[Event "Apelnstedt op"]
[Site "Apelnstedt"]
[Date "2025.06.29"]
[Round "7"]
[White "Clasen, Dirk"]
[Black "Goertzen, Simon"]
[Result "0-1"]
[ECO "D32"]
[BlackElo "1824"]
[PlyCount "44"]
[EventDate "2025.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 c5 5. cxd5 exd5 6. Bg5 Be7 7. e3 0-0 8. Be2 Nc6 9. 0-0 c4 10. Ne5 Be6 11. Nxc6 bxc6 12. b3 c5 13. bxc4 cxd4 14. exd4 dxc4 15. Rb1 Rb8 16. Qd2 Bb4 17. Qe3 Bxc3 18. Bxf6 Qxf6 19. Qxc3 Bd5 20. Rfc1 Rxb1 21. Rxb1 Qg6 22. Qc2 Ra8 0-1

[Event "Apelnstedt op"]
[Site "Apelnstedt"]
[Date "2025.06.29"]
[Round "5"]
[White "Clasen, Dirk"]
[Black "Haverlandt, Jannes"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "31"]
[EventDate "2025.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. g3 Nc6 4. Bg2 cxd4 5. Nxd4 d5 6. 0-0 e5 7. Nxc6 bxc6 8. c4 Be7 9. Nc3 Be6 10. cxd5 Nxd5 11. Qc2 0-0 12. Rd1 Qa5 13. Ne4 Rac8 14. Bd2 Qb6 15. Ng5 Bc5 16. Qxh7# 1-0

[Event "Apelnstedt op"]
[Site "Apelnstedt"]
[Date "2025.06.29"]
[Round "3"]
[White "Clasen, Dirk"]
[Black "Kopmann, Rene"]
[Result "0-1"]
[ECO "D78"]
[PlyCount "92"]
[EventDate "2025.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 d5 4. g3 Bg7 5. Bg2 0-0 6. 0-0 c6 7. Nc3 dxc4 8. Ne5 Be6 9. Bf4 Nbd7 10. Qd2 Nd5 11. Bh6 Nxc3 12. bxc3 Nxe5 13. dxe5 Qxd2 14. Bxd2 Bxe5 15. Rab1 Rfb8 16. a4 Bd5 17. e4 Be6 18. f4 Bc7 19. Be3 b5 20. axb5 Rxb5 21. Kf2 Rab8 22. Rxb5 cxb5 23. Bxa7 Ra8 24. Bd4 Ra2+ 25. Kf3 f5 26. Rf2 fxe4+ 27. Kxe4 Rxf2 28. Bxf2 Kf7 29. Bd4 Bd6 30. Ke3 b4 31. cxb4 Bxb4 32. Be4 Ke8 33. Bc6+ Kf7 34. Bb5 Bd5 35. g4 Ke6 36. h4 Be1 37. h5 gxh5 38. gxh5 Kf5 39. Bd7+ e6 40. Be8 c3 41. Ke2 Bd2 42. Ba4 Kxf4 43. Bc2 h6 44. Bg1 Kg4 45. Bg6 Bc4+ 46. Kd1 e5 0-1

[Event "Apelnstedt op"]
[Site "Apelnstedt"]
[Date "2025.06.29"]
[Round "1"]
[White "Clasen, Dirk"]
[Black "Panskus, Klaus"]
[Result "1/2-1/2"]
[ECO "A82"]
[PlyCount "59"]
[EventDate "2025.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]

1. d4 f5 2. e4 d6 3. Nc3 g6 4. Nf3 Bg7 5. Bd3 e6 6. 0-0 Ne7 7. Qe2 0-0 8. Bg5 Qe8 9. Rfe1 Nbc6 10. exf5 Nxd4 11. Nxd4 Bxd4 12. Nb5 Bb6 13. Be3 Ba5 14. b4 a6 15. Nxd6 cxd6 16. bxa5 e5 17. fxg6 hxg6 18. Bh6 Rf6 19. Rab1 Kh7 20. Bg5 Rf7 21. Qh5+ Kg7 22. Qh6+ Kg8 23. Bxg6 Nxg6 24. Qxg6+ Kf8 25. Qh6+ Kg8 26. Rb3 Rh7 27. Qf6 Qe6 28. Qd8+ Kg7 29. Rg3 Kf7 30. Ree3 1/2-1/2

[Event "Apelnstedt op"]
[Site "Apelnstedt"]
[Date "2025.06.29"]
[Round "8"]
[White "Lammers, Frank"]
[Black "Clasen, Dirk"]
[Result "0-1"]
[ECO "A17"]
[PlyCount "56"]
[EventDate "2025.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. cxd5 exd5 5. d4 c6 6. Bg2 Bf5 7. Nf3 Bd6 8. 0-0 0-0 9. a3 a5 10. Nh4 Bd7 11. Rb1 Na6 12. Bd2 Re8 13. Re1 Ne4 14. Nxe4 dxe4 15. e3 Nc7 16. Bf1 Be6 17. b4 axb4 18. Bxb4 Bxb4 19. axb4 Nd5 20. Qc2 Nf6 21. b5 Bd5 22. bxc6 bxc6 23. Ng2 g5 24. Bc4 Qd7 25. Rb2 Qh3 26. Bxd5 cxd5 27. Kf1 Qxh2 28. f4 Qh1+ 0-1

[Event "Apelnstedt op"]
[Site "Apelnstedt"]
[Date "2025.06.29"]
[Round "4"]
[White "Oberesch, Tjark"]
[Black "Clasen, Dirk"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "1598"]
[PlyCount "88"]
[EventDate "2025.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d5 5. 0-0 0-0 6. c4 c6 7. Nc3 Nbd7 8. Ne2 e6 9. Ne5 dxc4 10. Nxc4 Nb6 11. Bd2 Nxc4 12. Bxc4 b6 13. Bb4 Re8 14. Nc3 a5 15. Ba3 b5 16. Nxb5 cxb5 17. Bxb5 Bd7 18. Qa4 Bxb5 19. Qxb5 Qd5 20. Qc5 Bf8 21. Qxd5 Nxd5 22. Bxf8 Kxf8 23. a3 Rab8 24. Rab1 Rec8 25. g3 Rc2 26. b3 Rc3 27. e4 Nf6 28. e5 Nd5 29. b4 axb4 30. axb4 Rc4 31. Rfd1 Rbxb4 32. Rxb4 Rxb4 33. Kg2 Ke7 34. Rd2 f6 35. f4 Ne3+ 36. Kf3 Rb3 37. Ke4 f5+ 38. Kf3 Nf1+ 39. Ke2 Nxd2 40. Kxd2 Rb2+ 41. Kc3 Rxh2 42. Kc4 Rg2 43. d5 exd5+ 44. Kxd5 Rxg3 0-1

[Event "Apelnstedt op"]
[Site "Apelnstedt"]
[Date "2025.06.29"]
[Round "2"]
[White "Roy, Amritesh"]
[Black "Clasen, Dirk"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2018"]
[PlyCount "107"]
[EventDate "2025.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. Qd2 c6 5. f3 Nbd7 6. e4 dxe4 7. fxe4 Nb6 8. Nf3 Bg4 9. Be2 Bg7 10. 0-0-0 e6 11. Bh6 Bxh6 12. Qxh6 Qe7 13. Qg5 Bxf3 14. Bxf3 h6 15. Qa5 Nc4 16. Qa4 Nb6 17. Qb3 0-0-0 18. e5 Nfd5 19. Ne4 Kb8 20. Nd6 f5 21. c4 Nf4 22. g3 Nh3 23. Rd2 Ng5 24. Bg2 Nf7 25. a4 Nxd6 26. exd6 Rxd6 27. c5 Rd7 28. cxb6 axb6 29. Qxb6 e5 30. d5 e4 31. dxc6 Rxd2 32. Kxd2 Rd8+ 33. Kc1 Rc8 34. Kb1 Rxc6 35. Qb3 Qc7 36. Rd1 Ka7 37. Bf1 g5 38. Bb5 Rc5 39. Qg8 f4 40. Rd8 Rc1+ 41. Ka2 e3 42. Ra8+ Kb6 43. Qe6+ Rc6 44. Bxc6 Qxc6 45. a5+ Kb5 46. Qf5+ Ka4 47. b3+ Kb4 48. Qf8+ Kb5 49. Qf5+ Kb4 50. gxf4 gxf4 51. Qxf4+ Kb5 52. Qe5+ Kb4 53. Qd4+ Kb5 54. Qa4+ 1-0

[Event "Apelnstedt op"]
[Site "Apelnstedt"]
[Date "2025.06.29"]
[Round "9"]
[White "Steiner, Daniel1"]
[Black "Clasen, Dirk"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1989"]
[PlyCount "53"]
[EventDate "2025.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Qd2 Nxe3 8. Qxe3 e6 9. Be2 Qb6 10. 0-0-0 Be7 11. g3 Bd7 12. f4 Nc6 13. Nf5 Qxe3+ 14. Nxe3 0-0-0 15. Nc4 Kc7 16. Bf3 Na7 17. Ne3 Bc6 18. Rhf1 Bf6 19. Ne2 b6 20. Ng4 Be7 21. Nd4 Bb7 22. Kb1 Nc6 23. c3 Nxd4 24. cxd4 Kd7 25. Ne3 Rc8 26. d5 Bf6 27. e5 1-0

[Event "Apelnstedt op"]
[Site "Apelnstedt"]
[Date "2025.06.29"]
[Round "6"]
[White "Tanukusuma, Kyllian Gotthold"]
[Black "Clasen, Dirk"]
[Result "1/2-1/2"]
[ECO "A02"]
[PlyCount "157"]
[EventDate "2025.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]

1. f4 Nf6 2. Nf3 b6 3. e3 e6 4. Nc3 Bb7 5. Bc4 Be7 6. 0-0 0-0 7. d3 d5 8. Bb3 Nbd7 9. Ne5 Nc5 10. a3 Nxb3 11. cxb3 d4 12. Ne2 dxe3 13. Bxe3 Qd5 14. Nf3 Rfd8 15. Nc1 Ng4 16. Bf2 Nxf2 17. Kxf2 Bc5+ 18. Kg3 Rac8 19. h3 Be3 20. Re1 Bxc1 21. Rxc1 Qxd3 22. Qxd3 Rxd3 23. b4 Bxf3 24. gxf3 Kf8 25. Rcd1 Rxd1 26. Rxd1 Ke7 27. Kg4 c5 28. Rc1 Kd6 29. f5 exf5+ 30. Kxf5 Rc7 31. b5 Kd5 32. b3 c4 33. bxc4+ Rxc4 34. Rd1+ Kc5 35. Rd7 Kxb5 36. Rxa7 Rc5+ 37. Kg4 h5+ 38. Kg3 Rf5 39. a4+ Kb4 40. Ra6 g6 41. Rxb6+ Kxa4 42. Ra6+ Kb5 43. Ra7 Kc6 44. Ra6+ Kd7 45. Ra7+ Ke6 46. Ra6+ Ke7 47. Rc6 Kf8 48. h4 Kg7 49. Rc7 Ra5 50. Rb7 Ra6 51. Rc7 Kf6 52. Rc5 Ke6 53. Rb5 f6 54. Kf4 Ra4+ 55. Kg3 Rd4 56. Rb6+ Rd6 57. Rb5 Rd5 58. Rb6+ Kf5 59. Rb4 g5 60. Rb8 Rd4 61. hxg5 fxg5 62. Rf8+ Kg6 63. Rg8+ Kf6 64. Rf8+ Kg7 65. Rf5 h4+ 66. Kh3 Kg6 67. Rf8 Rd3 68. Kg4 Rd4+ 69. Kh3 Ra4 70. Rg8+ Kf6 71. Rf8+ Kg7 72. Rf5 Kg6 73. Rf8 Ra1 74. Rg8+ Kf6 75. Rf8+ Kg7 76. Rf5 Kg6 77. Rf8 Rh1+ 78. Kg2 Ra1 79. Kh3 1/2-1/2

[Event "Oberliga Nord W 2324"]
[Site "Germany"]
[Date "2024.04.28"]
[Round "9.8"]
[White "Jacobi, Felix Hagen"]
[Black "Clasen, Dirk"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2053"]
[BlackElo "1950"]
[PlyCount "72"]
[EventDate "2023.10.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Hameln"]
[BlackTeam "Braunschweig Gliesmarode"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Ne2 Nge7 7. Ng3 Be6 8. Nh5 Kf8 9. Qc2 h6 10. Be3 Qd7 11. Nd2 Bf5 12. h3 Bxd3 13. Qxd3 Qf5 14. Qxf5 Nxf5 15. 0-0 f6 16. Nf4 Nxe3 17. fxe3 Bxf4 18. Rxf4 Kf7 19. e4 dxe4 20. Nxe4 Rhe8 21. Raf1 Re7 22. g4 Rae8 23. Ng3 Re1 24. h4 Rxf1+ 25. Kxf1 Ne7 26. g5 Nd5 27. Rf2 Ne3+ 28. Kg1 hxg5 29. hxg5 Ng4 30. Rf4 Ne3 31. gxf6 gxf6 32. Ne4 Nd5 33. Rh4 f5 34. Nc5 Kg6 35. Kf2 b6 36. Nd3 Nf6 1/2-1/2

[Event "Oberliga Nord W 2324"]
[Site "Germany"]
[Date "2023.12.03"]
[Round "3.7"]
[White "Clasen, Dirk"]
[Black "Bierenbroodspot, Paul"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "1950"]
[BlackElo "2101"]
[PlyCount "126"]
[EventDate "2023.10.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Braunschweig Gliesmarode"]
[BlackTeam "Nordhorn Blanke"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. cxd5 exd5 5. Qc2 g6 6. Nf3 Bf5 7. Qb3 Qb6 8. Qxb6 axb6 9. Bf4 b5 10. e3 b4 11. Nb1 Nd7 12. Nbd2 Ngf6 13. Be2 Nh5 14. Bg3 Nxg3 15. hxg3 Nf6 16. Ne5 Bd6 17. Nd3 h5 18. Nb3 b6 19. Nf4 Kd7 20. Bd3 Ne4 21. Be2 Rae8 22. Nd2 Nf6 23. Nf3 Ne4 24. Nd2 Ra8 25. Nb3 Rhe8 26. 0-0 Ra7 27. Rfd1 Rc8 28. Nc1 Nf6 29. Bd3 Bxd3 30. Rxd3 g5 31. Nfe2 c5 32. dxc5 bxc5 33. b3 Kc6 34. Rb1 Ne4 35. Rb2 f5 36. Rc2 Be5 37. Kf1 Nc3 38. Rdd2 c4 39. bxc4 dxc4 40. Nd4+ Bxd4 41. Rxd4 Kc5 42. Ke1 Rc6 43. Rcd2 Re6 44. Rd7 Raa6 45. Rf7 Re5 46. Rc7+ Rc6 47. Ra7 f4 48. gxf4 gxf4 49. Ra5+ Nb5 50. Re2 f3 51. gxf3 Rg5 52. Kd2 c3+ 53. Kd3 Rd5+ 54. Ke4 Kc4 55. Ra8 Re6+ 56. Kf4 Rf6+ 57. Kg3 Rg6+ 58. Kh2 Rd1 59. Rc8+ Kd5 60. Nb3 Rdg1 61. Rc5+ Kd6 62. Rxb5 R6g2+ 63. Kh3 Rg8 1/2-1/2

[Event "Oberliga Nord W 2324"]
[Site "Germany"]
[Date "2023.11.19"]
[Round "2.8"]
[White "Clasen, Dirk"]
[Black "Diederichsen, Detlev"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "1950"]
[BlackElo "2152"]
[PlyCount "59"]
[EventDate "2023.10.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Braunschweig Gliesmarode"]
[BlackTeam "Werder Bremen III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 0-0 6. Qc2 c5 7. dxc5 Na6 8. e3 Nb4 9. Qb3 Bxc5 10. a3 dxc4 11. Bxc4 Nc6 12. Be2 Qe7 13. Bg5 h6 14. Bh4 Rd8 15. 0-0 Qf8 16. Bxf6 gxf6 17. Rfd1 Rxd1+ 18. Rxd1 Rb8 19. Bb5 Ne5 20. Nxe5 fxe5 21. Ne4 Be7 22. Qc3 f6 23. Qc7 Ra8 24. Nd6 Bd8 25. Qc2 Be7 26. Qg6+ Qg7 27. Qe8+ Qf8 28. Qg6+ Qg7 29. Qc2 Qf8 30. Qg6+ 1/2-1/2

[Event "Oberliga Nord W 0910"]
[Site "Germany"]
[Date "2009.11.29"]
[Round "3.7"]
[White "Van der Veen, Jan"]
[Black "Clasen, Dirk"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2144"]
[PlyCount "59"]
[EventDate "2009.10.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Nordhorn Blanke"]
[BlackTeam "Braunschweig Gliesmarode"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 g6 5. Bc4 e6 6. 0-0 Bg7 7. d3 Nge7 8. Qe1 0-0 9. f5 gxf5 10. Qh4 Ng6 11. Qh5 f4 12. g3 Na5 13. gxf4 Nxc4 14. dxc4 f6 15. Be3 Qe7 16. Rae1 Bd7 17. f5 Ne5 18. b3 Rf7 19. Kh1 Kh8 20. Nxe5 fxe5 21. fxe6 Bxe6 22. Nd5 Bxd5 23. cxd5 Raf8 24. Rxf7 Rxf7 25. Rg1 Qf8 26. Qg4 Rf3 27. Rg3 Rf1+ 28. Rg1 Rf3 29. Rg3 Rf1+ 30. Rg1 1/2-1/2

