[Event "GER-chT U20"]
[Site "Magdeburg"]
[Date "2023.12.30"]
[Round "7.2"]
[White "Klaas, Heiko"]
[Black "Martsfeld, Jonas"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1878"]
[BlackElo "1421"]
[PlyCount "67"]
[EventDate "2023.12.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 218 Extra"]
[Source "ChessBase"]
[SourceDate "2024.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.31"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Biberach"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Nd7 8. cxd4 Bb4+ 9. Nc3 Nb6 10. h3 0-0 11. Bd3 f6 12. 0-0 fxe5 13. dxe5 Bf5 14. Bg5 Be7 15. Bxe7 Nxe7 16. Nb5 Bxd3 17. Qxd3 Nf5 18. Nbd4 Nxd4 19. Nxd4 Qe8 20. f4 c6 21. Rae1 Nd7 22. b4 a5 23. a3 axb4 24. axb4 g6 25. Qb3 Qe7 26. g3 Nb6 27. f5 gxf5 28. Nxf5 Qe6 29. Qf3 Rf7 30. Nh6+ Qxh6 31. Qxf7+ Kh8 32. e6 Qxh3 33. Qf6+ Kg8 34. Qg5+ 1-0

[Event "GER-chT U20"]
[Site "Magdeburg"]
[Date "2023.12.29"]
[Round "5.2"]
[White "Klaas, Heiko"]
[Black "Buehring, Marwin"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "1878"]
[BlackElo "1427"]
[PlyCount "39"]
[EventDate "2023.12.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 218 Extra"]
[Source "ChessBase"]
[SourceDate "2024.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.31"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Plauen Koenig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Qc7 6. g3 a6 7. Bg2 Nf6 8. 0-0 Nxd4 9. Qxd4 Bc5 10. Bf4 d6 11. Qd2 h6 12. Rad1 e5 13. Be3 Bb4 14. Nb5 axb5 15. Qxb4 Rxa2 16. Rxd6 0-0 17. Rd2 Be6 18. Bc5 Qc6 19. Bxf8 Qc4 20. b3 1-0

[Event "GER-chT U20"]
[Site "Magdeburg"]
[Date "2023.12.29"]
[Round "6.2"]
[White "Liu, Jonas"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "1761"]
[BlackElo "1878"]
[PlyCount "56"]
[EventDate "2023.12.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 218 Extra"]
[Source "ChessBase"]
[SourceDate "2024.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.31"]
[SourceQuality "1"]
[WhiteTeam "Koenigsjaeger Sued West"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. Nf3 Nf6 3. g3 Bf5 4. Bg2 e6 5. c4 c6 6. Nc3 Be7 7. Qb3 Qb6 8. c5 Qxb3 9. axb3 Na6 10. Ne5 Nd7 11. Nxc6 Bf6 12. e4 bxc6 13. Rxa6 dxe4 14. Nxe4 Bxd4 15. Nd6+ Ke7 16. b4 Bd3 17. Ra3 Bg6 18. Nc4 Rhc8 19. 0-0 Nf6 20. Rd1 e5 21. Nd6 Rc7 22. Nb5 cxb5 23. Bxa8 Be4 24. Bxe4 Nxe4 25. Be3 Bxb2 26. Rb3 Bd4 27. Bxd4 exd4 28. Re1 Ke6 1-0

[Event "GER-chT U20"]
[Site "Magdeburg"]
[Date "2023.12.28"]
[Round "3.1"]
[White "Klaas, Heiko"]
[Black "Kvantaliani, Saba"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "1878"]
[BlackElo "1963"]
[PlyCount "43"]
[EventDate "2023.12.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 218 Extra"]
[Source "ChessBase"]
[SourceDate "2024.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.31"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Muenster 32"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 e5 4. Bc4 d6 5. d3 Nf6 6. Ng5 Bg4 7. Bxf7+ Kd7 8. f3 h6 9. fxg4 hxg5 10. Bxg5 Be7 11. Be3 Nd4 12. 0-0 Nxc2 13. Qxc2 Rxh2 14. Qa4+ Kc7 15. Be6 Qh8 16. Bg5 Rh1+ 17. Kf2 Rf8 18. Rxh1 Nxe4+ 19. Kg1 Nxc3 20. bxc3 Bxg5 21. Rxh8 Be3+ 22. Kh2 1-0

[Event "Arad op 16th"]
[Site "Arad"]
[Date "2023.08.07"]
[Round "1"]
[White "Klaas, Heiko"]
[Black "Parkhov, Yair"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1950"]
[BlackElo "2489"]
[PlyCount "74"]
[EventDate "2023.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Bc4 c6 4. Bb3 d5 5. exd5 cxd5 6. Nf3 Nf6 7. 0-0 0-0 8. Re1 Nc6 9. c3 Bg4 10. h3 Bxf3 11. Qxf3 Rc8 12. Nd2 b5 13. a3 a5 14. Qd3 Qb6 15. Nf3 e6 16. Bf4 Ne4 17. Rxe4 dxe4 18. Qxe4 b4 19. Rb1 Qb5 20. Bd6 Rfe8 21. Bc5 Bf8 22. c4 Qb7 23. Bxf8 Rxf8 24. d5 Ne7 25. Ne5 exd5 26. cxd5 Nf5 27. Nc6 Rfe8 28. Qd3 Qb6 29. axb4 axb4 30. Rd1 Rc7 31. Qc4 Nd6 32. Qf4 Re2 33. Rf1 Qc5 34. Bd1 Re4 35. Qg5 Rxc6 36. Qd8+ Re8 37. Qf6 Ra6 0-1

[Event "Paleochora op 16th"]
[Site "Paleochora"]
[Date "2023.07.19"]
[Round "1"]
[White "Klaas, Heiko"]
[Black "Stremavicius, Titas"]
[Result "0-1"]
[ECO "B56"]
[WhiteElo "1950"]
[BlackElo "2549"]
[PlyCount "84"]
[EventDate "2023.07.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f3 e5 7. Nb3 Be7 8. Be3 Be6 9. Qe2 0-0 10. 0-0-0 Na5 11. Qb5 Nxb3+ 12. axb3 Qc7 13. Kb1 Rfc8 14. Qd3 a6 15. g4 b5 16. g5 Nd7 17. h4 b4 18. Na4 Nc5 19. Nxc5 dxc5 20. Bh3 c4 21. bxc4 Bxc4 22. Qd2 Rd8 23. Qf2 b3 24. cxb3 Bd3+ 25. Rxd3 Rxd3 26. Rc1 Qd8 27. Bb6 Qe8 28. Bf1 Rxb3 29. Bc4 Rb4 30. Ba5 Rxc4 31. Rxc4 Qb5 32. Rc7 Bd6 33. Qb6 Qxb6 34. Bxb6 Bxc7 35. Bxc7 f6 36. Ba5 fxg5 37. hxg5 Rf8 38. Bc3 Rxf3 39. Bxe5 Re3 40. Kc2 Rxe4 41. Bc3 Rg4 42. Bd2 Kf7 0-1

[Event "Hamburg Easter op"]
[Site "Hamburg"]
[Date "2023.04.10"]
[Round "7"]
[White "Brinkmann, Fabian"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "A32"]
[WhiteElo "2187"]
[BlackElo "1965"]
[PlyCount "87"]
[EventDate "2023.04.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 c5 5. c4 Nc6 6. 0-0 cxd4 7. Nxd4 Bc5 8. Nb3 Bb6 9. cxd5 Nxd5 10. Bd2 0-0 11. Nc3 Nf6 12. Na4 Bc7 13. Rc1 Qe7 14. Qc2 Nd5 15. Rfd1 Bd6 16. Nac5 a5 17. Ne4 Ncb4 18. Qb1 Be5 19. Ng5 g6 20. e4 Nc7 21. f4 Bg7 22. Be3 Nba6 23. Nxa5 e5 24. f5 Nb5 25. Nc4 Bd7 26. Nb6 Rad8 27. Nd5 Qd6 28. Nf3 Bc6 29. Bg5 Bxd5 30. Bxd8 Qxd8 31. Rxd5 Qb6+ 32. Kh1 Nb4 33. Rd7 Nc6 34. Bf1 Nbd4 35. Nd2 Bh6 36. Nc4 Qb4 37. Rd1 Bg7 38. a3 Qb3 39. Qd3 Qa4 40. Nb6 Qa7 41. Nd5 Nb8 42. Rc7 Rd8 43. Qc4 Nbc6 44. Nf6+ 1-0

[Event "Hamburg Easter op"]
[Site "Hamburg"]
[Date "2023.04.08"]
[Round "3"]
[White "Klaas, Heiko"]
[Black "Keyser, Robin"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1965"]
[BlackElo "2144"]
[PlyCount "80"]
[EventDate "2023.04.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Nf3 0-0 6. 0-0 Nxe4 7. Nxe4 d5 8. Bd3 dxe4 9. Bxe4 Nd7 10. c3 c5 11. Be3 Nf6 12. Bc2 cxd4 13. Bxd4 b6 14. Re1 Bb7 15. Qe2 e6 16. Rad1 Qe7 17. Be5 Rfd8 18. Bb3 Qc5 19. Bxe6 Re8 20. Bh3 Nh5 21. b4 Qe7 22. Rd7 Bxf3 23. Qxf3 Qf8 24. g4 Bxe5 25. gxh5 Bxh2+ 26. Kf1 Rxe1+ 27. Kxe1 a5 28. hxg6 hxg6 29. Kf1 Rd8 30. Rb7 axb4 31. Be6 fxe6 32. Qh3 Qf6 33. Qxh2 bxc3 34. Qc7 Rd1+ 35. Kg2 Qg5+ 36. Kf3 Rd3+ 37. Ke2 Qd2+ 38. Kf1 Qd1+ 39. Kg2 Qg4+ 40. Kf1 Rd1# 0-1

[Event "Hamburg Easter op"]
[Site "Hamburg"]
[Date "2023.04.07"]
[Round "2"]
[White "Hovhannisyan, Artur"]
[Black "Klaas, Heiko"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2198"]
[BlackElo "1965"]
[PlyCount "110"]
[EventDate "2023.04.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 c5 5. Bb2 Nc6 6. cxd5 exd5 7. Bb5 Bg4 8. h3 Bh5 9. g4 Bg6 10. Ne5 Qc7 11. f4 Bd6 12. Nf3 h6 13. 0-0 0-0 14. Bxf6 gxf6 15. f5 Bh7 16. Bxc6 Qxc6 17. Nc3 d4 18. exd4 cxd4 19. Ne2 d3 20. Nc3 Rfe8 21. Kg2 b5 22. a3 a5 23. Qb1 Bf4 24. Rf2 Rad8 25. b4 Bxd2 26. Rxd2 Qxc3 27. Qb2 axb4 28. axb4 Qc6 29. Rc1 Qd6 30. Rcd1 Re3 31. Re1 Rde8 32. Rxe3 Rxe3 33. Qd4 Qe7 34. Rxd3 Rxd3 35. Qxd3 Qxb4 36. Nd4 h5 37. Kf3 hxg4+ 38. hxg4 Qd6 39. Qe3 b4 40. Ne2 Qd1 41. Kg3 Qe1+ 42. Kf3 b3 43. Qc3 Qf1+ 44. Ke3 Qh3+ 45. Kf4 Qh2+ 46. Kf3 Qb8 47. Qb2 Qb7+ 48. Kg3 Qe4 49. Nc1 Qe3+ 50. Kg2 Qf4 51. Kh3 Qf3+ 52. Kh4 Qf4 53. Kh3 Qf3+ 54. Kh4 Qf4 55. Kh3 Qf3+ 1/2-1/2

[Event "Bamberg op 4th"]
[Site "Bamberg"]
[Date "2022.07.27"]
[Round "1"]
[White "Reimann, Sebastian"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "2252"]
[BlackElo "1986"]
[PlyCount "63"]
[EventDate "2022.07.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. g3 Nf6 4. d3 Bc5 5. Bg2 d6 6. 0-0 0-0 7. c3 Bb6 8. a4 a5 9. Na3 Be6 10. d4 exd4 11. Nxd4 Nxd4 12. cxd4 d5 13. e5 Ne4 14. f3 Ng5 15. h4 Nh3+ 16. Kh2 Qd7 17. f4 h5 18. Nc2 Bg4 19. Qd3 g6 20. Ne3 c6 21. f5 gxf5 22. Bxh3 Bxh3 23. Kxh3 f4+ 24. Qf5 Qxf5+ 25. Nxf5 fxg3 26. Be3 f6 27. e6 Rfe8 28. e7 Bc7 29. Bf4 Bb6 30. Ra3 c5 31. Rxg3+ Kh8 32. Rg6 1-0

[Event "GER-chT U20"]
[Site "Kiel"]
[Date "2022.07.26"]
[Round "7.2"]
[White "Wang, Xinyuan1"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "D41"]
[WhiteElo "1875"]
[BlackElo "1986"]
[PlyCount "128"]
[EventDate "2022.07.22"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]
[WhiteTeam "Karlsruhe SF"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 0-0 11. Be2 b6 12. 0-0 Bb7 13. Qe3 Nd7 14. e5 Nb8 15. Bd3 Qd5 16. Rfe1 Na6 17. Qf4 h6 18. Be4 Qd7 19. Nd2 Bd5 20. Bxd5 exd5 21. Nf1 Rac8 22. Qd2 Nc7 23. Ne3 Nb5 24. Rac1 Rxc1 25. Rxc1 Rc8 26. Rxc8+ Qxc8 27. Nxd5 Qd8 28. Ne3 Qxd4 29. Qxd4 Nxd4 30. Kf1 Kf8 31. Ke1 Ke7 32. Kd2 Ke6 33. f4 g5 34. g3 gxf4 35. gxf4 Nf3+ 36. Ke2 Nxh2 37. Kf2 h5 38. Kg3 Ng4 39. Nc4 b5 40. Nd6 b4 41. Kh4 f6 42. Kxh5 fxe5 43. Nb5 Nf6+ 44. Kg5 Ne4+ 45. Kg4 a5 46. fxe5 Nc3 47. Nd4+ Kd5 48. Nb3 a4 49. Nc1 a3 50. Kf5 Nxa2 51. Nxa2 b3 52. Nb4+ Kc4 53. e6 b2 54. e7 b1Q+ 55. Kf6 Qe1 56. Nc2 Qf2+ 57. Kg7 Qg3+ 58. Kf7 Qf4+ 59. Kg7 Qe5+ 60. Kf7 Qf5+ 61. Kg7 Qe6 62. Nxa3+ Kb3 63. Nb5 Qxe7+ 64. Kh6 Qf6+ 0-1

[Event "GER-chT U20"]
[Site "Kiel"]
[Date "2022.07.25"]
[Round "6.1"]
[White "Klaas, Heiko"]
[Black "Sowka, Patrick"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1986"]
[BlackElo "1598"]
[PlyCount "61"]
[EventDate "2022.07.22"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Ergolding"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 a6 5. b3 e5 6. Qd2 Nf6 7. Bb2 Be6 8. 0-0-0 Nbd7 9. Kb1 b5 10. f3 Be7 11. g4 0-0 12. h4 b4 13. Nce2 a5 14. g5 Ne8 15. f4 f5 16. exf5 Bxf5 17. Ng3 Bg6 18. f5 Bf7 19. Bg2 Rc8 20. Nh3 Nc7 21. h5 Nb6 22. g6 Bd5 23. h6 Bh4 24. gxh7+ Kh8 25. hxg7+ Kxg7 26. Nh5+ Kxh7 27. Rdg1 Rxf5 28. Bxd5 Rxh5 29. Ng5+ Qxg5 30. Rxg5 Rxg5 31. Qxg5 1-0

[Event "GER-chT U20"]
[Site "Kiel"]
[Date "2022.07.24"]
[Round "3.3"]
[White "Klaas, Heiko"]
[Black "Niemann, Leon Pascal"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1986"]
[BlackElo "1741"]
[PlyCount "59"]
[EventDate "2022.07.22"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Lehrte"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 e6 4. d4 cxd4 5. Nxd4 Nf6 6. a3 d6 7. Bb5 Qc7 8. 0-0 a6 9. Bc4 Be7 10. Re1 b5 11. Be2 0-0 12. Nxc6 Qxc6 13. e5 Nd5 14. Bf3 Bb7 15. Nxd5 exd5 16. Bf4 Rfd8 17. e6 f6 18. c3 a5 19. Qd4 Qc5 20. Rad1 b4 21. c4 bxa3 22. Qxc5 dxc5 23. bxa3 g5 24. Bc7 Rdc8 25. Bg3 h5 26. h3 h4 27. Bh2 Ra6 28. cxd5 c4 29. d6 Bxf3 30. gxf3 1-0

[Event "GER-chT U20"]
[Site "Kiel"]
[Date "2022.07.24"]
[Round "4.1"]
[White "Sabirov, Rafael"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "1777"]
[BlackElo "1986"]
[PlyCount "78"]
[EventDate "2022.07.22"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]
[WhiteTeam "Porz SG"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 g6 7. 0-0 Bg7 8. Re1 0-0 9. h3 Re8 10. Nbd2 b5 11. Bc2 d5 12. exd5 Nxd5 13. Nb3 Bf5 14. d4 Bxc2 15. Qxc2 exd4 16. Rxe8+ Qxe8 17. cxd4 Ncb4 18. Qd1 Qe4 19. Bd2 Nd3 20. Rb1 Re8 21. Nc5 Nxc5 22. dxc5 Qc4 23. b4 Qxa2 24. Rb3 h6 25. Kf1 Kh7 26. Kg1 Re4 27. Be1 c6 28. Qd3 f5 29. Kf1 Nf4 30. Qd1 Rc4 31. h4 Rc2 32. Re3 Qc4+ 33. Kg1 Nd5 34. Re8 Rc1 35. Qd2 Rb1 36. Kh2 Bc3 37. Ng5+ hxg5 38. Qxg5 Rxe1 39. Ra8 Qf4+ 0-1

[Event "GER-chT U20"]
[Site "Kiel"]
[Date "2022.07.23"]
[Round "1.1"]
[White "Vuckovic, Robert"]
[Black "Klaas, Heiko"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "1845"]
[BlackElo "1986"]
[PlyCount "129"]
[EventDate "2022.07.22"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]
[WhiteTeam "Augsburg"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 Nf6 6. e5 d5 7. Be2 Ne4 8. cxd4 Bb6 9. h3 0-0 10. 0-0 f6 11. Nc3 fxe5 12. Nxe4 dxe4 13. Bc4+ Kh8 14. Ng5 Qe8 15. dxe5 h6 16. Nxe4 Qxe5 17. Qd5 Bf5 18. Nc3 Rad8 19. Qxe5 Nxe5 20. Be2 Nd3 21. Bf3 Bxh3 22. Bxb7 Bxf2+ 23. Rxf2 Rxf2 24. gxh3 Rc2 25. Be3 Nxb2 26. Ne4 Rb8 27. Bd5 c6 28. Bb3 Re2 29. Bd4 Rxe4 30. Bxb2 c5 31. Rc1 c4 32. Bc2 Re2 33. Bd4 Rd8 34. Bxa7 Ra8 35. Bd4 Rxa2 36. Bf5 c3 37. Bb1 Rg2+ 38. Kf1 Rad2 39. Rxc3 Kg8 40. Be3 Rb2 41. Be4 Rg3 42. Bd5+ Kh7 43. Be4+ Kg8 44. h4 Rg4 45. Rc4 h5 46. Bg5 Rb8 47. Bd5+ Kh8 48. Rxg4 hxg4 49. Kf2 Rb4 50. Be6 Rb5 51. Kg3 Kh7 52. Kxg4 Rb4+ 53. Kf5 Rb5+ 54. Kg4 Rb4+ 55. Bf4 Kg6 56. Bf5+ Kf6 57. h5 Ra4 58. Bg6 Rb4 59. Kf3 Rb3+ 60. Ke2 Ra3 61. Bc1 Rh3 62. Be3 Ke5 63. Bc1 Kf6 64. Kf2 Rh1 65. Bb2+ 1/2-1/2

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2022.06.19"]
[Round "5.5"]
[White "Kuhle, Sebastian"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2039"]
[BlackElo "2043"]
[PlyCount "67"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Weisse Dame"]
[BlackTeam "Hamburger SK VI"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. Nf3 d5 3. g3 d4 4. d3 c5 5. Bg2 Nc6 6. 0-0 Nf6 7. e3 Be7 8. exd4 cxd4 9. a3 a5 10. b3 0-0 11. Bb2 e5 12. Re1 Bd6 13. Nbd2 Bg4 14. Qc2 Qd7 15. Ne4 Nxe4 16. Rxe4 f5 17. Ree1 Rae8 18. c5 Bc7 19. Nd2 Kh8 20. b4 axb4 21. axb4 Nxb4 22. Qb3 Nc6 23. Qxb7 e4 24. Ra6 Ne5 25. c6 Qf7 26. Ba3 Rb8 27. Bxf8 Rxb7 28. cxb7 Qxf8 29. Rc1 e3 30. Ra8 Nd7 31. Rxf8+ Nxf8 32. Nf3 e2 33. Nxd4 h6 34. Nxe2 1-0

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2022.05.15"]
[Round "4.5"]
[White "Klaas, Heiko"]
[Black "Schneider, Alexander"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2043"]
[BlackElo "2090"]
[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 "Hamburger SK VI"]
[BlackTeam "Fischbek"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 e5 4. Bc4 Be7 5. d3 Nf6 6. Nd2 Na5 7. Bd5 Nxd5 8. Nxd5 Nc6 9. c3 d6 10. Nc4 f5 11. f4 b5 12. Nce3 fxe4 13. dxe4 exf4 14. Nxf4 0-0 15. Qd5+ Kh8 16. Nf5 Bxf5 17. exf5 Bh4+ 18. g3 Ne7 19. Qd3 Nxf5 20. gxh4 Qxh4+ 21. Kd1 c4 22. Qh3 Qf6 23. Rg1 Rae8 24. Ng6+ Kg8 25. Nxf8 Qe5 26. Bd2 Rxf8 27. Re1 Qd5 28. Kc2 b4 29. Rad1 b3+ 30. Kb1 bxa2+ 31. Ka1 Qb5 32. Bf4 Rb8 33. Qg2 1-0

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2022.05.08"]
[Round "9.5"]
[White "Diekmann, Jens"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2061"]
[BlackElo "2043"]
[PlyCount "100"]
[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 "Marmstorf"]
[BlackTeam "Hamburger SK VI"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. Nf3 d5 3. b3 d4 4. g3 c5 5. Bg2 Nc6 6. 0-0 g6 7. d3 Bg7 8. Na3 Nge7 9. Nc2 a5 10. Bd2 0-0 11. a3 b6 12. Qc1 Bb7 13. Bh6 Qc7 14. Bxg7 Kxg7 15. Qb2 Ne5 16. Nxe5 Bxg2 17. Kxg2 Qxe5 18. e3 Nc6 19. exd4 Nxd4 20. Rfe1 Qf6 21. Nxd4 Qxd4 22. Qxd4+ cxd4 23. b4 axb4 24. axb4 Kf6 25. f4 Ke7 26. Kf3 f5 27. Ke2 Kd6 28. Kd2 h6 29. Kc2 g5 30. Kb3 Rg8 31. Rxa8 Rxa8 32. c5+ bxc5 33. bxc5+ Kxc5 34. Rxe6 Rb8+ 35. Kc2 gxf4 36. gxf4 Rg8 37. Re5+ Kb4 38. Re2 Rg1 39. Rf2 h5 40. h3 h4 41. Kd2 Ra1 42. Rf3 Ra2+ 43. Ke1 Kc3 44. Kd1 Rd2+ 45. Kc1 Rxd3 46. Rf2 Rxh3 47. Rc2+ Kd3 48. Rd2+ Ke4 49. Kc2 Rc3+ 50. Kd1 Rd3 0-1

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2022.05.07"]
[Round "7.4"]
[White "Klaas, Heiko"]
[Black "Easwaralingam, Adesh"]
[Result "1/2-1/2"]
[ECO "B47"]
[WhiteElo "2043"]
[BlackElo "2081"]
[PlyCount "96"]
[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 "Hamburger SK VI"]
[BlackTeam "Harburg Diagonale"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 e6 4. d4 cxd4 5. Nxd4 Qc7 6. g3 a6 7. Bg2 Nf6 8. 0-0 Nxd4 9. Qxd4 Bc5 10. Qd3 Ng4 11. Bf4 Ne5 12. Na4 Ba7 13. Qc3 Qxc3 14. Nxc3 f6 15. a4 g5 16. Bc1 h5 17. b3 h4 18. Ne2 hxg3 19. hxg3 Rb8 20. c4 Bc5 21. Ba3 Bxa3 22. Rxa3 b5 23. axb5 axb5 24. f4 gxf4 25. gxf4 Nd3 26. Rd1 bxc4 27. bxc4 Nc5 28. e5 fxe5 29. fxe5 Rb2 30. Kf2 Ke7 31. Ke3 Rh5 32. Nf4 Rxe5+ 33. Kd4 Rf5 34. Bh3 Rxf4+ 35. Kxc5 Rh4 36. Rg3 Rc2 37. Bf1 Rh5+ 38. Kb4 Rb2+ 39. Kc3 Rf2 40. Bg2 Rh7 41. Ra1 Rh2 42. Be4 Rh4 43. Bf3 Rf4 44. Bg2 Rf8 45. Ra7 Kd6 46. Rd3+ Ke5 47. Ra5+ d5 48. cxd5 Rxg2 1/2-1/2

[Event "Krakow op-B 32nd"]
[Site "Krakow"]
[Date "2021.12.31"]
[Round "5"]
[White "Kukorowski, Jan"]
[Black "Klaas, Heiko"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "1803"]
[BlackElo "2078"]
[PlyCount "156"]
[EventDate "2021.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 c5 5. Bb2 Nc6 6. cxd5 exd5 7. Be2 Bd6 8. Nc3 0-0 9. d4 cxd4 10. Nxd4 Be5 11. Nf3 Bc7 12. 0-0 Ne7 13. Nb5 Bb8 14. Bxf6 gxf6 15. Nbd4 Kh8 16. Nh4 Rg8 17. Bd3 Qf8 18. f4 Qg7 19. Qd2 Qg4 20. Qf2 Bc7 21. Nb5 Bb8 22. Rac1 Nc6 23. Rfd1 a6 24. Be2 Qe6 25. Nd4 Nxd4 26. Rxd4 Bd7 27. f5 Qe5 28. Nf3 Qd6 29. Rcd1 Bc6 30. Rh4 Ba7 31. Nd4 Rg7 32. Bf3 Rag8 33. Kh1 Bb8 34. Nxc6 bxc6 35. e4 Qe5 36. exd5 cxd5 37. Rxd5 Qa1+ 38. Rd1 Qe5 39. Qc2 Rg5 40. Rh3 R5g7 41. Qc4 Qb2 42. Qd4 Qxd4 43. Rxd4 Re8 44. g4 Ba7 45. Rd1 Rgg8 46. Kg2 Rc8 47. Rd2 Rge8 48. Bd1 Re1 49. Rhd3 Kg7 50. Rd7 Rg1+ 51. Kf3 Bb8 52. Rb7 Rh1 53. Rdd7 Rf8 54. b4 Rxh2 55. Bb3 Rh3+ 56. Ke2 Be5 57. Bxf7 Kh6 58. Be6 Kg5 59. Rxh7 Rg3 60. Rbg7+ Kf4 61. Rh1 Rb8 62. Bd5 Bd4 63. Rf1+ Ke5 64. Bf3 Kd6 65. a3 Re8+ 66. Kd3 Bb6 67. Kc2 Rc8+ 68. Kb1 Rc3 69. Rd1+ Ke5 70. Re7+ Kf4 71. Bd5 Rxa3 72. Re4+ Kg5 73. Rh1 Rxg4 74. Rxg4+ Kxg4 75. Kb2 Re3 76. Be6 Bd4+ 77. Kc2 Kf4 78. Rd1 Ke5 1/2-1/2

[Event "Krakow op-B 32nd"]
[Site "Krakow"]
[Date "2021.12.30"]
[Round "4"]
[White "Klaas, Heiko"]
[Black "Maj, Samuel"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2078"]
[BlackElo "1930"]
[PlyCount "70"]
[EventDate "2021.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd2 g6 6. b3 Bh6 7. f4 Nf6 8. Bb2 0-0 9. 0-0-0 e5 10. g3 Re8 11. Bg2 Bg4 12. Re1 Nd4 13. h3 Bd7 14. Kb1 b5 15. Nce2 Nxe2 16. Nxe2 Bc6 17. Qd3 Qe7 18. Rhf1 a5 19. f5 a4 20. fxg6 hxg6 21. Bc1 Bxc1 22. Nxc1 axb3 23. cxb3 Red8 24. Re2 d5 25. exd5 Bxd5 26. Bxd5 Nxd5 27. Ree1 b4 28. Ka1 Nc3 29. Qe3 e4 30. Rf2 Nd1 31. Qf4 Nxf2 32. Qxf2 Qe5+ 33. Kb1 Qc3 34. Re2 Rac8 35. Qf4 Rd1 0-1

[Event "Krakow op-B 32nd"]
[Site "Krakow"]
[Date "2021.12.29"]
[Round "3"]
[White "Kejna, Piotr"]
[Black "Klaas, Heiko"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "1958"]
[BlackElo "2078"]
[PlyCount "86"]
[EventDate "2021.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Bxf7+ Kxf7 10. Qb3+ Ke8 11. Qxb4 Qe7 12. Qxe7+ Kxe7 13. Nc3 Nxc3 14. bxc3 d6 15. Kd2 Be6 16. Ne1 Rhf8 17. f3 Rae8 18. Nc2 c5 19. Rhe1 Kd7 20. Rab1 b6 21. Rb2 g5 22. h3 h5 23. Ne3 Kc6 24. a4 Bg8 25. a5 Rb8 26. Reb1 b5 27. a6 Rb6 28. Ra1 Rf4 29. Nc2 g4 30. hxg4 hxg4 31. Ke3 Rf6 32. fxg4 Bd5 33. g5 Rf5 34. Ne1 Rb8 35. Nf3 Re8+ 36. Kf2 Bxf3 37. gxf3 Ref8 38. dxc5 dxc5 39. Rh1 Rxf3+ 40. Kg2 R3f5 41. Rh6+ Kd5 42. Rxb5 Rxg5+ 43. Kh2 Rf2+ 1/2-1/2

[Event "Krakow op-B 32nd"]
[Site "Krakow"]
[Date "2021.12.28"]
[Round "2"]
[White "Klaas, Heiko"]
[Black "Slabek, Grzegorz"]
[Result "1/2-1/2"]
[ECO "B05"]
[WhiteElo "2078"]
[BlackElo "1961"]
[PlyCount "128"]
[EventDate "2021.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nc3 Be7 7. Nf3 Bg4 8. Be2 0-0 9. 0-0 N8d7 10. Qd3 Bh5 11. Bf4 Nf6 12. Rfe1 Re8 13. b3 Bg6 14. Qd2 Ne4 15. Nxe4 Bxe4 16. Ng5 Bg6 17. Bf3 c6 18. d5 h6 19. Ne4 cxd5 20. cxd5 Qd7 21. Rac1 Bf8 22. Qd4 Rac8 23. Rxc8 Qxc8 24. h3 Qd8 25. Re3 Be7 26. Nxd6 Bf6 27. Rxe8+ Qxe8 28. Nxe8 Bxd4 29. Nd6 Bb1 30. Nb5 Bf6 31. Nxa7 Bxa2 32. d6 Bxb3 33. Bxb7 Ba4 34. Bc6 Bxc6 35. Nxc6 Nd7 36. Kf1 Kf8 37. Ke2 Ke8 38. Kd3 g5 39. Bg3 Nb6 40. Ne5 Bxe5 41. Bxe5 Kd7 42. g4 Ke6 43. Ke4 f6 44. Ba1 Nd7 45. Bd4 Nf8 46. Bb6 Nd7 47. Ba7 Ne5 48. Bb8 Nd7 49. Ba7 Ne5 50. f4 gxf4 51. Kxf4 Nd3+ 52. Ke4 Ne5 53. Bc5 Nd7 54. Be3 Kxd6 55. Kf5 Ke7 56. Kg6 Ne5+ 57. Kg7 Nf3 58. Kxh6 Kf7 59. Kh7 Nh4 60. Kh6 Nf3 61. Kh5 Kg7 62. Bc5 Ng5 63. Kh4 Kg6 64. Bb6 f5 1/2-1/2

[Event "Krakow op-B 32nd"]
[Site "Krakow"]
[Date "2021.12.27"]
[Round "1"]
[White "Mikula, Michal"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "C62"]
[WhiteElo "1908"]
[BlackElo "2078"]
[PlyCount "86"]
[EventDate "2021.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 exd4 6. Qxd4 Bd7 7. Bxc6 Bxc6 8. 0-0 Be7 9. e5 dxe5 10. Qxd8+ Rxd8 11. Nxe5 Bd7 12. Nxd7 Rxd7 13. Bf4 0-0 14. Rad1 Rfd8 15. h3 c6 16. Rfe1 Bb4 17. Bg5 Rxd1 18. Rxd1 Rxd1+ 19. Nxd1 Nd5 20. c4 Nc7 21. Kf1 f6 22. Be3 a6 23. Ke2 Kf7 24. b3 h5 25. Nb2 Ne6 26. Nd3 Bd6 27. f3 g5 28. g4 Kg6 29. Kf2 f5 30. Ke2 c5 31. Ne1 Nf4+ 32. Bxf4 Bxf4 33. Ng2 hxg4 34. Nxf4+ gxf4 35. fxg4 fxg4 36. hxg4 Kg5 37. Kf3 b6 38. a3 b5 39. cxb5 axb5 40. a4 c4 41. bxc4 bxc4 42. Ke4 c3 43. Kd3 f3 0-1

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2021.12.12"]
[Round "3.5"]
[White "Klaas, Heiko"]
[Black "Dunkelmann, Swen"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2043"]
[PlyCount "98"]
[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 "Hamburger SK VI"]
[BlackTeam "Hamburger SK V"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 a6 5. b3 Nc6 6. Qd2 g6 7. Bb2 Bg7 8. 0-0-0 Bg4 9. Be2 h5 10. Kb1 Bh6 11. f4 Nf6 12. h3 Be6 13. Nf3 b5 14. Ng5 b4 15. Nd5 Bxg5 16. fxg5 Nxe4 17. Qe3 Bxd5 18. Rxd5 Nc3+ 19. Bxc3 bxc3 20. Qxc3 Ne5 21. g4 h4 22. Rf1 e6 23. Rxe5 dxe5 24. Qc6+ Kf8 25. Qxe6 Qe7 26. Qxg6 Rd8 27. Rf5 Rd6 28. Rxf7+ Qxf7 29. Qxd6+ Qe7 30. Qxa6 Qxg5 31. Qc8+ Kg7 32. Qd7+ Kh6 33. Bd3 Qf6 34. a4 Rd8 35. Qh7+ Kg5 36. a5 Rd4 37. Qg8+ Kf4 38. Qb8 Ke3 39. Bf5 e4 40. Ka2 Qc6 41. c4 Rd2+ 42. Kb1 Kd3 43. Qb6 Qe8 44. Qd6+ Kc3 45. Qf6+ Kxb3 46. Qb6+ Kc3 47. Qf6+ Rd4 48. Qb6 Rd1+ 49. Ka2 Qa4# 0-1

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2021.11.21"]
[Round "2.6"]
[White "Klaas, Heiko"]
[Black "Atri, Jamshid"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2043"]
[BlackElo "1984"]
[PlyCount "98"]
[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 "Hamburger SK VI"]
[BlackTeam "Hamburger SK IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. 0-0-0+ Nbd7 8. Nf3 Kc8 9. a3 a6 10. Bh4 h6 11. Nd2 b5 12. f3 c6 13. Bf2 Kc7 14. g3 g5 15. h4 Be7 16. Bg2 Nh5 17. hxg5 hxg5 18. Nf1 a5 19. a4 b4 20. Ne2 b3 21. Ne3 bxc2 22. Nxc2 Nc5 23. Nc3 Nf6 24. Be3 Rxh1 25. Bxh1 Nfd7 26. f4 gxf4 27. gxf4 f6 28. Bf3 Rh8 29. Rh1 Rxh1+ 30. Bxh1 Nd3+ 31. Kb1 Nxf4 32. Bxf4 exf4 33. Nd4 Bg4 34. Kc2 Ne5 35. Bg2 Bc5 36. Nb3 Bb6 37. Bf1 Kd6 38. Nc1 f3 39. b3 Bd4 40. Nd3 Nxd3 41. Kxd3 Bxc3 42. Kxc3 Kc5 43. Kd2 Kd4 44. b4 axb4 45. a5 c5 46. a6 Bc8 47. a7 Bb7 48. Ba6 Bxe4 49. Bd3 Ba8 0-1

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2021.10.31"]
[Round "1.5"]
[White "Klaas, Heiko"]
[Black "Moehrmann, Marcus"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "2043"]
[BlackElo "2038"]
[PlyCount "57"]
[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 "Hamburger SK VI"]
[BlackTeam "Hamburg Koenigsspringer II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be7 10. Bg5 Bg4 11. Bxe7 Bxf3 12. gxf3 Nxe7 13. Ng3 Qc5 14. Qe2 Kf8 15. Rad1 h5 16. c3 h4 17. Ne4 Qf5 18. cxd4 Nd5 19. Qb5 Rh6 20. Qxb7 Rd8 21. Qb3 Kg8 22. Kh1 Rb6 23. Qa3 Rxb2 24. Rg1 Rxa2 25. Qb3 Rb2 26. Qa3 Re2 27. Rg5 Qe6 28. Re5 Qh3 29. Ng5 1-0

[Event "GER-chT U16"]
[Site "Magdeburg"]
[Date "2019.12.29"]
[Round "6.2"]
[White "Klaas, Heiko"]
[Black "Gluma, Christian"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1759"]
[BlackElo "1856"]
[PlyCount "130"]
[EventDate "2019.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Bochum SG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 g6 2. d4 Bg7 3. Bc4 c6 4. Nf3 d5 5. exd5 cxd5 6. Be2 Nc6 7. 0-0 Nf6 8. Nc3 0-0 9. Bf4 Bf5 10. Ne5 Nd7 11. Nxc6 bxc6 12. Bd3 Bxd3 13. Qxd3 Qb6 14. Ne2 e5 15. dxe5 Nxe5 16. Qg3 Rfe8 17. Rab1 Nc4 18. Nc3 Re6 19. Na4 Qb5 20. b3 Na3 21. Rbc1 Rae8 22. Bd6 Nxc2 23. h3 Nd4 24. Nc3 Qa5 25. Bc7 Qxc3 26. Rxc3 Ne2+ 27. Kh2 Nxg3 28. Rxg3 Re2 29. a4 Rc2 30. f4 Re4 31. f5 c5 32. f6 Bh6 33. Bd6 d4 34. Rg4 Rxg4 35. hxg4 Be3 36. Rd1 h6 37. Be5 Rd2 38. Rxd2 Bxd2 39. Kg1 Bb4 40. Kf2 Kf8 41. Ke2 Ke8 42. Bd6 Kd7 43. Bf8 h5 44. gxh5 gxh5 45. Be7 Ke6 46. Kd3 Kf5 47. Bd8 a5 48. Bc7 Kxf6 49. Ke4 Ke6 50. Bg3 f5+ 51. Kd3 Kf6 52. Bf4 h4 53. Ke2 Kg6 54. Kd3 Kh5 55. Bb8 Kg4 56. Bc7 h3 57. gxh3+ Kxh3 58. Be5 Kg4 59. Bh2 f4 60. Ke4 Bd2 61. Kd3 Be3 62. Ke4 f3 63. Kd3 f2 64. Ke2 Kh3 65. Bc7 Kg2 0-1

[Event "GER-chT U16"]
[Site "Magdeburg"]
[Date "2019.12.28"]
[Round "4.3"]
[White "Klaas, Heiko"]
[Black "Kravtsov, Maksim"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "1759"]
[BlackElo "1784"]
[PlyCount "62"]
[EventDate "2019.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Karlsruhe SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. dxc5 Bxc5 6. Ngf3 Nf6 7. Bc4 Qh5 8. 0-0 Bd7 9. Nb3 Bc6 10. Nxc5 Qxc5 11. b3 Nbd7 12. Nd4 Nb6 13. Nxc6 Qxc6 14. Bd3 0-0-0 15. Bb2 Nbd5 16. Qf3 Nb4 17. Be2 Qxf3 18. Bxf3 Kb8 19. c4 Nd3 20. Bc3 e5 21. g3 Rhe8 22. Rad1 e4 23. Bg2 h5 24. Rd2 Ng4 25. Bxg7 f5 26. h3 e3 27. fxe3 Nxe3 28. Rb1 Rg8 29. Bf6 Rd7 30. Kh2 Rg6 31. Bc3 h4 1/2-1/2

[Event "GER-chT U16"]
[Site "Magdeburg"]
[Date "2019.12.28"]
[Round "3.1"]
[White "Klaas, Heiko"]
[Black "Seidel, Arne Christian"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1759"]
[BlackElo "1636"]
[PlyCount "119"]
[EventDate "2019.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Halle Reideburger"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 0-0 7. 0-0 c6 8. Bb3 exd4 9. Qxd4 Nc5 10. Ba2 Ng4 11. Re1 Bf6 12. e5 Nxe5 13. Nxe5 Bxe5 14. Rxe5 dxe5 15. Qxc5 Qd4 16. Be3 Qxc5 17. Bxc5 Rd8 18. Re1 b6 19. Be3 Bf5 20. Bb3 Kf8 21. f3 f6 22. Kf2 Bg6 23. a5 Rab8 24. axb6 axb6 25. Ra1 Rd7 26. Ra6 c5 27. Ba4 Rdb7 28. Bc6 Re7 29. Be4 f5 30. Bd3 f4 31. Bd2 Bxd3 32. cxd3 Rd7 33. Ke2 g5 34. Na4 Rdb7 35. Bc3 Kf7 36. Kd2 Kf6 37. Nxc5 Rc7 38. Ne4+ Kf5 39. h3 Rd7 40. Ba5 Kg6 41. Bxb6 Kg7 42. b4 h6 43. Bc5 Rbd8 44. Ra3 Rb8 45. Kc3 Rbd8 46. Kc4 Rc8 47. Kb5 Rb7+ 48. Bb6 Rcb8 49. Ra6 Rd7 50. Nc5 Rd6 51. Ka5 Rc8 52. Bc7 Rd5 53. Kb6 Re8 54. Kc6 Rd4 55. b5 e4 56. dxe4 Rc4 57. b6 Re7 58. Kd5 Rb4 59. Ra8 Rb5 60. Kc6 1-0

[Event "GER-chT U16"]
[Site "Magdeburg"]
[Date "2019.12.27"]
[Round "1.3"]
[White "Klaas, Heiko"]
[Black "Seinsoth, Paul"]
[Result "1-0"]
[ECO "B28"]
[WhiteElo "1759"]
[BlackElo "1629"]
[PlyCount "77"]
[EventDate "2019.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Erfurt SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 a6 3. Nf3 b5 4. d4 cxd4 5. Nxd4 Bb7 6. Be3 d6 7. Qd2 Nc6 8. f3 Qc7 9. Nd5 Qd8 10. Nxc6 Bxc6 11. Bb6 Qb8 12. Nc7+ Kd7 13. Nxa8 Bxa8 14. Be3 e6 15. 0-0-0 Be7 16. Qa5 Qc8 17. Bf4 d5 18. Bd3 Nf6 19. Rhe1 Rd8 20. g4 h6 21. e5 Ne8 22. Be3 Nc7 23. f4 Ke8 24. f5 d4 25. f6 gxf6 26. exf6 Bf8 27. Bf2 Bf3 28. Be2 Bxe2 29. Rxe2 Nd5 30. Rxd4 Bc5 31. Rde4 Nxf6 32. Bxc5 Qxc5 33. Rf4 Qg5 34. Rd2 Nd5 35. Rfd4 Qe3 36. Qxa6 b4 37. Qc6+ Kf8 38. Qc5+ Kg8 39. Rxd5 1-0

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.30"]
[Round "7.4"]
[White "Klaas, Heiko"]
[Black "Borodaev, Roman"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "1718"]
[BlackElo "1330"]
[PlyCount "60"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.28"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Karlsruhe SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 e6 8. Be2 Nxd4 9. Bxd4 d6 10. f4 0-0 11. 0-0 Re8 12. e5 dxe5 13. Bxe5 Qb6+ 14. Kh1 Rd8 15. Qc2 Bd7 16. a3 a5 17. Bf3 Rac8 18. Na4 Qa6 19. Rac1 b5 20. c5 bxa4 21. c6 Nd5 22. c7 Re8 23. Qc5 Bxe5 24. Bxd5 Rxc7 25. Bc4 Rxc5 26. Bxa6 Rxc1 27. Rxc1 Bxb2 28. Rd1 Bc6 29. Rd6 Bd5 30. Bb5 Rc8 0-1

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.29"]
[Round "5.4"]
[White "Klaas, Heiko"]
[Black "Heutling, Elina"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1718"]
[BlackElo "1742"]
[PlyCount "109"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.28"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Magdeburg Schachzwerge"]
[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. Nc3 0-0 10. 0-0 Bg4 11. Bxc6 bxc6 12. Be3 f6 13. Nxe4 dxe4 14. Qb3+ Kh8 15. Nd2 Bxd4 16. exf6 Qxf6 17. Nxe4 Qe5 18. Bxd4 Qxd4 19. Ng5 Qf6 20. Ne4 Qe5 21. Qc2 Bf5 22. Rfe1 Rab8 23. b3 Rb4 24. f3 Bxe4 25. fxe4 Qd4+ 26. Kh1 Qe5 27. Rad1 h6 28. Qxc6 Rf4 29. Qg6 Rd4 30. Rxd4 Qxd4 31. e5 Qf2 32. Qb1 Rg4 33. Rg1 Qe2 34. Qf5 Re4 35. Qc8+ Kh7 36. Qxc7 Qxa2 37. Qd7 Rxe5 38. Qd3+ Kg8 39. Rc1 Qe2 40. Qd4 Rf5 41. Qxa7 Rf2 42. h3 Kh7 43. Qb7 Qe3 44. Rb1 Qd3 45. Re1 Rb2 46. b4 Qd2 47. Qe4+ Kh8 48. Ra1 Ra2 49. Rxa2 Qxa2 50. b5 Qa1+ 51. Kh2 Qf6 52. Qa8+ Kh7 53. Qb8 h5 54. b6 h4 55. Qc7 1-0

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.28"]
[Round "3.4"]
[White "Klaas, Heiko"]
[Black "Afonso, Phil"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1718"]
[BlackElo "1595"]
[PlyCount "49"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.28"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Kornwestheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Qe7 7. 0-0 Ng4 8. cxd4 Bb6 9. h3 Nh6 10. d5 Nd8 11. d6 cxd6 12. Bg5 Qf8 13. exd6 Ne6 14. Re1 Bd8 15. Bf4 Bf6 16. Qa4 Kd8 17. Bxe6 fxe6 18. Nc3 Bxc3 19. bxc3 Nf7 20. Rad1 b6 21. Qc4 h6 22. Qc7+ Ke8 23. Rxe6+ dxe6 24. d7+ Ke7 25. d8Q# 1-0

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.28"]
[Round "4.3"]
[White "Klaas, Heiko"]
[Black "Peukert, Marc"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "1718"]
[BlackElo "1510"]
[PlyCount "75"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.28"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Dresden TU"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 a6 9. 0-0-0 Qc7 10. g4 b5 11. h4 d6 12. h5 Bd7 13. hxg6 fxg6 14. Nxc6 Bxc6 15. Bh6 Rf7 16. Bxg7 Rxg7 17. g5 Nd7 18. Bh3 Rd8 19. Nd5 Bxd5 20. Qxd5+ Kh8 21. f4 Rc8 22. Rd2 Nb6 23. Qd4 e5 24. Qxd6 Qxd6 25. Rxd6 Nc4 26. Rxa6 Rb8 27. f5 gxf5 28. Bxf5 Ne3 29. Rah6 Rbb7 30. g6 Rbc7 31. Rxh7+ Rxh7 32. Rxh7+ Rxh7 33. gxh7 Nxf5 34. exf5 Kxh7 35. Kd2 Kh6 36. Ke3 Kg5 37. Ke4 Kf6 38. a3 1-0

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.27"]
[Round "1.3"]
[White "Wagner, Margarethe"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "1693"]
[BlackElo "1718"]
[PlyCount "110"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.28"]
[SourceQuality "1"]
[WhiteTeam "Erfurt SK"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. c3 d6 8. h3 0-0 9. Be3 Na5 10. Bc2 c5 11. Nbd2 Qc7 12. a4 Bb7 13. 0-0 Rfd8 14. Qe2 h6 15. Rfc1 d5 16. exd5 Nxd5 17. c4 Nxe3 18. Qxe3 bxc4 19. dxc4 Nc6 20. Qe4 g6 21. Qe3 Kg7 22. Nb3 Nd4 23. Nbxd4 exd4 24. Qe5+ Qxe5 25. Nxe5 Bg5 26. Re1 Rd6 27. Nd3 Rc8 28. Re5 Rb6 29. a5 Re6 30. Rxc5 Rce8 31. Ba4 R8e7 32. b4 Be4 33. Nb2 Bd2 34. b5 Bb4 35. Rc8 Bxa5 36. bxa6 Rxa6 37. Bb5 Raa7 38. Bc6 Bxc6 39. Rxc6 Bc3 40. Rxa7 Rxa7 41. Nd3 Ra1+ 42. Kh2 Rd1 43. Ne5 d3 44. Nf3 Bb4 45. Rc8 Be7 46. g3 d2 47. Nxd2 Rxd2 48. Kg2 Bf6 49. Kf1 Bd4 50. f4 Rf2+ 51. Ke1 Rf3 52. Re8 Bg1 53. Rc8 Rxg3 54. c5 Rxh3 55. c6 Rc3 0-1

[Event "GER-ch U14"]
[Site "Willingen"]
[Date "2018.05.26"]
[Round "9"]
[White "Hetzner, Hannes"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1880"]
[BlackElo "1897"]
[PlyCount "61"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 Nge7 7. Bg5 d6 8. Qd2 h6 9. Be3 Bxe3 10. Qxe3 Ng6 11. 0-0-0 0-0 12. Kb1 a6 13. Be2 b5 14. g4 b4 15. Nd5 a5 16. h4 Nce7 17. g5 Nxd5 18. Rxd5 c6 19. Rdd1 a4 20. Nd4 Ne5 21. gxh6 g6 22. f4 Ng4 23. Qg3 c5 24. Nb5 Nf6 25. Nxd6 Qb6 26. h5 Kh7 27. Qg5 Ng8 28. Rhg1 Ra7 29. hxg6+ fxg6 30. Qxg6+ Kh8 31. Nf7+ 1-0

[Event "GER-ch U14"]
[Site "Willingen"]
[Date "2018.05.25"]
[Round "8"]
[White "Klaas, Heiko"]
[Black "Bornholdt, Joa Max"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "1897"]
[BlackElo "1731"]
[PlyCount "93"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Bg5 a6 5. Qd2 Nc6 6. Nge2 Bd7 7. g3 h6 8. Be3 Nf6 9. f4 b5 10. e5 Ng4 11. a4 Nxe3 12. Qxe3 Nb4 13. Qd2 Bf5 14. Rc1 dxe5 15. fxe5 bxa4 16. Nxa4 a5 17. Nc5 Qd5 18. Rg1 Qa2 19. c3 Nd5 20. Bg2 Rb8 21. b3 Qxd2+ 22. Kxd2 c6 23. Ra1 h5 24. Rxa5 Bh6+ 25. Nf4 Nxf4 26. Bxc6+ Kd8 27. gxf4 Bxf4+ 28. Ke2 Bxh2 29. Rga1 Rc8 30. Bb7 Kc7 31. Bxc8 Rxc8 32. Ra7+ Kd8 33. Ra8 h4 34. b4 Bg4+ 35. Kf2 Bg3+ 36. Kg2 Bf4 37. Rxc8+ Bxc8 38. Nd3 h3+ 39. Kf2 Bd2 40. Kg3 Bf5 41. Nf2 Kd7 42. Nxh3 Bxc3 43. Ra7+ Kc6 44. Rxe7 Bxd4 45. Ng5 f6 46. Nf7 fxe5 47. Rxe5 1/2-1/2

[Event "GER-ch U14"]
[Site "Willingen"]
[Date "2018.05.24"]
[Round "7"]
[White "Klaas, Heiko"]
[Black "Sperling, Niclas"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "1897"]
[BlackElo "1790"]
[PlyCount "33"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f3 Qb6 8. Nf5 Qxb2 9. Nxg7+ Kf8 10. Na4 Qb4+ 11. c3 Qa5 12. Bh6 Kg8 13. Rb1 a6 14. Nb6 Rb8 15. Qd2 d6 16. Nxc8 Rxc8 17. Nf5 1-0

[Event "GER-ch U14"]
[Site "Willingen"]
[Date "2018.05.23"]
[Round "6"]
[White "Breitzmann, Sander"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1852"]
[BlackElo "1897"]
[PlyCount "57"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 0-0 6. Bb3 d5 7. Nbd2 Bg4 8. Qe2 Re8 9. h3 Bh5 10. Nf1 Qd7 11. Ng3 Bg6 12. Bg5 dxe4 13. dxe4 Qe7 14. Nh4 Rad8 15. Ngf5 Qd7 16. Rd1 Qc8 17. 0-0 Ne7 18. Nh6+ gxh6 19. Bxf6 Rxd1 20. Rxd1 Rd8 21. Rxd8+ Qxd8 22. Nxg6 hxg6 23. Qc4 Bxf2+ 24. Kxf2 Qd2+ 25. Qe2 Qf4+ 26. Qf3 Qd2+ 27. Kg1 Nc6 28. Bxf7+ Kf8 29. Bxg6 1-0

[Event "GER-ch U14"]
[Site "Willingen"]
[Date "2018.05.23"]
[Round "5"]
[White "Klaas, Heiko"]
[Black "Silini, Jalel"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1897"]
[BlackElo "1643"]
[PlyCount "62"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. h3 d6 6. c3 Be6 7. Nbd2 Qd7 8. Bxe6 fxe6 9. 0-0 h6 10. Re1 0-0-0 11. Nc4 g5 12. b4 Bb6 13. a4 a5 14. Nxb6+ cxb6 15. Qb3 g4 16. hxg4 Nxg4 17. b5 Ne7 18. d4 Ng6 19. Ba3 Rhg8 20. Red1 Qf7 21. Ra2 Nf4 22. Qc4+ Kb8 23. dxe5 Nxg2 24. Bxd6+ Rxd6 25. exd6 Qxf3 26. Qe2 Qh3 27. Qb2 Nf4 28. f3 Ne5+ 29. Kf2 Qxf3+ 30. Ke1 Qe3+ 31. Kf1 Rg1# 0-1

[Event "GER-ch U14"]
[Site "Willingen"]
[Date "2018.05.22"]
[Round "4"]
[White "Jeschke, Jan"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1690"]
[BlackElo "1897"]
[PlyCount "91"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 0-0 8. 0-0 d5 9. e5 Ng4 10. Bf4 Re8 11. Qe2 Qe7 12. Rae1 d4 13. Qe4 f5 14. Qxd4 Rd8 15. Qc4+ Be6 16. Qxc6 Rab8 17. Bc4 Rb6 18. Bxe6+ Qxe6 19. Qxe6+ Rxe6 20. h3 Nh6 21. Bxh6 Rxh6 22. Rd1 Re8 23. f4 Bxc3 24. bxc3 Rc6 25. Rd3 Kf7 26. Rb1 Re7 27. Rb7 Ra6 28. Rb2 Ke6 29. Kf2 Rd7 30. Ke3 h6 31. Rxd7 Kxd7 32. Kd4 Kc6 33. c4 Ra3 34. c3 a6 35. g4 g6 36. gxf5 gxf5 37. Rg2 Ra5 38. c5 Ra4+ 39. c4 Kd7 40. Rg7+ Kd8 41. e6 Rxa2 42. Ke5 Re2+ 43. Kf6 c6 44. Rg8+ Kc7 45. e7 Kd7 46. Rd8+ 1-0

[Event "GER-ch U14"]
[Site "Willingen"]
[Date "2018.05.21"]
[Round "3"]
[White "Klaas, Heiko"]
[Black "Lutz, Ruben"]
[Result "0-1"]
[ECO "C09"]
[WhiteElo "1897"]
[BlackElo "2005"]
[PlyCount "98"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Bd6 7. 0-0 Nge7 8. dxc5 Bxc5 9. Nb3 Bd6 10. Nbd4 0-0 11. c3 a6 12. Bd3 h6 13. Qc2 Bd7 14. Re1 Rc8 15. Be3 Nb4 16. Bh7+ Kh8 17. Qb1 Nbc6 18. Bd3 Re8 19. Qc1 Nxd4 20. Nxd4 Nc6 21. Qd2 Qh4 22. Nf3 Qh5 23. Bf4 Bc5 24. Bc4 Be6 25. Bb3 Rcd8 26. Ne5 Qh4 27. Bg3 Qf6 28. Re2 d4 29. Nxc6 bxc6 30. cxd4 Bxd4 31. Qc2 Bf5 32. Rxe8+ Rxe8 33. Qd2 Bxb2 34. Re1 Rxe1+ 35. Qxe1 Kh7 36. h3 Bd4 37. Qe8 Bg6 38. Qa8 c5 39. Bc4 Qg5 40. Kh2 h5 41. h4 Qf5 42. Qxa6 Bxf2 43. Qd6 Bxg3+ 44. Qxg3 Qe4 45. Bb5 c4 46. a4 Qd4 47. Qe1 c3 48. Be2 c2 49. Qc1 Qe5+ 0-1

[Event "GER-ch U14"]
[Site "Willingen"]
[Date "2018.05.20"]
[Round "2"]
[White "Kirchner, Markus"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1813"]
[BlackElo "1897"]
[PlyCount "95"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 Nf6 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. Nc3 Bg4 10. Be3 0-0 11. h3 Bh5 12. Qc2 Bg6 13. Qb3 Ne7 14. 0-0 c6 15. Bd3 Nd2 16. Nxd2 Bxd3 17. Rfe1 Bg6 18. Na4 Nf5 19. Nf3 Nxe3 20. Rxe3 Re8 21. Rae1 Ba5 22. R1e2 Rb8 23. Nc5 Bb6 24. Nd3 h6 25. Nf4 Be4 26. Qc3 Qd7 27. b4 Qf5 28. Nd3 Qd7 29. Nf4 Qe7 30. a4 f6 31. a5 Bc7 32. Nd3 fxe5 33. Ndxe5 Qd6 34. Nd2 Bf5 35. Nf1 Rf8 36. Ng3 Bh7 37. Ng4 Bd8 38. Re6 Qd7 39. Qc5 Bg5 40. Qxa7 Bd3 41. Re1 Bd2 42. Re7 Qd8 43. R1e6 Bxb4 44. Rxb7 Rxb7 45. Qxb7 Qxa5 46. Nh5 Qa1+ 47. Kh2 Qxd4 48. Ngf6+ 1-0

[Event "GER-ch U14"]
[Site "Willingen"]
[Date "2018.05.20"]
[Round "1"]
[White "Klaas, Heiko"]
[Black "Krastev, Alexander"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1897"]
[BlackElo "2211"]
[PlyCount "84"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Bb3 d6 6. c3 h6 7. Nbd2 Be6 8. Nf1 0-0 9. Ng3 d5 10. 0-0 Re8 11. Re1 Bb6 12. h3 a5 13. Ba4 dxe4 14. dxe4 Nd7 15. Be3 Bxe3 16. Rxe3 Bc4 17. b3 Ba6 18. Qd5 Nb6 19. Qxd8 Raxd8 20. Bxc6 bxc6 21. c4 g6 22. Kf1 f6 23. Ke1 Nd7 24. Kd2 Nc5+ 25. Kc2 Rd6 26. Rd1 Red8 27. Rd2 Kf7 28. Kc3 Ne6 29. Ne2 c5 30. Red3 Nd4 31. Nexd4 cxd4+ 32. Kb2 Rb8 33. Rc2 c5 34. Nd2 a4 35. Nb1 Rdb6 36. Na3 Rb4 37. Rc1 f5 38. f3 Ke6 39. Rd2 axb3 40. axb3 Rxb3+ 41. Ka2 R3b4 42. Rcc2 Ra8 0-1

[Event "Hamburg CC Easter op 4th"]
[Site "Hamburg"]
[Date "2018.04.02"]
[Round "7"]
[White "Emami, Madjid"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1999"]
[BlackElo "1625"]
[PlyCount "68"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 c5 5. d3 0-0 6. e4 d6 7. Nbd2 Nc6 8. c3 Nd7 9. a4 Nde5 10. Qc2 Be6 11. Ng5 Bg4 12. f3 Bd7 13. Nh3 a6 14. Nf2 b5 15. axb5 axb5 16. Rxa8 Qxa8 17. f4 Ng4 18. Nxg4 Bxg4 19. Nf3 b4 20. h3 Bd7 21. c4 Qa2 22. g4 b3 23. Qd2 Nb4 24. e5 Bc6 25. d4 Nc2 26. d5 Bb7 27. Qc3 f6 28. exd6 exd6 29. f5 Re8 30. Bf4 Ba6 31. Bxd6 Re3 32. Qxe3 Nxe3 33. Re1 Qxb2 34. Rxe3 Qc1+ 0-1

[Event "Hamburg CC Easter op 4th"]
[Site "Hamburg"]
[Date "2018.04.01"]
[Round "6"]
[White "Klaas, Heiko"]
[Black "Wobbe, Sven"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1625"]
[BlackElo "2077"]
[PlyCount "100"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. g3 d6 4. Bg2 Nf6 5. Qe2 Nc6 6. c3 Be7 7. 0-0 0-0 8. d4 cxd4 9. cxd4 b6 10. b3 Bb7 11. Bb2 Rc8 12. Nc3 Re8 13. Rac1 Nb4 14. Rfd1 d5 15. e5 Ne4 16. a3 Nxc3 17. Bxc3 Ba6 18. Qd2 Nc6 19. b4 Bc4 20. Qe3 a5 21. Rb1 axb4 22. axb4 b5 23. Nd2 Ra8 24. Nxc4 bxc4 25. Rb2 Qb6 26. Rdb1 Qb5 27. h4 Ra3 28. Qd2 Rea8 29. Bf3 Ra1 30. Bd1 Rxb1 31. Rxb1 Rb8 32. h5 h6 33. g4 Na7 34. Qa2 Qb7 35. Ba4 Nb5 36. Bxb5 Qxb5 37. Qa7 Kf8 38. Rb2 Qb7 39. Qxb7 Rxb7 40. Kf1 Ke8 41. Ke2 Kd7 42. Kd2 Kc6 43. Kc2 Ra7 44. f4 Kb5 45. f5 Bg5 46. Rb1 Ra2+ 47. Rb2 Ra1 48. Rb1 Ra2+ 49. Rb2 Ra1 50. Rb1 Ra2+ 1/2-1/2

[Event "Hamburg CC Easter op 4th"]
[Site "Hamburg"]
[Date "2018.04.01"]
[Round "5"]
[White "Lammers, Markus"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2317"]
[BlackElo "1625"]
[PlyCount "47"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qd2 bxc6 7. Nc3 Ne7 8. Na4 Bd6 9. f4 Ng6 10. g3 Be7 11. h4 Qe6 12. Qe3 f5 13. exf5 Qxf5 14. Bd3 Qf6 15. Bd2 d6 16. Bc3 Qf7 17. h5 Nf8 18. h6 Rg8 19. hxg7 Ne6 20. f5 Nxg7 21. f6 Nf5 22. Bxf5 Bxf5 23. 0-0-0 Rg4 24. Rh4 1-0

[Event "Hamburg CC Easter op 4th"]
[Site "Hamburg"]
[Date "2018.03.31"]
[Round "3"]
[White "Klaas, Heiko"]
[Black "Rudolph, Jens Erik"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1625"]
[BlackElo "1950"]
[PlyCount "85"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. fxe5 dxe5 6. dxe5 Nxe5 7. Qxd8+ Kxd8 8. Bf4 Bd6 9. 0-0-0 Ke7 10. Bg5 c6 11. Nf3 Nxf3 12. gxf3 h6 13. Be3 Be6 14. Kb1 g5 15. Bd4 Bb4 16. a3 Ba5 17. Bc5+ Ke8 18. e5 Bxc3 19. bxc3 Nd5 20. Kb2 b6 21. Bd4 Rd8 22. h4 g4 23. fxg4 Ne3 24. Re1 Nxf1 25. Rhxf1 c5 26. Be3 Bxg4 27. Rf6 h5 28. Bg5 Rd7 29. Rc6 Rb7 30. e6 Rb8 31. exf7+ Kxf7 32. Re7+ Kg8 33. Rcc7 a6 34. Rg7+ Kf8 35. Rcf7+ Ke8 36. Rf4 Bd7 37. Re4+ Kf8 38. Rxd7 Rc8 39. Rf4+ Kg8 40. Rff7 Rb8 41. Rg7+ Kf8 42. Rdf7+ Ke8 43. Rf4 1-0

[Event "Hamburg CC Easter op 4th"]
[Site "Hamburg"]
[Date "2018.03.31"]
[Round "4"]
[White "Poulsen, Klaus E"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "C25"]
[WhiteElo "2080"]
[BlackElo "1625"]
[PlyCount "30"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6 7. d4 h6 8. Nxf7 Kxf7 9. Bc4+ Ke8 10. Bxf4 Bg7 11. e5 dxe5 12. Qd3 Nge7 13. 0-0-0 Bf5 14. Ne4 Qxd4 15. Qxd4 Nxd4 0-1

[Event "Hamburg CC Easter op 4th"]
[Site "Hamburg"]
[Date "2018.03.30"]
[Round "1"]
[White "Holinka, Henning"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2159"]
[BlackElo "1625"]
[PlyCount "49"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Bb3 Ne7 7. Nbd2 Ng6 8. Nf1 0-0 9. Be3 Nf4 10. Bxf4 exf4 11. N1d2 Re8 12. 0-0 Be6 13. Re1 Bg4 14. Qc2 Qd7 15. e5 dxe5 16. Nxe5 Qf5 17. Bxf7+ Kf8 18. Bxe8 Rxe8 19. Ndf3 g5 20. Qb3 Re7 21. Nxg4 Qxg4 22. Rxe7 Kxe7 23. Re1+ Kf8 24. Ne5 Qh5 25. Qe6 1-0

[Event "Hamburg CC Easter op 4th"]
[Site "Hamburg"]
[Date "2018.03.30"]
[Round "2"]
[White "Klaas, Heiko"]
[Black "Christensen, Andreas"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1625"]
[BlackElo "1838"]
[PlyCount "89"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. g3 d5 4. e5 d4 5. Bg2 Nc6 6. 0-0 Nge7 7. d3 Nd5 8. Nbd2 Be7 9. Ne4 h6 10. Re1 Rb8 11. c3 dxc3 12. bxc3 b5 13. d4 c4 14. Qc2 Bd7 15. a4 bxa4 16. Rxa4 Na5 17. Ra2 Rb3 18. Nfd2 Rb5 19. Ba3 Bxa3 20. Rxa3 0-0 21. Nd6 Rb8 22. Rea1 Nc6 23. N2xc4 Qc7 24. Qd3 f6 25. f4 fxe5 26. dxe5 Nb6 27. Nb5 Qd8 28. Ncd6 Nc8 29. Ra6 Nxe5 30. Qe2 Bxb5 31. Nxb5 Nd3 32. Qxe6+ Kh8 33. Qc4 Nb2 34. Qe2 Nd3 35. Nd4 Nc5 36. Rc6 Re8 37. Qc2 Nd7 38. Ne6 Qe7 39. Qg6 Nf8 40. Nxf8 Qe3+ 41. Kh1 Rxf8 42. Be4 Kg8 43. Rc7 Rf7 44. Qh7+ Kf8 45. Qh8# 1-0

[Event "GER-chT U14"]
[Site "Verden an der Aller"]
[Date "2017.12.29"]
[Round "5.3"]
[White "Elstner, Florian"]
[Black "Klaas, Heiko"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "1407"]
[BlackElo "1691"]
[PlyCount "103"]
[EventDate "2017.12.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Plauen Koenig"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Nbd7 7. 0-0 e5 8. d5 Nc5 9. Qc2 a5 10. Bg5 c6 11. b3 Qc7 12. Rfe1 Nh5 13. Bf1 f5 14. exf5 Bxf5 15. Qd2 Nf4 16. Bxf4 exf4 17. Rac1 Rae8 18. Rxe8 Rxe8 19. Re1 Rxe1 20. Qxe1 Qd7 21. Nh4 Bd3 22. Bxd3 Nxd3 23. dxc6 bxc6 24. Qd2 Qe7 25. Qxd3 Qe1+ 26. Qf1 Qxf1+ 27. Kxf1 Bxc3 28. Ke2 Kf7 29. Kd3 Bb4 30. Ke4 Kf6 31. Nf3 Bc5 32. Kxf4 Bxf2 33. Ng5 Be3+ 34. Kxe3 Kxg5 35. Ke4 Kg4 36. a3 h5 37. b4 a4 38. b5 d5+ 39. cxd5 cxb5 40. d6 b4 41. axb4 a3 42. d7 a2 43. d8Q a1Q 44. Qd7+ Kg5 45. Qe7+ Kh6 46. Qf8+ Kh7 47. Qe7+ Kh6 48. Qf8+ Kh7 49. Qf7+ Kh6 50. Qf8+ Kh7 51. Qf7+ Kh6 52. Qf8+ 1/2-1/2

[Event "GER-chT U14"]
[Site "Verden an der Aller"]
[Date "2017.12.29"]
[Round "6.4"]
[White "Hundrieser, Malte"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1956"]
[BlackElo "1691"]
[PlyCount "75"]
[EventDate "2017.12.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Halle Reideburger"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 Nf6 7. Qe2 d6 8. Be3 Be6 9. 0-0-0 Qe7 10. Bxb6 axb6 11. Kb1 0-0-0 12. g3 Nd7 13. f4 f5 14. Bg2 fxe4 15. Bxe4 Kb8 16. Bxc6 bxc6 17. f5 Ne5 18. fxe6 Qxe6 19. Qg2 Qg6 20. Nd4 d5 21. Rhe1 Rde8 22. Re2 Nc4 23. Rde1 Rxe2 24. Qxe2 Qf6 25. Qd3 Kb7 26. b3 Nd6 27. Re6 Qf2 28. Re7 Qxh2 29. Rxg7 h5 30. Kb2 Qg2 31. Qg6 Rd8 32. Rxc7+ Kxc7 33. Ne6+ Kd7 34. Nxd8 h4 35. Qe6+ Kxd8 36. Qxd6+ Ke8 37. Qxc6+ Kf7 38. gxh4 1-0

[Event "GER-chT U14"]
[Site "Verden an der Aller"]
[Date "2017.12.28"]
[Round "4.4"]
[White "Movsisyan, Andranik"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1576"]
[BlackElo "1691"]
[PlyCount "76"]
[EventDate "2017.12.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Weisse Dame"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Bg5 h6 6. Bxf6 Qxf6 7. Nc3 d6 8. Qe2 Bg4 9. Nd5 Qd8 10. h3 Nd4 11. Qd1 Nxf3+ 12. gxf3 Bh5 13. Qe2 0-0 14. 0-0-0 c6 15. Ne3 a5 16. Ng4 b5 17. Bxf7+ Rxf7 18. Rdg1 Kh7 19. Rg2 b4 20. Rhg1 a4 21. d4 Bxd4 22. Qc4 b3 23. cxb3 axb3 24. a3 d5 25. Qe2 Ra5 26. exd5 Qxd5 27. Qe4+ Qxe4 28. fxe4 Rc5+ 29. Kd2 Rc2+ 30. Ke1 Bxb2 31. f4 Bc3+ 32. Kf1 Rxf4+ 33. Rf2 Bxg4 34. Rxf4 Bxh3+ 35. Rg2 b2 36. Kg1 Rxg2+ 37. Kh1 b1Q+ 38. Rf1 Qxf1# 0-1

[Event "GER-chT U14"]
[Site "Verden an der Aller"]
[Date "2017.12.27"]
[Round "2.4"]
[White "Klaas, Heiko"]
[Black "Gallasch, Robin"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "1691"]
[BlackElo "1752"]
[PlyCount "102"]
[EventDate "2017.12.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Porz SG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nh3 e6 7. Nf4 Bd6 8. Ngh5 Bxf4 9. Nxf4 Bf5 10. Bc4 Nf6 11. b3 0-0 12. Bb2 Qc7 13. Qd2 Nbd7 14. 0-0-0 Nd5 15. Ne2 N7f6 16. f3 a5 17. g4 Bg6 18. h4 h5 19. g5 Nd7 20. f4 b5 21. Bxd5 cxd5 22. Ng3 Rfc8 23. c3 b4 24. Ne2 a4 25. Qe3 axb3 26. axb3 bxc3 27. Nxc3 Qb8 28. Kd2 Qxb3 29. Ba1 Qc2+ 30. Ke1 Nb6 31. Ne2 Nc4 32. Qc3 Qe4 33. Rh3 Na3 34. Qf3 Qxf3 35. Rxf3 Nc2+ 36. Kf2 Rxa1 37. Rxa1 Nxa1 38. Rc3 Rxc3 39. Nxc3 Nc2 40. Ne2 Bd3 41. Nc3 Bc4 42. Nd1 Nxd4 43. Ne3 Nf5 44. Nxf5 exf5 45. Ke3 Kf8 46. Kd4 Ke7 47. Ke5 g6 48. Kd4 Kd6 49. Ke3 Kc5 50. Kd2 Kd4 51. Ke1 Ke3 0-1

[Event "GER-chT U14"]
[Site "Verden an der Aller"]
[Date "2017.12.27"]
[Round "1.3"]
[White "Spaeth, Rene"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1462"]
[BlackElo "1691"]
[PlyCount "114"]
[EventDate "2017.12.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Biberach"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Qb3 d5 10. Qxb4 dxc4 11. 0-0 Qd6 12. Qxc4 0-0 13. Re1 Be6 14. Qc2 Bd5 15. Na3 Qb4 16. Nc4 Nxf2 17. Kxf2 Qxc4 18. Qxc4 Bxc4 19. Rac1 Bxa2 20. Rxc7 Bd5 21. Ree7 Rac8 22. Rxc8 Rxc8 23. Rd7 Bc6 24. Re7 Kf8 25. Re5 f6 26. Re3 Re8 27. Rd3 Bb5 28. Rd2 Ke7 29. d5 Kd6 30. Nd4 Bd7 31. Nf3 g5 32. Rd4 a5 33. Nd2 Bf5 34. g4 Bg6 35. b3 b5 36. Nf1 Re4 37. Rd2 Rxg4 38. Ne3 Rf4+ 39. Kg3 h5 40. Ra2 h4+ 41. Kg2 Be4+ 42. Kg1 Rf3 43. Ng4 Bxd5 44. Rxa5 Be6 45. Nf2 Rxb3 46. Ne4+ Kd5 47. Nc5 Rb1+ 48. Kf2 Bf5 49. Ra3 Rb2+ 50. Kg1 Kd4 51. Nb7 b4 52. Rf3 Be4 53. Rxf6 Bxb7 54. Rb6 Be4 55. Rb5 Ke3 56. h3 Rb1+ 57. Kh2 Rh1# 0-1

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "7.23"]
[White "Klaas, Heiko"]
[Black "Kurzynsky, Mirko"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1634"]
[BlackElo "1938"]
[PlyCount "88"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Nb3 d6 8. f4 Ng4 9. Bg1 0-0 10. h3 Nf6 11. g4 e5 12. f5 d5 13. Bc5 Nxe4 14. Nxe4 dxe4 15. Bxf8 Qh4+ 16. Ke2 Bxf8 17. Qe1 Qf6 18. Bg2 gxf5 19. gxf5 Bxf5 20. Qg3+ Qg6 21. Qxg6+ Bxg6 22. h4 f5 23. h5 Bf7 24. c3 Bc4+ 25. Ke3 Kf7 26. h6 Ke6 27. Rad1 Rd8 28. Rxd8 Nxd8 29. Bf1 Bxf1 30. Rxf1 Bxh6+ 31. Ke2 Bf8 32. Rg1 b6 33. a3 f4 34. Nd2 f3+ 35. Kf1 Kf5 36. Rg8 Ne6 37. b4 Kf4 38. Nc4 e3 39. Rh8 h6 40. Rh7 Bg7 41. Nd6 e2+ 42. Kf2 e4 43. Ne8 e3+ 44. Ke1 Bxc3# 0-1

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "1.22"]
[White "Klaas, Heiko"]
[Black "Winter, Markus"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1634"]
[BlackElo "2034"]
[PlyCount "84"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bg4 6. Be2 e6 7. h3 Bh5 8. 0-0 Rc8 9. a3 cxd4 10. cxd4 Qb6 11. Nc3 Bxf3 12. Bxf3 Qxd4 13. Qc2 Qxe5 14. Bd2 Bd6 15. g3 Qf6 16. Bg2 Nge7 17. Rfe1 0-0 18. Rac1 Ne5 19. Bf4 N7g6 20. Bxe5 Nxe5 21. Qe2 a6 22. b4 Nc4 23. Ne4 Qe7 24. Nxd6 Qxd6 25. Qd3 b5 26. h4 Rc7 27. Rc3 Rfc8 28. Rec1 Ne5 29. Rxc7 Rxc7 30. Rxc7 Nxd3 31. Rc8+ Qf8 32. Rxf8+ Kxf8 33. f4 Nb2 34. Bf1 Nc4 35. Bxc4 dxc4 36. Kf2 Ke7 37. Ke3 Kd6 38. Kd4 f6 39. g4 e5+ 40. fxe5+ fxe5+ 41. Ke4 Ke6 42. h5 h6 0-1

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "5.26"]
[White "Klaas, Heiko"]
[Black "Woynowski, Manfred"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "1634"]
[BlackElo "1852"]
[PlyCount "76"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 g6 5. 0-0 Bg7 6. c3 Nge7 7. d4 cxd4 8. cxd4 d5 9. e5 0-0 10. Nc3 Nf5 11. b3 f6 12. Re1 fxe5 13. dxe5 Bd7 14. a4 a6 15. Ba3 Re8 16. Bb2 Rc8 17. Ne2 Qb6 18. Rb1 Qc7 19. Nf4 Nd8 20. Rc1 Qb6 21. Qd3 Rxc1 22. Rxc1 Nc6 23. Re1 Na5 24. Nd2 Bxa4 25. bxa4 Qxb2 26. Nxd5 Bxe5 27. g4 Ng7 28. Nf3 Nc6 29. Rb1 Qa2 30. Nxe5 Nxe5 31. Nf6+ Kf7 32. Rxb7+ Re7 33. Rxe7+ Kxe7 34. Ng8+ Kf8 35. Qd8+ Ne8 36. Qe7+ Kxg8 37. Qxe8+ Kg7 38. Qe7+ Nf7 1/2-1/2

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "4.30"]
[White "Kotyk, Michael"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "1972"]
[BlackElo "1634"]
[PlyCount "132"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 0-0 5. d4 b6 6. c4 Bb7 7. Be2 c5 8. 0-0 cxd4 9. exd4 d5 10. Ne5 Nc6 11. f4 Rc8 12. Na3 Ne4 13. Nb5 a6 14. Nxc6 Rxc6 15. Na3 e6 16. Bf3 f5 17. Bxe4 fxe4 18. cxd5 exd5 19. Qd2 Qd7 20. Nc2 a5 21. Ba3 Rfc8 22. Ne3 Ba6 23. Rfc1 Bd3 24. Bb2 Bf8 25. a3 Bh6 26. g3 g5 27. Qf2 gxf4 28. gxf4 Rg6+ 29. Kh1 Rf8 30. Ng2 Qh3 31. Rg1 Qf3 32. Qxf3 exf3 33. Nh4 f2 34. Nxg6 fxg1Q+ 35. Kxg1 hxg6 36. Bc1 Bxf4 37. Bxf4 Rxf4 38. Rd1 Bc2 39. Rc1 Bxb3 40. Rc6 Kf7 41. Rxb6 Bc4 42. Rb7+ Kf6 43. Ra7 Rxd4 44. Rxa5 Bb3 45. Rb5 Ba4 46. Ra5 g5 47. Kf2 Ke5 48. Ke3 Rh4 49. Ra8 Rh3+ 50. Kf2 Rxa3 51. Rg8 Kf4 52. Rf8+ Kg4 53. Rd8 Ra2+ 54. Ke3 Bb3 55. Rd6 Bc4 56. h3+ Kxh3 57. Kf3 Ra3+ 58. Kf2 Kg4 59. Rd8 Rf3+ 60. Kg2 Rf4 61. Rd7 Bf1+ 62. Kg1 d4 63. Rd8 d3 64. Rd6 Kg3 65. Rd8 Be2 66. Rg8 Rf1# 0-1

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "2.25"]
[White "Mueller, Tobias"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2128"]
[BlackElo "1634"]
[PlyCount "91"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 c5 5. e4 Nc6 6. Nge2 0-0 7. d3 d6 8. 0-0 Ne8 9. f4 Nc7 10. f5 e6 11. g4 Rb8 12. a4 a6 13. Ng3 Nd4 14. Nce2 b5 15. axb5 axb5 16. Ra7 bxc4 17. f6 Bxf6 18. Rxc7 Nb5 19. Rxc8 Rxc8 20. dxc4 Nd4 21. Bh6 Re8 22. Qd2 Qe7 23. Be3 Nc6 24. Nc3 Rb8 25. Nb5 Red8 26. b3 Nb4 27. Qf2 Bg7 28. Rd1 Rb6 29. Nf1 Be5 30. h4 Ra6 31. Bg5 f6 32. Bf4 Ra2 33. Qf3 Bxf4 34. Qxf4 e5 35. Qf3 Kg7 36. Ne3 Nc6 37. Nd5 Qf7 38. Rf1 Nd4 39. Nxd4 cxd4 40. Nxf6 Qe6 41. g5 Rda8 42. Bh3 Qe7 43. Nd5 Qd8 44. Qf7+ Kh8 45. Nf6 R8a7 46. Bd7 1-0

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "6.25"]
[White "Riering, Berthold"]
[Black "Klaas, Heiko"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "1917"]
[BlackElo "1634"]
[PlyCount "62"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bd6 6. d4 exd4 7. Qxd4 f6 8. Re1 Ne7 9. e5 fxe5 10. Nxe5 0-0 11. Bg5 Be6 12. Qe4 Bd5 13. Qe2 Qe8 14. Nc3 Bc5 15. Nd3 Bc4 16. Bxe7 Rxf2 17. Bxc5 Rxe2 18. Rxe2 Qh5 19. Re5 Qg6 20. Re4 Bxd3 21. cxd3 Rd8 22. Rae1 b6 23. Bf2 h6 24. d4 Rf8 25. Bg3 Rf7 26. Nd1 Qg5 27. R4e2 Qd5 28. Be5 Qxa2 29. Nc3 Qc4 30. Ne4 Qd5 31. Nc3 Qc4 1/2-1/2

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.01"]
[Round "3.38"]
[White "Klaas, Heiko"]
[Black "Schacht, David"]
[Result "1-0"]
[ECO "C53"]
[WhiteElo "1558"]
[BlackElo "996"]
[PlyCount "61"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 Bg4 9. Qb3 Bxf3 10. Nxf3 Rb8 11. Bxf7+ Kf8 12. 0-0 Qe7 13. Bd5 Qd7 14. e5 dxe5 15. Nxe5 Nxe5 16. dxe5 c6 17. Be4 Qg4 18. Qb4+ Ne7 19. Rad1 c5 20. Qa4 b5 21. Qxa7 Kf7 22. Bd5+ Kg6 23. Qxe7 Qf5 24. Qd6+ Kg5 25. f4+ Kg4 26. Bf3+ Kh4 27. Qe7+ g5 28. fxg5 Qxg5 29. g3+ Kh3 30. Qxg5 h5 31. Bg2# 1-0

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.16"]
[Round "6"]
[White "Arft, Inge"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1381"]
[BlackElo "1573"]
[PlyCount "68"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 g6 3. e4 d6 4. Bc4 Bg7 5. Be3 0-0 6. Nd5 Nxe4 7. Qf3 Nf6 8. Nxf6+ Bxf6 9. Bh6 Re8 10. 0-0-0 e6 11. h4 d5 12. Bd3 Nd7 13. h5 Bxd4 14. hxg6 hxg6 15. Qh3 Qf6 16. c3 Bc5 17. f4 Bd6 18. Ne2 c5 19. Bg5 Qg7 20. Bb5 a6 21. Bxd7 Bxd7 22. Qh4 Be7 23. Bxe7 Rxe7 24. Qxe7 Bb5 25. Qxb7 Re8 26. Rde1 d4 27. cxd4 cxd4 28. Kd2 Qf8 29. a3 Qc5 30. Rc1 Qf5 31. Rh3 d3 32. Nd4 Qxf4+ 33. Re3 Qxd4 34. Rc7 Qxb2+ 0-1

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.16"]
[Round "5"]
[White "Bellon, Antonio"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1674"]
[BlackElo "1573"]
[PlyCount "95"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. Nxe5 Nxe5 6. d4 Nxc4 7. dxc5 d6 8. Qa4+ Bd7 9. Qxc4 0-0 10. 0-0 a6 11. Re1 Re8 12. cxd6 cxd6 13. Bg5 h6 14. Bh4 Rc8 15. Qd4 Re6 16. Nd2 Qe8 17. f3 Bc6 18. Rad1 b5 19. Nf1 Rc7 20. Bxf6 Rxf6 21. Ne3 Re6 22. Nf5 Qf8 23. Qb6 Rc8 24. Nd4 Rg6 25. Nxc6 d5 26. exd5 Kh8 27. Qe3 Rd6 28. b3 Kh7 29. c4 Rd7 30. c5 Rcc7 31. Ne5 Rd8 32. d6 Rcc8 33. Qd3+ Kg8 34. c6 Ra8 35. c7 Re8 36. d7 Qc5+ 37. Kh1 Qxc7 38. dxe8Q+ Rxe8 39. f4 Qc5 40. Qd7 Re7 41. Qd3 Re8 42. Rc1 Qb4 43. Re4 Qa3 44. Qd2 Qe7 45. Rce1 Qb7 46. Qd7 Qxd7 47. Nxd7 Rc8 48. Re8+ 1-0

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.15"]
[Round "3"]
[White "Klaas, Heiko"]
[Black "Schmidt, Aliyah Renee"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1573"]
[BlackElo "1197"]
[PlyCount "49"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Nd5 Nxd5 10. exd5 Bf5 11. Bf2 h6 12. g4 Bh7 13. h4 Qc8 14. c3 b5 15. Qd2 Nd7 16. g5 h5 17. Bh3 Qc7 18. Qe3 Rb8 19. Rg1 Nb6 20. Qd2 0-0 21. Rd1 Qc4 22. Na5 Qc7 23. Nc6 Rb7 24. b3 Nd7 25. Nxe7+ 1-0

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.15"]
[Round "4"]
[White "Klaas, Heiko"]
[Black "Schwarzkopf, Joerg"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1573"]
[BlackElo "1814"]
[PlyCount "92"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bc4 0-0 8. 0-0 Bxc3 9. bxc3 Nxe4 10. Ba3 Ne7 11. f4 d5 12. Bxe7 Qxe7 13. Qxd5 Nxc3 14. Qf3 Qb4 15. Qd3 Bf5 16. Qxf5 Qxc4 17. fxe5 Rae8 18. a3 Qe4 19. Qxe4 Nxe4 20. Rae1 Rxe5 21. Rf4 f5 22. Nd2 Rc5 23. Nxe4 fxe4 24. Rfxe4 Rxc2 25. R4e2 Rxe2 26. Rxe2 Kf7 27. Rc2 Ke6 28. Re2+ Kd6 29. h3 Rf7 30. g4 Kc5 31. Kg2 Kc4 32. Re3 b5 33. Kg3 Rd7 34. Re4+ Kb3 35. Re3+ Ka4 36. h4 a5 37. h5 b4 38. axb4 axb4 39. Re8 h6 40. g5 hxg5 41. Kg4 b3 42. Ra8+ Kb4 43. Kxg5 b2 44. Rg8 Rb7 45. Rxg7 Rxg7+ 46. Kf6 Ra7 0-1

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.14"]
[Round "2"]
[White "Junker, Stefan"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "E65"]
[WhiteElo "1827"]
[BlackElo "1573"]
[PlyCount "119"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 0-0 5. d4 d6 6. 0-0 Nbd7 7. Nc3 c5 8. b3 cxd4 9. Nxd4 Nc5 10. Bb2 Ng4 11. h3 Ne5 12. Kh2 Qd7 13. Qc2 Ng4+ 14. hxg4 Bxd4 15. e3 Bg7 16. f3 f5 17. g5 h6 18. gxh6 Bxh6 19. f4 e6 20. Rad1 Qe7 21. b4 Na6 22. a3 Nc7 23. Rh1 Rd8 24. Kg1 Bg7 25. Kf2 Ne8 26. Rh3 a6 27. Rdh1 Rb8 28. Ne2 Nf6 29. Bf3 b5 30. cxb5 axb5 31. Nd4 Bd7 32. Qb3 Rdc8 33. Ke2 Rc4 34. Rc1 Rbc8 35. Rxc4 bxc4 36. Qc2 e5 37. Bb7 exd4 38. Bxd4 Rc7 39. Ba6 d5 40. b5 Bc8 41. b6 Rc6 42. Bxc8 Rxc8 43. Qb2 Rb8 44. a4 Ne8 45. a5 Nd6 46. a6 Nc8 47. b7 Qf8 48. Rh1 Nd6 49. Bxg7 Qxg7 50. Qxg7+ Kxg7 51. a7 Rxb7 52. a8Q Rb2+ 53. Kf3 c3 54. Qxd5 Ne4 55. Qe5+ Kg8 56. Rh8+ Kf7 57. Qe8+ Kf6 58. Qe5+ Kf7 59. Rh7+ Kf8 60. Qh8# 1-0

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.14"]
[Round "1"]
[White "Klaas, Heiko"]
[Black "Wenzel, Birger"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1573"]
[BlackElo "2086"]
[PlyCount "48"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. f4 Nf6 4. Bd3 d5 5. Nc3 dxe4 6. Nxe4 Nxe4 7. Bxe4 Qxd4 8. Qf3 Bg4 9. Qxg4 Qxe4+ 10. Ne2 0-0 11. c3 h5 12. Qg3 Rd8 13. Qf2 Nd7 14. 0-0 e6 15. Ng3 Qc6 16. Be3 Nf6 17. Bd4 Ng4 18. Qd2 Qc4 19. Ne2 c5 20. b3 Qa6 21. h3 Nh6 22. Qb2 cxd4 23. cxd4 Nf5 24. Rad1 Qb6 0-1

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2016.12.30"]
[Round "7.2"]
[White "Seinsoth, Paul"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1391"]
[BlackElo "1594"]
[PlyCount "103"]
[EventDate "2016.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Erfurt SK"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. a3 Be7 7. b4 a6 8. d3 0-0 9. Nf3 Nc6 10. 0-0 Be6 11. Rb1 Bf6 12. Ne4 Be7 13. Nc5 Bc8 14. Bb2 Bd6 15. Qc2 Nd7 16. Rfd1 Re8 17. d4 exd4 18. Nxd4 Nxd4 19. Rxd4 Qe7 20. Nxb7 Bxb7 21. Bxb7 Ra7 22. Re4 Qf8 23. Bc6 Rd8 24. Rg4 Ne5 25. Bxe5 Bxe5 26. Re4 Bf6 27. Rd1 Rb8 28. Qc4 g6 29. Rd7 a5 30. Rxf7 Qxf7 31. Bd5 c5 32. Bxf7+ Rxf7 33. bxc5 Kg7 34. c6 Rc8 35. Re6 Bb2 36. Qb3 Bd4 37. e3 Bf6 38. Rd6 Be5 39. Rd7 Rxd7 40. cxd7 Rd8 41. Qb5 Bf6 42. Qxa5 Rxd7 43. Qb5 Re7 44. a4 Kf7 45. Kg2 Re6 46. Qc4 Bd8 47. Qd5 Be7 48. a5 Kf6 49. Qb5 Re5 50. Qb2 Ke6 51. a6 Bc5 52. Qb7 1-0

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2016.12.29"]
[Round "6.3"]
[White "Franz, Theodor Franz"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1303"]
[BlackElo "1594"]
[PlyCount "95"]
[EventDate "2016.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Berlin Schachpinguine"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d4 exd4 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qxf6 10. Nxe6 fxe6 11. Qh5+ Qf7 12. Qxc5 Rf8 13. f3 0-0-0 14. Qxc4 Rd5 15. Nd2 Qg6 16. b4 d3 17. cxd3 Ne5 18. Qe4 Nxd3 19. Qxg6 hxg6 20. Re2 Rfd8 21. Nb3 Nxb4 22. Rxe6 a5 23. a4 Rd3 24. Rb1 b6 25. Rxg6 Re8 26. Bg5 Nd5 27. Rxg7 Nc3 28. Rc1 Ne2+ 29. Kf2 Nxc1 30. Nxc1 Rd4 31. h4 Rxa4 32. h5 Rh8 33. g4 Rc4 34. Be3 a4 35. h6 a3 36. h7 Kb7 37. g5 Rc2+ 38. Kg3 a2 39. Nxa2 Rxa2 40. g6 Raa8 41. Bf4 Rac8 42. Be5 Rhe8 43. f4 b5 44. Rd7 Kc6 45. Rxc7+ Rxc7 46. Bxc7 Kxc7 47. g7 b4 48. g8Q 1-0

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2016.12.29"]
[Round "5.3"]
[White "Klaas, Heiko"]
[Black "Sinnhoefer, Joshua"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1594"]
[BlackElo "1486"]
[PlyCount "92"]
[EventDate "2016.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Delmenhorst"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Bxf7+ Kxf7 10. Qb3+ d5 11. Qxb4 Re8 12. 0-0 b6 13. Qb3 Ba6 14. Rd1 Bc4 15. Ne5+ Rxe5 16. Qf3+ Qf6 17. Qxf6+ gxf6 18. dxe5 fxe5 19. Na3 b5 20. Nxc4 dxc4 21. Rd7+ Ke6 22. Rxc7 Kd6 23. Rxh7 Kc5 24. f3 Nf6 25. Rd1 Nxh7 26. Rd7 Nf6 27. Rf7 Nd5 28. Kf2 a5 29. h4 Nf4 30. b3 cxb3 31. axb3 Kb4 32. Rf5 Kxb3 33. g3 a4 34. gxf4 a3 35. Rxe5 a2 36. Re3+ Kc4 37. Re4+ Kd5 38. Re5+ Kd6 39. Re1 b4 40. h5 b3 41. f5 b2 42. Re6+ Kd7 43. h6 b1Q 44. h7 a1Q 45. Re5 Qg1+ 46. Ke2 Qad1# 0-1

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2016.12.28"]
[Round "3.3"]
[White "Klaas, Heiko"]
[Black "Haufe, Laurin"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1594"]
[BlackElo "1698"]
[PlyCount "114"]
[EventDate "2016.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Leipzig Gruen Weiss"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 Ngf6 6. Qe2 e6 7. c3 Be7 8. d4 0-0 9. Rd1 Qc7 10. Bg5 Rfe8 11. h3 a6 12. a4 Qc6 13. Nbd2 Rad8 14. e5 dxe5 15. dxe5 Nd5 16. Bxe7 Nxe7 17. Nc4 Nc8 18. Ng5 h6 19. Ne4 Ndb6 20. Ncd6 Nxd6 21. Nxd6 Re7 22. Qc2 Red7 23. b3 Nc8 24. Nc4 Rxd1+ 25. Rxd1 Qc7 26. Re1 Rd5 27. Rd1 Ne7 28. Rxd5 Nxd5 29. Nd6 f6 30. Qg6 Qe7 31. exf6 Nxf6 32. Nc4 Nd5 33. Qg3 Kh7 34. Qd3+ g6 35. Ne5 Qf6 36. Nd7 Qe7 37. Ne5 Qg7 38. Qg3 Qf6 39. c4 Nf4 40. Qe3 Qg5 41. Qe4 Nxh3+ 42. Kh2 Qf4+ 43. Qxf4 Nxf4 44. Nd7 Nd3 45. Nf8+ Kg7 46. Nxe6+ Kf6 47. Nd8 b6 48. Nc6 Ke6 49. g3 Kd7 50. Nb8+ Kc7 51. Nxa6+ Kb7 52. Nxc5+ Nxc5 53. Kh3 Kc7 54. Kg4 Kd7 55. Kf4 Ke6 56. g4 Nxb3 57. g5 h5 0-1

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2016.12.27"]
[Round "2.3"]
[White "Bartels, Simon"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1570"]
[BlackElo "1594"]
[PlyCount "51"]
[EventDate "2016.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Rheydt"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Be2 d5 5. exd5 Nxd5 6. Bb5 Nxc3 7. bxc3 Bg4 8. h3 Bd7 9. 0-0 Bd6 10. Re1 0-0 11. Bxc6 Bxc6 12. Nxe5 Bd5 13. d4 Re8 14. Bf4 Qf6 15. Qg4 Be6 16. Qg3 Rad8 17. Bg5 Qf5 18. Bxd8 Rxd8 19. Qd3 Qg5 20. Qf3 c6 21. c4 f6 22. Nxc6 bxc6 23. Rxe6 Kf7 24. Rae1 c5 25. Qb7+ Kf8 26. Rxd6 1-0

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2016.12.27"]
[Round "1.3"]
[White "Klaas, Heiko"]
[Black "Zeltner, Richard"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1594"]
[BlackElo "1404"]
[PlyCount "49"]
[EventDate "2016.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Erlangen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Nxe4 d5 6. Bxd5 Qxd5 7. d3 Bf5 8. Nc3 Qd8 9. 0-0 Bc5 10. Re1 Bd6 11. Bf4 Bg4 12. Nxe5 Bxd1 13. Nxc6+ Kd7 14. Nxd8 Bxf4 15. Nxb7 Bxc2 16. Re2 Bxd3 17. Nc5+ Kc6 18. Nxd3 Bd6 19. Ne5+ Bxe5 20. Rxe5 Rab8 21. b3 Rhd8 22. Re7 Rd3 23. Rc1 Rbd8 24. h3 Rf8 25. Ne2+ 1-0

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.29"]
[Round "6"]
[White "Brandt, Volker"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1520"]
[BlackElo "1260"]
[PlyCount "87"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. f3 g6 3. e4 Bg7 4. e5 Nd5 5. c4 Nb6 6. Nc3 Nc6 7. Be3 0-0 8. c5 d6 9. cxb6 axb6 10. f4 Bf5 11. Bd3 Bxd3 12. Qxd3 Nb4 13. Qd2 dxe5 14. fxe5 c6 15. a3 Re8 16. Nf3 c5 17. d5 e6 18. d6 Qd7 19. 0-0 Nc6 20. Bf4 Na5 21. Qc2 c4 22. Nd4 f6 23. Qe2 fxe5 24. Bxe5 Bh6 25. Ncb5 Rac8 26. Nc7 Rf8 27. Ndxe6 Rxf1+ 28. Rxf1 Nc6 29. Bg3 Re8 30. Qxc4 Kh8 31. Nxe8 Qxe8 32. Qc3+ Kg8 33. Qc4 Kh8 34. d7 Qxd7 35. Nf8 Qe7 36. Ne6 Be3+ 37. Bf2 Bxf2+ 38. Rxf2 h5 39. Qd5 b5 40. Rf8+ Kh7 41. Ng5+ Kg7 42. Rf7+ Kh6 43. Rxe7 Nxe7 44. Qxb5 1-0

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.29"]
[Round "7"]
[White "Klaas, Heiko"]
[Black "Reiner, Oliver"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "1260"]
[BlackElo "1602"]
[PlyCount "71"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ Bd7 7. a4 c6 8. dxc6 bxc6 9. Ba6 Nd5 10. d4 Be7 11. Nf3 exd4 12. Nxd4 0-0 13. 0-0 Bf6 14. Nf3 Qb6 15. Bd3 Bxb2 16. Bxb2 Qxb2 17. Nbd2 Nc3 18. Bxh7+ Kh8 19. Qe1 Rfe8 20. Be4 f5 21. Ng5 fxe4 22. Qe3 Nd5 23. Qg3 Bf5 24. Qh4+ Kg8 25. Qh5 Nf4 26. Qf7+ Kh8 27. Qxf5 Ne2+ 28. Kh1 Kg8 29. Qf7+ Kh8 30. Qh5+ Kg8 31. Qxe2 Qxc2 32. Qh5 Qxd2 33. Rad1 Qc3 34. Rd7 Qc4 35. Qh7+ Kf8 36. Qh8+ 1-0

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.28"]
[Round "4"]
[White "Falke, Antje"]
[Black "Klaas, Heiko"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "852"]
[BlackElo "1260"]
[PlyCount "90"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Nf3 Nf6 4. d3 Bd7 5. Bd2 e5 6. Be2 Be7 7. 0-0 0-0 8. Re1 Be6 9. Ng5 Bd7 10. Bf3 h6 11. Nh3 Nc6 12. Nd5 Nd4 13. c3 Nxf3+ 14. Qxf3 Bg4 15. Nxf6+ Bxf6 16. Qxg4 Rc8 17. Bxh6 Kh8 18. Bxg7+ Bxg7 19. Qh5+ Kg8 20. Ng5 Re8 21. Qxf7+ Kh8 22. Ne6 Rxe6 23. Qxe6 Qf8 24. Re3 Kh7 25. Rh3+ Bh6 26. Qg4 Rc7 27. Re1 Qf6 28. Rf3 Qd8 29. Rg3 Rg7 30. Qh3 Rf7 31. Qh5 Rf6 32. Qg4 a6 33. Rf1 Qe8 34. Qh4 Rf4 35. Qh3 b5 36. Re1 Rf7 37. Ree3 c4 38. dxc4 bxc4 39. Ref3 Rf4 40. Rxf4 exf4 41. Rg4 Qxe4 42. g3 Qe1+ 43. Kg2 Qe4+ 44. Kf1 Qh1+ 45. Ke2 f3# 0-1

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.28"]
[Round "3"]
[White "Klaas, Heiko"]
[Black "Bigalke, Andre"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1260"]
[BlackElo "2047"]
[PlyCount "86"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 b5 8. f3 Nbd7 9. Qd2 Bb7 10. g4 h6 11. Bg2 b4 12. Ne2 a5 13. Nbc1 d5 14. exd5 Nxd5 15. Bf2 N5b6 16. Nd3 Nc4 17. Qd1 g6 18. Ng3 Rc8 19. Qe2 Bg7 20. Ne4 Qe7 21. 0-0 0-0 22. c3 Bxe4 23. Qxe4 Nd2 24. Qe2 Nxf1 25. Bxf1 bxc3 26. bxc3 Rxc3 27. Rd1 Rfc8 28. Qd2 Nf8 29. Qe3 Ne6 30. Be1 Ra3 31. Qe2 Nd4 32. Qe4 Qf6 33. Bg2 Rxa2 34. Qb7 Rcc2 35. Nf2 a4 36. Rb1 Nb3 37. Qb5 Kh7 38. Qd3 Nc5 39. Qe3 Bf8 40. Rd1 Kg7 41. Bd2 Kh7 42. Ne4 Nxe4 43. fxe4 Bc5 0-1

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.28"]
[Round "5"]
[White "Klaas, Heiko"]
[Black "Trapp, Hannes"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1260"]
[BlackElo "1564"]
[PlyCount "51"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 0-0 9. 0-0 d6 10. Re1 Bg4 11. Qc2 Bxf3 12. Nxf3 Re8 13. Rad1 Re7 14. e5 dxe5 15. dxe5 Nd7 16. Ng5 g6 17. e6 fxe6 18. Nxe6 Rxe6 19. Bxe6+ Kf8 20. Rxd7 Qg5 21. Rf7+ Ke8 22. Bb3+ Ne5 23. f4 Rd8 24. fxg5 Rd6 25. Rxe5+ Kd8 26. Qxc7# 1-0

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.27"]
[Round "1"]
[White "Klaas, Heiko"]
[Black "Zippert, Georg"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1260"]
[BlackElo "1840"]
[PlyCount "86"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d6 9. 0-0 0-0 10. Re1 Bg4 11. Qc2 d5 12. exd5 Nxd5 13. Qe4 Nf6 14. Qf4 Bh5 15. Bd3 Nb4 16. Qf5 Bg6 17. Qb5 Nxd3 18. Red1 Qd5 19. Qxd5 Nxd5 20. Nc4 Rfe8 21. Kf1 N3f4 22. Nfe5 f6 23. Nxg6 Nxg6 24. Rac1 Re7 25. Rd2 Rae8 26. Rdc2 Ngf4 27. Ne3 Nxe3+ 28. fxe3 Nd5 29. Rc5 c6 30. a3 Rxe3 31. R5c2 Rd3 32. Kf2 Rxd4 33. Kg1 Rde4 34. Kf2 Nf4 35. Rd1 Nd5 36. Rcd2 R8e5 37. h3 Rf4+ 38. Kg3 Re3+ 39. Kh2 Rfe4 40. Kg1 Re2 41. Rd3 Rxb2 42. Kf1 Ne3+ 43. Rxe3 Rxe3 0-1

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.27"]
[Round "2"]
[White "Popist, Florian"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1654"]
[BlackElo "1260"]
[PlyCount "85"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. Bc4 Nf6 7. Nc3 Be7 8. f3 0-0 9. Be3 c5 10. Qd2 Be6 11. Bd5 Qc7 12. 0-0 Rab8 13. a4 a6 14. a5 b5 15. axb6 Qxb6 16. b3 Rfe8 17. Qd3 Bc8 18. Qc4 Rf8 19. Qd3 Qa7 20. Bc4 Rb6 21. Ra2 Bb7 22. Rfa1 Ra8 23. Bf4 Nh5 24. Bg3 Nxg3 25. hxg3 Bf6 26. Ra5 Bc8 27. R1a2 Qb7 28. Bd5 Qa7 29. Bxa8 Qxa8 30. Nd5 Rc6 31. Nxf6+ gxf6 32. Qd5 Bb7 33. Qf5 Qa7 34. c4 Bc8 35. Qxf6 Qd7 36. Rd2 d5 37. Qg5+ Rg6 38. Qe5 Qd8 39. Ra1 Rg5 40. Rxd5 Bd7 41. Qxg5+ Qxg5 42. Rxg5+ Kf8 43. Rxa6 1-0

[Event "GER-chT U10"]
[Site "Magdeburg"]
[Date "2014.12.29"]
[Round "7.2"]
[White "Haufe, Laurin"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1413"]
[BlackElo "1107"]
[PlyCount "101"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Leipzig Gruen Weiss"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Be2 d6 8. 0-0 0-0 9. a4 a6 10. b4 Bxd4 11. Bxd4 Nxd4 12. Qxd4 Qg6 13. Nd2 Nc6 14. Qe3 Re8 15. b5 axb5 16. Bxb5 d5 17. Bxc6 bxc6 18. f3 Rb8 19. a5 Bh3 20. Qe2 dxe4 21. fxe4 Bg4 22. Qe3 Rbd8 23. a6 f6 24. a7 Ra8 25. c4 f5 26. e5 Red8 27. Rfb1 f4 28. Qf2 Bf5 29. Rb7 c5 30. Qxc5 Be4 31. Nxe4 Qxe4 32. Rxc7 Qc2 33. Rf1 Qe2 34. h3 Rf8 35. Qe7 Qe3+ 36. Kh1 Qg3 37. Rf3 Qg6 38. c5 Rae8 39. Rxf4 Qg3 40. Rxf8+ Rxf8 41. Qe6+ Kh8 42. Rc8 Qe1+ 43. Kh2 Qf2 44. Rxf8+ Qxf8 45. Qg4 Qe8 46. Qf4 g6 47. Qf6+ Kg8 48. e6 h5 49. Qf7+ Qxf7 50. exf7+ Kxf7 51. a8Q 1-0

[Event "GER-chT U10"]
[Site "Magdeburg"]
[Date "2014.12.29"]
[Round "6.2"]
[White "Toval, David"]
[Black "Klaas, Heiko"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "1149"]
[BlackElo "1107"]
[PlyCount "120"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Muenster"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Bc5 6. c3 b5 7. Bb3 0-0 8. Re1 Bb7 9. d4 exd4 10. cxd4 Bb6 11. e5 Ne8 12. d5 Ne7 13. Bg5 Bc5 14. Bh4 d6 15. Bc2 dxe5 16. Rxe5 f6 17. Qd3 Ng6 18. Nc3 Nd6 19. Rh5 Qe8 20. Re1 Qf7 21. Ne2 f5 22. Ng5 Qxd5 23. Qxd5+ Bxd5 24. Nxh7 Nxh4 25. Nxf8 Nxg2 26. Rd1 Bf3 27. Bxf5 Bxh5 28. Kxg2 Bxe2 29. Rd5 Rxf8 30. Be6+ Kh8 31. Re5 Rxf2+ 32. Kg3 Rf3+ 33. Kg2 Rf6 34. Rxe2 Rg6+ 35. Kf3 Rf6+ 36. Kg4 a5 37. Re5 Bb6 38. Bb3 a4 39. Bc2 Bd4 40. Re7 Kg8 41. Rxc7 Bxb2 42. Rd7 Kf8 43. Rd8+ Ke7 44. Rg8 Ke6 45. Rxg7 Rf4+ 46. Kxf4 Bxg7 47. h4 Nc4 48. Bf5+ Kf6 49. Bd3 Bh6+ 50. Ke4 Nd6+ 51. Kd5 Bf8 52. Kc5 Be7 53. Bxb5 Nxb5+ 54. Kxb5 a3 55. Kc4 Kg6 56. Kb3 Kh5 57. Kc2 Kxh4 58. Kb1 Kg3 59. Ka1 Kf2 60. Kb1 Ke2 1/2-1/2

[Event "GER-chT U10"]
[Site "Magdeburg"]
[Date "2014.12.28"]
[Round "4.2"]
[White "Bartels, Simon"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1235"]
[BlackElo "1107"]
[PlyCount "31"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Rheydt"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Be2 Bc5 5. Nxe5 Nxe5 6. d4 Bxd4 7. Qxd4 Nc6 8. Qd1 0-0 9. 0-0 d6 10. Bg5 h6 11. Bh4 Ne5 12. f4 Ng6 13. Bg3 c6 14. Qd2 d5 15. Rad1 Qd6 16. Bf2 1-0

[Event "GER-chT U10"]
[Site "Magdeburg"]
[Date "2014.12.28"]
[Round "3.2"]
[White "Klaas, Heiko"]
[Black "Grunert, Friedrich"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1107"]
[BlackElo "1320"]
[PlyCount "120"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Muenchen Suedost"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 Bd7 7. Bc2 cxd4 8. cxd4 Nh6 9. 0-0 Rc8 10. a3 Qc7 11. b4 Nxb4 12. axb4 Qxc2 13. Qxc2 Rxc2 14. Rxa7 Nf5 15. Rxb7 Be7 16. b5 0-0 17. Rxd7 Rfc8 18. Bf4 Rb8 19. Ra7 h6 20. h3 Rb2 21. Nc3 Bb4 22. Rc1 Rc8 23. Na2 Rxc1+ 24. Nxc1 Bc3 25. Rc7 Bxd4 26. Nxd4 Nxd4 27. Nd3 Rb1+ 28. Kh2 Nxb5 29. Rb7 Nc3 30. Rxb1 Nxb1 31. g4 Nc3 32. f3 Ne2 33. Bd2 Nd4 34. Kg2 Nb3 35. Bc3 Kf8 36. Kf2 Ke7 37. Ke2 Kd7 38. Kd1 Kc6 39. Kc2 Nc5 40. Nxc5 Kxc5 41. Kd3 Kc6 42. f4 Kd7 43. h4 Ke7 44. Ke3 Kf8 45. Kf3 Kg8 46. h5 Kh7 47. g5 hxg5 48. fxg5 Kg8 49. Kf4 Kh7 50. Bd2 Kg8 51. Kg4 Kh7 52. Kg3 g6 53. hxg6+ fxg6 54. Kg4 Kg7 55. Kf3 Kf8 56. Ke3 Ke7 57. Kd4 Kf8 58. Kc5 Ke7 59. Bb4 Kd7 60. Kb6 d4 1-0

[Event "GER-chT U10"]
[Site "Magdeburg"]
[Date "2014.12.27"]
[Round "2.2"]
[White "Klaas, Heiko"]
[Black "Koeppen, Cedric Louis"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1107"]
[BlackElo "930"]
[PlyCount "33"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Koenigsspringer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Nxe4 d5 6. Bxd5 Qxd5 7. d3 Bg4 8. h3 Bxf3 9. Qxf3 Nd4 10. Nf6+ gxf6 11. Qxd5 Nxc2+ 12. Kd1 Nxa1 13. Qb5+ c6 14. Qxb7 Rd8 15. Qxc6+ Ke7 16. b3 Bg7 17. Ba3+ 1-0

[Event "GER-chT U10"]
[Site "Magdeburg"]
[Date "2014.12.27"]
[Round "1.1"]
[White "Klaas, Heiko"]
[Black "Woestmann, Benjamin"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1107"]
[BlackElo "600"]
[PlyCount "56"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Hamburger SK II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 h6 5. Nc3 Nf6 6. Be3 Bb6 7. d4 d6 8. dxe5 dxe5 9. Qxd8+ Nxd8 10. Nxe5 0-0 11. 0-0 Re8 12. Bxb6 axb6 13. Rad1 Be6 14. Bb3 Bxb3 15. axb3 Rxe5 16. f3 Nc6 17. Rfe1 Nb4 18. f4 Rh5 19. Rd2 Rha5 20. e5 Ne8 21. Na4 b5 22. Nc5 b6 23. Ne4 Ra2 24. c3 Nc6 25. Rb1 Ra1 26. Rxa1 Rxa1+ 27. Kf2 Ra8 28. Rd5 Ra2 1/2-1/2

[Event "GER-chT U10"]
[Site "Magdeburg"]
[Date "2013.12.28"]
[Round "5.4"]
[White "Klaas, Heiko"]
[Black "Breitzmann, Malte"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "600"]
[BlackElo "1093"]
[PlyCount "104"]
[EventDate "2013.12.27"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Berlin Empor"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Nb3 Nf6 7. Be3 d6 8. f3 0-0 9. Qd2 Bd7 10. 0-0-0 Ne5 11. Be2 Rc8 12. g4 a6 13. h4 b5 14. h5 b4 15. Nb1 Qc7 16. Bxa6 Ra8 17. Qe2 Nxf3 18. Bd3 Ne5 19. Qd2 Rfc8 20. hxg6 fxg6 21. g5 Nfg4 22. Bd4 Nxd3+ 23. Qxd3 Bxd4 24. Nxd4 Nf2 25. Qd2 Nxd1 26. Qxd1 e5 27. Nb3 Rxa2 28. Qd2 Ba4 29. Rf1 Bxb3 30. Rf2 Ra5 31. Kd1 d5 32. Qxb4 Bxc2+ 33. Ke1 Bxb1 34. exd5 Qc1+ 35. Ke2 Qc2+ 36. Kf1 Qc4+ 37. Qxc4 Rxc4 38. d6 Rd4 39. b4 Ra6 40. Rb2 Bd3+ 41. Kg1 Bb5 42. d7 Rxd7 43. Kf2 Rad6 44. Ke3 Rd3+ 45. Ke4 Kf7 46. Kxe5 Re3+ 47. Kf4 Rdd3 48. Rf2 Ke6 49. Rh2 Rf3+ 50. Kg4 Ke5 51. Rh3 Bd7+ 52. Kh4 Rxh3# 0-1

[Event "GER-chT U10"]
[Site "Magdeburg"]
[Date "2013.12.28"]
[Round "3.4"]
[White "Klaas, Heiko"]
[Black "Darowski, Janek Wilhelm"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "600"]
[BlackElo "971"]
[PlyCount "55"]
[EventDate "2013.12.27"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Ruedersdorf"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. Bc4 Bf5 6. d3 e6 7. Bf4 Bc5 8. 0-0 c6 9. Ng5 Qd8 10. a3 0-0 11. b4 Bd4 12. Bd2 Nbd7 13. Rb1 Ne5 14. h3 h6 15. Nf3 Qd7 16. Re1 Nxf3+ 17. Qxf3 Qd6 18. Ne2 Rad8 19. Nxd4 Qxd4 20. Qg3 Rfe8 21. Bxh6 g6 22. Bg5 Rd7 23. Bxf6 Qxf6 24. Qe5 Qh4 25. b5 Ree7 26. bxc6 bxc6 27. Rb8+ Kh7 28. Rh8# 1-0

[Event "GER-chT U10"]
[Site "Magdeburg"]
[Date "2013.12.28"]
[Round "4.4"]
[White "Wehner, Tobias"]
[Black "Klaas, Heiko"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "992"]
[BlackElo "600"]
[PlyCount "59"]
[EventDate "2013.12.27"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Dresden"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d6 9. 0-0 Bg4 10. Bb5 0-0 11. Rc1 Nb4 12. Qb3 Na6 13. Bd3 d5 14. e5 Ne4 15. Bxe4 dxe4 16. Nxe4 Bxf3 17. Qxf3 Qxd4 18. Nc3 Qxe5 19. Qxb7 Nc5 20. Qb5 Rab8 21. Qa5 a6 22. Rfe1 Qg5 23. b4 Rb5 24. Nxb5 Nd3 25. Nxc7 Qxa5 26. bxa5 Nxc1 27. Rxc1 Rc8 28. Kf1 Kf8 29. Ne6+ fxe6 30. Rxc8+ 1-0

