[Event "Leiden LCT op-A 6th"]
[Site "Leiden"]
[Date "2012.07.12"]
[Round "6"]
[White "De Bruijne, Arian"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1934"]
[BlackElo "1975"]
[PlyCount "111"]
[EventDate "2012.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nc6 4. d4 exd4 5. 0-0 Be7 6. e5 Ne4 7. Re1 d5 8. Bb5 0-0 9. Bxc6 bxc6 10. Nxd4 Qd7 11. c3 Nc5 12. Nd2 Ne6 13. N2b3 Re8 14. f4 Bf8 15. Kh1 Nd8 16. Bd2 Rb8 17. Qc2 c5 18. Nf3 Qf5 19. Qxf5 Bxf5 20. Be3 Ne6 21. Rad1 c6 22. Rd2 Be7 23. Rf2 h6 24. Kg1 Rec8 25. h3 Be4 26. Nfd2 Bh4 27. Nxe4 dxe4 28. f5 Bxf2+ 29. Kxf2 c4 30. Nd2 Nf8 31. Nxc4 c5 32. b3 Nd7 33. Bf4 Ra8 34. Rxe4 Rc6 35. g4 g5 36. Bg3 a5 37. a4 Re8 38. Nxa5 Rb6 39. Ke3 Ra8 40. b4 cxb4 41. cxb4 Rc8 42. Kd2 Ra6 43. Rd4 Ra7 44. Kd3 Kf8 45. e6 fxe6 46. fxe6 Nc5+ 47. bxc5 Rxa5 48. Bd6+ Ke8 49. Rc4 Rca8 50. Ke4 Rxa4 51. Rxa4 Rxa4+ 52. Kd5 h5 53. gxh5 Rh4 54. c6 Rxh3 55. c7 Rc3 56. Bc5 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.06.26"]
[Round "7"]
[White "Oosthout, Wouter"]
[Black "Lauer, Albert"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1857"]
[BlackElo "1871"]
[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. e4 d5 2. exd5 Nf6 3. c4 c6 4. d4 cxd5 5. Nc3 Bg4 6. Qb3 Qc7 7. cxd5 Nbd7 8. Nb5 Qb6 9. Qc4 Kd8 10. f3 Bf5 11. g4 Rc8 12. Qa4 a6 13. Nc3 Bg6 14. g5 Nh5 15. Bh3 Qd6 16. Nge2 h6 17. gxh6 gxh6 18. Qa5+ Rc7 19. Ne4 Qb6 20. Bd2 Qxa5 21. Bxa5 b6 22. Bxd7 bxa5 23. Ba4 Bg7 24. Kd2 Nf6 25. Nxf6 Bxf6 26. Rac1 Bh5 27. Ke3 Bg5+ 28. f4 Bxe2 29. fxg5 Bb5 30. Rxc7 Kxc7 31. Bxb5 axb5 32. gxh6 Rxh6 33. h4 Kd6 34. h5 Kxd5 35. Rc1 f5 36. Rc5+ Kd6 37. Rxf5 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.06.19"]
[Round "6"]
[White "Kubbenga, Michael"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1896"]
[BlackElo "1857"]
[PlyCount "53"]
[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 d5 2. c4 dxc4 3. e4 c5 4. d5 e6 5. Bxc4 Nf6 6. Nc3 exd5 7. exd5 Be7 8. Bf4 Bd6 9. Qe2+ Kf8 10. Bxd6+ Qxd6 11. Nb5 Qd8 12. 0-0-0 a6 13. Nc3 b5 14. Bb3 Qe8 15. Qd2 Ra7 16. Re1 Re7 17. Nf3 c4 18. Rxe7 Qxe7 19. Re1 Qd6 20. Bc2 Bb7 21. Qe3 Nbd7 22. Bf5 Nc5 23. Ne5 g6 24. Qh6+ Kg8 25. Ng4 Nfd7 26. Re8+ Nf8 27. Nf6+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.06.12"]
[Round "5"]
[White "Oosthout, Wouter"]
[Black "Kat, Rudolf"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1857"]
[BlackElo "1920"]
[PlyCount "45"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Nf3 Nf6 5. Bc4 Bf5 6. d3 e6 7. Qe2 Be7 8. h3 h6 9. Bf4 a6 10. a3 Nc6 11. Ba2 Bd6 12. Bd2 Qe7 13. 0-0 0-0 14. Ne4 Nxe4 15. dxe4 Bh7 16. e5 Bc5 17. Bc3 Rfd8 18. Rad1 Rxd1 19. Rxd1 Rd8 20. b4 Bb6 21. Bb2 Rxd1+ 22. Qxd1 Qd8 23. Qxd8+ 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.06.05"]
[Round "4"]
[White "Van den Bosse, Bart"]
[Black "Oosthout, Wouter"]
[Result "1/2-1/2"]
[ECO "D20"]
[BlackElo "1857"]
[PlyCount "38"]
[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 d5 2. c4 dxc4 3. e4 e5 4. Nf3 Bb4+ 5. Nc3 exd4 6. Nxd4 Qe7 7. Bxc4 Nf6 8. 0-0 Bxc3 9. bxc3 0-0 10. Re1 h6 11. e5 Nh7 12. e6 f5 13. Qh5 Kh8 14. Nxf5 Qe8 15. Bxh6 gxh6 16. Qxe8 Rxe8 17. Nxh6 Nc6 18. Re3 Na5 19. Bd3 Rxe6 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.05.30"]
[Round "3"]
[White "Oosthout, Wouter"]
[Black "Spaans, Coenraad"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "1857"]
[PlyCount "103"]
[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 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 7. Qd2 Rb8 8. f4 Nge7 9. Nge2 Nd4 10. 0-0 0-0 11. Kh1 Nxe2 12. Qxe2 b5 13. Rfe1 Nc6 14. Nd1 b4 15. Qf2 Qc7 16. Rc1 Ba6 17. Qd2 Ne7 18. c3 bxc3 19. bxc3 Qa5 20. h3 Rfc8 21. Rc2 Rb1 22. Bf2 Qb5 23. Bf1 Bb7 24. Kh2 Bc6 25. Ne3 Rxe1 26. Bxe1 d5 27. d4 Qa5 28. e5 Ba4 29. Rb2 Nc6 30. Qe2 c4 31. Ng4 Qd8 32. Bd2 h5 33. Ne3 Rb8 34. Bc1 Bf8 35. g4 Rxb2 36. Qxb2 Qh4 37. Ng2 Qe7 38. gxh5 gxh5 39. Qe2 h4 40. Qg4+ Bg7 41. Nxh4 f5 42. exf6 Qxf6 43. f5 e5 44. Bg5 Qd6 45. f6 exd4+ 46. Kh1 Ne5 47. Qc8+ Bf8 48. Nf5 Bd7 49. Nxd6 Bxc8 50. Nxc8 Nf3 51. Bf4 d3 52. Bg2 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.05.23"]
[Round "2"]
[White "Oosthout, Wouter"]
[Black "Van Briemen, Willem Jan"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1857"]
[BlackElo "2035"]
[PlyCount "74"]
[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 e6 2. d3 d5 3. Nd2 Nf6 4. g3 dxe4 5. dxe4 e5 6. Bg2 Bc5 7. Ngf3 Nc6 8. 0-0 0-0 9. c3 a5 10. a4 b6 11. Qc2 Ba6 12. Ne1 Bxf1 13. Nxf1 Qd6 14. Nd3 Rad8 15. Nxc5 Qxc5 16. Qe2 Qd6 17. Bg5 h6 18. Be3 Qd3 19. Qxd3 Rxd3 20. Bf3 Rdd8 21. Nd2 Ne8 22. g4 Nd6 23. Be2 Ne7 24. f3 Ng6 25. Bd1 Nf4 26. Bc2 g6 27. Rd1 Kg7 28. b3 Ne2+ 29. Kf2 Nxc3 30. Ra1 b5 31. axb5 Ncxb5 32. Rxa5 Ra8 33. Rxa8 Rxa8 34. Bd3 Nc3 35. Kg3 Ra2 36. f4 exf4+ 37. Bxf4 Rxd2 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.05.16"]
[Round "1"]
[White "Van den Berg, Ad"]
[Black "Oosthout, Wouter"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2206"]
[BlackElo "1857"]
[PlyCount "71"]
[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. c4 e5 2. Nc3 d6 3. Nf3 Nc6 4. d4 Bd7 5. e4 g6 6. d5 Nce7 7. Be2 Bg7 8. Be3 f5 9. exf5 Nxf5 10. Bg5 Bf6 11. h4 h6 12. Bxf6 Nxf6 13. Qc2 Rf8 14. 0-0-0 Ne7 15. Bd3 Bf5 16. Bxf5 gxf5 17. Qb3 b6 18. Rhe1 Qd7 19. Re2 Rg8 20. g3 a5 21. Rde1 0-0-0 22. Nd4 Rg4 23. Ncb5 Rdg8 24. Na7+ Kd8 25. Ne6+ Ke8 26. Nb5 c6 27. f3 Rxg3 28. dxc6 Nxc6 29. c5 bxc5 30. Rd2 Ne4 31. Rdd1 Nd4 32. Nbxd4 cxd4 33. Ng5 Nf6 34. Ne6 Qc6+ 35. Kb1 Qxf3 36. Nc7+ 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2010.06.29"]
[Round "7"]
[White "Oosthout, Wouter"]
[Black "Fakkert, Erwin"]
[Result "1/2-1/2"]
[ECO "B24"]
[WhiteElo "1906"]
[BlackElo "1709"]
[PlyCount "110"]
[EventDate "2010.05.18"]
[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. Nc3 e6 3. g3 Nc6 4. Bg2 d6 5. d3 Nf6 6. f4 Bd7 7. Nf3 a6 8. 0-0 Qc7 9. h3 g6 10. Be3 Nh5 11. Ne2 Bg7 12. c3 Qc8 13. g4 Nf6 14. Ng3 Qc7 15. Qd2 h5 16. g5 Ng8 17. Nh4 Nge7 18. Rae1 f5 19. Qf2 b6 20. Ne2 Rb8 21. Rc1 Qc8 22. Kh2 d5 23. Ng3 0-0 24. Qe2 Be8 25. Bf3 Rb7 26. Qg2 Rc7 27. exd5 exd5 28. Bxd5+ Nxd5 29. Qxd5+ Bf7 30. Qf3 Ne7 31. b3 Rd8 32. Rfd1 Qe6 33. Bd2 Rcd7 34. Re1 Rxd3 35. Rxe6 Rxf3 36. Nxf3 Bxe6 37. c4 Nc6 38. Nf1 Nd4 39. Kg2 Nxf3 40. Kxf3 Bd7 41. Bc3 Bc6+ 42. Kf2 Bd4+ 43. Bxd4 Rxd4 44. Rc3 Rxf4+ 45. Ke2 Rd4 46. Ng3 Bg2 47. Nf1 Bxf1+ 48. Kxf1 Rd2 49. a3 a5 50. b4 axb4 51. axb4 Rd4 52. bxc5 bxc5 53. Kf2 Kf7 54. Kf3 Re4 55. Ra3 Rd4 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2010.06.22"]
[Round "6"]
[White "Scherpenisse, Kees"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1915"]
[BlackElo "1906"]
[PlyCount "53"]
[EventDate "2010.05.18"]
[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 dxc4 3. e3 e5 4. Bxc4 Nf6 5. Nf3 Bb4+ 6. Kf1 Nc6 7. a3 Bd6 8. dxe5 Nxe5 9. Nxe5 Bxe5 10. Qxd8+ Kxd8 11. Bxf7 Rf8 12. Bc4 Ng4 13. f3 Bxb2 14. Bxb2 Nxe3+ 15. Ke2 Nxc4 16. Bxg7 Rg8 17. Bf6+ Kd7 18. g4 Ke6 19. g5 Kf5 20. Nc3 c6 21. a4 Be6 22. h4 Bf7 23. Kf2 Rge8 24. Ne4 b6 25. h5 Re6 26. Ng3+ Kf4 27. Rh4# 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2010.06.15"]
[Round "5"]
[White "Oosthout, Wouter"]
[Black "Zwinkels, Wim"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "1906"]
[BlackElo "1851"]
[PlyCount "73"]
[EventDate "2010.05.18"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 7. Qd2 Nge7 8. h4 f6 9. Nh3 0-0 10. f4 h6 11. Nf2 Nd4 12. Ncd1 Rb8 13. c3 Ndc6 14. g4 b6 15. f5 exf5 16. exf5 g5 17. d4 Bb7 18. Ne4 Nd5 19. dxc5 Nxe3 20. Nxe3 dxc5 21. Nd6 Ba8 22. Bd5+ Kh7 23. hxg5 fxg5 24. 0-0-0 Ne5 25. Bxa8 Rxa8 26. Qc2 Bf6 27. Ne4 Qe7 28. Nd5 Qg7 29. Ndxf6+ Rxf6 30. Nxf6+ Qxf6 31. Qe4 Re8 32. Rd5 c4 33. Kc2 Re7 34. Rhd1 Nd3 35. Qxc4 Nf4 36. Rd8 Rf7 37. R1d7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2010.06.08"]
[Round "4"]
[White "Heemskerk, Wim"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "2263"]
[BlackElo "1906"]
[PlyCount "59"]
[EventDate "2010.05.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 f5 2. g3 Nf6 3. c4 e6 4. Bg2 Be7 5. 0-0 0-0 6. Nc3 d6 7. d3 Qe8 8. e4 e5 9. exf5 Nc6 10. d4 Bxf5 11. dxe5 dxe5 12. Nd5 Bd8 13. Be3 Nd7 14. Qb3 Rb8 15. Nd2 Na5 16. Qa4 c6 17. Nc3 Bd3 18. Rfe1 b5 19. cxb5 cxb5 20. Qd1 Nc4 21. Bxa7 Bb6 22. Bxb6 Rxb6 23. Nde4 Nxb2 24. Qb3+ Nc4 25. Nxb5 Bxe4 26. Qxc4+ Qf7 27. Rxe4 Qxc4 28. Rxc4 Rxb5 29. Bc6 Rc5 30. Bxd7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2010.06.01"]
[Round "3"]
[White "Oosthout, Wouter"]
[Black "Kat, Rudolf"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "1906"]
[BlackElo "1895"]
[PlyCount "117"]
[EventDate "2010.05.18"]
[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 c6 2. d3 d5 3. Nd2 g6 4. g3 Bg7 5. Bg2 Na6 6. exd5 cxd5 7. Ne2 Nf6 8. Nf3 0-0 9. 0-0 Bd7 10. Ne5 Bc6 11. d4 Rc8 12. Be3 Bb5 13. a4 Bc4 14. c3 Ne4 15. Nxc4 Rxc4 16. Qd3 f5 17. Nf4 Nc7 18. f3 Nd6 19. Kh1 Qe8 20. Rfe1 Rxa4 21. Rac1 Ra2 22. Qb1 Qa4 23. Rc2 Bf6 24. b3 Rxc2 25. bxa4 Rxc3 26. Qb2 Rc4 27. Rc1 Rc8 28. Rxc4 dxc4 29. Bf1 g5 30. Nh3 h6 31. Qc1 Nd5 32. Ng1 c3 33. Bd3 Nb4 34. Qb1 a5 35. Bxf5 Nxf5 36. Qxf5 Rc6 37. Ne2 c2 38. Qxa5 Nd3 39. Qa8+ Kg7 40. Qxb7 Re6 41. Qb3 Rxe3 42. Qxc2 Rxf3 43. a5 Rf1+ 44. Kg2 Ne1+ 45. Kxf1 Nxc2 46. a6 Nxd4 47. a7 Nxe2 48. Kxe2 g4 49. a8Q h5 50. Qe8 Kh6 51. Ke3 Kg5 52. Qg8+ Kh6 53. Kf4 Bg7 54. Kf5 h4 55. Qf7 e6+ 56. Qxe6+ Kh7 57. Qf7 hxg3 58. hxg3 Kh8 59. Kg6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.23"]
[Round "6"]
[White "Oosthout, Wouter"]
[Black "De Leur, Ben"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "1850"]
[BlackElo "2107"]
[PlyCount "91"]
[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. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e5 7. Qd2 Nge7 8. Nh3 0-0 9. f4 exf4 10. Bxf4 a6 11. Bh6 b5 12. Bxg7 Kxg7 13. 0-0 Nd4 14. Nf4 b4 15. Ncd5 Bb7 16. Ne3 a5 17. c3 Ne6 18. a3 Qb6 19. Nc4 Qc7 20. Nd5 Bxd5 21. exd5 bxc3 22. bxc3 Nd8 23. Qf4 Nc8 24. Qf6+ Kg8 25. Rae1 Qd7 26. Re4 Re8 27. Bh3 Qa4 28. Ne5 Qxe4 29. dxe4 dxe5 30. Bxc8 Rxc8 31. Rb1 a4 32. Qa6 Rc7 33. Qxa4 Rf8 34. Rb8 Kg7 35. d6 Rb7 36. Rxb7 Nxb7 37. Qc6 Nd8 38. Qxc5 Ne6 39. Qxe5+ Kh6 40. Qf6 Nc5 41. Qf4+ g5 42. Qf6+ Kh5 43. g4+ Kh4 44. Qh6+ Kxg4 45. Qxf8 Nxe4 46. d7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.16"]
[Round "5"]
[White "Termeulen, Albert"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2061"]
[BlackElo "1850"]
[PlyCount "79"]
[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. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. d4 Bg4 6. f3 Bh5 7. Nc3 c6 8. g4 Nxg4 9. fxg4 Qh4+ 10. Kd2 Bxg4 11. Be2 Bxe2 12. Qxe2 Be7 13. Kd3 Na6 14. Be3 Ke8 15. Rhg1 g6 16. Kd2 Rf8 17. Rad1 Nc7 18. Kc1 Kd7 19. d5 cxd5 20. e5 Rf5 21. e6+ Ke8 22. Kb1 Qc4 23. Qg2 Bf6 24. Rgf1 Rxf1 25. Rxf1 Ke7 26. Bg5 Rf8 27. Rf4 Qc5 28. Bxf6+ Rxf6 29. Qg5 Ne8 30. Nxd5+ Qxd5 31. Qxd5 Rxf4 32. Qxb7+ Kxe6 33. a4 Nf6 34. Qxa7 g5 35. a5 Nd7 36. Qe3+ Kd5 37. Qe7 Kc6 38. Qxg5 Rd4 39. c3 Rd5 40. Qd8 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

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.02"]
[Round "3"]
[White "Oosthout, Wouter"]
[Black "Erwich, Frans"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1850"]
[BlackElo "2000"]
[PlyCount "112"]
[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. e4 c5 2. Nc3 e6 3. g3 d5 4. exd5 exd5 5. Bg2 Nf6 6. Nge2 d4 7. Ne4 Nxe4 8. Bxe4 Bd6 9. 0-0 Nd7 10. d3 Nf6 11. Bg2 0-0 12. Bf4 Bg4 13. Bd2 Re8 14. Re1 Qd7 15. f3 Bh3 16. Nf4 Bxf4 17. Bxf4 Rxe1+ 18. Qxe1 Bxg2 19. Kxg2 Re8 20. Qf2 Qe6 21. Bd2 Nd5 22. a3 Ne3+ 23. Bxe3 dxe3 24. Qe2 g5 25. h3 f5 26. Rd1 Rd8 27. c3 Qe5 28. b4 f4 29. gxf4 gxf4 30. Kh2 Kh8 31. d4 cxd4 32. Qd3 e2 33. Re1 Qe3 34. Qxe2 dxc3 35. Qxe3 fxe3 36. Rxe3 Rc8 37. Re1 c2 38. Rc1 Kg7 39. Kg3 Kf6 40. Kf4 Rc4+ 41. Ke3 Kf5 42. Kd3 Rc7 43. Rxc2 Rxc2 44. Kxc2 Kf4 45. Kd3 Kxf3 46. b5 Kg3 47. Kd4 Kxh3 48. Kc5 Kg4 49. b6 axb6+ 50. Kxb6 h5 51. a4 h4 52. a5 h3 53. Kxb7 h2 54. a6 h1Q+ 55. Kb8 Qb1+ 56. Kc7 Qa2 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.05.19"]
[Round "1"]
[White "Oosthout, Wouter"]
[Black "Van der Velden, Bram"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "1850"]
[BlackElo "2195"]
[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. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 7. Qd2 Nd4 8. Nf3 Ne7 9. 0-0 0-0 10. Ne1 Rb8 11. Nd1 b6 12. c3 Ndc6 13. f4 d5 14. Kh1 f5 15. Qc2 Ba6 16. exd5 exd5 17. Bg1 Kh8 18. Nf3 h6 19. Re1 d4 20. c4 Qd6 21. b3 Rfe8 22. Nb2 Ng8 23. Qd2 Nf6 24. h3 Nh5 25. Bh2 Re3 26. Qf2 Rbe8 27. Rad1 Qe6 28. Rxe3 dxe3 29. Qe2 Qf6 30. Na4 Nd4 31. Nxd4 Qxd4 32. Rb1 Re7 33. Bf3 Rd7 34. Nb2 b5 35. Kg2 bxc4 36. dxc4 Qd2 37. Kf1 Bxb2 38. Rxb2 Qc1+ 39. Kg2 Re7 40. Rc2 Qa1 41. g4 Nf6 42. g5 Nh5 43. gxh6 Qd4 44. Bxh5 gxh5 45. Qxh5 Qe4+ 46. Kg1 Qxc2 47. Bg3 Bb7 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.07.01"]
[Round "7"]
[White "Oosthout, Wouter"]
[Black "Bakker, Guido"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "1858"]
[BlackElo "1805"]
[PlyCount "55"]
[EventDate "2008.05.20"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 h6 9. Ne4 Nd5 10. Nec3 Be6 11. Ba4 Be7 12. d3 0-0 13. Qg3 Kh8 14. 0-0 Bd6 15. Nxd5 cxd5 16. Nc3 Qb6 17. Nb5 Bb8 18. Qe3 Qa6 19. b3 Rd8 20. Bd2 Bd7 21. Qc5 Rc8 22. Qxd5 Bc6 23. Qxf7 Bxb5 24. Bxb5 Qxb5 25. Bxh6 gxh6 26. Qf6+ Kh7 27. Qf5+ Kg7 28. Qxc8 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.24"]
[Round "6"]
[White "Oosterom, Erik"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "D27"]
[WhiteElo "2135"]
[BlackElo "1858"]
[PlyCount "101"]
[EventDate "2008.05.20"]
[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 dxc4 3. Nf3 a6 4. e3 e6 5. Bxc4 Nf6 6. 0-0 c5 7. Bb3 b5 8. a4 Bb7 9. axb5 axb5 10. Rxa8 Bxa8 11. dxc5 Qxd1 12. Rxd1 Bxf3 13. gxf3 Bxc5 14. Bd2 b4 15. Rc1 Nfd7 16. Rc4 Na6 17. Kg2 Ke7 18. f4 Nb6 19. Rc1 Rd8 20. Bd1 Bd6 21. Be2 Nb8 22. e4 Rc8 23. e5 Bc5 24. Rxc5 Rxc5 25. Bxb4 N6d7 26. Bxc5+ Nxc5 27. b4 Na4 28. Bb5 Nb6 29. Nc3 Kd8 30. Kf3 f5 31. exf6 gxf6 32. Ke4 f5+ 33. Kd4 N8d7 34. Bxd7 Nxd7 35. b5 Kc7 36. Na4 Kd6 37. Nb2 Nf6 38. Nc4+ Kd7 39. f3 Nd5 40. Ke5 Nb4 41. Kf6 Nc2 42. h4 Nd4 43. b6 Kc6 44. h5 h6 45. Kg6 Nxf3 46. Kxh6 e5 47. fxe5 f4 48. e6 Nd4 49. e7 Nf5+ 50. Kg5 Nxe7 51. Kxf4 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.17"]
[Round "5"]
[White "Oosthout, Wouter"]
[Black "De Mooij, Marco"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "1858"]
[BlackElo "1809"]
[PlyCount "39"]
[EventDate "2008.05.20"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 Nf6 7. h3 Rb8 8. Nce2 0-0 9. c3 Ne8 10. Nf3 e5 11. Be3 exf4 12. Nxf4 b5 13. a3 b4 14. axb4 cxb4 15. d4 bxc3 16. bxc3 Rb2 17. Nd2 Qg5 18. Qc1 Qb5 19. Bf1 Qb7 20. Ba6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.10"]
[Round "4"]
[White "Heemskerk, Wim"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "A99"]
[WhiteElo "2261"]
[BlackElo "1858"]
[PlyCount "65"]
[EventDate "2008.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 e6 4. c4 Be7 5. 0-0 0-0 6. d4 d6 7. b3 a5 8. Bb2 Na6 9. Nc3 Qe8 10. Re1 Qh5 11. e4 fxe4 12. Nxe4 Nxe4 13. Rxe4 Bf6 14. Ne1 Qxd1 15. Rxd1 Bd7 16. Nd3 Nb4 17. Nf4 d5 18. Re2 dxc4 19. bxc4 Ba4 20. Rf1 c6 21. Bh3 Nxa2 22. Bxe6+ Kh8 23. Ra1 Bb3 24. c5 a4 25. Rxa2 Bxa2 26. Bxa2 b5 27. cxb6 Rfb8 28. Nh5 Rxb6 29. Nxf6 gxf6 30. Bc3 a3 31. Re6 Rab8 32. Rxf6 Rb3 33. Rxc6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.03"]
[Round "3"]
[White "Oosthout, Wouter"]
[Black "Kubbenga, Michael"]
[Result "1-0"]
[ECO "C59"]
[WhiteElo "1858"]
[BlackElo "1936"]
[PlyCount "79"]
[EventDate "2008.05.20"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Bc5 11. f4 Qd4 12. Rf1 Bb6 13. c3 Qd6 14. Qa4 0-0 15. b4 Nb7 16. Qxc6 Qe7 17. Ba3 Be6 18. Ba6 Bd5 19. Qb5 e3 20. Qe2 Nd7 21. Bc4 Bxc4 22. Nxc4 exd2+ 23. Nbxd2 Qf6 24. Ne4 Qe6 25. f5 Qc6 26. b5 Qxb5 27. Bxf8 Kxf8 28. Nxb6 Qxb6 29. Rd1 Qc6 30. Rd4 Re8 31. Rf3 Nd6 32. Rxd6 Qxe4 33. Qxe4 Rxe4+ 34. Kf2 Ne5 35. Rg3 Rf4+ 36. Ke2 Rxf5 37. Ra6 g5 38. Rxa7 h5 39. Ra5 f6 40. Rf3 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.05.27"]
[Round "2"]
[White "Fakkert, Erwin"]
[Black "Oosthout, Wouter"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1661"]
[BlackElo "1858"]
[PlyCount "112"]
[EventDate "2008.05.20"]
[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 Nf6 2. e5 Nd5 3. c4 Nb6 4. Nc3 d6 5. exd6 cxd6 6. b3 g6 7. Bb2 Bg7 8. Nf3 0-0 9. Be2 Nc6 10. 0-0 e6 11. Qc1 f5 12. Nb5 Bxb2 13. Qxb2 a6 14. Nc3 Qf6 15. Qa3 Qe7 16. Rad1 e5 17. Nb5 axb5 18. Qb2 bxc4 19. bxc4 Nd7 20. d4 exd4 21. Nxd4 Nxd4 22. Rxd4 Qe5 23. Bf3 Nc5 24. Rfd1 Re8 25. h3 Ne6 26. Bd5 Kg7 27. Bxe6 Rxe6 28. Qb6 Qa5 29. Qb2 Qxa2 30. Qc3 Qa3 31. Qd2 Ra6 32. Qg5 Qa5 33. Rh4 Qc7 34. Qh6+ Kg8 35. Rd5 Re1+ 36. Kh2 Be6 37. Rd2 Bxc4 38. Qf4 Re4 39. Qg3 Rxh4 40. Qxh4 d5+ 41. g3 Re6 42. Qd4 b5 43. Rd1 Re4 44. Qf6 Qe7 45. Qb6 Qe5 46. Qd8+ Kg7 47. Qd7+ Qe7 48. Qc8 Qa7 49. Rd2 b4 50. Kg2 b3 51. Rb2 Qe7 52. h4 Qf6 53. Rb1 f4 54. Qc7+ Kh6 55. gxf4 Qxf4 56. Qd8 Qg4+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.05.20"]
[Round "1"]
[White "Oosthout, Wouter"]
[Black "De Leur, Ben"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1858"]
[BlackElo "2000"]
[PlyCount "100"]
[EventDate "2008.05.20"]
[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 g6 2. Nc3 Bg7 3. g3 c6 4. Bg2 Nh6 5. d3 0-0 6. Nge2 d6 7. h3 e5 8. Be3 f6 9. Qd2 Nf7 10. h4 Na6 11. 0-0 Be6 12. Kh2 d5 13. exd5 cxd5 14. d4 e4 15. Nf4 Qd7 16. Nxe6 Qxe6 17. f3 f5 18. Rae1 Nd6 19. b3 Nc7 20. Ne2 exf3 21. Nf4 fxg2 22. Nxe6 gxf1N+ 23. Rxf1 Nxe6 24. Qb4 Rfd8 25. Re1 b5 26. a3 a5 27. Qd2 Ne4 28. Qd3 Rac8 29. Re2 Rc3 30. Qxb5 Bxd4 31. Bxd4 Nxd4 32. Qxa5 Rcc8 33. Rg2 Nxc2 34. a4 Ne3 35. Re2 Ng4+ 36. Kg2 Ngf6 37. Qa6 Re8 38. a5 Rc3 39. Qb5 Rxg3+ 40. Kf1 Rg4 41. Rc2 Ng3+ 42. Kf2 Nge4+ 43. Kf1 Rxh4 44. a6 Rf4+ 45. Kg2 Rg4+ 46. Kf1 Ng3+ 47. Kf2 Nfe4+ 48. Kf3 Ng5+ 49. Kf2 Nh3+ 50. Kg2 Nf1+ 0-1

[Event "Leiden Noteboom Memorial 68th"]
[Site "Leiden"]
[Date "2008.02.02"]
[Round "3"]
[White "Oosthout, Wouter"]
[Black "Hortensius, Lisa"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1995"]
[BlackElo "1965"]
[PlyCount "64"]
[EventDate "2008.02.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 e6 2. g3 d5 3. exd5 exd5 4. Bg2 Nf6 5. Ne2 Be7 6. 0-0 Nc6 7. d3 Bf5 8. Nbc3 d4 9. Nb5 Bc5 10. Bf4 Rc8 11. b4 Bb6 12. a4 a6 13. Na3 Nxb4 14. Bxb7 Rb8 15. Bg2 0-0 16. Qd2 Bc5 17. Nc4 Re8 18. h3 Be6 19. Ne5 Nfd5 20. Rab1 f6 21. Nf3 g5 22. Nxg5 Nxf4 23. gxf4 fxg5 24. fxg5 Bd5 25. f3 Bf7 26. Ng3 Nd5 27. Rxb8 Qxb8 28. Nf5 Ne3 29. Nh6+ Kg7 30. Rf2 Qb1+ 31. Kh2 Bb4 32. Nf5+ Nxf5 0-1

[Event "Leiden LCT op 1st"]
[Site "Leiden"]
[Date "2007.07.13"]
[Round "1"]
[White "Oosthout, Wouter"]
[Black "De Graaff, RAG"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2000"]
[BlackElo "2233"]
[PlyCount "50"]
[EventDate "2007.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 g6 2. Nc3 Bg7 3. g3 d6 4. Bg2 Nf6 5. d3 Nc6 6. h3 e5 7. Be3 Nd4 8. Nce2 c5 9. c3 Nc6 10. Qd2 0-0 11. g4 b6 12. f4 exf4 13. Bxf4 Bb7 14. Ng3 Ne5 15. g5 Nh5 16. Nxh5 gxh5 17. Qe2 Ng6 18. Be3 d5 19. 0-0-0 dxe4 20. Qxh5 Qe7 21. Bxe4 Bxe4 22. dxe4 Qxe4 23. Qf3 Qa4 24. Kb1 Ne5 25. Qe2 Qe4+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.26"]
[Round "7"]
[White "Volders, Wessel"]
[Black "Oosthout, Wouter"]
[Result "1/2-1/2"]
[ECO "C56"]
[WhiteElo "1883"]
[BlackElo "1950"]
[PlyCount "98"]
[EventDate "2007.05.15"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. 0-0 Be7 6. Re1 d6 7. Nxd4 Ne5 8. Bb3 c6 9. h3 0-0 10. f4 Ng6 11. Nc3 Qc7 12. Qe2 Nd7 13. Nf5 Nc5 14. Be3 Nxb3 15. Nxe7+ Qxe7 16. axb3 b5 17. b4 a6 18. e5 Re8 19. exd6 Qxd6 20. Bc5 Rxe2 21. Bxd6 Rxe1+ 22. Rxe1 Bf5 23. Re2 h5 24. Ne4 Rd8 25. Bc7 Rd4 26. Ng3 Bd7 27. c3 Rd1+ 28. Kf2 h4 29. Nf1 Be6 30. Ne3 Rd7 31. Bb8 Ne7 32. Ke1 Kh7 33. Rd2 Rxd2 34. Kxd2 Bd5 35. Bc7 f6 36. Kd3 Kg6 37. Bd8 Nf5 38. Nxd5 cxd5 39. Bc7 Kf7 40. Bb6 Ke6 41. Bf2 Kd6 42. b3 Ke6 43. c4 dxc4+ 44. bxc4 bxc4+ 45. Kxc4 Nd6+ 46. Kd4 g5 47. fxg5 fxg5 48. Be1 Nf5+ 49. Ke4 Nd6+ 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.19"]
[Round "6"]
[White "Oosthout, Wouter"]
[Black "Sahakjan, Hambartsum"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1950"]
[BlackElo "1850"]
[PlyCount "76"]
[EventDate "2007.05.15"]
[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 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. cxd5 Nxd5 8. Qb3 Bxf3 9. gxf3 Nb6 10. Be3 e6 11. 0-0-0 Qc8 12. Kb1 Be7 13. Rg1 g6 14. Bh3 Qc7 15. Nb5 Qxh2 16. Rg3 0-0 17. Bxe6 fxe6 18. Qxe6+ Rf7 19. Rh3 Qg2 20. Rdh1 Nd8 21. Qb3 Kh8 22. d5 Bf6 23. Qd1 Be5 24. f4 Qe4+ 25. Ka1 Bxf4 26. Rh4 Qxd5 27. Qc2 Qc6 28. Bd4+ Kg8 29. Qe2 a6 30. Nc3 Ne6 31. Bxb6 Qxb6 32. Nd5 Qc6 33. Qe4 Rc8 34. Qxg6+ Kf8 35. a3 Qxd5 36. Rxh7 Rxh7 37. Qxh7 Qxh1+ 38. Qxh1 Rc1+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.12"]
[Round "5"]
[White "De Mooij, Marco"]
[Black "Oosthout, Wouter"]
[Result "0-1"]
[ECO "C83"]
[WhiteElo "1786"]
[BlackElo "1950"]
[PlyCount "46"]
[EventDate "2007.05.15"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Be3 Be7 10. c3 0-0 11. Bc2 Qd7 12. Nbd2 f5 13. exf6 Nxf6 14. Nb3 Bg4 15. Bg5 h6 16. Bh4 Bd6 17. Bxf6 Rxf6 18. Qxd5+ Be6 19. Qd3 Bf5 20. Qd5+ Kh8 21. Be4 Re8 22. Qxc6 Bxh2+ 23. Kxh2 Rxc6 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.05"]
[Round "4"]
[White "Oosthout, Wouter"]
[Black "Kamps, JW."]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1950"]
[BlackElo "2015"]
[PlyCount "127"]
[EventDate "2007.05.15"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bd2 Bf5 7. b4 Qc7 8. g3 e6 9. a3 Nbd7 10. Bg2 Bd6 11. 0-0 0-0 12. Nh4 Bg4 13. Qc1 Nb6 14. h3 Bh5 15. g4 Bg6 16. Nxg6 hxg6 17. Ne2 Nc4 18. Bf4 Nd5 19. Bd2 Rfe8 20. Be4 f5 21. Bd3 b5 22. c3 Kf7 23. Bxc4 bxc4 24. f4 Rh8 25. Rf3 Rh4 26. gxf5 gxf5 27. Qf1 Rah8 28. Be1 R4h6 29. Bd2 Nf6 30. Kf2 Ne4+ 31. Ke1 Be7 32. Be3 Bh4+ 33. Kd1 c5 34. Kc2 Qc6 35. dxc5 Qa4+ 36. Kc1 Rd8 37. Nd4 Nxc3 38. Qxc4 Qd1+ 39. Kb2 Rxd4 40. Qxc3 Qe2+ 41. Qc2 Rd2 42. Bxd2 Qxf3 43. c6 Bf6+ 44. Kb1 Rxh3 45. c7 Rh8 46. Ra2 Rc8 47. Qc4 Qd5 48. Rc2 Qxc4 49. Rxc4 Ke7 50. b5 Kd7 51. Be3 Rxc7 52. Rxc7+ Kxc7 53. Bxa7 Kb7 54. Be3 e5 55. fxe5 Bxe5 56. a4 f4 57. Bf2 Bc7 58. Kc2 g5 59. Kd3 g4 60. Ke2 f3+ 61. Kf1 g3 62. Be3 Bb6 63. Bxb6 Kxb6 64. Kg1 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.05.22"]
[Round "2"]
[White "De Leur, Ben"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2052"]
[BlackElo "1950"]
[PlyCount "109"]
[EventDate "2007.05.15"]
[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 c5 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 Nxd5 5. g3 g6 6. Bg2 Bg7 7. 0-0 0-0 8. Nxd5 Qxd5 9. d3 Na6 10. a3 Rb8 11. Bf4 Ra8 12. Rb1 Qh5 13. Re1 Rd8 14. Qb3 Qd5 15. Qxd5 Rxd5 16. Nd2 Rd7 17. Nc4 Nc7 18. Ne5 Bxe5 19. Bxe5 Ne6 20. b4 f6 21. Bc3 Rb8 22. bxc5 Nxc5 23. Bb4 Ne6 24. Rec1 Kf7 25. Rc4 Rc7 26. Rxc7 Nxc7 27. Rc1 Ne8 28. d4 Bd7 29. e4 Rc8 30. Rxc8 Bxc8 31. f4 b6 32. Kf2 a5 33. Bc3 Nd6 34. e5 Nc4 35. a4 fxe5 36. fxe5 Bd7 37. Bd5+ Be6 38. Bc6 Bf5 39. d5 Be4 40. e6+ Kf8 41. Bd4 Kg8 42. g4 g5 43. Kg3 Kf8 44. h4 gxh4+ 45. Kxh4 Kg8 46. Kg5 Kf8 47. Kf4 Bg2 48. g5 Bh3 49. Ke4 Nd6+ 50. Kf3 Nc4 51. Bb5 Bf1 52. Kf2 Bd3 53. Ke1 Kg8 54. d6 exd6 55. e7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.05.15"]
[Round "1"]
[White "Oosthout, Wouter"]
[Black "Zwaan, Gert Jan"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1950"]
[BlackElo "1511"]
[PlyCount "57"]
[EventDate "2007.05.15"]
[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. Nc3 a6 3. g3 b5 4. Bg2 Bb7 5. d3 f5 6. Nf3 b4 7. Na4 Qa5 8. b3 fxe4 9. Ne5 Nf6 10. dxe4 d6 11. Nc4 Qc7 12. Nab6 Ra7 13. Nd5 Bxd5 14. exd5 Nbd7 15. Bb2 g6 16. Qe2 Bg7 17. Rd1 0-0 18. 0-0 Nb6 19. Ne3 Qc8 20. h3 Rc7 21. g4 h6 22. f4 c4 23. Bd4 Rc5 24. Kh1 cxb3 25. Bxc5 Qxc5 26. cxb3 Qc8 27. Rc1 Qb7 28. Qd3 Ne8 29. Qxg6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.27"]
[Round "7"]
[White "Oosthout, Wouter"]
[Black "Zwinkels, Wim"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "1884"]
[BlackElo "1910"]
[PlyCount "121"]
[EventDate "2006.05.16"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. f4 Nge7 8. Nh3 0-0 9. 0-0 Rb8 10. Qd2 b5 11. Nd1 b4 12. g4 f5 13. gxf5 exf5 14. e5 dxe5 15. Bxc5 e4 16. c3 bxc3 17. bxc3 Ba6 18. d4 Bxf1 19. Bxf1 h6 20. Ne3 Na5 21. Bxa7 Rc8 22. Qb2 Nd5 23. Nxd5 Qxd5 24. Bc5 Rxc5 25. dxc5 Qxc5+ 26. Kh1 Qxc3 27. Qxc3 Bxc3 28. Rd1 Rb8 29. a4 Rb6 30. Rd8+ Kf7 31. Bb5 Nb3 32. Rd7+ Ke6 33. Rh7 Kd5 34. Rd7+ Ke6 35. Rh7 e3 36. Rxh6 Kd5 37. Ng1 Ke4 38. Rh7 Nd4 39. Re7+ Kxf4 40. Kg2 g5 41. Nh3+ Kg4 42. Rxe3 Bd2 43. Rd3 Nxb5 44. Rxd2 Nc3 45. Rc2 Ne4 46. Nf2+ Kf4 47. a5 Ra6 48. Ra2 Ke3 49. Ra3+ Kd4 50. Nd3 Kc4 51. Ne5+ Kb5 52. Nf3 Rxa5 53. Nd4+ Kb6 54. Rxa5 Kxa5 55. Nxf5 Kb5 56. Kf3 Nf6 57. Nd6+ Kc6 58. Ne4 Nxe4 59. Kxe4 Kd6 60. Kf5 Ke7 61. Kxg5 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.20"]
[Round "6"]
[White "Van Vliet, Jeffrey"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2295"]
[BlackElo "1884"]
[PlyCount "33"]
[EventDate "2006.05.16"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. dxe5 Bb4 6. Nge2 Qxe5 7. Be3 Nf6 8. a3 Ba5 9. Bd4 Qe7 10. Qd3 Nbd7 11. 0-0-0 0-0 12. Qg3 c5 13. Nd5 Qe6 14. Nef4 Qd6 15. Bxf6 Nxf6 16. Ng6 Qxg3 17. Nde7# 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.13"]
[Round "5"]
[White "Oosthout, Wouter"]
[Black "Verheijen, Jan"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "1884"]
[BlackElo "1611"]
[PlyCount "59"]
[EventDate "2006.05.16"]
[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. Nc3 Nc6 3. g3 Nf6 4. Bg2 d6 5. d3 g6 6. Nh3 Bg4 7. f3 Bd7 8. Be3 Bg7 9. Qd2 a6 10. Ne2 Ne5 11. Nf2 Qb6 12. c3 Qb5 13. h3 0-0 14. g4 Rac8 15. f4 Nc6 16. Ng3 e5 17. f5 gxf5 18. gxf5 c4 19. Ng4 cxd3 20. Nxf6+ Bxf6 21. Bh6 Bh4 22. 0-0-0 Nd4 23. Kb1 Ne2 24. Nxe2 dxe2 25. Rde1 Rfd8 26. Bf3 f6 27. Reg1+ Kf7 28. Rg7+ Ke8 29. Bxe2 Qb6 30. Bh5+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.06"]
[Round "4"]
[White "Oosthout, Wouter"]
[Black "Helfferich, Gert"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1884"]
[BlackElo "944"]
[PlyCount "49"]
[EventDate "2006.05.16"]
[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 e5 2. Nf3 Nc6 3. Bc4 h6 4. d4 d6 5. d5 Na5 6. Bd3 b6 7. c4 Bg4 8. Nbd2 Nf6 9. b4 Bxf3 10. gxf3 Nb7 11. Nb3 a5 12. bxa5 bxa5 13. a4 Be7 14. Rg1 0-0 15. Bxh6 Nh5 16. f4 Nxf4 17. Rxg7+ Kh8 18. Rg3 Bh4 19. Bxf4 Bxg3 20. Qh5+ Kg8 21. Bxg3 Qd7 22. Ke2 Kg7 23. Bh4 Rh8 24. Rg1+ Kf8 25. Qxh8# 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.05.30"]
[Round "3"]
[White "Stork, Ornett J"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "2125"]
[BlackElo "1884"]
[PlyCount "31"]
[EventDate "2006.05.16"]
[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 dxc4 3. e4 e5 4. Nf3 Bb4+ 5. Nc3 exd4 6. Nxd4 Nf6 7. Qa4+ Nc6 8. Nxc6 Bxc3+ 9. bxc3 Bd7 10. Nxd8 Bxa4 11. Nxb7 Nxe4 12. Bxc4 Rb8 13. 0-0 0-0 14. Ba3 Rfe8 15. Nc5 Nd2 16. Nxa4 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.05.23"]
[Round "2"]
[White "Oosthout, Wouter"]
[Black "De Leur, Ben"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1884"]
[BlackElo "2024"]
[PlyCount "110"]
[EventDate "2006.05.16"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e6 7. Be3 Nge7 8. Nh3 0-0 9. 0-0 Nd4 10. Qd2 Rb8 11. Nd1 Nec6 12. c3 Nb5 13. Kh1 Qe7 14. g4 f5 15. gxf5 exf5 16. Ndf2 Bd7 17. Rae1 Qf7 18. a4 Nc7 19. e5 dxe5 20. Bxc5 Rfe8 21. Bd6 Rbc8 22. Ng5 Qb3 23. fxe5 Nxe5 24. c4 h6 25. Bxc7 Rxc7 26. Bd5+ Kh8 27. Rxe5 Rxe5 28. Nf7+ Kh7 29. Nxe5 Bxe5 30. d4 Bg7 31. Qf4 Rc8 32. Re1 Qb4 33. Nd3 Qxa4 34. Nc5 Qb4 35. Re7 Re8 36. Qe5 Rxe7 37. Qxe7 Bc6 38. Qf7 Qe1+ 39. Kg2 Qe2+ 40. Kg1 Qe3+ 41. Kf1 Qc1+ 42. Kf2 Qxb2+ 43. Ke1 Qc3+ 44. Kf1 Bxd5 45. cxd5 Qxd4 46. Nd7 Qf4+ 47. Ke1 Qe3+ 48. Kd1 Qg1+ 49. Kc2 Qxh2+ 50. Kd3 Qd6 51. Kc4 a6 52. Nc5 b5+ 53. Kb4 h5 54. Qe6 Bf8 55. Qe3 f4 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.05.16"]
[Round "1"]
[White "Landheer, Ronald"]
[Black "Oosthout, Wouter"]
[Result "0-1"]
[ECO "A10"]
[BlackElo "1884"]
[PlyCount "90"]
[EventDate "2006.05.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 f5 2. g3 Nf6 3. c4 Nc6 4. d4 e6 5. Bg2 d6 6. 0-0 Ne7 7. Nc3 h6 8. Ne1 c6 9. e4 g6 10. Nd3 Bg7 11. e5 dxe5 12. dxe5 Nd7 13. f4 0-0 14. Be3 Kh7 15. Qe2 Rh8 16. Rfd1 Qe8 17. Nc5 Nf8 18. Rd2 b6 19. Nb3 Rb8 20. Rad1 Bb7 21. Rd6 Rg8 22. a4 g5 23. a5 gxf4 24. gxf4 c5 25. Bxb7 Rxb7 26. Kf1 Nc6 27. Qf3 Rc7 28. Nb5 Rc8 29. axb6 axb6 30. Ra1 Ng6 31. Ra6 Bf8 32. Rxb6 Ngxe5 33. fxe5 Nxe5 34. Qf4 Ng4 35. Bxc5 Bxd6 36. Nxd6 Qd8 37. Rb7+ Rc7 38. Rxc7+ Qxc7 39. h3 Rb8 40. hxg4 Rxb3 41. Bd4 Qc6 42. Ke1 Qh1+ 43. Ke2 Qg2+ 44. Kd1 Rd3+ 45. Kc1 Qh1+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.07.07"]
[Round "7"]
[White "Oosthout, Wouter"]
[Black "Stork, Ornett J"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1848"]
[BlackElo "2120"]
[PlyCount "72"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Be3 c6 4. Nd2 d5 5. Be2 Nh6 6. c3 0-0 7. f3 f6 8. Qc2 a5 9. Bd3 e5 10. Ne2 Be6 11. a4 Nd7 12. 0-0 dxe4 13. Nxe4 Nf5 14. Bf2 Bh6 15. Rad1 Ne3 16. Bxe3 Bxe3+ 17. Kh1 Qe7 18. Rde1 Bh6 19. Nd2 Qf7 20. f4 exf4 21. Nxf4 Bxf4 22. Rxf4 Rae8 23. Ref1 f5 24. c4 Nf6 25. b3 Qg7 26. Qc3 g5 27. R4f2 f4 28. Be2 Qh6 29. Kg1 Bd7 30. Nf3 Ng4 31. Qxa5 Nxf2 32. Rxf2 g4 33. Ne5 g3 34. hxg3 fxg3 35. Rxf8+ Rxf8 36. Nf3 Rxf3 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.06.30"]
[Round "6"]
[White "De Leur, Ben"]
[Black "Oosthout, Wouter"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1971"]
[BlackElo "1848"]
[PlyCount "122"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 Nxd5 5. Nxd5 Qxd5 6. g3 g6 7. Bg2 Bg7 8. 0-0 0-0 9. d3 Rd8 10. Be3 Nc6 11. Rc1 Qxa2 12. Bxc5 Be6 13. Nd2 Bd5 14. e4 Be6 15. Ba3 Bxb2 16. Bxb2 Qxb2 17. Nf3 Bb3 18. Rb1 Bxd1 19. Rxb2 Bxf3 20. Bxf3 Rxd3 21. Be2 Rd7 22. Rfb1 b6 23. Bb5 Rd6 24. f4 Rad8 25. Ba4 Na5 26. e5 Rd2 27. Rxd2 Rxd2 28. Rc1 a6 29. Rc8+ Kg7 30. Ra8 Ra2 31. Bd7 Nb7 32. Ra7 Nc5 33. Be8 Kf8 34. Ra8 Rd2 35. Bb5+ Kg7 36. Bxa6 Ra2 37. Bb7 Rxa8 38. Bxa8 f6 39. exf6+ Kxf6 40. Kf2 Ke6 41. Ke3 Kd6 42. Kd4 b5 43. h3 Ne6+ 44. Ke4 b4 45. Bd5 b3 46. g4 b2 47. Ba2 Kc5 48. h4 Nd4 49. Ke3 Nb5 50. Kd3 Na3 51. f5 gxf5 52. g5 Nc4 53. h5 Ne5+ 54. Kc2 f4 55. Kd2 Nf3+ 56. Ke2 Nxg5 57. h6 Kd4 58. Bb1 e5 59. Kf2 e4 60. Ke2 Nf7 61. Kf2 Nxh6 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.06.09"]
[Round "4"]
[White "Oosthout, Wouter"]
[Black "Irwin, Mark"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "1848"]
[BlackElo "2214"]
[PlyCount "48"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 c5 3. Nf3 cxd4 4. Nxd4 a6 5. g3 b5 6. Bg2 Bb7 7. 0-0 Qc7 8. Be3 Nf6 9. Nd2 d5 10. f3 Bc5 11. c3 Nbd7 12. Rc1 h5 13. exd5 e5 14. Nc2 h4 15. Nb3 Bxe3+ 16. Nxe3 Qb6 17. Qe2 hxg3 18. hxg3 Nh5 19. Kf2 Qg6 20. Rh1 Qxg3+ 21. Kf1 Qg6 22. Ke1 0-0-0 23. Qf2 Nf4 24. Rxh8 Nd3+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.06.02"]
[Round "3"]
[White "Keessen, Aldert Jan"]
[Black "Oosthout, Wouter"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2166"]
[BlackElo "1848"]
[PlyCount "117"]
[EventDate "2004.05.19"]
[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 d5 2. c4 c6 3. Nc3 Nf6 4. e3 a6 5. Qc2 g6 6. Bd3 Bg7 7. Nf3 e6 8. 0-0 0-0 9. b3 Re8 10. Bb2 Nbd7 11. Rfd1 b5 12. Ne2 Bb7 13. h3 Rc8 14. c5 Nf8 15. Ng3 Rc7 16. Bf1 Rce7 17. Nd2 N6d7 18. e4 f6 19. Bd3 Nb8 20. a4 f5 21. e5 Rc7 22. Bc3 Rf7 23. f4 Bh6 24. Ne2 g5 25. fxg5 Bxg5 26. Nf3 Be3+ 27. Kh1 Rg7 28. Bd2 Bxd2 29. Qxd2 Ree7 30. Nf4 Qe8 31. Ng1 Kh8 32. Be2 Bc8 33. Bf3 Nbd7 34. Nge2 Rg8 35. Rg1 Ng6 36. g3 Qf8 37. Kh2 Qe8 38. Rg2 Rf7 39. Nd3 Rfg7 40. Nef4 Qf7 41. Qf2 Qe7 42. axb5 Nxf4 43. Nxf4 axb5 44. Ra7 Qe8 45. Bh5 Qe7 46. Rc7 Rg5 47. Be2 Qe8 48. h4 R5g7 49. Bh5 Rg6 50. Bxg6 hxg6 51. Nh3 Rg7 52. Qe3 g5 53. Nxg5 Nf6 54. exf6 Rxc7 55. Qe5 Rf7 56. Ra2 Kg8 57. Nxf7 Kxf7 58. Ra7+ Bd7 59. Qd6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.05.26"]
[Round "2"]
[White "Oosthout, Wouter"]
[Black "Plug, Arjan JH"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "1848"]
[BlackElo "1918"]
[PlyCount "41"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e6 2. c4 Nc6 3. Nc3 Nf6 4. Nf3 d6 5. d4 e5 6. h3 Be7 7. Be3 a5 8. Qc2 0-0 9. Rd1 Bd7 10. Qb1 exd4 11. Nxd4 Qc8 12. g4 Nxd4 13. Bxd4 Bc6 14. f3 Re8 15. Bd3 g6 16. 0-0 Nd7 17. Nd5 Bxd5 18. cxd5 Ne5 19. Be2 c5 20. Bxe5 dxe5 21. d6 1-0

