[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2021.07.09"]
[Round "7"]
[White "Groot, Rob"]
[Black "Peper, Jeroen"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "70"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. Bd3 Ne7 6. Bg5 0-0 7. 0-0 c6 8. c3 Qc7 9. Bxe7 Qxe7 10. Qc2 h6 11. Re1 Qc7 12. Nbd2 Nd7 13. a4 Nf6 14. Ne5 Bxe5 15. dxe5 Ng4 16. Nf3 Re8 17. Qe2 f6 18. h3 Nxe5 19. Nd4 Bd7 20. Bf5 Bxf5 21. Nxf5 Nc4 22. Qxe8+ Rxe8 23. Rxe8+ Kh7 24. Re7 Qf4 25. Rxg7+ Kh8 26. g4 h5 27. Re1 Ne5 28. Re3 Nf3+ 29. Kf1 Qc4+ 30. Kg2 Nh4+ 31. Nxh4 Kxg7 32. Nf5+ Kg6 33. Kg3 hxg4 34. hxg4 Kg5 35. f4+ Qxf4+ 0-1

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2020.09.25"]
[Round "6"]
[White "Hoogeveen, Luuk"]
[Black "Peper, Jeroen"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "1592"]
[PlyCount "45"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Bg4 3. Bg2 Nc6 4. 0-0 e5 5. h3 Bxf3 6. Bxf3 Qd7 7. Bg2 f6 8. d3 Nh6 9. c4 d4 10. Bxh6 gxh6 11. Nd2 Be7 12. a3 a5 13. b4 axb4 14. axb4 0-0 15. b5 Rxa1 16. Qxa1 Nd8 17. Kh2 Kh8 18. Qa8 b6 19. Ra1 f5 20. Qd5 Bd6 21. Ra8 Ne6 22. Nb3 Qe7 23. Rxf8+ 1/2-1/2

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2020.02.21"]
[Round "5"]
[White "Peper, Jeroen"]
[Black "Van Vleuten, Ronald"]
[Result "0-1"]
[ECO "D35"]
[BlackElo "1622"]
[PlyCount "70"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 Be7 5. Nf3 c6 6. Bf4 Nf6 7. e3 Bf5 8. Bd3 Bxd3 9. Qxd3 Nbd7 10. h3 0-0 11. 0-0 Re8 12. Rab1 a5 13. a3 Nb6 14. Ne5 Nfd7 15. b4 Nxe5 16. Bxe5 axb4 17. axb4 Ra3 18. Qc2 Nc4 19. Bg3 b5 20. Rfd1 f5 21. Ne2 g6 22. Nf4 Bf8 23. Nd3 Qa8 24. Qe2 Ra2 25. Qf3 Nd2 26. Qf4 Nxb1 27. Rxb1 Ra1 28. Rxa1 Qxa1+ 29. Kh2 Qa7 30. Nc5 Qf7 31. Nd3 Bg7 32. Qd6 Rc8 33. Nc5 Bf8 34. Qf4 Rd8 35. Bh4 Bd6 0-1

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2020.01.24"]
[Round "4"]
[White "Salomons, Quinten"]
[Black "Peper, Jeroen"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1819"]
[PlyCount "39"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 e6 5. Bg2 Nbd7 6. 0-0 Bd6 7. Nc3 0-0 8. Nd2 e5 9. cxd5 exd4 10. dxc6 dxc3 11. cxd7 Bxd7 12. bxc3 Qc7 13. Rb1 Rab8 14. Nb3 Bc6 15. Qc2 Bxg2 16. Kxg2 Rfc8 17. Bb2 Nd5 18. Rfd1 Qc6 19. Kg1 Be5 20. Qe4 1-0

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2019.12.20"]
[Round "3"]
[White "Peper, Jeroen"]
[Black "Heun, Jetze"]
[Result "1-0"]
[ECO "D36"]
[BlackElo "1475"]
[PlyCount "66"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 Nf6 5. Bg5 Nbd7 6. e3 Be7 7. Bd3 0-0 8. Nf3 c6 9. Qc2 h6 10. Bh4 Ne8 11. Bg3 Ndf6 12. h3 c5 13. 0-0 cxd4 14. Nxd4 Nd6 15. Rac1 Bd7 16. Nf5 Nxf5 17. Bxf5 Bc6 18. Rfd1 Bd6 19. Bxd6 Qxd6 20. Ne2 Qe5 21. Nd4 Bd7 22. Bxd7 Nxd7 23. Qc7 Rfd8 24. Qxb7 Rab8 25. Qxa7 Ra8 26. Qb7 Rab8 27. Qc7 Qf6 28. b3 Ne5 29. Nc6 Nxc6 30. Qxc6 Qf5 31. Rc5 Rbc8 32. Qb5 Rb8 33. Qd3 Qxd3 1-0

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2019.11.29"]
[Round "2"]
[White "Weiland, Harro"]
[Black "Peper, Jeroen"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1762"]
[PlyCount "87"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 Nc6 4. Nf3 Bg4 5. Be3 Nf6 6. h3 Bh5 7. Nc3 e5 8. d5 Na5 9. g4 Bg6 10. Nd2 Bd6 11. f3 c6 12. Nxc4 Nxc4 13. Bxc4 0-0 14. Rc1 b5 15. Bb3 b4 16. Nb1 cxd5 17. Bxd5 Nxd5 18. Qxd5 Qe7 19. h4 h5 20. Bg5 Qd7 21. Rc6 hxg4 22. Rxd6 Qc7 23. Rc6 Qb7 24. 0-0 Kh7 25. h5 Bxh5 26. Rh6+ gxh6 27. Qxb7 hxg5 28. fxg4 Bg6 29. Nd2 Rad8 30. Nf3 Kh6 31. Qe7 f6 32. Nxe5 Rfe8 33. Nxg6 Rxe7 34. Nxe7 Re8 35. Nf5+ Kg6 36. Re1 Rd8 37. Kf2 Rd3 38. Re3 Rd1 39. Re2 a5 40. Rc2 Rd7 41. Ke3 Kf7 42. b3 Ke6 43. Nd4+ Ke5 44. Rc5+ 1-0

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2019.11.08"]
[Round "1"]
[White "Peper, Jeroen"]
[Black "Ada, Onur"]
[Result "1-0"]
[ECO "E11"]
[BlackElo "1566"]
[PlyCount "43"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 c6 5. a3 Qa5 6. Qc2 d5 7. e3 Nbd7 8. Bd3 Bd6 9. b4 Bxb4 10. 0-0 Bd6 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Qh5 14. a4 Nf6 15. Ba3 Bc7 16. Rab1 g5 17. Ne5 Ng4 18. h3 Nxe5 19. dxe5 Bxe5 20. Bxc6+ bxc6 21. Qe4 Bd7 22. Qxe5 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.05.24"]
[Round "8"]
[White "Arnold, Frieda"]
[Black "Peper, Jeroen"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1754"]
[PlyCount "57"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. f4 Bg7 4. Nf3 Nc6 5. a3 d6 6. Bc4 Nf6 7. d3 0-0 8. 0-0 a6 9. Qe1 Be6 10. e5 dxe5 11. fxe5 Ng4 12. Bxe6 fxe6 13. Ne4 Ncxe5 14. Neg5 Qd5 15. h3 Nh6 16. Qh4 Nxf3+ 17. gxf3 Rf6 18. Kg2 Qf5 19. Ne4 Nf7 20. Nxf6+ exf6 21. Bd2 Rf8 22. Rae1 Nd6 23. Qg4 e5 24. Qa4 Rd8 25. Qa5 Rd7 26. Qxc5 Qh5 27. Qd5+ Kf8 28. Qe6 Rd8 29. Bb4 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.04.26"]
[Round "7"]
[White "Peper, Jeroen"]
[Black "Eveleens, Ed"]
[Result "1-0"]
[ECO "A40"]
[BlackElo "1675"]
[PlyCount "93"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. h3 Nf6 6. e3 c6 7. Bd3 Nbd7 8. 0-0 0-0 9. Nbd2 d5 10. c4 e6 11. b4 Ne4 12. Qb3 Nxd2 13. Nxd2 Nf6 14. Nf3 Ne4 15. Rfd1 g5 16. Be5 g4 17. hxg4 fxg4 18. Bxe4 gxf3 19. Bxf3 Bxe5 20. dxe5 Qg5 21. e4 dxc4 22. Qc3 b5 23. Rd6 c5 24. a3 cxb4 25. axb4 a5 26. Rxa5 Rxa5 27. bxa5 b4 28. Qxc4 Qxe5 29. Qxb4 Qa1+ 30. Kh2 Qe5+ 31. Kg1 Qa1+ 32. Rd1 Qg7 33. Kf1 Ba6+ 34. Ke1 Rxf3 35. gxf3 Qg1+ 36. Kd2 Qxf2+ 37. Kc1 Qe3+ 38. Kb2 Qe2+ 39. Rd2 Qxf3 40. Qb8+ Kg7 41. Qa7+ Kg6 42. Qxa6 Qf6+ 43. Kb3 Qe5 44. Rd6 Qg3+ 45. Kc4 Qf2 46. Rxe6+ Kh5 47. Qb5+ 1-0

