8 22. f3 Bxf3 23. Qxf3 Re1+ 24. Kf2 Bh4+ 25. g3 Rf1+ 0-1

[Event "NRW Class2 1617"]
[Site "Germany"]
[Date "2017.03.26"]
[Round "8.1"]
[White "Jens, Jelmer"]
[Black "Orlov, Andrey"]
[Result "1-0"]
[ECO "C76"]
[WhiteElo "2386"]
[BlackElo "2481"]
[PlyCount "97"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Gerresheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 5. c3 d6 6. d4 Bd7 7. 0-0 Bg7 8. Re1 h6 9. h3 Nge7 10. Be3 0-0 11. Nbd2 b5 12. Bc2 exd4 13. cxd4 f5 14. Bb3+ Kh7 15. d5 f4 16. dxc6 Nxc6 17. Bd5 fxe3 18. Rxe3 Rc8 19. Qb3 Na5 20. Qc2 c6 21. Bb3 d5 22. e5 Bf5 23. Qc5 Nb7 24. Qa7 Qc7 25. Rc1 Ra8 26. Qd4 c5 27. Qh4 Qd8 28. g4 Be6 29. Bc2 Rg8 30. Qh5 Bf8 31. Nh4 Qg5 32. Ndf3 Qxh5 33. gxh5 Kg7 34. hxg6 d4 35. Re4 Be7 36. Kh2 Rad8 37. Rd1 Rgf8 38. Kg3 a5 39. Rf4 a4 40. Nf5+ Bxf5 41. Rxf5 d3 42. Rxf8 Bxf8 43. Rxd3 Rxd3 44. Bxd3 c4 45. Bc2 Bc5 46. Nh4 a3 47. Nf5+ Kf8 48. g7+ Kg8 49. Be4 1-0

[Event "NED-CupT"]
[Site "Leiden"]
[Date "2017.03.18"]
[Round "1.4"]
[White "Jens, Jelmer"]
[Black "Dek, Lennart"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2386"]
[BlackElo "2266"]
[PlyCount "93"]
[EventDate "2017.03.18"]
[EventType "team-match"]
[EventRounds "1"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. Bxc6 dxc6 5. d3 Bg4 6. Nbd2 Nd7 7. h3 Bh5 8. g4 Bg6 9. Nh4 e5 10. Nf5 f6 11. Nc4 Qc7 12. Qf3 Bf7 13. h4 Nb6 14. b3 Nxc4 15. bxc4 h6 16. a4 0-0-0 17. a5 Be6 18. h5 Rg8 19. Be3 Bxf5 20. gxf5 Bd6 21. Ke2 Rgf8 22. Rhb1 Rd7 23. Ra2 Qd8 24. Qh1 Qe8 25. Kf3 Rff7 26. Kg4 Qe7 27. f3 Rc7 28. Qg1 Kd8 29. Qf2 Rd7 30. c3 Ke8 31. Rd1 Qd8 32. d4 cxd4 33. cxd4 exd4 34. Rxd4 a6 35. f4 Bc7 36. e5 fxe5 37. Re4 Rde7 38. Bc5 Qd7 39. fxe5 Rxe5 40. Rxe5+ Bxe5 41. Re2 Qd1 42. Qe1 Qd3 43. Rxe5+ Kd7 44. Re7+ Rxe7 45. Qxe7+ Kc8 46. Qe8+ Kc7 47. Bb6+ 1-0

[Event "NED-chT 1617"]
[Site "Netherlands"]
[Date "2017.03.11"]
[Round "7.10"]
[White "Jens, Jelmer"]
[Black "Bitalzadeh, Ali"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "2386"]
[BlackElo "2397"]
[PlyCount "130"]
[EventDate "2016.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. g3 Nf6 5. Bg2 0-0 6. Nge2 c5 7. h3 cxd4 8. Nxd4 Nc6 9. Be3 Bd7 10. Qd2 Qa5 11. Nde2 Rfc8 12. f4 Be6 13. 0-0 Nd7 14. Rad1 Nb6 15. b3 Nb4 16. f5 Bd7 17. Rc1 Nxa2 18. Nxa2 Qxa2 19. Bd4 Bxd4+ 20. Nxd4 Qb2 21. Rf3 Rc7 22. Rcf1 f6 23. h4 Rac8 24. R1f2 Kg7 25. Kh2 a5 26. g4 a4 27. g5 Rf8 28. Qb4 Rc4 29. c3 Qxf2 30. bxc4 Qxh4+ 31. Rh3 Qf4+ 32. Rg3 a3 33. Qxb6 a2 34. Qa5 fxg5 35. Qxa2 h5 36. Ne2 Qe5 37. Kh1 g4 38. Qd2 Rc8 39. Nf4 Rxc4 40. Kh2 Qf6 41. Nxg6 Bc6 42. Qd3 Ra4 43. e5 dxe5 44. Qd8 Qxf5 45. Nxe7 Qf6 46. Nxc6 bxc6 47. Qxf6+ Kxf6 48. Bxc6 Rf4 49. Re3 h4 50. Kg2 Ke6 51. Rd3 e4 52. Rd4 Ke5 53. Rd5+ Kf6 54. Rd4 Ke5 55. Rd5+ Kf6 56. Rh5 g3 57. Kh3 e3 58. Bb5 Rf5 59. Rxf5+ Kxf5 60. Be2 Ke4 61. Kg2 Kf4 62. Bd1 Ke4 63. Be2 Kf4 64. Bd1 Ke4 65. Be2 Kf4 1/2-1/2

[Event "NRW Class2 1617"]
[Site "Germany"]
[Date "2017.02.12"]
[Round "6.1"]
[White "Jens, Jelmer"]
[Black "Emunds, Hans Georg"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2386"]
[BlackElo "2227"]
[PlyCount "129"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Erkenschwick"]
[BlackTeam "Muenster SK II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. 0-0 Bd7 5. c3 Nf6 6. Re1 a6 7. Ba4 e5 8. h3 Be7 9. d4 b5 10. Bc2 0-0 11. d5 Na5 12. b3 Qc7 13. Be3 Rfc8 14. Nbd2 c4 15. b4 Nb7 16. a4 a5 17. Qb1 Bd8 18. axb5 Bxb5 19. Ba4 Bxa4 20. Rxa4 axb4 21. Rxb4 Na5 22. Qb2 Nd7 23. Ra1 Rab8 24. Raa4 Rxb4 25. Rxb4 h6 26. Nb1 Rb8 27. Na3 Rxb4 28. Qxb4 Qb8 29. Qxb8 Nxb8 30. Nd2 Kf8 31. Ndxc4 Nxc4 32. Nxc4 Ke7 33. f4 exf4 34. Bxf4 Bc7 35. Kf2 Nd7 36. Kf3 h5 37. Bg5+ Ke8 38. Be3 Ke7 39. Bd4 g6 40. Kf4 Ke8 41. Kg5 Bd8+ 42. Kh6 Bc7 43. Kg7 Ke7 44. Be3 Ke8 45. Bd4 Ke7 46. Kh6 Ke8 47. Kg5 Ke7 48. Kf4 Ke8 49. Ke3 Ke7 50. Kd3 Ke8 51. Kc2 Ke7 52. Kb3 f5 53. exf5 gxf5 54. Kb4 Nf6 55. Bxf6+ Kxf6 56. Kb5 Kg5 57. Kc6 Bd8 58. Kd7 Bf6 59. Ke6 Bxc3 60. Nxd6 Bb4 61. Nxf5 Kf4 62. d6 Bxd6 63. Nxd6 Kg3 64. Kf5 Kxg2 65. h4 1-0

