[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.04"]
[Round "2"]
[White "Van der Straeten, Lieven"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "1809"]
[BlackElo "1650"]
[PlyCount "115"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 d6 3. Bc4 e5 4. d3 c6 5. f4 Be7 6. Nf3 Qc7 7. 0-0 Nbd7 8. Bb3 Nc5 9. Qe1 Be6 10. fxe5 dxe5 11. Qg3 Bxb3 12. axb3 Ncd7 13. Be3 b6 14. Nh4 g6 15. Nf3 Nh5 16. Qh3 Nf4 17. Bxf4 exf4 18. d4 Qd6 19. e5 Qe6 20. Qxe6 fxe6 21. Ne4 0-0 22. Nfg5 Rf5 23. Nxe6 c5 24. c3 cxd4 25. cxd4 Nxe5 26. Nxf4 Ng4 27. Ne6 Ne3 28. Rxf5 gxf5 29. Nc3 Kf7 30. Nc7 Rg8 31. N7d5 Nxg2 32. Nxe7 Kxe7 33. Rxa7+ Kd6 34. Rxh7 Nf4+ 35. Kf2 Nd3+ 36. Ke3 Nc1 37. Rh6+ Kc7 38. Nd5+ Kd8 39. Rd6+ Ke8 40. Nf6+ Ke7 41. Nxg8+ Kxd6 42. Nh6 Ke6 43. h4 Nxb3 44. h5 f4+ 45. Ke4 f3 46. d5+ Kf6 47. Ng4+ Kg5 48. Nf2 Kxh5 49. Kxf3 Kg5 50. Ke4 Kf6 51. Ng4+ Ke7 52. Ke5 Nc5 53. d6+ Kd7 54. Kd5 Nd3 55. Ne5+ Nxe5 56. Kxe5 b5 57. b4 Kd8 58. Kd5 1-0

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.03"]
[Round "1"]
[White "Duivenvoorden, Ben"]
[Black "Berghuis, Marten"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1650"]
[BlackElo "2031"]
[PlyCount "50"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. d3 g6 3. f4 Bg7 4. Nf3 Nc6 5. c3 e5 6. Be2 d5 7. 0-0 Nge7 8. Na3 0-0 9. Qe1 exf4 10. Bxf4 h6 11. h3 g5 12. Be3 d4 13. Bd2 Ng6 14. Nh2 Nce5 15. Qg3 Be6 16. Nc2 Rc8 17. Ne1 c4 18. Nhf3 cxd3 19. Bd1 dxc3 20. Bxc3 Nxf3+ 21. Rxf3 Bxc3 22. bxc3 Rxc3 23. Rxd3 Rxd3 24. Nxd3 Qd4+ 25. Nf2 Qxa1 0-1

[Event "Vlissingen HZ op 22nd"]
[Site "Vlissingen"]
[Date "2018.08.04"]
[Round "1"]
[White "Duivenvoorden, Ben"]
[Black "Muetsch, Annmarie"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1695"]
[BlackElo "2239"]
[PlyCount "114"]
[EventDate "2018.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d3 Nf6 4. c3 Be7 5. Be2 0-0 6. 0-0 d5 7. Qc2 h6 8. Re1 dxe4 9. dxe4 a5 10. b3 Bc5 11. h3 Qe7 12. Bf1 Nh5 13. Be3 Ba7 14. Nbd2 Qf6 15. Nh2 Nf4 16. Nc4 h5 17. Bxa7 Rxa7 18. Ne3 Be6 19. Rad1 Qg6 20. Kh1 Raa8 21. Nf5 Qf6 22. g3 Ng6 23. Be2 Nge7 24. g4 g6 25. Nxe7+ Nxe7 26. Bf3 hxg4 27. Bxg4 Kg7 28. Re3 Rh8 29. Qe2 Bxg4 30. Nxg4 Qe6 31. Qf3 Rh5 32. Kg2 Rah8 33. Rh1 Nc6 34. Qg3 b5 35. f3 Rd8 36. Rhe1 a4 37. f4 exf4 38. Qxf4 Qd6 39. Qxd6 Rxd6 40. e5 Rd2+ 41. R1e2 Rxe2+ 42. Rxe2 axb3 43. axb3 Rh8 44. Re3 Nd8 45. Kg3 Ne6 46. Nf2 Ra8 47. b4 Ra3 48. Rd3 c5 49. Kg4 Ra4 50. Kf3 cxb4 51. cxb4 Rxb4 52. Nd1 Nf4 53. Rd7 Nxh3 54. Ne3 Ng5+ 55. Ke2 Ne6 56. Rb7 Rb2+ 57. Kd3 Nc5+ 0-1

[Event "Lisbon Check Mate op 5th"]
[Site "Lisbon"]
[Date "2017.08.31"]
[Round "7"]
[White "Duivenvoorden, Ben"]
[Black "Vide, Augusto"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1659"]
[BlackElo "1879"]
[PlyCount "68"]
[EventDate "2017.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "POR"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 d6 2. f4 e5 3. d3 Nf6 4. Be2 Nc6 5. c3 Qe7 6. Nf3 h6 7. 0-0 Bg4 8. h3 Bxf3 9. Bxf3 0-0-0 10. b4 exf4 11. Bxf4 g5 12. Bh2 Ne5 13. g4 Rg8 14. Be2 Bg7 15. Nd2 h5 16. d4 Ned7 17. Qc2 hxg4 18. hxg4 Nd5 19. Rf5 Ne3 20. Qa4 Nxf5 21. gxf5 Kb8 22. Re1 g4 23. Bg3 Bf6 24. Kf2 Bh4 25. Rh1 Bxg3+ 26. Kxg3 Qg5 27. Nf1 Nf6 28. Qc2 Rh8 29. Rxh8 Rxh8 30. Kf2 g3+ 31. Kg2 Qh4 32. Bf3 Qh1+ 33. Kxg3 Qxf1 34. e5 Rh3+ 0-1

[Event "Mondariz Balneario op 3rd"]
[Site "Mondariz Balneario"]
[Date "2016.08.21"]
[Round "5.14"]
[White "Duivenvoorden, Ben"]
[Black "Gonzalez Quintela, Francisco"]
[Result "1/2-1/2"]
[ECO "C44"]
[WhiteElo "1697"]
[PlyCount "156"]
[EventDate "2016.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d3 Nf6 4. Nbd2 Bc5 5. c3 d6 6. b4 Bb6 7. Nc4 Be6 8. a4 a6 9. Ne3 h6 10. Be2 Ne7 11. Qc2 0-0 12. d4 exd4 13. Nxd4 Ng6 14. 0-0 Bd7 15. a5 Ba7 16. f4 Re8 17. Bd3 c5 18. Ne2 Ne7 19. Kh1 Bc6 20. Ng3 cxb4 21. cxb4 Rc8 22. Qb1 Qd7 23. Nc4 Bxe4 24. Nxe4 Nxe4 25. Bxe4 Rxc4 26. Bd3 Rc7 27. f5 Bd4 28. Ra2 f6 29. Qb3+ Kf8 30. Bb2 Be5 31. b5 Bxb2 32. Rxb2 d5 33. bxa6 bxa6 34. Bxa6 Ra8 35. Bb5 Qc8 36. Ra2 Rc1 37. Qf3 Rxf1+ 38. Bxf1 Qxf5 39. Qe2 d4 40. a6 d3 41. Qxd3 Qxd3 42. Bxd3 Ra7 43. Rb2 Rc7 44. g4 Rd7 45. Be4 Ra7 46. Rb8+ Kf7 47. Rb6 Ke8 48. Rb8+ Kd7 49. Bb7 Nc6 50. Rg8 Kd6 51. Rxg7 Ne5 52. Rg8 Ke6 53. Ra8 Rxa8 54. Bxa8 Nd7 55. Bf3 Nb6 56. a7 Ke5 57. a8Q Nxa8 58. Bxa8 h5 59. gxh5 Kf5 60. Kg2 Kg5 61. Bf3 Kh6 62. Kf2 Kh7 63. h4 Kg7 64. Kg3 Kh6 65. Kf4 Kg7 66. Kf5 Kh6 67. Ke6 Kg7 68. Bc6 Kh6 69. Be8 Kg7 70. Bg6 Kh6 71. Be8 Kg7 72. Kf5 Kh6 73. Kxf6 Kh7 74. Kf7 Kh6 75. Kf8 Kh7 76. Bd7 Kh6 77. Bg4 Kh7 78. h6 Kh8 1/2-1/2

[Event "Mondariz Balneario op 3rd"]
[Site "Mondariz Balneario"]
[Date "2016.08.21"]
[Round "6.14"]
[White "Tallarico Tallarico, Ovidio Mario"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "A54"]
[WhiteElo "2060"]
[BlackElo "1697"]
[PlyCount "67"]
[EventDate "2016.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 Nf6 3. c4 Nbd7 4. Nc3 e5 5. g3 c6 6. Qc2 Be7 7. Bg2 h6 8. 0-0 Qc7 9. h3 g5 10. dxe5 dxe5 11. b3 Nf8 12. Ne4 Ng6 13. Bb2 Rg8 14. Nxf6+ Bxf6 15. Nd2 Be6 16. Rad1 0-0-0 17. Ne4 Be7 18. Rxd8+ Kxd8 19. Rd1+ Ke8 20. c5 Kf8 21. Nd6 Bxd6 22. Rxd6 Ke7 23. Be4 Nf8 24. Bxe5 Qc8 25. Qc3 f6 26. Bxf6+ Kf7 27. Rd8 Qc7 28. Bf3 Ng6 29. Rd6 Rf8 30. Bh5 Rg8 31. Qd4 Qc8 32. Bd8 Kf8 33. Qf6+ Bf7 34. Be7+ 1-0

[Event "Prague Summer op 2nd"]
[Site "Prague"]
[Date "2015.08.08"]
[Round "2"]
[White "Duivenvoorden, Ben"]
[Black "Ramondino, Renzo"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1749"]
[BlackElo "2168"]
[PlyCount "54"]
[EventDate "2015.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 c5 3. c3 Nf6 4. d3 b6 5. Be2 Bb7 6. Nbd2 d6 7. h3 Nbd7 8. 0-0 Be7 9. Re1 0-0 10. Nf1 Qc7 11. N3h2 d5 12. f3 Nh5 13. exd5 exd5 14. d4 Bh4 15. Be3 Bxe1 16. Qxe1 Rfe8 17. Qd2 Ng3 18. Bd3 Nxf1 19. Rxf1 cxd4 20. Bxd4 Nc5 21. Bf5 Ne6 22. Ng4 Qf4 23. Qxf4 Nxf4 24. Kh2 Re2 25. Rf2 Rae8 26. a4 h5 27. Ne5 Rxf2 0-1

[Event "Amsterdam Science Park op-C 3rd"]
[Site "Amsterdam"]
[Date "2013.07.13"]
[Round "8"]
[White "Van Nie, Pjotr"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1714"]
[BlackElo "1662"]
[PlyCount "99"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 Nc6 3. g3 e5 4. Bg2 Ne7 5. Nf3 Ng6 6. 0-0 a6 7. a3 Bc5 8. b4 Ba7 9. d3 d6 10. Qb3 c6 11. Bb2 0-0 12. e3 Re8 13. Rad1 Bd7 14. d4 e4 15. Nd2 Bf5 16. d5 Qd7 17. Qc2 cxd5 18. Nxd5 Nxd5 19. cxd5 Rac8 20. Qb1 Qe7 21. Rc1 Rxc1 22. Rxc1 Nf8 23. Rc4 Bg6 24. Qc2 Bb6 25. Bxe4 Qg5 26. Qc3 Bh5 27. h4 Qh6 28. Bf3 Bxe3 29. Bxh5 Bxd2 30. Qf3 Ng6 31. Rc7 Rf8 32. Rxb7 Bc1 33. Bd4 f6 34. Ra7 Ne5 35. Bxe5 dxe5 36. d6 e4 37. Qb3+ Kh8 38. Bf7 Qd2 39. Rxa6 Qe1+ 40. Kg2 e3 41. Qa2 e2 42. Kf3 h6 43. Bg6 Qc3+ 44. Kxe2 Bb2 45. Qd5 Bxa3 46. Ra8 Rc8 47. Rxc8+ Qxc8 48. d7 Qd8 49. Qe6 Qf8 50. Qe8 1-0

[Event "Amsterdam Science Park op-C 3rd"]
[Site "Amsterdam"]
[Date "2013.07.11"]
[Round "6"]
[White "Duivenvoorden, Ben"]
[Black "Den Dunnen, Lola"]
[Result "0-1"]
[ECO "B29"]
[WhiteElo "1662"]
[BlackElo "1599"]
[PlyCount "94"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d3 d5 3. Nbd2 c5 4. e4 Nc6 5. c3 d4 6. Be2 e5 7. Qc2 Be6 8. h3 Bd6 9. Nf1 Qc7 10. Bd2 dxc3 11. bxc3 Rb8 12. Rb1 a6 13. a4 0-0 14. g4 b5 15. axb5 Rxb5 16. Rxb5 axb5 17. d4 cxd4 18. cxd4 Nxd4 19. Nxd4 exd4 20. Qxc7 Bxc7 21. Bb4 Rb8 22. Nd2 Bc4 23. Be7 d3 24. Bd1 Be5 25. Bb4 Ra8 26. 0-0 Ra2 27. Bf3 Rc2 28. Rb1 h6 29. Bd1 Ra2 30. Bb3 Bxb3 31. Rxb3 Rb2 32. Rxb2 Bxb2 33. f4 Bc1 34. Kf1 Bxd2 35. Bxd2 Nxe4 36. Bb4 g6 37. h4 f5 38. gxf5 gxf5 39. Ke1 h5 40. Ba5 Kf7 41. Kd1 Ke6 42. Be1 Kd5 43. Kc1 Kc4 44. Ba5 Kb3 45. Bb6 b4 46. Bd4 Ka2 47. Be5 d2+ 0-1

[Event "Amsterdam Science Park op-C 3rd"]
[Site "Amsterdam"]
[Date "2013.07.10"]
[Round "5"]
[White "Loeve, Jaap"]
[Black "Duivenvoorden, Ben"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1717"]
[BlackElo "1662"]
[PlyCount "54"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Bg5 c6 5. Nf3 e5 6. Qd2 h6 7. Bh4 Be7 8. Bg3 Qc7 9. Bc4 b5 10. Bd3 Nh5 11. d5 Nxg3 12. hxg3 b4 13. dxc6 bxc3 14. cxd7+ Bxd7 15. Qxc3 Qxc3+ 16. bxc3 Rb8 17. Ke2 0-0 18. Rhb1 g6 19. Nd2 Be6 20. c4 Rfc8 21. Rxb8 Rxb8 22. Rb1 Re8 23. Rb7 a6 24. Nb1 Kf8 25. Nc3 Ra8 26. Nd5 Bd8 27. Nc7 Bc8 0-1

[Event "Amsterdam Science Park op-C 3rd"]
[Site "Amsterdam"]
[Date "2013.07.08"]
[Round "3"]
[White "Suyderhoud, Wim"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1732"]
[BlackElo "1662"]
[PlyCount "135"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 d6 4. Nc3 Nbd7 5. Nf3 Be7 6. Bd3 e5 7. d5 h6 8. Be3 g5 9. h3 Nf8 10. Bb5+ Bd7 11. Qd3 c6 12. dxc6 bxc6 13. Ba4 Ne6 14. g3 Qc7 15. Qa6 g4 16. hxg4 Nxg4 17. Qd3 Nxe3 18. Qxe3 Ng5 19. 0-0-0 Qc8 20. Nxg5 Bxg5 21. f4 exf4 22. gxf4 Be7 23. Rdg1 Qc7 24. Qd4 0-0-0 25. Rg7 Be6 26. Bb3 Bxb3 27. axb3 Bf8 28. Rg2 Rh7 29. Qc4 Bg7 30. Rhg1 Bf6 31. Qa6+ Qb7 32. Qe2 Bd4 33. Rh1 a6 34. Rgh2 Rdh8 35. e5 dxe5 36. fxe5 Re8 37. Qe4 Bxc3 38. Qxh7 Bxe5 39. Qf5+ Qd7 40. Qxd7+ Kxd7 41. Rf2 Re7 42. Rxh6 f6 43. c3 Kd6 44. Kc2 Re6 45. Rh8 Kc7 46. Rh7+ Kb6 47. Rd2 Rd6 48. Rxd6 Bxd6 49. Kd3 a5 50. Kc4 Bf4 51. b4 axb4 52. Kxb4 Be3 53. Rf7 Bg5 54. Kc4 Bh4 55. Rf8 Kc7 56. b4 Kd7 57. b5 cxb5+ 58. Kxb5 Ke7 59. Rh8 Be1 60. c4 Kd7 61. Kc5 Bc3 62. Kd5 Be5 63. Rh7+ Kc8 64. c5 Bc3 65. Kc6 Kb8 66. Kb6 f5 67. Rf7 Be5 68. Rf8# 1-0

[Event "Delft Prinsenstad op-C"]
[Site "Delft"]
[Date "2012.04.08"]
[Round "6"]
[White "Duivenvoorden, Ben"]
[Black "Elisen, Peter"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1583"]
[BlackElo "1553"]
[PlyCount "75"]
[EventDate "2012.04.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. Nc3 b6 5. Ne5 Bb7 6. f3 Bd6 7. cxd5 exd5 8. Bg5 0-0 9. Qd2 c5 10. Ng4 Be7 11. Ne5 Nc6 12. e3 Nxe5 13. dxe5 Nd7 14. Bf4 Bg5 15. Nb5 Bh4+ 16. Kd1 f6 17. Nd6 Bc6 18. e6 Ne5 19. Nf5 Ng6 20. Bd6 Re8 21. e7 Qd7 22. Bd3 Bg5 23. f4 Bh6 24. Qc2 d4 25. exd4 Bxg2 26. Qxg2 Bxf4 27. Bxf4 Kh8 28. Bd6 c4 29. Be4 Rac8 30. Rc1 Qa4+ 31. b3 cxb3 32. Rxc8 Rxc8 33. axb3 Qa1+ 34. Ke2 Qa2+ 35. Kf3 Qxb3+ 36. Kg4 h5+ 37. Kxh5 Qf7 38. Qxg6 1-0

[Event "Delft Prinsenstad op-C"]
[Site "Delft"]
[Date "2012.04.07"]
[Round "4"]
[White "De Lange, Gerard"]
[Black "Duivenvoorden, Ben"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1668"]
[BlackElo "1583"]
[PlyCount "72"]
[EventDate "2012.04.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. g3 e5 5. d5 c6 6. Bg2 h6 7. Nge2 Be7 8. 0-0 g5 9. h3 Nf8 10. g4 Ng6 11. Ng3 Qc7 12. Nf5 Bxf5 13. exf5 Nf4 14. Be3 a6 15. Bxf4 gxf4 16. Qf3 c5 17. Rad1 b5 18. Rfe1 b4 19. Nb1 Nh7 20. Nd2 Ng5 21. Qd3 h5 22. h4 f3 23. hxg5 fxg2 24. f6 Bd8 25. Kxg2 Qd7 26. Re4 hxg4 27. Qg3 Rg8 28. Rxg4 Bxf6 29. Ne4 Be7 30. f3 0-0-0 31. g6 f5 32. Nxc5 dxc5 33. Rxb4 cxb4 34. Qxe5 Rxg6+ 35. Kf2 Bc5+ 36. Ke2 Re8 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.27"]
[Round "7.33"]
[White "Duivenvoorden, Ben"]
[Black "Van Schajik, Nico"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1670"]
[BlackElo "1336"]
[PlyCount "69"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. b3 Nc6 3. Bb2 e5 4. d4 exd4 5. f4 a6 6. Nf3 Bc5 7. a4 d6 8. Ng5 Qf6 9. g3 h6 10. Nf3 Bg4 11. h3 g5 12. hxg4 gxf4 13. g5 Qg6 14. Nbd2 0-0-0 15. gxf4 f5 16. Nh4 Qe6 17. Nxf5 Kb8 18. Bc4 d5 19. Bd3 dxe4 20. Bxe4 Bb4 21. Qf3 Rh7 22. 0-0-0 Rdd7 23. Nxh6 Nxh6 24. Bxh7 Ng4 25. Be4 Ne3 26. Rh8+ Ka7 27. Rh6 Qe7 28. Bxc6 Qc5 29. Nc4 bxc6 30. Rxc6 Qf5 31. Nxe3 Bd2+ 32. Rxd2 dxe3 33. Qxe3+ Kb8 34. Qe8+ Kb7 35. Qxd7 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.26"]
[Round "5.23"]
[White "Duivenvoorden, Ben"]
[Black "Langedijk, Erik"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1670"]
[BlackElo "1877"]
[PlyCount "70"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c5 7. Bd3 cxd4 8. Bxd4 Nc6 9. Be3 Bd7 10. Rc1 Qa5 11. Qd2 Ne5 12. Nge2 Rfc8 13. b3 a6 14. Bb1 Nc6 15. 0-0 h5 16. Qc2 b5 17. cxb5 axb5 18. Qd2 Ne5 19. Rfd1 b4 20. Na4 Bxa4 21. bxa4 Nc4 22. Qd3 Nxe3 23. Qxe3 Qxa4 24. Rd2 Rxc1+ 25. Nxc1 Rc8 26. Nb3 Nd7 27. Qe2 Qa7+ 28. Kf1 Bc3 29. Rd5 Ne5 30. Ra5 Qc7 31. f4 Nc4 32. Rg5 Bf6 33. Rg3 h4 34. Rg4 Qb6 35. Ke1 Qg1+ 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.26"]
[Round "3.28"]
[White "Duivenvoorden, Ben"]
[Black "Strating, Maarten"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1670"]
[BlackElo "1522"]
[PlyCount "113"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. f3 0-0 6. e4 Nxe4 7. Bxe7 Nxc3 8. Bxd8 Nxd1 9. Bxc7 Nxb2 10. c5 Nc4 11. Bd3 Nc6 12. Ne2 Bd7 13. 0-0 Rac8 14. Bg3 Rfe8 15. Rab1 Nd2 16. Rxb7 Nxf1 17. Kxf1 Re7 18. Bd6 Rce8 19. Bb5 Bc8 20. Rxe7 Rxe7 21. Bxc6 Bd7 22. Bxe7 Bxc6 23. Nc3 f6 24. a4 a6 25. Ke2 Kf7 26. Bd6 g6 27. f4 h6 28. a5 Ke8 29. Na2 Bb5+ 30. Ke3 h5 31. Nb4 Kd7 32. Bf8 Ke8 33. Bg7 Kf7 34. Bxf6 Kxf6 35. c6 Ke7 36. h3 Kd6 37. g4 hxg4 38. hxg4 Bxc6 39. Nxa6 Bb5 40. Nc5 Ke7 41. a6 Bc6 42. Nd3 Ba8 43. Ne5 Kf6 44. Nd7+ Ke7 45. Nb6 Bc6 46. a7 Kd6 47. f5 exf5 48. gxf5 gxf5 49. Kf4 Kc7 50. a8Q Bxa8 51. Nxa8+ Kb7 52. Kxf5 Kxa8 53. Ke5 Kb7 54. Kxd5 Kc8 55. Kd6 Kd8 56. d5 Ke8 57. Kc7 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.26"]
[Round "4.26"]
[White "Van Onzen, Bart T"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1823"]
[BlackElo "1670"]
[PlyCount "49"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 g5 4. Bc1 e6 5. f3 Nd6 6. e4 f5 7. Nc3 Nf7 8. Bc4 Bg7 9. exf5 exf5 10. Qe2+ Qe7 11. Bxf7+ Kxf7 12. Qxe7+ Kxe7 13. Bxg5+ Kf7 14. 0-0-0 Nc6 15. Nb5 b6 16. Nxc7 Rb8 17. c3 Bb7 18. Nb5 Kg6 19. Bf4 Ra8 20. Nh3 Ne7 21. Rde1 Nd5 22. Nc7 Nxc7 23. Bxc7 Bf6 24. Be5 Bd5 25. Nf4+ 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.25"]
[Round "2.21"]
[White "Beeke, Bobby"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "1896"]
[BlackElo "1670"]
[PlyCount "75"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Re1 Nc5 7. Bxc6 dxc6 8. Nxe5 Be7 9. d4 Ne6 10. c3 0-0 11. f4 g6 12. Qf3 Ng7 13. b3 Be6 14. Bb2 Bd5 15. Qf2 f6 16. Ng4 b6 17. Nd2 c5 18. c4 Be6 19. Nh6+ Kh8 20. d5 Bd7 21. Qe3 Bd6 22. Ne4 Nf5 23. Nxf5 Bxf5 24. Ng5 h6 25. Ne6 Bxe6 26. dxe6 Qe7 27. f5 g5 28. Rad1 Kh7 29. Rd3 Rad8 30. Red1 Bf4 31. Qe2 Bd6 32. h4 Rg8 33. hxg5 Rxg5 34. Bc1 Rxf5 35. Qe4 Kg6 36. Rd5 Be5 37. Rxd8 Qxe6 38. Qg4+ 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.25"]
[Round "1.20"]
[White "Duivenvoorden, Ben"]
[Black "Van Aurich, Rob"]
[Result "0-1"]
[ECO "A35"]
[WhiteElo "1670"]
[BlackElo "1769"]
[PlyCount "74"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nc3 cxd4 4. Qxd4 Nc6 5. Qd1 g6 6. Nf3 Bg7 7. e3 0-0 8. Be2 d6 9. 0-0 a6 10. Nd4 Ne5 11. f4 Ned7 12. e4 Nc5 13. Bf3 Qb6 14. e5 dxe5 15. fxe5 Nfd7 16. Nd5 Qd8 17. b4 Ne6 18. Bb2 Nxe5 19. Nxe6 Bxe6 20. Be4 Bg4 21. Qb3 Rc8 22. c5 e6 23. Ne3 Qc7 24. Rac1 Rfd8 25. h3 Be2 26. Rf2 Bd3 27. Bf3 Nxf3+ 28. Rxf3 Be4 29. Rf2 Rd3 30. Rc3 Bxc3 31. Bxc3 Rxe3 32. Qb2 Rd8 33. Be5 Rd1+ 34. Kh2 Qd7 35. Bf4 Ree1 36. Qf6 Qd8 37. Qb2 Qh4 0-1

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2000.05.21"]
[Round "5"]
[White "Van de Schootbrugge, Gabriel"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "B82"]
[WhiteElo "1785"]
[BlackElo "1692"]
[PlyCount "47"]
[EventDate "2000.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d6 3. e4 Nc6 4. f4 e5 5. d5 Nd4 6. Be3 c5 7. dxc6 Nxc6 8. Nf3 Ng4 9. Bd2 Qb6 10. Qe2 Bd7 11. h3 Nf6 12. 0-0-0 Nd4 13. Qd3 Rc8 14. Be3 d5 15. Nxe5 dxe4 16. Nxd7 exd3 17. Nxb6 Rxc3 18. Bxd3 Ne2+ 19. Bxe2 Rxe3 20. Bb5+ Ke7 21. Nc8+ Ke6 22. g4 Ne4 23. g5 Bc5 24. Bd7# 1-0

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2000.05.20"]
[Round "4"]
[White "Duivenvoorden, Ben"]
[Black "Hofstra, P."]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "1692"]
[BlackElo "1465"]
[PlyCount "120"]
[EventDate "2000.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 Nf6 3. d4 e6 4. Nc3 c6 5. Qc2 Nbd7 6. e4 Bb4 7. Nd2 dxe4 8. Ndxe4 Nxe4 9. Qxe4 Bxc3+ 10. bxc3 Qa5 11. Qc2 0-0 12. Bd3 Nf6 13. 0-0 e5 14. c5 Re8 15. f3 Qd8 16. Be3 g6 17. f4 e4 18. Be2 Nd5 19. Bc1 Qa5 20. Bb2 Ne3 21. Qb3 Nxf1 22. Rxf1 Be6 23. c4 Rad8 24. f5 Bxf5 25. Rxf5 Qe1+ 26. Rf1 Qxe2 27. d5 Qd3 28. Qxb7 Qe3+ 29. Kh1 Rf8 30. Qxc6 Rb8 31. Be5 Rbe8 32. Bf4 Qd4 33. d6 Re6 34. Qd5 Qxd5 35. cxd5 Rf6 36. Kg1 Rf5 37. Bh6 Rxd5 38. Bxf8 Kxf8 39. Rc1 f5 40. Kf1 Ke8 41. Ke2 Kd7 42. c6+ Kc8 43. d7+ Kc7 44. g3 g5 45. Rd1 Rxd1 46. Kxd1 f4 47. gxf4 gxf4 48. Ke2 f3+ 49. Ke3 h5 50. a4 a5 51. h4 Kd8 52. Kd2 Kc7 53. Ke3 Kd8 54. Kf2 Kc7 55. Kg3 Kd8 56. Kf2 Kc7 57. Ke1 Kd8 58. Kd1 Kc7 59. Kd2 Kd8 60. Ke3 Kc7 1-0

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2000.05.20"]
[Round "3"]
[White "Hijweegen, Claudia"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "C59"]
[WhiteElo "1527"]
[BlackElo "1692"]
[PlyCount "61"]
[EventDate "2000.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[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 Nd5 9. Nf3 Nf4 10. 0-0 e4 11. Ne1 Bd6 12. d3 exd3 13. Nxd3 Qg5 14. Bxf4 Bxf4 15. Nxf4 Qxf4 16. Qd2 Qc7 17. Qe3+ Be6 18. Bg4 0-0 19. Bxe6 Rfe8 20. Bxf7+ Qxf7 21. Qc3 Nc4 22. Na3 Ne5 23. Rfe1 Rad8 24. Rxe5 Rxe5 25. Qxe5 Re8 26. Qc3 Re2 27. Qc4 Re6 28. Rd1 Kf8 29. Qb4+ Kg8 30. Rd8+ Re8 31. Qb8 1-0

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2000.05.19"]
[Round "1"]
[White "Duivenvoorden, Ben"]
[Black "Sanderse, W."]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "1692"]
[BlackElo "1868"]
[PlyCount "54"]
[EventDate "2000.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 e5 7. d5 a5 8. h3 Na6 9. Be3 b6 10. Qd2 Nc5 11. Qc2 Nh5 12. g3 f5 13. Ng5 f4 14. Bxc5 Qxg5 15. Bxh5 fxg3 16. Be3 gxf2+ 17. Bxf2 Qxh5 18. Qe2 Rf3 19. Nb5 Bxh3 20. Nxc7 Raf8 21. Ne6 R8f7 22. Nxg7 Kxg7 23. Rh2 Qg4 24. Kd2 Qf4+ 25. Be3 Rxe3 26. Qxe3 Qxh2+ 27. Kc3 Bg4 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "7"]
[White "Duivenvoorden, Ben"]
[Black "Culverhouse, Brian"]
[Result "1-0"]
[ECO "D37"]
[PlyCount "97"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Qc2 Nc6 6. a3 Bd7 7. Bf4 0-0 8. e3 Re8 9. b4 Bf8 10. b5 Ne7 11. c5 Ng6 12. Bg3 Nh5 13. Bd3 c6 14. a4 Qa5 15. Ne5 Nf6 16. 0-0 h6 17. Nxg6 fxg6 18. Bxg6 Rec8 19. Rfb1 Qd8 20. b6 Be8 21. a5 a6 22. Rb4 Qe7 23. Bh4 Bxg6 24. Qxg6 Qf7 25. Qg3 Be7 26. Qf3 Rf8 27. Re1 Qg6 28. Qe2 e5 29. Bg3 e4 30. Rf1 Nd7 31. Rbb1 h5 32. f3 exf3 33. Rxf3 Rxf3 34. Qxf3 Rf8 35. Bf4 Nf6 36. Rb2 Qd3 37. Nb1 Ng4 38. Qe2 Qf5 39. Nd2 Qe6 40. Nf3 Qe4 41. h3 Nf6 42. Ne5 Qf5 43. Nxc6 bxc6 44. b7 Nd7 45. Qxa6 Rb8 46. Qxc6 Kf8 47. Bxb8 Qd3 48. Rf2+ Nf6 49. Be5 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "3"]
[White "Duivenvoorden, Ben"]
[Black "Hofman, Ron"]
[Result "0-1"]
[ECO "D45"]
[BlackElo "2245"]
[PlyCount "52"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 e6 5. Qc2 Nbd7 6. e3 Bd6 7. Bd2 0-0 8. cxd5 exd5 9. Bd3 Re8 10. 0-0-0 b5 11. a3 a5 12. Na2 Qb6 13. b4 axb4 14. Bxb4 c5 15. dxc5 Nxc5 16. Nd4 Bd7 17. Kb2 Rec8 18. Qe2 Nfe4 19. f3 Na4+ 20. Kb3 Nec3 21. Kc2 Ne4+ 22. Kb3 Nec3 23. Qd2 Nxa2 24. Kxa2 Nc3+ 25. Kb2 Bxb4 26. axb4 Ra2+ 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "5"]
[White "Duivenvoorden, Ben"]
[Black "Mahabali, P."]
[Result "1-0"]
[ECO "D10"]
[PlyCount "77"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Qc2 Bg4 5. f3 Bh5 6. Bf4 dxc4 7. e3 e6 8. Bxc4 Bg6 9. Qb3 b5 10. Nxb5 Qa5+ 11. Nc3 Nbd7 12. Nge2 Be7 13. 0-0 0-0 14. Bxe6 fxe6 15. Qxe6+ Rf7 16. Qxc6 Nb6 17. Rfd1 Bc2 18. Rd2 Ba4 19. Nxa4 Qxa4 20. Qxa4 Nxa4 21. b3 Nb6 22. e4 Rc8 23. d5 Bb4 24. Rd3 Rd7 25. d6 Kf7 26. g4 Rc2 27. Kf1 Rc8 28. a3 Bc5 29. b4 Bxd6 30. Rxd6 Rxd6 31. Bxd6 Nc4 32. e5 Ne8 33. Rd1 Ne3+ 34. Ke1 Nxd1 35. Kxd1 Nxd6 36. exd6 Ke6 37. Nd4+ Kf6 38. Ke2 Ke5 39. d7 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "1"]
[White "Duivenvoorden, Ben"]
[Black "Muis, Gerrit Meine"]
[Result "0-1"]
[ECO "D51"]
[PlyCount "98"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bg5 h6 6. Bh4 c6 7. e4 Qa5 8. Qd2 dxe4 9. Ng1 Bb4 10. Nge2 e5 11. 0-0-0 exd4 12. Qxd4 0-0 13. a3 Bc5 14. Qd2 Re8 15. Nxe4 Qxd2+ 16. Nxd2 Ng4 17. h3 Nxf2 18. Bxf2 Bxf2 19. Nc3 Nb6 20. Nde4 Be3+ 21. Kb1 Bf5 22. Bd3 Nxc4 23. Nf6+ gxf6 24. Bxf5 Rad8 25. Rhe1 Kg7 26. Kc2 Rxd1 27. Nxd1 Re5 28. Bd3 Bd4 29. Rf1 Nd6 30. Rf4 Bb6 31. Nc3 f5 32. Ne2 Re3 33. Nd4 Bxd4 34. Rxd4 Ne4 35. g4 Rxh3 36. gxf5 Rh2+ 37. Kc1 Nc5 38. Bc2 a5 39. b4 axb4 40. Rxb4 Kf6 41. Rc4 Nd7 42. Rd4 Ne5 43. a4 c5 44. Rd6+ Kg5 45. Rb6 Rh1+ 46. Bd1 Nc4 47. Rxb7 Ne3 48. Rd7 c4 49. a5 c3 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "6"]
[White "Jansen, Josef"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2275"]
[PlyCount "71"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Be2 d6 6. Bg5 Nbd7 7. Qd2 Ne8 8. g4 f6 9. Be3 b6 10. Nh3 e5 11. dxe5 Bb7 12. e6 Ne5 13. Nd5 Bxd5 14. exd5 g5 15. f3 Qe7 16. Nf2 Ng6 17. Ne4 h6 18. Ng3 Bh8 19. Nf5 Qh7 20. h4 Ne7 21. Bd3 Nxf5 22. Bxf5 Qe7 23. hxg5 Ng7 24. gxh6 Nxf5 25. gxf5 Kh7 26. 0-0-0 Rg8 27. Rdg1 Rxg1+ 28. Rxg1 Qe8 29. Rg6 c5 30. Qg2 Qf8 31. Bf4 Rd8 32. Qc2 Qe7 33. Qa4 Qb7 34. Qc6 Qe7 35. a4 Qf8 36. Qc7+ 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "9"]
[White "Kuijper, Hans"]
[Black "Duivenvoorden, Ben"]
[Result "0-1"]
[ECO "A87"]
[PlyCount "102"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. g3 f5 4. Bg2 Nf6 5. 0-0 d6 6. c4 0-0 7. Nc3 Bd7 8. Qb3 Nc6 9. a4 Re8 10. Rd1 Qc8 11. Ng5 Na5 12. Qa2 e5 13. d5 h6 14. Nf3 b6 15. e3 Ne4 16. Nxe4 fxe4 17. Nd2 Bg4 18. Re1 Bf3 19. Nxf3 exf3 20. Bxf3 Qf5 21. Bg2 Qc2 22. b3 Qxb3 23. Qxb3 Nxb3 24. Ra2 e4 25. Bb2 Bxb2 26. Rxb2 Nc5 27. Ra2 Rf8 28. Rd1 a5 29. Rd4 Rae8 30. h4 h5 31. Kf1 Kg7 32. Kg1 Rf5 33. Bh3 Rfe5 34. Bf1 g5 35. hxg5 Rxg5 36. Bg2 Kf6 37. f3 Rxg3 38. fxe4 Rxe3 39. e5+ R8xe5 40. Rh4 Kg5 41. Rh2 Rf5 42. Bf1 Ne4 43. Rhg2+ Kh6 44. Ra1 Rg5 45. Rxg5 Kxg5 46. Ra2 Rg3+ 47. Kh2 h4 48. Re2 Kf4 49. Ra2 Ke3 50. Rb2 Nd2 51. Bh3 Nf3+ 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "2"]
[White "Langenberg, Jan"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "53"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[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. Bc4 Nf6 4. d3 Bc5 5. c3 Qe7 6. b4 Bb6 7. a4 a5 8. b5 Nd8 9. 0-0 c6 10. d4 exd4 11. e5 Ne4 12. cxd4 Ne6 13. Bxe6 fxe6 14. bxc6 bxc6 15. Qc2 Ba6 16. Re1 Nc5 17. dxc5 Bxc5 18. Bg5 Qf8 19. Nbd2 Bb4 20. Ne4 h6 21. Bd2 Rb8 22. Bxb4 axb4 23. Nd6+ Kd8 24. Qc5 Bd3 25. Re3 Bh7 26. Nd4 Qf4 27. Rf3 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "8"]
[White "Van den Nieuwendijk, Marco"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "C68"]
[PlyCount "114"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[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 a6 4. Bxc6 dxc6 5. 0-0 Bd6 6. d4 Bg4 7. dxe5 Bxf3 8. Qxf3 Bxe5 9. Nd2 Qe7 10. Nc4 Bd4 11. c3 Bc5 12. Rd1 b5 13. Ne3 Nh6 14. Nf5 Nxf5 15. Qxf5 0-0 16. Bg5 f6 17. Bh4 Rfe8 18. Bg3 Rad8 19. Kf1 Bb6 20. f3 Be3 21. e5 Rxd1+ 22. Rxd1 fxe5 23. Rd7 Qe6 24. Qxe6+ Rxe6 25. Rxc7 Bc1 26. b3 Bd2 27. c4 bxc4 28. bxc4 Bc3 29. Ke2 h5 30. Kd3 Bd4 31. Ke4 Kh7 32. Kf5 Rf6+ 33. Kg5 Rh6 34. Kf5 Rf6+ 35. Kg5 Bb6 36. Re7 Bd8 37. Rxe5 h4 38. Kxh4 Rxf3+ 39. Kg4 Ra3 40. Re2 Rc3 41. Re8 Bf6 42. Re4 Rc2 43. a4 Rxg2 44. c5 Kg6 45. Re6 Ra2 46. Rxc6 Rxa4+ 47. Kf3 Kf5 48. Rd6 Be5 49. Rd5 Ra3+ 50. Kf2 Rxg3 51. hxg3 Ke6 52. Rd3 a5 53. c6 Bc7 54. Ke2 a4 55. g4 Bb6 56. Kd2 Bc7 57. Ke2 Bb6 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "4"]
[White "Wijnhof, Marcel"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "C21"]
[PlyCount "79"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. d4 Qh4 3. Bd3 exd4 4. Nf3 Bb4+ 5. c3 dxc3 6. bxc3 Qg4 7. cxb4 Nf6 8. Nbd2 0-0 9. Bb2 Nc6 10. h3 Qh5 11. Qb3 d5 12. g4 Nxg4 13. 0-0-0 Nxf2 14. Rhg1 d4 15. Rdf1 Be6 16. Qa3 Nxb4 17. Bxd4 Nbxd3+ 18. Kc2 f6 19. Bxf2 Nxf2 20. Rxf2 Bxa2 21. Qxa2+ Kh8 22. Rfg2 Rg8 23. Nd4 Qe5 24. Nf5 g6 25. h4 Rgd8 26. Nh6 Qc5+ 27. Kd1 Qh5+ 28. Ng4 a5 29. Qf7 Ra6 30. Qxc7 Rad6 31. Qxb7 Qc5 32. Rf1 Rb6 33. Qf7 Rb1+ 34. Ke2 Rxd2+ 35. Kxd2 Qd4+ 36. Ke2 Rb2+ 37. Kf3 Rb3+ 38. Qxb3 f5 39. Qb8+ Kg7 40. Qe5+ 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "1"]
[White "Dambacher, Martijn"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "C47"]
[PlyCount "83"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[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. Nc3 Nf6 4. d4 Bb4 5. a3 Bxc3+ 6. bxc3 Nxe4 7. dxe5 0-0 8. Qd5 Nxf2 9. Kxf2 Qe7 10. Bd3 b6 11. Qe4 f5 12. exf6 Qxe4 13. Bxe4 Rxf6 14. Bg5 Rf8 15. Be7 Re8 16. Bd5+ Kh8 17. Rae1 Bb7 18. Bh4 Rf8 19. Kg3 Rae8 20. Rxe8 Rxe8 21. Re1 Rf8 22. Bxc6 Bxc6 23. Ne5 Ba4 24. Be7 Re8 25. Bg5 Kg8 26. Nd3 Rf8 27. Re2 h6 28. Bf4 c5 29. Re7 Rf6 30. Ne5 d6 31. Nc4 d5 32. Rxa7 Bxc2 33. Ne3 Be4 34. Rd7 b5 35. Nxd5 Rg6+ 36. Kf2 Rxg2+ 37. Ke3 Bc2 38. Kf3 Rg1 39. Kf2 Rg4 40. h3 Rh4 41. Be5 g6 42. Bg7 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "4"]
[White "Duivenvoorden, Ben"]
[Black "Friesen, Bas"]
[Result "0-1"]
[ECO "D32"]
[PlyCount "94"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. Nc3 Nc6 5. cxd5 exd5 6. Bf4 Nf6 7. e3 cxd4 8. Nxd4 Bb4 9. Rc1 0-0 10. Nxc6 bxc6 11. Be2 Re8 12. 0-0 Bf5 13. Qa4 Qa5 14. Qxa5 Bxa5 15. Na4 Rac8 16. Ba6 Rcd8 17. Bb7 Bd3 18. Rfd1 Be2 19. Bxc6 Re6 20. Rxd5 Nxd5 21. Bxd5 Ree8 22. e4 Rc8 23. Rxc8 Rxc8 24. b3 Rc2 25. h3 Rxa2 26. Nc5 Ra1+ 27. Kh2 Bb6 28. Bd6 Rc1 29. b4 Rb1 30. f3 Rxb4 31. Nd3 Bc7 32. Bxf7+ Kxf7 33. Ne5+ Ke6 34. Bxb4 Bxe5+ 35. Kg1 Bd4+ 36. Kh2 Bb6 37. Kg3 a5 38. Bc3 g6 39. Kg4 a4 40. Kg5 a3 41. Kh6 Be3+ 42. Kxh7 Bc1 43. Kxg6 Bb2 44. Bxb2 axb2 45. f4 b1Q 46. f5+ Ke5 47. g4 Qxe4 0-1

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "6"]
[White "Duivenvoorden, Ben"]
[Black "Hogervorst, Paul"]
[Result "1-0"]
[ECO "A03"]
[PlyCount "77"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nc6 3. b3 Nf6 4. d3 e6 5. Bb2 Bc5 6. Nbd2 0-0 7. Ne5 Nxe5 8. fxe5 Ng4 9. d4 Bb6 10. Nf3 f6 11. Qd2 c5 12. h3 Nh6 13. dxc5 Bxc5 14. exf6 Rxf6 15. Bxf6 Qxf6 16. c3 Bb4 17. Nd4 Bc5 18. 0-0-0 a5 19. g4 Nf7 20. Bg2 Bd7 21. h4 Rc8 22. e3 Ba3+ 23. Kb1 b5 24. g5 Qe7 25. e4 Qc5 26. exd5 exd5 27. Bh3 Bxh3 28. Rxh3 b4 29. Ne6 bxc3 30. Qc2 Qb6 31. Nf4 d4 32. g6 hxg6 33. Rhd3 a4 34. Rxd4 axb3 35. axb3 Bb2 36. Nxg6 Qa7 37. Ra4 Qxa4 38. bxa4 Nd8 39. Ne7+ 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "3"]
[White "Duivenvoorden, Ben"]
[Black "Van Etten, Robin"]
[Result "1-0"]
[ECO "D35"]
[PlyCount "47"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d5 3. Nc3 e6 4. Qc2 c5 5. Bf4 Bd7 6. Nf3 Be7 7. cxd5 exd5 8. dxc5 Qc8 9. e3 0-0 10. Bd3 Qxc5 11. Rc1 Nc6 12. 0-0 Nb4 13. Qb1 Nxd3 14. Qxd3 Rac8 15. e4 dxe4 16. Nxe4 Qb4 17. Nxf6+ Bxf6 18. Qxd7 Qxf4 19. Rxc8 Qb4 20. Rxf8+ Qxf8 21. Re1 g6 22. Re8 Qxe8 23. Qxe8+ Kg7 24. Ne5 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "2"]
[White "Tonis, H."]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "A46"]
[PlyCount "120"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d6 3. Nf3 Nbd7 4. e3 c5 5. c3 g6 6. dxc5 dxc5 7. Bxf6 exf6 8. Bc4 Qb6 9. Qc2 Ne5 10. Nxe5 fxe5 11. a4 Be6 12. Bb5+ Ke7 13. Nd2 a6 14. Bc4 Qc6 15. 0-0 Rd8 16. Bxe6 Kxe6 17. Rad1 c4 18. b3 b5 19. axb5 axb5 20. bxc4 bxc4 21. Qa2 Rc8 22. Rb1 Be7 23. Rb2 Rc7 24. Ra1 Rd8 25. Qb1 Kd7 26. Rb6 Qd5 27. Nf3 Ke8 28. h3 f6 29. Nh2 e4 30. Ng4 Kf7 31. Rb8 f5 32. Qb6 Rcd7 33. Nh2 Bf6 34. Raa8 Rxb8 35. Qxb8 Rd8 36. Ra7+ Rd7 37. Ra8 Rd8 38. Ra7+ Ke8 39. Qc7 Rd7 40. Qb8+ Ke7 41. Qb4+ Ke6 42. Ra5 Qc6 43. Rc5 Qa6 44. Qxc4+ Qxc4 45. Rxc4 Kd6 46. Nf1 Rc7 47. Rxc7 Kxc7 48. c4 Bc3 49. g4 Kd6 50. gxf5 gxf5 51. Kg2 Be5 52. Ng3 Ke6 53. c5 Kd5 54. Nxf5 Kxc5 55. f4 exf3+ 56. Kxf3 Kd5 57. e4+ Ke6 58. Kg4 Kf6 59. Ne3 Ke6 60. Nd5 Bd6 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "5"]
[White "Van der Maat, Niek"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "C47"]
[PlyCount "55"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[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. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe5 6. dxe5 Nxe4 7. Qg4 Bxc3+ 8. bxc3 d5 9. Qxg7 Rf8 10. Bh6 Qe7 11. Qxf8+ Qxf8 12. Bxf8 Kxf8 13. c4 Be6 14. cxd5 Bxd5 15. Bd3 Re8 16. f4 f6 17. 0-0 fxe5 18. fxe5+ Kg7 19. Bxe4 Bxe4 20. Rf4 Bxc2 21. Rc1 Bd3 22. Rxc7+ Kg6 23. Rc3 Kg5 24. Rf7 Ba6 25. Rg3+ Kh6 26. Rf6+ Kh5 27. Rg7 Rxe5 28. g4+ 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "6"]
[White "Duivenvoorden, Ben"]
[Black "De Vries, Herman"]
[Result "1-0"]
[ECO "D10"]
[PlyCount "48"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e5 4. cxd5 cxd5 5. Qb3 exd4 6. Nxd5 Be6 7. Qa4+ Nc6 8. Nf4 Bb4+ 9. Bd2 Bxd2+ 10. Kxd2 Qg5 11. g3 Nf6 12. Nf3 Qh6 13. Bg2 0-0 14. h4 Nd5 15. Ng5 Nxf4 16. gxf4 Rfe8 17. Be4 f6 18. Rag1 f5 19. Bd3 Bd5 20. Bxf5 g6 21. Qb5 Ne7 22. Be6+ Bxe6 23. Nxe6 Nf5 24. Qxf5 Kh8 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "1"]
[White "Duivenvoorden, Ben"]
[Black "Maas, Joop"]
[Result "0-1"]
[ECO "D37"]
[PlyCount "56"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. e3 0-0 6. Bd2 Nbd7 7. Be2 a6 8. cxd5 exd5 9. 0-0 c6 10. a3 Bd6 11. Qc2 Re8 12. Bd3 Nf8 13. Rfe1 Bg4 14. Ng5 Qc7 15. f4 h6 16. Nf3 Bxf3 17. gxf3 c5 18. Ne2 Ne6 19. e4 c4 20. e5 cxd3 21. Qxc7 Bxc7 22. exf6 dxe2 23. Rxe2 Nxd4 24. Rxe8+ Rxe8 25. Rf1 Bb6 26. Kg2 Re2+ 27. Rf2 Rxf2+ 28. Kxf2 Nb3+ 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "3"]
[White "Duivenvoorden, Ben"]
[Black "Van Amerongen, Arjen"]
[Result "0-1"]
[ECO "E81"]
[PlyCount "50"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nbd7 7. Qd2 c5 8. d5 Ne5 9. Rb1 Qa5 10. b3 Ne8 11. Nge2 a6 12. Kf2 b5 13. Nc1 Nxc4 14. bxc4 Bxc3 15. Qc2 b4 16. Bd3 Bg7 17. f4 f5 18. Re1 Nf6 19. Bd2 fxe4 20. Bxe4 Nxe4+ 21. Qxe4 Bf5 22. Qxe7 Bxb1 23. Qxd6 Bxa2 24. Nd3 Bxc4 25. Nxc5 Bd4+ 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "4"]
[White "Van Dinteren, Andre"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "A28"]
[PlyCount "102"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 d6 4. e3 Nc6 5. d4 exd4 6. exd4 Bf5 7. b4 d5 8. a3 a6 9. Bg5 Be7 10. Bxf6 Bxf6 11. cxd5 Ne7 12. Qb3 0-0 13. Rd1 Re8 14. Be2 b5 15. 0-0 Bg4 16. Rfe1 Nf5 17. d6 Nxd6 18. h3 Be6 19. d5 Bf5 20. Bd3 Qd7 21. Qc2 g6 22. Bxf5 Nxf5 23. Ne4 Bg7 24. g4 Nh6 25. Qc6 Qc8 26. Neg5 Rf8 27. Re7 Nxg4 28. Qxc7 Qxc7 29. Rxc7 Ne5 30. Nxe5 Bxe5 31. Rc6 Rfd8 32. Ne4 Ra7 33. Nc5 Rd6 34. Kg2 Rxc6 35. dxc6 Rc7 36. Nd3 Bd6 37. Rc1 Kf8 38. Kf3 f5 39. Ke3 Ke7 40. Kd4 Kf6 41. Kd5 Be7 42. Re1 Bd8 43. Re6+ Kf7 44. Ne5+ Kf8 45. Kd6 Ra7 46. Nd7+ Kf7 47. Nc5 Bc7+ 48. Kd5 a5 49. Re2 axb4 50. axb4 Ra1 51. Ne6 Rd1+ 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "5"]
[White "Van Nimwegen, Andre"]
[Black "Duivenvoorden, Ben"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "36"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 b6 3. e3 Bb7 4. Nc3 d6 5. Bb5+ Nbd7 6. Nf3 e6 7. b4 Be7 8. Qd3 0-0 9. a3 h6 10. 0-0 Nh5 11. Ne4 f5 12. Nc3 Nxf4 13. exf4 Nf6 14. Rfe1 Nd5 15. Rxe6 Nxf4 16. Qc4 d5 17. Qb3 Nxe6 18. Nxd5 Bxd5 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "2"]
[White "Woestenburg, Jochem"]
[Black "Duivenvoorden, Ben"]
[Result "1/2-1/2"]
[ECO "E91"]
[PlyCount "110"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Be2 d6 6. Bg5 Nbd7 7. Nf3 c5 8. d5 Ng4 9. Nd2 f6 10. Bh4 Nge5 11. 0-0 g5 12. Bg3 Ng6 13. Bg4 Nde5 14. Bxc8 Qxc8 15. Qe2 f5 16. exf5 Qxf5 17. Qe4 Nf4 18. Bxf4 Qxf4 19. Qxf4 Rxf4 20. Ne2 Rf7 21. Rab1 Raf8 22. f3 Nd3 23. Ne4 h6 24. b3 Nf4 25. Nxf4 Bd4+ 26. Kh1 Rxf4 27. h3 R8f7 28. Ng3 Be5 29. Ne2 R4f5 30. b4 b6 31. bxc5 dxc5 32. Rb3 R5f6 33. g4 e6 34. Rd3 Rd7 35. Rfd1 exd5 36. Rxd5 Rfd6 37. Nc3 Rxd5 38. Rxd5 Re7 39. Ne4 Bd4 40. Kg2 Kg7 41. Kf1 a6 42. Nd6 Kf6 43. Nf5 Re5 44. Rd6+ Re6 45. Rxe6+ Kxe6 46. Ke2 Ke5 47. Nxh6 Kf4 48. Nf5 Be5 49. h4 gxh4 50. Nxh4 Bf6 51. Ng2+ Ke5 52. Ke3 b5 53. f4+ Ke6 54. cxb5 axb5 55. Ke4 Bb2 1/2-1/2

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "3"]
[White "Beverdam, Frank"]
[Black "Duivenvoorden, Ben"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "43"]
[EventDate "1993.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Nc6 4. Bc4 Be7 5. 0-0 Nf6 6. fxe5 dxe5 7. d3 Bc5+ 8. Kh1 Bg4 9. Bg5 h6 10. Bh4 Qd7 11. Nbd2 0-0-0 12. Qe1 g5 13. Bg3 Bd6 14. Bb5 Rde8 15. a4 Re7 16. Nxe5 Qe6 17. Bc4 Qxe5 18. Bxe5 Bxe5 19. Nf3 Bxb2 20. Rb1 Ba3 21. Qc3 Bxf3 22. Rxf3 1-0

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "2"]
[White "Duivenvoorden, Ben"]
[Black "Ooteman, Jan"]
[Result "1/2-1/2"]
[ECO "E87"]
[PlyCount "108"]
[EventDate "1993.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 Nh5 8. Qd2 Qh4+ 9. Bf2 Qe7 10. Nge2 f5 11. Ng3 Nf6 12. exf5 gxf5 13. Bd3 e4 14. fxe4 fxe4 15. Ncxe4 Nxe4 16. Bxe4 Bf5 17. 0-0 Bxe4 18. Rae1 Nd7 19. Rxe4 Ne5 20. Rfe1 Qf6 21. b4 Nd3 22. Rf1 Nxf2 23. Rxf2 Qa1+ 24. Re1 Qc3 25. Ne4 Qxc4 26. Rfe2 Rf5 27. Rc1 Qd4+ 28. Qxd4 Bxd4+ 29. Kh1 Raf8 30. g3 Rf1+ 31. Rxf1 Rxf1+ 32. Kg2 Rb1 33. Rd2 Be5 34. a3 Rb3 35. Rc2 Rxa3 36. Rxc7 Rd3 37. Rxb7 Rxd5 38. Rxa7 Rd4 39. Ng5 h6 40. Nf7 Rxb4 41. Nxh6+ Kf8 42. Nf7 Rb2+ 43. Kh3 Bd4 44. Rd7 Bg1 45. Nxd6 Bxh2 46. Rf7+ Kg8 47. Rf1 Bxg3 48. Kxg3 Rb4 49. Nc8 Rb7 50. Rf4 Rg7+ 51. Kf3 Rc7 52. Nd6 Rd7 53. Ne8 Rf7 54. Nf6+ Kg7 1/2-1/2

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "5"]
[White "Hornstra, E."]
[Black "Duivenvoorden, Ben"]
[Result "0-1"]
[ECO "A47"]
[PlyCount "84"]
[EventDate "1993.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. Bg5 Bb7 4. e3 d6 5. Bxf6 gxf6 6. Bd3 Nc6 7. Qe2 Qd7 8. c3 e5 9. Ba6 0-0-0 10. Bxb7+ Kxb7 11. d5 Ne7 12. e4 Rg8 13. g3 f5 14. c4 Rg4 15. Nc3 Bh6 16. h3 Rg7 17. exf5 Qxf5 18. g4 Qg6 19. Rg1 f6 20. Rd1 Qf7 21. Qe4 Nc8 22. Nh4 Bf4 23. Ne2 Re8 24. Ng3 Ne7 25. Nhf5 Rg6 26. Nxe7 Qxe7 27. Nf5 Qd7 28. Rd3 Reg8 29. f3 h5 30. Kf2 Qh7 31. g5 Qd7 32. Nh6 Qxh3 33. Nxg8 Rxg8 34. g6 Qh2+ 35. Kf1 Qxb2 36. Qe2 Qb1+ 37. Rd1 Qf5 38. Qe4 Qh3+ 39. Rg2 Qh1+ 40. Rg1 Qh3+ 41. Rg2 h4 42. g7 Rxg7 0-1

