[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "2"]
[White "Schermer, J."]
[Black "Van Oostrum, Gerrit"]
[Result "1/2-1/2"]
[ECO "E91"]
[PlyCount "57"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 0-0 6. Be2 c5 7. dxc5 dxc5 8. Qxd8 Rxd8 9. Be3 Na6 10. 0-0 Bg4 11. h3 Bxf3 12. Bxf3 e5 13. Rad1 b6 14. Nb5 Nb4 15. Rxd8+ Rxd8 16. Nxa7 Nc2 17. Nb5 Nxe3 18. fxe3 Bh6 19. Nc3 Bxe3+ 20. Kh2 Rd2 21. Na4 Kg7 22. Rb1 Rd6 23. a3 Nd7 24. Nc3 f5 25. Nd5 Bd4 26. b3 Nf6 27. exf5 Nxd5 28. Bxd5 gxf5 29. Rf1 1/2-1/2

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "6"]
[White "Seewald, Pieter C"]
[Black "Van Oostrum, Gerrit"]
[Result "1-0"]
[ECO "A56"]
[PlyCount "117"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Bd3 Nbd7 7. Nge2 0-0 8. f3 Ne8 9. Be3 g6 10. Qd2 Ng7 11. Bh6 Kh8 12. 0-0-0 Nf6 13. g3 Ng8 14. Be3 Bd7 15. f4 f6 16. Rdf1 a6 17. f5 b5 18. g4 Qa5 19. Kb1 bxc4 20. Bxc4 Bb5 21. Bb3 Qb4 22. Rf2 a5 23. Nxb5 Qxe4+ 24. Bc2 Qxh1+ 25. Nc1 Rab8 26. Nc3 g5 27. Qe2 Rb4 28. Rf1 Qxf1 29. Qxf1 Rfb8 30. b3 Rxg4 31. Be4 Rh4 32. Qg2 Nh5 33. N1e2 Nf4 34. Nxf4 gxf4 35. Bf2 Rh5 36. h4 c4 37. Kc2 cxb3+ 38. axb3 Bd8 39. Qf3 Rh6 40. Qd3 Bb6 41. Bxb6 Rxb6 42. Qh3 Rb4 43. h5 Ne7 44. Qf3 Nc8 45. Qe2 Nb6 46. Bf3 a4 47. bxa4 Nxa4 48. Nxa4 Rxa4 49. Qb5 Ra3 50. Bd1 f3 51. Kb2 Re3 52. Qe8+ Kg7 53. Qe7+ Kg8 54. Qe8+ Kg7 55. Qe7+ Kg8 56. Qe8+ Kg7 57. Ba4 f2 58. Qe7+ Kg8 59. Bd7 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "3"]
[White "Van Oostrum, Gerrit"]
[Black "De Geus, Gerard"]
[Result "0-1"]
[ECO "B25"]
[PlyCount "140"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 d6 6. Nf3 e6 7. 0-0 Nge7 8. d3 Bd7 9. Rb1 Rb8 10. Be3 Nd4 11. Ne2 Nec6 12. c3 Nxe2+ 13. Qxe2 b5 14. e5 b4 15. c4 Qb6 16. exd6 Nd4 17. Nxd4 cxd4 18. Bd2 Qxd6 19. Rbe1 f5 20. Bf3 Kf7 21. Qg2 Rhc8 22. Re2 Rb6 23. Bc1 Rcb8 24. Rfe1 Ra6 25. b3 Rab6 26. g4 Re8 27. gxf5 exf5 28. Rxe8 Bxe8 29. Bd5+ Kf8 30. Re6 Qd8 31. Rxb6 Qxb6 32. Qe2 Bf7 33. Bf3 Qd6 34. Kg2 Bh6 35. Qe1 Bxf4 36. Bxf4 Qxf4 37. Qxb4+ Kg7 38. Qe7 Qd2+ 39. Qe2 Qg5+ 40. Kf1 Qf4 41. Kg2 h5 42. c5 g5 43. Bxh5 Bxh5 44. Qxh5 g4 45. Qh4 Qf3+ 46. Kg1 Qxd3 47. Qg5+ Kf7 48. Qh5+ Ke6 49. Qg6+ Kd5 50. Qd6+ Ke4 51. c6 Qb1+ 52. Kg2 Qxa2+ 53. Kg1 Qb1+ 54. Kg2 Qc2+ 55. Kg1 Qd1+ 56. Kg2 Qe2+ 57. Kg1 Qd1+ 58. Kg2 Qc2+ 59. Kg1 d3 60. c7 d2 61. Qxd2 Qxd2 62. c8Q Qd1+ 63. Kg2 Qxb3 64. Qa8+ Qd5 65. Qxa7 Qd2+ 66. Kf1 Qf4+ 67. Ke2 Qxh2+ 68. Kf1 Qf4+ 69. Ke2 Qf3+ 70. Kd2 Qd3+ 0-1

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "7"]
[White "Van Oostrum, Gerrit"]
[Black "Meier, Volker"]
[Result "1/2-1/2"]
[ECO "B13"]
[BlackElo "2240"]
[PlyCount "95"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 g6 7. Nf3 Bg7 8. h3 Bf5 9. Bxf5 gxf5 10. Qb3 Qd7 11. Ne5 Nxe5 12. Bxe5 Nh5 13. Bxg7 Nxg7 14. 0-0 0-0 15. Nd2 Rac8 16. Nf3 f6 17. Rfe1 e6 18. Re2 Rc6 19. Ne1 b6 20. Nd3 Nh5 21. Rae1 Re8 22. Qd1 Qf7 23. Qd2 Qg6 24. Kh2 h6 25. Nf4 Nxf4 26. Qxf4 Qg5 27. Qf3 Kf7 28. Qe3 Qxe3 29. Rxe3 h5 30. Kg1 a5 31. Kf1 b5 32. a3 Rb8 33. Ra1 Rcc8 34. Ke1 Rc7 35. Kd2 Rc4 36. f4 Rc6 37. Rg1 Rbc8 38. g4 Rg8 39. Reg3 hxg4 40. hxg4 Rxg4 41. Rxg4 fxg4 42. Rxg4 Rc8 43. Rg2 Rg8 44. Rf2 Rg3 45. b4 a4 46. f5 e5 47. dxe5 fxe5 48. f6 1/2-1/2

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "1"]
[White "Van Oostrum, Gerrit"]
[Black "Roet, Siem"]
[Result "1/2-1/2"]
[ECO "B06"]
[PlyCount "64"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be2 Nc6 5. Be3 e5 6. dxe5 Nxe5 7. Nf3 Nxf3+ 8. Bxf3 Nf6 9. Qd2 h6 10. Rd1 Bd7 11. 0-0 g5 12. Bd4 g4 13. Be2 Nh5 14. Bxg7 Nxg7 15. f4 h5 16. Qd4 Kf8 17. f5 Rh6 18. Qd2 Rh8 19. Nd5 Ne8 20. Qd4 Rh6 21. Qe3 Rh8 22. e5 c6 23. Nc3 Qb6 24. Qxb6 axb6 25. a3 d5 26. Bd3 Ke7 27. Rde1 Rh6 28. Ne2 c5 29. f6+ Kd8 30. Bf5 Nc7 31. Bxd7 Kxd7 32. Rf5 Ne6 1/2-1/2

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "4"]
[White "Van Oostrum, Gerrit"]
[Black "Strik, Aart"]
[Result "0-1"]
[ECO "C65"]
[PlyCount "74"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 Bd7 7. Qe2 a6 8. Ba4 b5 9. Bc2 Bg4 10. Be3 Nd7 11. Nbd2 0-0 12. b4 Bxe3 13. fxe3 Ne7 14. h3 Bh5 15. g4 Bg6 16. Nh4 Nd5 17. exd5 Qxh4 18. Qg2 Qg5 19. Rae1 f5 20. Nf3 Qe7 21. g5 e4 22. Nh4 Qe5 23. Nxg6 hxg6 24. dxe4 Qxc3 25. exf5 gxf5 26. Bxf5 Rxf5 27. Qg4 Rxf1+ 28. Rxf1 Qxe3+ 29. Kh1 Rf8 30. Rxf8+ Nxf8 31. h4 Qe1+ 32. Kg2 Qd2+ 33. Kg3 Qxd5 34. h5 Qe5+ 35. Kg2 Qb2+ 36. Kf1 Qc1+ 37. Kf2 Qc4 0-1

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "5"]
[White "Zweers, T."]
[Black "Van Oostrum, Gerrit"]
[Result "0-1"]
[ECO "A57"]
[PlyCount "36"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nc3 b4 5. Na4 d6 6. b3 g6 7. e3 Bg7 8. Nb2 0-0 9. Bd3 e6 10. dxe6 fxe6 11. Ne2 Nc6 12. Ng3 Ne5 13. Rb1 Bb7 14. 0-0 Nfg4 15. Qe2 Nxh2 16. f3 Qh4 17. Ne4 Nxf1 18. Kxf1 Bxe4 0-1

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "2"]
[White "Strating, Sybolt"]
[Black "Van Oostrum, Gerrit"]
[Result "0-1"]
[ECO "A73"]
[PlyCount "107"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Be2 Bg7 8. Nf3 0-0 9. 0-0 Bg4 10. Nd2 Bxe2 11. Qxe2 Re8 12. Nc4 b5 13. Nxb5 Nxe4 14. Qc2 a6 15. Nc3 Nxc3 16. bxc3 Qf6 17. Qa4 Re4 18. f3 Re2 19. Bd2 Ra7 20. Rab1 Qd8 21. Bf4 Bxc3 22. Bxd6 Bd4+ 23. Kh1 Nd7 24. Rbe1 Qe8 25. Qd1 Rxe1 26. Rxe1 Qa8 27. Ne3 Nf6 28. Bf4 Nxd5 29. Nxd5 Qxd5 30. Bh6 Ra8 31. Qa4 Qd8 32. Qc6 Rb8 33. g3 a5 34. f4 Rc8 35. Qe4 Bg7 36. Bxg7 Kxg7 37. Rc1 Qd6 38. Kg1 Rc7 39. Qc4 Qd2 40. Rc2 Qb4 41. Kf2 Qxc4 42. Rxc4 Kf6 43. Ke3 Ke6 44. Kd3 Kd5 45. Rc2 Re7 46. Rf2 c4+ 47. Kc3 Re3+ 48. Kd2 Ra3 49. Kc1 Kd4 50. Rd2+ Rd3 51. Re2 Kc3 52. Rc2+ Kb4 53. Rb2+ Kc5 54. Rd2 0-1

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "1"]
[White "Van Oostrum, Gerrit"]
[Black "Driessen, Wim"]
[Result "1/2-1/2"]
[ECO "C55"]
[PlyCount "39"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. h3 d5 7. exd5 Nxd5 8. Bxd5 Qxd5 9. Nc3 Qd8 10. Re1 Bf6 11. Ne4 Be7 12. Ng3 Bd6 13. Bg5 f6 14. Bd2 Bc5 15. Be3 Bxe3 16. fxe3 Be6 17. e4 Qd7 18. Kh2 Rad8 19. Qe2 Nd4 20. Nxd4 1/2-1/2

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "3"]
[White "Van Oostrum, Gerrit"]
[Black "Rijnbergen, Michel"]
[Result "1/2-1/2"]
[ECO "B80"]
[PlyCount "70"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. 0-0 a6 9. Kh1 Be7 10. Be3 0-0 11. f4 Qc7 12. Qf3 b5 13. a3 Qb7 14. Rae1 Rac8 15. f5 e5 16. Nde2 Rfd8 17. Bc1 a5 18. g4 Nc5 19. Ng3 b4 20. axb4 axb4 21. g5 bxc3 22. gxf6 Bxf6 23. bxc3 Bh4 24. Rg1 Bxg3 25. Qxg3 f6 26. Qh4 Rc7 27. Qxf6 Rf8 28. Qh4 Rxf5 29. Rg2 Rff7 30. Ba3 Qc6 31. h3 Rf4 32. Qd8+ Rf8 33. Qh4 Rf4 34. Qd8+ Rf8 35. Qh4 Rf4 1/2-1/2

