[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2021.07.09"]
[Round "7"]
[White "Binnendijk, Wilfried"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1860"]
[BlackElo "1386"]
[PlyCount "43"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Bg5 Nbd7 8. Nge2 a6 9. 0-0 b5 10. Bb3 b4 11. Nd5 Nxd5 12. Bxd5 Rb8 13. Rfd1 f6 14. Bh4 Bd6 15. f3 Nb6 16. Bf2 Nxd5 17. Rxd5 Bb7 18. Rd2 Ke7 19. Rad1 Rbd8 20. c4 c5 21. Nc1 f5 22. Bh4+ 1-0

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2020.09.25"]
[Round "6"]
[White "Kuiper, Machiel"]
[Black "Uittenbogaard, Rob"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1386"]
[BlackElo "1563"]
[PlyCount "78"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 c5 5. c3 Nc6 6. h3 Qb6 7. Qc2 Bd7 8. Nbd2 Rc8 9. Qb3 c4 10. Qxb6 axb6 11. Be2 Be7 12. 0-0 0-0 13. Rfe1 b5 14. a3 Rfd8 15. Bf1 Ne4 16. Nxe4 dxe4 17. Nd2 f5 18. Bg3 Be8 19. f3 exf3 20. Nxf3 Bh5 21. Be2 Bf7 22. Bf1 Bd6 23. Bh2 Bxh2+ 24. Kxh2 Re8 25. e4 fxe4 26. Rxe4 Bg6 27. Re3 Rc7 28. Rae1 Rce7 29. Ne5 Nxe5 30. Rxe5 Rf8 31. Kg1 Be8 32. Rxe6 Rxe6 33. Rxe6 Bc6 34. a4 Bd5 35. Re5 Rd8 36. axb5 Kf7 37. Rxd5 Rxd5 38. Bxc4 Ke6 39. Bxd5+ Kxd5 1-0

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2019.12.20"]
[Round "3"]
[White "Warnaar, Alisha"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "1860"]
[BlackElo "1386"]
[PlyCount "45"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nf6 7. Re1 Nc6 8. Nxc6 dxc6 9. e5 Nd7 10. Bf4 g6 11. c3 b5 12. Nd2 Bb7 13. Ne4 h6 14. Nd6+ Bxd6 15. exd6 Qd8 16. Qg4 Qf6 17. a4 Nc5 18. Be5 Qd8 19. Bxh8 Nxd3 20. Red1 Nc5 21. Qd4 Nd7 22. Qg7 Bc8 23. Qg8+ 1-0

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2019.11.29"]
[Round "2"]
[White "Schenkelaars, Robin"]
[Black "Kuiper, Machiel"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1656"]
[BlackElo "1386"]
[PlyCount "78"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f3 c6 5. Be3 b5 6. a3 Nbd7 7. Qd2 Qc7 8. g4 Nb6 9. b3 Bg7 10. h4 a5 11. Bh6 0-0 12. h5 e5 13. hxg6 fxg6 14. Bxg7 Qxg7 15. d5 cxd5 16. Bxb5 Be6 17. Bc6 d4 18. Bxa8 Rxa8 19. Nce2 d5 20. Ng3 dxe4 21. g5 e3 22. Qh2 Nfd5 23. Ne4 Nd7 24. Nf6+ N5xf6 25. gxf6 Qf7 26. Ne2 Rc8 27. Ng3 Nxf6 28. 0-0 Qc7 29. Qh4 Qg7 30. Rac1 Nd5 31. Ne4 Rf8 32. Nd6 Nf4 33. Kh2 Ne2 34. Rce1 Nf4 35. Ne4 Bf5 36. Kh1 Nh3 37. Kh2 Nf4 38. Rg1 Bxe4 39. fxe4 Rc8 1/2-1/2

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2019.11.08"]
[Round "1"]
[White "Kuiper, Machiel"]
[Black "Beetstra, Jaap"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1386"]
[BlackElo "1721"]
[PlyCount "57"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 e6 2. Bf4 Nf6 3. e3 d5 4. h3 Bd6 5. Nf3 Ne4 6. Nbd2 Nd7 7. c4 Bxf4 8. exf4 c6 9. Bd3 f5 10. 0-0 0-0 11. Be2 Ndf6 12. Ne5 Qb6 13. Nb3 Qc7 14. c5 Bd7 15. Qe1 Ne8 16. Nd2 Nxd2 17. Qxd2 Nf6 18. Rac1 Rad8 19. b4 a6 20. Kh2 Ra8 21. a3 Rfe8 22. f3 Re7 23. g4 fxg4 24. hxg4 Be8 25. Bd3 g6 26. Qg2 a5 27. Ra1 Nd7 28. Qh3 Nxe5 29. fxe5 1/2-1/2

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.06.21"]
[Round "9"]
[White "Versteegen, Ischa"]
[Black "Kuiper, Machiel"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1477"]
[BlackElo "1483"]
[PlyCount "66"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Bd3 e5 5. d5 Be7 6. Bg5 Nxd5 7. Nxd5 Bxg5 8. Nf3 Bf6 9. 0-0 Nc5 10. Qe2 Nxd3 11. Qxd3 0-0 12. Rfe1 c6 13. Nc3 Qc7 14. Red1 Be7 15. h3 Be6 16. Qe3 Qb6 17. Qc1 Rad8 18. Rb1 f5 19. Ng5 Bxg5 20. Qxg5 f4 21. Qe7 Rfe8 22. Qg5 Qc7 23. f3 Qe7 24. Qh5 Qf6 25. Rxd6 g6 26. Rxd8 Rxd8 27. Qh6 Rd2 28. Rc1 Qd8 29. h4 Qd4+ 30. Kh1 Qd8 31. h5 Qh4+ 32. Kg1 Qf2+ 33. Kh1 Qxg2# 0-1

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.05.24"]
[Round "8"]
[White "De Zoeten, Cato"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1681"]
[BlackElo "1483"]
[PlyCount "45"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Nxd4 c6 7. Be3 Qc7 8. Be2 Nc5 9. Bf3 Bd7 10. Qd2 Bg4 11. a3 Be7 12. Nf5 0-0 13. 0-0-0 Rad8 14. Qf2 Nfxe4 15. Nxe4 Nxe4 16. Bxe4 Bxd1 17. Rxd1 Rfe8 18. Bd4 Bf8 19. Bd3 f6 20. Qh4 h6 21. Qg3 Kh8 22. Qg6 d5 23. Nd6 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.04.26"]
[Round "7"]
[White "Kuiper, Machiel"]
[Black "Turenhout, Ryanne"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1483"]
[BlackElo "1435"]
[PlyCount "34"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 Bg7 4. e4 d6 5. Qd2 Nbd7 6. 0-0-0 0-0 7. Nf3 a6 8. Bh6 b5 9. Bxg7 Kxg7 10. a3 Bb7 11. Bd3 c5 12. d5 c4 13. Be2 Qb6 14. Qd4 Qc7 15. Nd2 Qc5 16. Nf3 Qc7 17. Nd2 Qc5 1/2-1/2

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.03.22"]
[Round "6"]
[White "Feiner, Reinier"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2043"]
[BlackElo "1483"]
[PlyCount "39"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Qxd4 c6 7. Bc4 Be7 8. e5 c5 9. Qd3 dxe5 10. Bxf7+ Kxf7 11. Ng5+ Ke8 12. Qc4 Nf8 13. Qf7+ Kd7 14. fxe5 Ng4 15. Bf4 Kc6 16. Rd1 Nd7 17. Qd5+ Kb6 18. Ne6 Qg8 19. Qb3+ Kc6 20. Qb5# 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.02.15"]
[Round "5"]
[White "Kuiper, Machiel"]
[Black "Van den Bosse, Bart"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1483"]
[BlackElo "1843"]
[PlyCount "67"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 c5 3. e3 Nc6 4. c3 Nf6 5. h3 g6 6. Nf3 Qb6 7. Qb3 c4 8. Qc2 Bg7 9. Nbd2 0-0 10. Be2 Bf5 11. Qc1 Rfe8 12. g4 Bd7 13. b3 cxb3 14. Nxb3 Ne4 15. Rb1 Qd8 16. Nbd2 Nxd2 17. Qxd2 Na5 18. Ne5 Bxe5 19. dxe5 Bc6 20. Rg1 e6 21. g5 Nc4 22. Qd1 Qa5 23. Bxc4 Qxc3+ 24. Qd2 Qxd2+ 25. Kxd2 dxc4 26. Kc3 Bd5 27. Rgd1 Rab8 28. Rd4 b5 29. e4 Bc6 30. a3 Kf8 31. f3 Ke7 32. Be3 a6 33. Rbd1 Rec8 34. Rd6 1/2-1/2

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.01.11"]
[Round "4"]
[White "Van Drunick, Jan Willem"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "A54"]
[WhiteElo "1943"]
[BlackElo "1483"]
[PlyCount "92"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 4. Nc3 e5 5. Bg5 Be7 6. e3 c6 7. Be2 a5 8. Qc2 Qc7 9. Rc1 Nf8 10. Bh4 Ng6 11. Bg3 0-0 12. Nd2 Re8 13. 0-0 Bd7 14. f4 exd4 15. exd4 Ng4 16. Bxg4 Bxg4 17. f5 Nf8 18. Rce1 Qd7 19. h3 Bh5 20. Nde4 f6 21. d5 Rac8 22. Qd2 Bf7 23. dxc6 bxc6 24. b3 d5 25. Rd1 Red8 26. Qe2 Qa7+ 27. Bf2 Qc7 28. Nd2 Re8 29. Qd3 Bb4 30. cxd5 Rcd8 31. Rc1 Bxc3 32. Qxc3 Bxd5 33. Nc4 Bxc4 34. Qxc4+ Kh8 35. Qa6 Qe5 36. Rxc6 Rd2 37. Rc5 Qb2 38. Rc8 Rxf2 39. Rxf2 Re1+ 40. Rf1 Qd4+ 41. Kh1 Rxf1+ 42. Qxf1 Qd6 43. Qd3 Qe7 44. Qe4 Qf7 45. Qe8 Kg8 46. Qxf7+ Kxf7 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2018.12.07"]
[Round "3"]
[White "Kuiper, Machiel"]
[Black "Bingen, Stanley"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1483"]
[BlackElo "1262"]
[PlyCount "53"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 c6 2. c3 d6 3. Bf4 Nf6 4. e3 Nd5 5. Bg3 Bf5 6. Nd2 Bg6 7. Ngf3 Qc7 8. Nh4 Nd7 9. Nxg6 hxg6 10. Nf3 0-0-0 11. Be2 f6 12. Bd3 g5 13. Qb3 e6 14. c4 N5b6 15. c5 Nd5 16. Qa3 a5 17. cxd6 Qb6 18. 0-0 Nb4 19. Rfb1 e5 20. dxe5 Nxe5 21. Bf5+ Kb8 22. Nxe5 fxe5 23. Bxe5 g4 24. Rd1 Ka7 25. Qc3 Rh5 26. Bd4 Nd5 27. Qxa5+ 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2018.11.09"]
[Round "2"]
[White "Tolenaar, Jan"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2048"]
[BlackElo "1483"]
[PlyCount "81"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d6 2. Bf4 g6 3. e3 Bg7 4. Nf3 Nf6 5. Be2 Nc6 6. h3 0-0 7. 0-0 Re8 8. c4 Nh5 9. Bh2 e5 10. Nc3 exd4 11. Nxd4 Nf6 12. Bf3 Bd7 13. Rc1 Rb8 14. a3 Bh6 15. b4 Ne5 16. Be2 Bf5 17. Qb3 Qd7 18. Nd5 Bg7 19. Rfd1 Bxh3 20. gxh3 Qxh3 21. e4 Qd7 22. Nxf6+ Bxf6 23. f3 Bg7 24. Qe3 Qh3 25. Bf1 Bh6 26. Qf2 Qh5 27. Rc3 c5 28. Nb5 Re6 29. Rxd6 Rxd6 30. Nxd6 Rd8 31. bxc5 b6 32. cxb6 axb6 33. Qxb6 Rf8 34. Qf2 Rd8 35. c5 Bg7 36. Bc4 Rd7 37. Bd5 Qh6 38. c6 Rc7 39. Ne8 Nxc6 40. Nxg7 Qxg7 41. Rxc6 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2018.10.19"]
[Round "1"]
[White "Kuiper, Machiel"]
[Black "Van Vleuten, Ronald"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1483"]
[BlackElo "1744"]
[PlyCount "124"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. h3 h6 5. Nf3 c6 6. c3 e6 7. Nbd2 Be7 8. Be2 Nbd7 9. 0-0 0-0 10. c4 Ne4 11. Rc1 Qa5 12. a3 Nxd2 13. Nxd2 Nf6 14. f3 Bh7 15. g4 Nd7 16. Bg3 f5 17. Rf2 fxg4 18. hxg4 Qd8 19. Rh2 Rf7 20. Qe1 Qf8 21. Bh4 Bd6 22. Rg2 Re8 23. f4 Nf6 24. g5 hxg5 25. fxg5 Be4 26. Rf2 Nd7 27. Bh5 Rxf2 28. Bxf2 g6 29. Nxe4 gxh5 30. Nxd6 Qxd6 31. Bg3 Qe7 32. Bh4 Qg7 33. Qg3 Rf8 34. Rc2 Nb6 35. b3 Qg6 36. Rf2 Rxf2 37. Qxf2 Qf5 38. c5 Qxf2+ 39. Kxf2 Nd7 40. Kf3 Kf7 41. Kf4 Nf8 42. Kf3 Ng6 43. Bg3 Ne7 44. e4 Kg6 45. Bh4 dxe4+ 46. Kxe4 Nf5 47. Bf2 Kxg5 48. Ke5 Ng7 49. a4 h4 50. Ke4 Kg4 51. Ke5 h3 52. Bg1 Kg3 53. Be3 Nh5 54. Kxe6 h2 55. Kd6 h1Q 56. Kc7 Qb1 57. Kxb7 Qxb3+ 58. Kxc6 Qxe3 59. d5 Qe4 60. a5 Nf6 61. Kb7 Qxd5+ 62. Kxa7 Qxc5+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2013.07.02"]
[Round "7"]
[White "Schoonman, Ivo"]
[Black "Kuiper, Machiel"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "72"]
[EventDate "2013.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. dxe5 dxe5 6. Bc4 Be7 7. 0-0 0-0 8. Qe2 c6 9. Rd1 Qc7 10. Bg5 Nc5 11. a3 Ne6 12. Bh4 Nf4 13. Qe1 Bg4 14. Qe3 h6 15. Bg3 N6h5 16. Rd2 Nxg3 17. hxg3 Ne6 18. b4 b5 19. Bb3 a5 20. bxa5 Rxa5 21. a4 Bc5 22. Qe1 b4 23. Ne2 Bxf3 24. gxf3 Nd4 25. Nxd4 Bxd4 26. Rxd4 exd4 27. Qxb4 c5 28. Qc4 Qe5 29. Rd1 Ra7 30. Re1 g5 31. Kg2 Kg7 32. Qd3 Rc8 33. Qc4 Rc6 34. Re2 Rf6 35. Qb5 Qc7 36. Qc4 h5 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2013.06.25"]
[Round "6"]
[White "Kuiper, Machiel"]
[Black "Van der Knaap, Jan"]
[Result "0-1"]
[ECO "A40"]
[PlyCount "82"]
[EventDate "2013.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 g6 3. e3 Bg7 4. Bd3 Nd7 5. 0-0 e5 6. c4 Qe7 7. Nc3 Ngf6 8. Qc2 0-0 9. d5 Nc5 10. e4 a5 11. Be3 Ne8 12. Be2 f5 13. Bg5 Nf6 14. Bd3 f4 15. h3 h6 16. Bxf6 Bxf6 17. Nh2 Kh8 18. Be2 Rg8 19. a3 a4 20. Qd1 Bd7 21. Bg4 h5 22. Bxd7 Qxd7 23. f3 Bh4 24. Qc2 Rg7 25. Rab1 Nb3 26. Ne2 g5 27. Rbd1 Rag8 28. Rd3 Bg3 29. Kh1 Bxh2 30. Kxh2 g4 31. Ng1 Nd4 32. Qd2 Rg6 33. Kh1 Qg7 34. Rf2 gxf3 35. Nxf3 Nb3 36. Qc2 Rg3 37. Rd1 Nc5 38. Rg1 Qg6 39. Re2 Rxf3 40. Kh2 Rxh3+ 41. Kxh3 Qg3# 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2013.06.04"]
[Round "3"]
[White "Straver, Robert"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2157"]
[PlyCount "45"]
[EventDate "2013.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 h6 6. 0-0 Be7 7. Re1 c6 8. a4 a5 9. Bb3 Qc7 10. Qd3 Nf8 11. Qc4 Bd8 12. dxe5 Be6 13. exd6 Qd7 14. Qd3 Bxb3 15. cxb3 Ne6 16. e5 Nh7 17. Be3 0-0 18. Rad1 f6 19. Qc4 Kh8 20. Ne4 f5 21. Nc5 Nxc5 22. Bxc5 Re8 23. e6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2013.05.21"]
[Round "1"]
[White "Kuiper, Machiel"]
[Black "Wagemans, Ed"]
[Result "0-1"]
[ECO "D04"]
[PlyCount "51"]
[EventDate "2013.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Bd3 Bg7 5. Nbd2 0-0 6. 0-0 Nc6 7. b3 Nb4 8. Be2 Bf5 9. Ne1 a5 10. c3 Na6 11. Bd3 Bxd3 12. Nxd3 Rc8 13. Ba3 Re8 14. Nf3 Ne4 15. Rc1 c5 16. c4 dxc4 17. Rxc4 b5 18. Rc1 c4 19. bxc4 bxc4 20. Nde1 Nb4 21. Qe2 Qd5 22. Bxb4 axb4 23. Nd2 Nc3 24. Rxc3 bxc3 25. Nb1 Qa5 26. Nxc3 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.06.26"]
[Round "7"]
[White "Bakker, Joop"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1911"]
[PlyCount "37"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Qxd4 c6 7. e5 dxe5 8. fxe5 Ng8 9. Bc4 h6 10. Qf4 f6 11. 0-0 Be7 12. e6 Bc5+ 13. Kh1 Nf8 14. Qf5 Qe7 15. Ne4 Bb6 16. Bf4 Bc7 17. Bxc7 Qxc7 18. Rad1 Ke7 19. Qc5+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.06.19"]
[Round "6"]
[White "Kuiper, Machiel"]
[Black "Noordijk, Ed"]
[Result "0-1"]
[ECO "B07"]
[BlackElo "1763"]
[PlyCount "72"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d6 2. e4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. dxe5 dxe5 6. fxe5 Nxe5 7. Qxd8+ Kxd8 8. Bg5 c6 9. 0-0-0+ Kc7 10. h3 Be6 11. Kb1 Nfd7 12. Nf3 Re8 13. Bf4 f6 14. a3 b5 15. b4 Bf7 16. Nd2 a5 17. Kb2 axb4 18. axb4 Bxb4 19. Ra1 Ra8 20. Be2 Kb7 21. Rhd1 Rxa1 22. Rxa1 Ra8 23. Rxa8 Kxa8 24. Nf3 Kb7 25. Nd4 g5 26. Bg3 Nc4+ 27. Bxc4 Bxc4 28. Nf5 Ne5 29. Bf2 Kc7 30. Bd4 Kd7 31. Nd1 Bf8 32. Nde3 Be6 33. Bc3 b4 34. Bd2 c5 35. Ng3 c4 36. Ne2 c3+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.06.12"]
[Round "5"]
[White "Zuijdendorp, Milko"]
[Black "Kuiper, Machiel"]
[Result "0-1"]
[ECO "A54"]
[PlyCount "81"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bg5 Be7 6. Qc2 c6 7. Rd1 Qc7 8. e3 Nf8 9. Be2 Ne6 10. Bxf6 Bxf6 11. Ne4 Be7 12. 0-0 g6 13. dxe5 dxe5 14. c5 0-0 15. Rd2 Ng7 16. Qc3 f6 17. Qb3+ Be6 18. Bc4 Bxc4 19. Qxc4+ Kh8 20. Rfd1 Rad8 21. Nd6 Bxd6 22. cxd6 Qd7 23. Ne1 Ne8 24. g3 Ng7 25. Nd3 Ne6 26. Qc3 Kg8 27. Qb3 Kg7 28. Qc3 Kg8 29. Qc4 Kg7 30. f4 exf4 31. exf4 Rde8 32. Qc3 Kg8 33. Nf2 Ng7 34. Qc5 a6 35. Qb6 Re6 36. Qc7 Rd8 37. Ng4 Nf5 38. Kf2 Kg7 39. Re2 Rxe2+ 40. Kxe2 Nxd6 41. Qb6 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.05.29"]
[Round "3"]
[White "Kuiper, Machiel"]
[Black "Van de Peut, Aart A"]
[Result "0-1"]
[ECO "E24"]
[BlackElo "1907"]
[PlyCount "52"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Bxc3+ 6. bxc3 b6 7. e4 Bb7 8. d5 d6 9. Nf3 0-0 10. Bd3 Nbd7 11. 0-0 e5 12. Bg5 h6 13. Bd2 Nh7 14. Qc1 Qe7 15. h3 Rac8 16. Nh2 b5 17. cxb5 c4 18. Bc2 Nc5 19. f4 Nf6 20. fxe5 Nfxe4 21. exd6 Qxd6 22. Bf4 Qxd5 23. Rd1 Nd3 24. Qe3 Nxc3 25. Rd2 Rfe8 26. Qf3 Qc5+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.05.23"]
[Round "2"]
[White "Zwinkels, Wim"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1850"]
[PlyCount "69"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. d4 Nbd7 4. Be3 e5 5. f3 Be7 6. Nge2 c6 7. Qd2 Qc7 8. g4 h6 9. Ng3 Nf8 10. Nf5 Bxf5 11. gxf5 N8h7 12. Qf2 a6 13. dxe5 dxe5 14. 0-0-0 Nd7 15. h4 b5 16. Rg1 Bf6 17. Kb1 Rb8 18. Ne2 Nhf8 19. Nc1 h5 20. Nd3 Ra8 21. Be2 a5 22. Rd2 b4 23. Nc5 Nxc5 24. Bxc5 Nd7 25. Bd6 Qd8 26. Rgd1 Bxh4 27. Qh2 Bg5 28. Rd3 Bf4 29. Qg2 Rh7 30. Bxb4 axb4 31. Rxd7 Qxd7 32. Rxd7 Kxd7 33. Bc4 f6 34. Qg6 Rf8 35. Qxh7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.05.16"]
[Round "1"]
[White "Kuiper, Machiel"]
[Black "De Jeu, Marcel"]
[Result "0-1"]
[ECO "A41"]
[BlackElo "1929"]
[PlyCount "73"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. d5 f5 4. e3 Nf6 5. Nc3 Be7 6. Nf3 0-0 7. Be2 Na6 8. a3 Nc5 9. b4 Nfe4 10. Qc2 Nxc3 11. Qxc3 Ne4 12. Qc2 a5 13. Rb1 axb4 14. axb4 c6 15. Bd3 cxd5 16. cxd5 Ng5 17. Nxg5 Bxg5 18. g3 Bd7 19. b5 Qb6 20. 0-0 Rac8 21. Qe2 Rc7 22. Bd2 Rfc8 23. Qh5 e4 24. Bxe4 fxe4 25. Qxg5 Rc5 26. Qf4 Rxd5 27. Rfc1 Rxd2 28. Rxc8+ Bxc8 29. Qxe4 Qd8 30. Rc1 d5 31. Qe5 Bh3 32. Qf4 Qf8 33. Qxf8+ Kxf8 34. f4 Rg2+ 35. Kh1 Rb2 36. Rc5 Ke8 37. Rxd5 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.28"]
[Round "7"]
[White "Kuiper, Machiel"]
[Black "Zeevaarder, Michael"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "1263"]
[BlackElo "1811"]
[PlyCount "90"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 g6 5. Nf3 Bg7 6. Be2 0-0 7. 0-0 Nbd7 8. b3 Ne4 9. Qc2 Nxc3 10. Qxc3 Nf6 11. Qc2 Bg4 12. h3 Bf5 13. Bd3 Bxd3 14. Qxd3 Ne4 15. cxd5 cxd5 16. Ba3 Re8 17. Rac1 Qa5 18. b4 Qb6 19. Rc2 Rac8 20. Rfc1 Rxc2 21. Rxc2 Nd6 22. Nd2 Rc8 23. Rxc8+ Nxc8 24. b5 Qc7 25. Qb3 Nb6 26. Bc5 Nc4 27. Bb4 e5 28. Nxc4 dxc4 29. Qc3 exd4 30. exd4 Qf4 31. Qxc4 Bxd4 32. Qc8+ Kg7 33. Be1 Qe5 34. Qxb7 Qxe1+ 35. Kh2 Be5+ 36. g3 Qxf2+ 37. Kh1 Bxg3 38. Qg2 Qe1+ 39. Qg1 Qxg1+ 40. Kxg1 g5 41. a4 Bc7 42. Kf1 h5 43. Kg2 f5 44. Kf3 g4+ 45. hxg4 hxg4+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.21"]
[Round "6"]
[White "Molsbergen, Chris"]
[Black "Kuiper, Machiel"]
[Result "0-1"]
[ECO "E01"]
[WhiteElo "1558"]
[BlackElo "1263"]
[PlyCount "130"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. g3 d5 2. d4 c6 3. Bg2 Nf6 4. c4 e6 5. Nc3 Be7 6. c5 a5 7. Na4 Nbd7 8. e3 b5 9. cxb6 Nxb6 10. a3 Bd7 11. Nc5 Qc7 12. Ne2 0-0 13. 0-0 Bc8 14. Bd2 Bxc5 15. dxc5 Nbd7 16. b4 axb4 17. axb4 Ba6 18. Bc3 Ng4 19. Qd4 Ngf6 20. Qd2 Ra7 21. Ra5 Rfa8 22. Rfa1 Bc4 23. Nd4 Rxa5 24. bxa5 Nxc5 25. Bb4 Nce4 26. Qc2 c5 27. f3 Nd6 28. e4 e5 29. Nb3 cxb4 30. exd5 Qa7+ 31. Kh1 Rc8 32. Qd1 Bxd5 33. Qe1 Bxb3 34. Qxb4 Nde8 35. Qxb3 h6 36. Qb2 Qc7 37. a6 Qa7 38. Qb7 Ra8 39. f4 Nd6 40. Qxa8+ Qxa8 41. Bxa8 exf4 42. Bb7 Nd7 43. a7 Nb6 44. a8Q+ Nxa8 45. Rxa8+ Kh7 46. Bd5 fxg3 47. hxg3 f6 48. Ra6 Nf5 49. Ra8 Nxg3+ 50. Kh2 Nf5 51. Kh3 h5 52. Ra5 Kh6 53. Be4 Ne7 54. Bf3 g5 55. Be4 Ng6 56. Ra6 Kg7 57. Ra7+ Kh6 58. Ra6 Kg7 59. Bd3 Nf4+ 60. Kg3 Nxd3 61. Ra7+ Kg6 62. Rd7 Ne5 63. Rd8 h4+ 64. Kh3 Kf5 65. Rd5 Ke6 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.15"]
[Round "5"]
[White "Kuiper, Machiel"]
[Black "Kuipers, Joris"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "1263"]
[BlackElo "1604"]
[PlyCount "60"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. b3 g6 5. Nd2 Bg7 6. a3 Nxd5 7. cxd5 Bxa1 8. e4 a6 9. Ndf3 Bc3+ 10. Bd2 Qa5 11. Bxc3 Qxc3+ 12. Nd2 d6 13. Ne2 Qa5 14. Qa1 Nd7 15. Qxh8+ Nf8 16. Qb2 e6 17. g3 exd5 18. exd5 Bf5 19. Nf4 0-0-0 20. Be2 g5 21. b4 Qb6 22. 0-0 gxf4 23. gxf4 c4 24. a4 Nd7 25. axb5 axb5 26. Bf3 Bh3 27. Ra1 Rg8+ 28. Kh1 Qxf2 29. Qc1 Bg2+ 30. Bxg2 Qxg2# 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.07"]
[Round "4"]
[White "Postma, Jan"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "1742"]
[BlackElo "1263"]
[PlyCount "119"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. a4 Be7 8. 0-0 0-0 9. Be3 Nbd7 10. f4 Re8 11. Qd2 Nf8 12. Bf3 Qc7 13. Nde2 Bd7 14. a5 Bc6 15. Bb6 Qb8 16. Ng3 N8d7 17. Be3 b5 18. axb6 Nxb6 19. b3 Nbd7 20. e5 Bxf3 21. exf6 Bxg2 22. Qxg2 Bxf6 23. Nge4 Be7 24. Na4 d5 25. Ng5 Bd6 26. Qd2 Nf6 27. Bd4 Nh5 28. Nh3 Qd8 29. Qf2 e5 30. fxe5 Bxe5 31. Qxf7+ Kh8 32. Qxh5 Bxd4+ 33. Kh1 Bxa1 34. Rxa1 Qf6 35. Ng5 h6 36. Rg1 Kg8 37. Nf3 Re3 38. Qxd5+ Kh7 39. Qxa8 Rxf3 40. Qe4+ g6 41. Rxg6 Qxg6 42. Qxf3 Qxc2 43. Qf7+ Kh8 44. Qf6+ Kh7 45. Qc3 Qe2 46. Qc7+ Kg6 47. Qc6+ Kh7 48. Qc7+ Kg6 49. Qg3+ Kh7 50. h4 Qf1+ 51. Kh2 Qe2+ 52. Kg1 Qd1+ 53. Kg2 Qc2+ 54. Kh3 Qc6 55. Qd3+ Kg7 56. Qc3+ Qxc3+ 57. Nxc3 Kf6 58. Na4 Ke5 59. Nc5 a5 60. Nb7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.01"]
[Round "3"]
[White "Kuiper, Machiel"]
[Black "Landsheer, Jos"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "1263"]
[BlackElo "1670"]
[PlyCount "61"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 c5 7. 0-0 cxd4 8. Nxd4 Nc6 9. Be3 a6 10. Rc1 Bd7 11. f3 Ne8 12. Nb3 Nc7 13. c5 Be6 14. cxd6 exd6 15. Bb6 Qe7 16. a3 Bxb3 17. Qxb3 Bd4+ 18. Kh1 Bxb6 19. Qxb6 Ne6 20. Nd5 Qd8 21. Qe3 Ned4 22. Rc3 Nxe2 23. Qxe2 f5 24. Nf4 Qe7 25. Re3 fxe4 26. Rxe4 Qf7 27. Ne6 Rfe8 28. Ng5 Rxe4 29. fxe4 Qb3 30. Qg4 Qc4 31. Qf3 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.05.24"]
[Round "2"]
[White "Kuiper, Machiel"]
[Black "Zwetsloot, Piet"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "1263"]
[BlackElo "1806"]
[PlyCount "84"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e3 0-0 5. Bd3 c5 6. Nf3 cxd4 7. exd4 d5 8. Be3 Nc6 9. a3 dxc4 10. Bxc4 Bg4 11. d5 Ne5 12. Be2 Bxf3 13. Bxf3 Qd7 14. Qe2 Rfd8 15. Rd1 b6 16. 0-0 Rac8 17. Rc1 Nxf3+ 18. Qxf3 Ne8 19. Rfd1 Nd6 20. Bd4 Bf8 21. b3 Nf5 22. Be3 Nxe3 23. fxe3 Bg7 24. e4 Rc5 25. Rf1 Qe8 26. Ne2 Rdc8 27. a4 h5 28. Rxc5 Rxc5 29. Rc1 Rxc1+ 30. Nxc1 Qc8 31. Qd1 Bh6 32. Ne2 Qg4 33. Qd3 Qd7 34. Nd4 Bg7 35. Nc6 e6 36. h3 exd5 37. exd5 a5 38. Qe4 Bf6 39. Kf1 Kg7 40. Ke2 Qd6 41. Kf3 Qc5 42. Qd3 Qd6 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.05.17"]
[Round "1"]
[White "Van der Maat, Niek"]
[Black "Kuiper, Machiel"]
[Result "1-0"]
[ECO "D41"]
[WhiteElo "1926"]
[BlackElo "1263"]
[PlyCount "33"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 cxd4 6. Qa4+ Bd7 7. Qxd4 exd5 8. Nxd5 Qa5+ 9. Nc3 Nc6 10. Qd1 Rd8 11. Bd2 Qf5 12. g3 Be6 13. Bg2 Bd5 14. Nxd5 Nxd5 15. 0-0 Ndb4 16. a3 Nd5 17. e4 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.09"]
[Round "4"]
[White "Kuiper, Machiel"]
[Black "Oosthout, Wouter"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "836"]
[BlackElo "1850"]
[PlyCount "94"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 f5 2. c4 e6 3. Nf3 Nf6 4. Nc3 d6 5. e3 Be7 6. Bd3 0-0 7. 0-0 Qe8 8. Ne2 Ne4 9. h3 Kh8 10. Ng3 d5 11. Nh2 Nd7 12. Qe1 Qg6 13. cxd5 exd5 14. Be2 Ndf6 15. Nf3 Nxg3 16. fxg3 Ne4 17. Kh2 Bd6 18. Ne5 Qe8 19. Rf4 g5 20. Rf1 Bxe5 21. dxe5 Qxe5 22. Rb1 Kg8 23. Bd3 Nd6 24. b3 Re8 25. Bb2 Qxe3 26. Qc3 d4 27. Qxd4 Qxd4 28. Bxd4 Bd7 29. Rbc1 Bb5 30. Bxb5 Nxb5 31. Bf6 h6 32. Rxf5 Nd6 33. Rf3 c6 34. Rcf1 Re6 35. Bb2 b6 36. Ba3 c5 37. Bb2 Rae8 38. Bc1 Re2 39. h4 Ne4 40. Rf7 Rxa2 41. hxg5 Nxg5 42. Bxg5 hxg5 43. R7f5 Ree2 44. Rxg5+ Kh7 45. Rh5+ Kg6 46. Rff5 Rxg2+ 47. Kh1 Rxg3 0-1

