[Event "NED-ch U14"]
[Site "Rijswijk"]
[Date "2000.??.??"]
[Round "?"]
[White "De Groote, Ewoud"]
[Black "Van Os, Ben"]
[Result "1-0"]
[ECO "C79"]
[PlyCount "63"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 d6 6. 0-0 Bg4 7. Bxc6+ bxc6 8. Qe2 Be7 9. Qe3 0-0 10. Ne2 Nh5 11. h3 Bg5 12. Qxg5 Bxf3 13. Qxd8 Raxd8 14. gxf3 f5 15. Ng3 Nxg3 16. fxg3 f4 17. gxf4 Rxf4 18. d4 Rf7 19. Be3 Rdf8 20. Kg2 h5 21. h4 Rf6 22. dxe5 dxe5 23. Rad1 Rd6 24. Bc5 Rxd1 25. Rxd1 Rf4 26. Be7 Kf7 27. Rd7 g6 28. Rxc7 Kg7 29. Rxc6 Kg8 30. c4 a5 31. Kg3 g5 32. hxg5 1-0

[Event "NED-ch U14"]
[Site "Rijswijk"]
[Date "2000.??.??"]
[Round "?"]
[White "Laarhoven, Thijs"]
[Black "Van Os, Ben"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "93"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 d6 5. h3 Qe7 6. Nc3 Be6 7. Nd5 Bxd5 8. Bxd5 Qd7 9. d3 0-0-0 10. Bxc6 Qxc6 11. c3 f6 12. b4 Bb6 13. Qb3 d5 14. b5 Qe6 15. a4 Ba5 16. Ba3 Ne7 17. Bb4 Bxb4 18. cxb4 Rhe8 19. Rac1 Rd6 20. Qc3 Qd7 21. Rfe1 dxe4 22. dxe4 Rd3 23. Qc2 c6 24. bxc6 Nxc6 25. b5 Kd8 26. bxc6 bxc6 27. Qxc6 Qxc6 28. Rxc6 Ra3 29. Ra6 Re7 30. Rb1 Ke8 31. Kf1 Kf7 32. a5 Kg6 33. Nd2 h5 34. Ke2 Kg5 35. Rb3 Ra2 36. Rg3+ Kh6 37. h4 Rd7 38. Rd3 Rxd3 39. Kxd3 Kg6 40. Rxa7 f5 41. Ra6+ Kh7 42. exf5 Kg8 43. g3 Kf7 44. f3 e4+ 45. Nxe4 Kf8 46. Ng5 Kg8 47. Ra8# 1-0

[Event "NED-ch U14"]
[Site "Rijswijk"]
[Date "2000.??.??"]
[Round "?"]
[White "Spoelman, Wouter"]
[Black "Van Os, Ben"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "87"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 d6 5. c3 Bg4 6. h3 Bh5 7. b4 Bb6 8. a4 Nf6 9. a5 Bxf2+ 10. Rxf2 Nxe4 11. Rf1 Qf6 12. d3 Ng5 13. Bxg5 Bxf3 14. Bxf6 Bxd1 15. Bxg7 Rg8 16. Bxf7+ Kd7 17. Bxg8 Rxg8 18. Bxe5 Nxe5 19. Rxd1 Nf3+ 20. Kf2 Ne5 21. d4 Nc4 22. Na3 Rf8+ 23. Ke2 Re8+ 24. Kd3 Nb2+ 25. Kd2 Nxd1 26. Rxd1 Rg8 27. g4 Rf8 28. Ke3 Ke6 29. d5+ Ke5 30. Nc4+ Kf6 31. Rf1+ Ke7 32. Rxf8 Kxf8 33. Kf4 Kf7 34. Kf5 Kg7 35. h4 Kf7 36. Ne3 Ke7 37. Kg5 Kf7 38. Kh6 Kg8 39. Nf5 b6 40. axb6 axb6 41. Ne7+ Kh8 42. c4 c5 43. dxc6 d5 44. c7 1-0

[Event "NED-ch U14"]
[Site "Rijswijk"]
[Date "2000.??.??"]
[Round "?"]
[White "Steneker, Mathijs"]
[Black "Van Os, Ben"]
[Result "0-1"]
[ECO "C44"]
[PlyCount "64"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 Nf6 4. Bg5 exd4 5. e5 h6 6. Bh4 g5 7. Bg3 Nh5 8. Nxd4 Nxg3 9. fxg3 Nxe5 10. Nf3 Bg7 11. c3 d5 12. Be2 Be6 13. 0-0 Qd6 14. Nd4 0-0-0 15. Nd2 Kb8 16. a4 Rhe8 17. a5 a6 18. Qb3 Re7 19. Qc2 Rde8 20. b4 Bd7 21. Bd3 Nc6 22. Qb2 Nxd4 23. cxd4 Bb5 24. Bxb5 axb5 25. Nf3 Re2 26. Qc3 g4 27. Ne5 Bxe5 28. dxe5 R8xe5 29. Rxf7 d4 30. Qb3 Qd5 31. Rf8+ Ka7 32. Qd1 Qxg2# 0-1

[Event "NED-ch U14"]
[Site "Rijswijk"]
[Date "2000.??.??"]
[Round "?"]
[White "Van Os, Ben"]
[Black "Burg, Twan"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "130"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 d6 4. 0-0 Nf6 5. d3 e6 6. Bg5 Be7 7. Nbd2 0-0 8. c3 a6 9. Rc1 b5 10. Bb3 Bb7 11. Re1 h6 12. Bh4 Re8 13. d4 cxd4 14. cxd4 Nb4 15. Re3 Ng4 16. Bxe7 Nxe3 17. Bxd8 Nxd1 18. Rxd1 Rexd8 19. a3 Nc6 20. d5 exd5 21. exd5 Ne7 22. Ne4 Rac8 23. h3 Ng6 24. Kf1 Nf4 25. Rd4 Ng6 26. Ke2 a5 27. g4 Nf4+ 28. Ke3 Nxh3 29. Nh2 Ng5 30. Nxg5 hxg5 31. Nf3 f6 32. Re4 Re8 33. Nd4 Rxe4+ 34. Kxe4 Re8+ 35. Kd3 Ba6 36. Kc3 Kf7 37. Nf5 Rd8 38. Kd4 g6 39. Nxd6+ Rxd6 40. Kc5 Ke7 41. Bc2 Bb7 42. Be4 b4 43. a4 Bc8 44. Kb5 Bxg4 45. Kxa5 f5 46. Bh1 Be2 47. Kxb4 g4 48. Kc5 f4 49. b4 f3 50. b5 g3 51. Bxf3 Bxf3 52. fxg3 Rxd5+ 53. Kb6 Rxb5+ 54. Kxb5 Kf6 55. Kc4 Kg5 56. Kd3 Kg4 57. Kd2 Kxg3 58. Ke1 Kg2 59. a5 Ba8 60. a6 g5 61. a7 g4 62. Ke2 g3 63. Ke1 Kg1 64. Ke2 g2 65. Ke1 Kh2 0-1

[Event "NED-ch U14"]
[Site "Rijswijk"]
[Date "2000.??.??"]
[Round "?"]
[White "Van Os, Ben"]
[Black "Corporaal, Roelof"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "91"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Bd7 4. Bc4 h6 5. Nc3 Nc6 6. Be3 a6 7. 0-0 Nf6 8. Nh4 Nxe4 9. Nxe4 Qxh4 10. Qf3 f6 11. c3 Bg4 12. Qg3 Qxg3 13. Nxg3 0-0-0 14. a4 Rh7 15. b4 d5 16. Bd3 e4 17. Be2 Bxe2 18. Nxe2 Bd6 19. b5 axb5 20. axb5 Nb8 21. Rfc1 g5 22. c4 dxc4 23. Rxc4 b6 24. d5 Rhd7 25. Bxb6 Be5 26. Rac1 f5 27. Ba5 Re8 28. b6 Ree7 29. Nd4 Na6 30. Nc6 Bxh2+ 31. Kxh2 Rf7 32. Ne5 Rxd5 33. Nxf7 Rd7 34. Nxh6 Kb7 35. bxc7 Nxc7 36. Bxc7 Rd5 37. Rb4+ Kc8 38. Rb8+ Kd7 39. Rd8+ Ke6 40. Rc6+ Ke7 41. Rxd5 Ke8 42. Ba5 Ke7 43. Nxf5+ Ke8 44. g4 Kf7 45. Rd7+ Kf8 46. Rc8# 1-0

[Event "NED-ch U14"]
[Site "Rijswijk"]
[Date "2000.??.??"]
[Round "?"]
[White "Van Os, Ben"]
[Black "Kuipers, Stefan"]
[Result "0-1"]
[ECO "C52"]
[PlyCount "102"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. Nxd4 Qe7 8. Qd3 Nf6 9. Bg5 Qxe4+ 10. Qxe4+ Nxe4 11. Be3 Nxc3 12. 0-0 0-0 13. Nxc3 Bxc3 14. Nf5 Bxa1 15. Rxa1 d5 16. Bd3 Bxf5 17. Bxf5 Rad8 18. h4 d4 19. Bd2 Ne7 20. Be4 f5 21. Bxb7 Nd5 22. h5 h6 23. f3 f4 24. Kh2 Ne3 25. a4 Rf5 26. g4 fxg3+ 27. Kxg3 Rxh5 28. a5 Nc4 29. Be1 d3 30. Ra2 d2 31. Bxd2 Rxd2 32. Ra1 Ne5 33. Re1 c5 34. a6 c4 35. Rc1 Rg5+ 36. Kf4 Nd3+ 37. Ke3 Nxc1 38. Kxd2 Nb3+ 39. Kc3 Na5 40. f4 Rf5 41. Kb4 g5 42. fxg5 hxg5 43. Kc3 Nxb7 44. axb7 Rb5 45. Kxc4 Rxb7 46. Kd3 a5 47. Ke4 a4 48. Kf5 a3 49. Kxg5 Rf7 50. Kg6 Kf8 51. Kg5 a2 0-1

[Event "NED-ch U14"]
[Site "Rijswijk"]
[Date "2000.??.??"]
[Round "?"]
[White "Van Os, Ben"]
[Black "Spork, Charlie"]
[Result "1-0"]
[ECO "D60"]
[PlyCount "35"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Be7 7. Bd3 0-0 8. 0-0 h6 9. Bh4 b6 10. a3 Bb7 11. Re1 Rc8 12. Rc1 c5 13. cxd5 Nxd5 14. Bxe7 Qxe7 15. h3 e5 16. Bb1 Qd6 17. Qd3 exd4 18. Qh7# 1-0

[Event "NED-ch U14"]
[Site "Rijswijk"]
[Date "2000.??.??"]
[Round "?"]
[White "Vlug, Arthur"]
[Black "Van Os, Ben"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "110"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d4 exd4 6. e5 Ng4 7. Qe2 Qe7 8. Bf4 d6 9. exd6 Qxe2 10. Bxe2 Bxd6 11. Bxd6 cxd6 12. Re1 Nge5 13. Bb5 0-0 14. Bxc6 Nxc6 15. c3 d3 16. Nbd2 Bf5 17. Ne4 d5 18. Nd6 Bg6 19. Ne5 Nxe5 20. Rxe5 Rad8 21. Nxb7 Rb8 22. Nc5 Rxb2 23. Rxd5 Rb5 24. c4 Ra5 25. Rd1 Re8 26. h3 h5 27. Nxd3 Rxa2 28. Nb4 Ra4 29. Rd8 Kf8 30. Nc6 f6 31. Rxe8+ Bxe8 32. Rd8 Kf7 33. Rc8 Rxc4 34. Ne5+ fxe5 35. Rxc4 a5 36. Kf1 Bb5 37. Ke1 Bxc4 38. Kd2 Bb3 39. Kc1 a4 40. Kb2 Ke6 41. Kc3 Kd5 42. f3 e4 43. fxe4+ Kxe4 44. Kb2 h4 45. Ka3 Ke3 46. Kb2 Kf2 47. g4 hxg3 48. h4 g6 49. Ka1 g2 50. Kb2 g1Q 51. Ka3 Qg4 52. Kb2 Qb4 53. Ka1 Qc3+ 54. Kb1 Qc2+ 55. Ka1 Qa2# 0-1

