[Event "Leiden LCT op-B 09th"]
[Site "Leiden"]
[Date "2015.07.25"]
[Round "8"]
[White "Kohlbeck, Ton"]
[Black "De Jong, Sebastiaan"]
[Result "0-1"]
[ECO "D60"]
[WhiteElo "2008"]
[PlyCount "34"]
[EventDate "2015.07.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. c5 0-0 7. Nf3 Ne4 8. Nxe4 dxe4 9. Bxe7 Qxe7 10. Nd2 f5 11. Bc4 Kh8 12. 0-0 e5 13. Nb3 f4 14. dxe5 Nxe5 15. Rc1 f3 16. Nd2 Qh4 17. Re1 Ng4 0-1

[Event "Leiden LCT op-B 09th"]
[Site "Leiden"]
[Date "2015.07.24"]
[Round "7"]
[White "Hilarius, Sander"]
[Black "Kohlbeck, Ton"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "1935"]
[BlackElo "2008"]
[PlyCount "73"]
[EventDate "2015.07.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. g3 d6 7. Bg2 g6 8. b3 Bg7 9. Bb2 0-0 10. Nh3 Qb6 11. Bc3 Nbd7 12. 0-0 Rfc8 13. Re1 c4 14. b4 Ng4 15. a3 Ra7 16. Bxg7 Kxg7 17. Nc3 Nde5 18. Qd2 Rca8 19. Ra2 Bc8 20. Rea1 Nh6 21. Ng5 Nf5 22. e3 Nd3 23. Bf1 Ne5 24. Be2 Bd7 25. Nf3 Nxf3+ 26. Bxf3 h5 27. Be2 Rc7 28. b5 e5 29. dxe6 fxe6 30. a4 Ra5 31. Rc2 d5 32. g4 hxg4 33. Bxg4 d4 34. Bxf5 dxc3 35. Qxc3+ Kf7 36. Bg4 Qc5 37. Qxa5 1-0

[Event "Leiden LCT op-B 09th"]
[Site "Leiden"]
[Date "2015.07.24"]
[Round "6"]
[White "Kohlbeck, Ton"]
[Black "Bulthuis, Jelle"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "2008"]
[BlackElo "1863"]
[PlyCount "50"]
[EventDate "2015.07.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d5 5. 0-0 0-0 6. Nbd2 b6 7. Qe2 Bb7 8. c3 Nbd7 9. Ne1 e5 10. dxe5 Nxe5 11. Bc2 Re8 12. Ndf3 Nc4 13. Nd3 Qe7 14. Ba4 c6 15. Nd2 Nd6 16. Re1 Nd7 17. Rb1 c5 18. Nf4 a6 19. Bb3 Nf6 20. Nf1 Rad8 21. Rd1 d4 22. cxd4 g5 23. dxc5 bxc5 24. Nd5 Qe4 25. Bc2 Qe5 1/2-1/2

[Event "Leiden LCT op-B 09th"]
[Site "Leiden"]
[Date "2015.07.21"]
[Round "5"]
[White "Mensing, Adrian"]
[Black "Kohlbeck, Ton"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1883"]
[BlackElo "2008"]
[PlyCount "72"]
[EventDate "2015.07.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 Nc6 3. g3 g6 4. Bg2 Bg7 5. c3 e5 6. d3 Nge7 7. Be3 d6 8. Nd2 0-0 9. 0-0 b5 10. Qc2 Rb8 11. f4 b4 12. Nc4 Na5 13. Nxa5 Qxa5 14. fxe5 bxc3 15. bxc3 dxe5 16. Nc1 Qc7 17. c4 Nc6 18. Bxc5 Nd4 19. Bxd4 exd4 20. Ne2 g5 21. Rab1 Bg4 22. Rb3 h5 23. Bf3 Bh3 24. Rfb1 h4 25. Qd2 Rxb3 26. Rxb3 Qe7 27. Rb5 Bh6 28. Nxd4 hxg3 29. Nf5 gxh2+ 30. Qxh2 Bxf5 31. Qxh6 Bg6 32. Qxg5 Qd6 33. Bh5 Qxd3 34. Bxg6 Qd1+ 35. Kf2 fxg6+ 36. Kg2 Qe2+ 0-1

[Event "Leiden LCT op-B 09th"]
[Site "Leiden"]
[Date "2015.07.20"]
[Round "4"]
[White "Kohlbeck, Ton"]
[Black "Van den Berg, Jaap"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2008"]
[BlackElo "1848"]
[PlyCount "89"]
[EventDate "2015.07.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 f5 2. f4 Nf6 3. Nf3 d6 4. e3 g6 5. Nc3 c6 6. d5 h6 7. Bc4 c5 8. 0-0 Nbd7 9. Nh4 Rg8 10. e4 Nb6 11. Bb5+ Bd7 12. e5 Bxb5 13. Nxb5 Ne4 14. e6 a6 15. Na3 Bg7 16. Nxf5 Nf6 17. Nxg7+ Rxg7 18. c4 Qc7 19. Bd2 0-0-0 20. Ba5 Kb8 21. Rf3 Rdg8 22. Rb3 Qc8 23. Rxb6 g5 24. f5 g4 25. Bc3 Ka7 26. Bxf6 exf6 27. Rb3 Rg5 28. Qd3 Qe8 29. Re1 R8g7 30. Nc2 Rh5 31. Qg3 Qe7 32. Qf4 Rhg5 33. a4 Rh5 34. a5 Rgg5 35. Ne3 Rg8 36. Rb6 Rd8 37. Nxg4 Rg5 38. Nf2 h5 39. Re3 h4 40. g4 hxg3 41. Rxg3 Rh8 42. Rbb3 Qh7 43. Rxg5 fxg5 44. Qxd6 g4 45. e7 1-0

[Event "Leiden LCT op-B 09th"]
[Site "Leiden"]
[Date "2015.07.17"]
[Round "1"]
[White "Van 't Hoff, Kees"]
[Black "Kohlbeck, Ton"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "1819"]
[BlackElo "2008"]
[PlyCount "77"]
[EventDate "2015.07.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. g3 g6 7. Bg2 d6 8. Nc3 Bg7 9. Nf3 0-0 10. 0-0 Nbd7 11. Re1 Qa5 12. e4 Rab8 13. Rb1 Ng4 14. Bf4 Rxb2 15. Rxb2 Bxc3 16. Bd2 Nde5 17. Bxc3 Qxc3 18. Rc2 Qa3 19. Nxe5 Nxe5 20. Re3 Bd3 21. Rd2 c4 22. Bf1 Rc8 23. f4 Qc5 24. Kf2 f5 25. exf5 c3 26. fxe5 Bxf1 27. Rc2 Rf8 28. Rcxc3 Rxf5+ 29. Ke1 Bc4 30. Kd2 Qxd5+ 31. Kc1 Qb5 32. exd6 Bxa2 33. Rc8+ Kg7 34. Rxe7+ Bf7 35. Qd4+ Kh6 36. Qe3+ Kg7 37. d7 Rf1+ 38. Kd2 Qb4+ 39. Qc3+ 1-0

