[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.05.04"]
[Round "9"]
[White "Do, Khoa"]
[Black "Van der Meulen, Freerk Rinder"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "109"]
[EventDate "1996.04.25"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. 0-0 Bxd5 13. exd5 Ne7 14. Nxb5 Bg7 15. Nc3 e4 16. Bc4 0-0 17. Ne2 Qc8 18. b3 Ng6 19. Rb1 f4 20. f3 f5 21. Kh1 Qe8 22. Qe1 Bf6 23. fxe4 Bh4 24. Qb4 fxe4 25. Qxd6 Rf6 26. Qc7 f3 27. gxf3 exf3 28. Ng3 Ne5 29. d6+ Kh8 30. d7 Nxd7 31. Rbe1 Qc8 32. Qxc8+ Rxc8 33. Re3 Bxg3 34. hxg3 Rcf8 35. Bd5 f2 36. Kg2 h5 37. Bf3 Rf5 38. Kxf2 Ne5 39. Kg2 Ng4 40. Rc3 R8f6 41. Rd1 Kg7 42. Rd7+ Kh6 43. Bxg4 hxg4 44. Rd2 Kg6 45. Rcd3 Kg5 46. a4 Re5 47. Rd8 Rfe6 48. R2d5 Kf5 49. Rf8+ Kg6 50. Rxe5 Rxe5 51. Kf2 Re6 52. Rd8 Kf5 53. Rd5+ Kf6 54. Rd4 Kg5 55. b4 1-0

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.05.03"]
[Round "8"]
[White "Bakker, Sven"]
[Black "Do, Khoa"]
[Result "0-1"]
[ECO "D16"]
[PlyCount "40"]
[EventDate "1996.04.25"]
[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. Nf3 dxc4 5. a4 Bg4 6. Ne5 Bh5 7. f3 Nfd7 8. Nxc4 e5 9. Ne4 Bb4+ 10. Bd2 Qe7 11. dxe5 0-0 12. f4 Na6 13. Rc1 Rfd8 14. Ng3 Bg4 15. Qc2 Nb6 16. Bxb4 Qxb4+ 17. Qc3 Qxa4 18. b3 Qb4 19. e4 Rd1+ 20. Kf2 Qc5+ 0-1

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.05.02"]
[Round "7"]
[White "Van Delft, Merijn"]
[Black "Do, Khoa"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2185"]
[PlyCount "95"]
[EventDate "1996.04.25"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 Bg7 5. Qd2 0-0 6. f3 e5 7. Nge2 Nc6 8. 0-0-0 b5 9. Nxb5 Rb8 10. d5 Rxb5 11. dxc6 a5 12. Nc3 Rb8 13. Bh6 Rb6 14. Bxg7 Kxg7 15. Bb5 Be6 16. a4 Ng8 17. g4 Qh4 18. Nd5 Bxd5 19. exd5 f5 20. h3 Qg3 21. Rdf1 Ne7 22. Bc4 Rb4 23. b3 Nc8 24. c3 Rb8 25. h4 fxg4 26. Rhg1 Qxh4 27. Rh1 Qe7 28. Qh6+ Kg8 29. fxg4 Nb6 30. Bd3 e4 31. Rxf8+ Rxf8 32. Bxe4 Qg7 33. Qxg7+ Kxg7 34. c4 Rf4 35. Re1 Kf6 36. c5 dxc5 37. d6 cxd6 38. c7 Rxg4 39. Bd5 Rf4 40. Re6+ Kg7 41. Rxd6 Nc8 42. Rd7+ Kf8 43. Rd8+ Ke7 44. Rxc8 Kd6 45. Rh8 Kxc7 46. Rxh7+ Kd6 47. Bc4 Ke5 48. Kd2 1-0

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.05.01"]
[Round "6"]
[White "Do, Khoa"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B14"]
[BlackElo "2230"]
[PlyCount "62"]
[EventDate "1996.04.25"]
[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 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Bg5 dxc4 7. Bxf6 exf6 8. Bxc4 Nc6 9. d5 Ne5 10. Qe2 Bh6 11. Bb5+ Kf8 12. Nh3 a6 13. Ba4 Bg4 14. Qe4 Bf5 15. Qb4+ Kg7 16. 0-0 b5 17. Bb3 Bxh3 18. gxh3 Nd3 19. Qh4 Bf4 20. Rad1 h5 21. Rxd3 g5 22. Qxf4 gxf4 23. d6 Re8 24. Rfd1 Re5 25. Kh1 b4 26. Nb1 Re2 27. Nd2 Qb6 28. d7 Qxf2 29. Rg1+ Kf8 30. Nf1 Rd8 31. Ba4 Re1 0-1

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.30"]
[Round "5"]
[White "Do, Khoa"]
[Black "Gommers, Ralf"]
[Result "0-1"]
[ECO "B73"]
[PlyCount "152"]
[EventDate "1996.04.25"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 0-0 8. 0-0 Nc6 9. Kh1 d5 10. exd5 Nxd5 11. Nxd5 Nxd4 12. Bxd4 Qxd5 13. Bxg7 Qxd1 14. Rfxd1 Kxg7 15. Rd2 Bf5 16. Rad1 Rac8 17. c3 Kf6 18. Kg1 b6 19. f3 Be6 20. Rd4 Rc5 21. a3 Rfc8 22. Kf2 R8c7 23. R1d2 a5 24. Ke1 h6 25. Rd8 Rc8 26. Kf2 h5 27. f4 Bb3 28. Ke3 R5c6 29. Rxc8 Rxc8 30. Bf3 Be6 31. Rd4 Kg7 32. Kd3 Bf5+ 33. Kd2 f6 34. b4 Be6 35. Bd5 Kf7 36. Kd3 axb4 37. Bxe6+ Kxe6 38. Rxb4 Rc6 39. Rc4 Rd6+ 40. Kc2 Kf5 41. Rc7 Re6 42. Kd2 Kxf4 43. c4 Rd6+ 44. Ke2 e5 45. a4 f5 46. c5 bxc5 47. Rxc5 Ra6 48. a5 e4 49. Rb5 h4 50. Kf2 g5 51. Rc5 Rd6 52. Rc2 Ke5 53. Ra2 Ra6 54. Ke3 Kd5 55. h3 Kc4 56. Ra1 Kb4 57. Kd4 Kb3 58. Rb1+ Kc2 59. Rb5 Kd2 60. Rb2+ Ke1 61. Ke3 Kf1 62. Rf2+ Kg1 63. Rxf5 g4 64. Rf2 Rxa5 65. Rb2 g3 66. Kxe4 Ra1 67. Kf3 Rf1+ 68. Kg4 Rf2 69. Rb4 Kxg2 70. Kxh4 Kh2 71. Kg4 g2 72. Rb1 Rf1 73. Rb2 Rf8 74. h4 Rg8+ 75. Kf5 Kh3 76. Rxg2 Rxg2 0-1

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.29"]
[Round "4"]
[White "Mellegers, Joost P"]
[Black "Do, Khoa"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2195"]
[PlyCount "111"]
[EventDate "1996.04.25"]
[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 d6 2. d4 Nf6 3. f3 g6 4. Be3 Nc6 5. d5 Nb8 6. Qd2 c6 7. c4 Bg7 8. Nc3 Bd7 9. Nge2 Na6 10. h3 cxd5 11. cxd5 0-0 12. Nd4 Nc5 13. Be2 Rc8 14. 0-0 Nh5 15. Kh2 e5 16. dxe6 Nxe6 17. f4 Qh4 18. Bxh5 Qxh5 19. Nd5 Rc4 20. Nf3 Rxe4 21. g4 Qh6 22. f5 Rxe3 23. Qxe3 Qxe3 24. Nxe3 Nd4 25. Rad1 Nxf3+ 26. Rxf3 Be5+ 27. Kg1 Bc6 28. Nd5 Kg7 29. f6+ Bxf6 30. Rxf6 Bxd5 31. Rxd6 Bxa2 32. Ra1 Bc4 33. Rxa7 Ba6 34. b4 Rc8 35. Rb6 Rc1+ 36. Kf2 Rb1 37. b5 Rxb5 38. Rxb5 Bxb5 39. Rxb7 Bc4 40. g5 h6 41. gxh6+ Kxh6 42. Kg3 Be6 43. h4 Kg7 44. Kf4 Bd5 45. Ra7 Be6 46. Ra1 Kf6 47. Ra6 Kg7 48. Ke5 Bc4 49. Ra7 Bb3 50. Ra3 Bd1 51. Kd6 Bg4 52. Ke7 Be6 53. Rg3 Bc4 54. h5 Ba2 55. Rg5 Bb3 56. hxg6 1/2-1/2

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.27"]
[Round "3"]
[White "Do, Khoa"]
[Black "Jonker, Fred"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "74"]
[EventDate "1996.04.25"]
[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 Nc6 2. Nf3 d5 3. exd5 Qxd5 4. Nc3 Qa5 5. d4 Bg4 6. Bb5 e6 7. 0-0 Bb4 8. Bxc6+ bxc6 9. Ne4 Qd5 10. Qe2 Ne7 11. h3 Bh5 12. Bf4 Bg6 13. Ng3 Bd6 14. c4 Qa5 15. Ne5 0-0 16. Ne4 Rad8 17. Rfd1 Bxe5 18. Bxe5 Nf5 19. Nc5 Qb6 20. a4 Nd6 21. Ra3 Qb4 22. Rc1 Rc8 23. Rb3 Qa5 24. Bf4 Ne4 25. Nxe4 Qf5 26. Nd6 Qxf4 27. Rd1 cxd6 28. g3 Qe4 29. Re3 Qc2 30. Rd2 Qxa4 31. h4 Qa5 32. g4 h5 33. Ra3 Qb4 34. gxh5 Bxh5 35. Qe3 Qxc4 36. Ra5 c5 37. Qg5 Qd5 0-1

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.26"]
[Round "2"]
[White "Dambacher, Martijn"]
[Black "Do, Khoa"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "53"]
[EventDate "1996.04.25"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Qe2 Nc6 6. e5 dxe5 7. dxe5 Ng4 8. e6 Nd4 9. Qxg4 Nxc2+ 10. Ke2 Nxa1 11. Nf3 Bxe6 12. Bxe6 fxe6 13. Rd1 Qc8 14. Be3 0-0 15. Rxa1 b6 16. Kf1 e5 17. Qc4+ Kh8 18. Ng5 Qf5 19. Ne6 Rf6 20. Nxg7 Kxg7 21. Qxc7 Qd3+ 22. Kg1 Qd6 23. Qb7 Rd8 24. Qxa7 b5 25. h3 Rd7 26. Qa5 Rb7 27. Ne4 1-0

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.25"]
[Round "1"]
[White "Do, Khoa"]
[Black "De Vreugt, Dennis"]
[Result "1-0"]
[ECO "B33"]
[BlackElo "2205"]
[PlyCount "73"]
[EventDate "1996.04.25"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. 0-0 Bxd5 13. exd5 Ne7 14. Nxb5 Bg7 15. Nc3 e4 16. Bc4 0-0 17. Ne2 Qc7 18. b3 Ng6 19. Ng3 Bxa1 20. Qxa1 Ne5 21. Nxf5 Qd7 22. Nd4 f5 23. Be2 f4 24. f3 e3 25. Ne6 Rf6 26. Qd4 Qf7 27. c4 Rf5 28. g4 fxg3 29. hxg3 Nxf3+ 30. Rxf3 Rxf3 31. Bxf3 Qg6 32. Qg4 a5 33. Qxg6+ hxg6 34. c5 dxc5 35. d6 Ra7 36. Nxc5 Kf7 37. Kf1 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "5"]
[White "De Gleria, Francesco"]
[Black "Do, Khoa"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2270"]
[PlyCount "137"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 0-0 6. Nge2 e5 7. 0-0 Nc6 8. h3 exd4 9. Nxd4 Bd7 10. Be3 Re8 11. a4 Nxd4 12. Bxd4 c5 13. Be3 Bc6 14. Qd3 Qe7 15. Bg5 h6 16. Bxf6 Qxf6 17. Nd5 Bxd5 18. Qxd5 b6 19. c3 Rad8 20. f4 Qe6 21. Rad1 Qxd5 22. Rxd5 Kf8 23. h4 Ke7 24. h5 gxh5 25. Rxh5 d5 26. Rxd5 Rxd5 27. exd5 Kd6 28. Kf2 Rb8 29. Ra1 Bf6 30. Bf3 Rb7 31. Be2 Re7 32. Rh1 Bg7 33. Bf3 Re8 34. Rh5 a6 35. Rh1 Rh8 36. Be2 a5 37. Rh5 Re8 38. Rf5 Re7 39. Bh5 f6 40. Bf3 Bh8 41. Rh5 Bg7 42. g4 Bf8 43. Rh1 Bg7 44. Rb1 h5 45. gxh5 Bh6 46. Rg1 Bxf4 47. Rg8 Bg5 48. Rb8 Kc7 49. d6+ Kxd6 50. Rxb6+ Ke5 51. Rb5 Kf4 52. Rb7 Re3 53. Bc6 Rh3 54. Rd7 Rxh5 55. Rd3 Rh8 56. b3 Rb8 57. Bb5 Rh8 58. Rf3+ Ke5 59. Ke2 Rh2+ 60. Kd3 Rh4 61. Bd7 Rh7 62. Bg4 Rf7 63. Rf5+ Kd6 64. Kc4 Be3 65. Rd5+ Kc6 66. Bf3 Kb6 67. Rd6+ Kc7 68. Re6 f5 69. Rxe3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "9"]
[White "De Groot, Tim"]
[Black "Do, Khoa"]
[Result "0-1"]
[ECO "A22"]
[PlyCount "96"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. d3 c6 4. Bg5 Be7 5. e4 d6 6. Bxf6 Bxf6 7. g3 Na6 8. h3 0-0 9. Nge2 Nc7 10. Bg2 g6 11. Qd2 Bg7 12. f4 exf4 13. Nxf4 Ne6 14. 0-0 Nd4 15. Kh2 Qa5 16. Rfd1 Rb8 17. Nfe2 Nxe2 18. Nxe2 Qxd2 19. Rxd2 b5 20. Rb1 Ba6 21. cxb5 Rxb5 22. b3 Rfb8 23. d4 Rb4 24. d5 cxd5 25. exd5 Bh6 26. Rdb2 Bd3 27. Rd1 Bg7 28. Rbd2 Bf5 29. Nd4 Bxd4 30. Rxd4 Rxd4 31. Rxd4 Rc8 32. Rd2 Rc2 33. Rxc2 Bxc2 34. Kg1 Kg7 35. Kf2 Kf6 36. Ke3 Ke5 37. Kd2 Be4 38. Bxe4 Kxe4 39. Kc3 Kxd5 40. Kb4 f5 41. Ka5 g5 42. Ka6 f4 43. Kxa7 fxg3 44. a4 g2 45. a5 g1Q+ 46. Kb7 Qe3 47. a6 Qxb3+ 48. Ka7 Kc6 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "6"]
[White "Do, Khoa"]
[Black "Kerstens, Dennis"]
[Result "0-1"]
[ECO "C80"]
[PlyCount "70"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Re1 Nc5 7. Bxc6 bxc6 8. Nxe5 Ne6 9. Qf3 Qf6 10. Qxf6 gxf6 11. Nf3 c5 12. b3 Bb7 13. Nh4 0-0-0 14. Bb2 Nd4 15. Na3 Rg8 16. g3 f5 17. Bxd4 cxd4 18. Nc4 f4 19. Re2 Bg7 20. d3 Bf6 21. Nf5 Rg5 22. Nfd6+ cxd6 23. Nxd6+ Kc7 24. Nxf7 Rgg8 25. Nxd8 Kxd8 26. b4 h5 27. a4 h4 28. Rae1 hxg3 29. fxg3 f3 30. Re4 Bxe4 31. Rxe4 Bg5 32. Kf2 Rf8 33. h4 Be3+ 34. Kf1 Rg8 35. g4 d5 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "1"]
[White "Do, Khoa"]
[Black "Van Hemert, P."]
[Result "1-0"]
[ECO "C68"]
[PlyCount "77"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 a6 5. Bxc6+ bxc6 6. dxe5 Bg4 7. exd6 cxd6 8. 0-0 Nf6 9. Nc3 Be7 10. e5 dxe5 11. Qxd8+ Rxd8 12. Nxe5 Bd7 13. Re1 0-0 14. Bg5 h6 15. Bh4 Rfe8 16. Nxd7 Rxd7 17. Bxf6 gxf6 18. Ne4 Bd8 19. Nxf6+ Bxf6 20. Rxe8+ Kh7 21. c3 Rd2 22. Rb1 Bh4 23. g3 Bg5 24. Rc8 Rc2 25. Rxc6 Bc1 26. b4 Bd2 27. a4 Rxc3 28. Rxc3 Bxc3 29. a5 Kg6 30. b5 axb5 31. a6 Bd4 32. Rxb5 f5 33. Rd5 Ba7 34. Rd6+ Kg5 35. h4+ Kg4 36. Kg2 Kh5 37. f3 Bb8 38. Rc6 Ba7 39. Kh3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "3"]
[White "Do, Khoa"]
[Black "Van Otten, Gerard J"]
[Result "1-0"]
[ECO "B85"]
[PlyCount "80"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e6 7. 0-0 Be7 8. Be3 0-0 9. Nb3 Re8 10. f4 a6 11. a4 Qc7 12. a5 Bf8 13. Bf3 Bd7 14. Qd2 Rac8 15. Rfd1 Qb8 16. Na4 Rcd8 17. Nb6 Be7 18. c4 Bc8 19. Qf2 Nd7 20. Na4 Bf8 21. Nc3 Be7 22. g4 Rf8 23. Kh1 Qc7 24. Bb6 Nxb6 25. axb6 Qb8 26. Rd2 Kh8 27. Rad1 Kg8 28. Nd4 Bd7 29. Nce2 Rc8 30. Nb3 Nb4 31. c5 d5 32. Qd4 Nc6 33. Qe3 d4 34. Nbxd4 Nxd4 35. Qxd4 Bb5 36. b4 a5 37. Nc3 Be8 38. e5 axb4 39. Ne4 Bc6 40. Qxb4 Bxe4 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "7"]
[White "Do, Khoa"]
[Black "Van der Meulen, Freerk Rinder"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "103"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. c4 a6 10. Nc3 Be7 11. Be2 0-0 12. 0-0 Bf5 13. f4 exf4 14. Bxf4 Bg6 15. Kh1 Nd7 16. Rc1 Re8 17. b4 Bg5 18. Qd2 Bxf4 19. Qxf4 Ne5 20. c5 Rc8 21. Na4 Rc7 22. Rfd1 Rce7 23. Nc3 dxc5 24. bxc5 Bd3 25. d6 Re6 26. Rxd3 Nxd3 27. Bxd3 Re1+ 28. Rxe1 Rxe1+ 29. Bf1 Qg5 30. d7 Qd8 31. Ne4 Qc7 32. g3 Qd8 33. Qe5 Kf8 34. Qd6+ Kg8 35. Qd3 g6 36. Kg1 Rxe4 37. Qxe4 Qxd7 38. Bc4 Qd1+ 39. Kg2 Qd2+ 40. Qe2 Qd7 41. Qd3 Qc6+ 42. Qd5 Qc7 43. Qd6 Qc8 44. Qe7 Qf5 45. Bb3 Kg7 46. Qxb7 Qf6 47. Qxf7+ Qxf7 48. Bxf7 Kxf7 49. Kf3 Ke6 50. Ke4 h6 51. h3 h5 52. h4 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "8"]
[White "Jonker, Fred"]
[Black "Do, Khoa"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "45"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Qe2 Nc6 6. e5 Nxd4 7. exf6 Nxe2 8. fxg7 Rg8 9. Ngxe2 Rxg7 10. Bh6 Rg8 11. 0-0-0 Be6 12. Bxe6 fxe6 13. Nd4 Qd7 14. Rhe1 e5 15. Nf3 Qg4 16. Nd5 Qxg2 17. Re3 Rc8 18. Nxe5 Qxf2 19. Ng4 Qf7 20. Ngf6+ Kd8 21. Nxg8 e5 22. Rxe5 dxe5 23. Ndf6+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "4"]
[White "Kuipers, Eelco"]
[Black "Do, Khoa"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2165"]
[PlyCount "58"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f3 c6 5. Be3 b5 6. Qd2 Nbd7 7. 0-0-0 Qc7 8. Kb1 Nb6 9. Bd3 Rb8 10. Nce2 Nc4 11. Bxc4 bxc4 12. c3 Nd7 13. h4 h5 14. Ka1 Qa5 15. Nh3 Nb6 16. Qc2 Na4 17. Rb1 Bg7 18. Nf2 Rb6 19. a3 d5 20. Nc1 Bd7 21. Na2 0-0 22. g4 Rfb8 23. Nb4 Nxc3 24. bxc3 Rxb4 25. Rxb4 Qxa3+ 26. Kb1 Rxb4+ 27. cxb4 Qxe3 28. gxh5 Qxd4 29. Ka2 Qb6 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "2"]
[White "Mellegers, Joost P"]
[Black "Do, Khoa"]
[Result "1-0"]
[ECO "B89"]
[WhiteElo "2195"]
[PlyCount "49"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be3 e6 7. Bc4 Be7 8. Qe2 a6 9. Bb3 0-0 10. 0-0-0 Qc7 11. g4 b5 12. g5 Nd7 13. Nxc6 Qxc6 14. Nd5 Bd8 15. Rhg1 a5 16. a3 Rb8 17. Bd4 g6 18. Nf6+ Nxf6 19. gxf6 e5 20. Bd5 Qe8 21. Ba7 Rb7 22. Bxb7 Bxb7 23. Rxd6 Bc7 24. Qd2 Kh8 25. Rd7 1-0

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "5"]
[White "Do, Khoa"]
[Black "Loman, Jelmar"]
[Result "1/2-1/2"]
[ECO "C08"]
[PlyCount "104"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 c4 6. Be2 Bd6 7. 0-0 Nf6 8. a4 Nc6 9. c3 0-0 10. b3 cxb3 11. Nxb3 Ne4 12. Bb2 Be6 13. Nbd2 f5 14. c4 Rc8 15. cxd5 Bxd5 16. Nc4 Bb8 17. Ne3 Ne7 18. Nxd5 Qxd5 19. Ne5 Bxe5 20. dxe5 Qe6 21. Rc1 Rxc1 22. Qxc1 Rc8 23. Qa1 h6 24. Rc1 Kh7 25. Rxc8 Qxc8 26. f3 Ng5 27. Qc1 Qxc1+ 28. Bxc1 Nc6 29. f4 Ne6 30. Bc4 Ncd8 31. Be3 a6 32. g4 g6 33. gxf5 gxf5 34. Bd5 Kg6 35. Bf3 Kg7 36. Kf2 Kf8 37. Ke2 Ke7 38. Kd3 Kd7 39. Kc4 Nc6 40. Bh5 Ne7 41. Bf7 Nd8 42. Bd5 Nec6 43. Bc5 Ne6 44. Bxe6+ Kxe6 45. Bf8 h5 46. Kc5 Nd8 47. Kb6 Kd7 48. Bh6 Kc8 49. Kc5 Kd7 50. Kd5 Ne6 51. a5 Nd8 52. Kc5 Ne6+ 1/2-1/2

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "7"]
[White "Do, Khoa"]
[Black "Solleveld, Maarten"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "94"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nf3 Bg4 5. Nc3 Qa5 6. Be2 0-0-0 7. Be3 Nf6 8. h3 Bh5 9. 0-0 e5 10. Nxe5 Bxe2 11. Nxc6 Bxd1 12. Nxa5 Bxc2 13. Rac1 Bd3 14. Rfd1 Ba6 15. a3 Nd5 16. b4 Nxc3 17. Rxc3 Rd5 18. Bf4 Bd6 19. Bxd6 Rxd6 20. Rdc1 c6 21. a4 Kb8 22. Rc5 Bd3 23. R1c3 Be4 24. f3 Bd5 25. b5 Rc8 26. bxc6 Bxc6 27. Nb3 Bd7 28. Rxc8+ Bxc8 29. Kf2 Be6 30. Ke3 b6 31. a5 Bxb3 32. Rxb3 Kc7 33. axb6+ axb6 34. Ke4 Re6+ 35. Kd5 Kd7 36. Ra3 Rd6+ 37. Kc4 Kc6 38. Rd3 Rd5 39. Rb3 b5+ 40. Kd3 Rd7 41. Rc3+ Kd6 42. Rc5 Rb7 43. Rf5 f6 44. Kc3 Ke6 45. Rc5 g6 46. Kb4 f5 47. Rc8 Kd6 1/2-1/2

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "1"]
[White "Do, Khoa"]
[Black "Van den Berg, Bram"]
[Result "0-1"]
[ECO "B73"]
[PlyCount "50"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. 0-0 0-0 9. Kh1 Bd7 10. f4 Qc8 11. Nxc6 Bxc6 12. Bf3 b6 13. Rf2 Qb7 14. Nd5 e6 15. Nxf6+ Bxf6 16. Bd4 e5 17. Bc3 Rad8 18. Re2 Bg7 19. Qe1 f5 20. Rd1 fxe4 21. Bxe4 d5 22. Bf3 e4 23. Qh4 d4 24. Bg4 Bf6 25. Be6+ Kh8 0-1

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "9"]
[White "Do, Khoa"]
[Black "Wempe, Joost"]
[Result "1-0"]
[ECO "C05"]
[PlyCount "65"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Ne4 5. Bd3 Nxd2 6. Bxd2 c5 7. dxc5 Nd7 8. Nf3 Nxc5 9. Qe2 Bd7 10. 0-0 Rc8 11. Be3 Be7 12. Rfe1 a6 13. Bxc5 Bxc5 14. c3 h6 15. Rac1 0-0 16. Bb1 Bb5 17. Qc2 g6 18. h4 Kg7 19. h5 Be8 20. Rcd1 Rh8 21. hxg6 fxg6 22. Nd4 Qe7 23. Re3 Rf8 24. Rg3 Bxd4 25. Rxg6+ Bxg6 26. Qxg6+ Kh8 27. Qxh6+ Kg8 28. Rxd4 Rc4 29. Rd3 Rg4 30. Rh3 Qg7 31. Qxe6+ Rf7 32. Qxd5 Rg5 33. Bh7+ 1-0

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "6"]
[White "Kerstens, Dennis"]
[Black "Do, Khoa"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "110"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 7. Qd2 Rb8 8. h4 h5 9. Nh3 b5 10. 0-0 Ne5 11. f3 Ne7 12. Rae1 Qa5 13. a3 b4 14. Nd1 N5c6 15. axb4 cxb4 16. f4 0-0 17. Kh1 d5 18. f5 exf5 19. Bh6 dxe4 20. Bxg7 Kxg7 21. dxe4 fxe4 22. Rxe4 Qd5 23. Qxd5 Nxd5 24. Ng5 Nce7 25. Kh2 Nf5 26. Rfe1 Nf6 27. Rc4 Bd7 28. Bh3 Rfc8 29. Rxc8 Rxc8 30. c3 bxc3 31. Nxc3 Rc7 32. Nf3 Rb7 33. Re2 Nh6 34. Ne5 Nhg4+ 35. Nxg4 Bxg4 36. Bxg4 Nxg4+ 37. Kg2 f6 38. Nd5 Rd7 39. Nf4 Kf7 40. Kf3 Ne5+ 41. Ke4 Nc4 42. Rc2 Nb6 43. Kf3 Rb7 44. Nd3 Nd5 45. Rd2 Ne7 46. Nc5 Rc7 47. Ne4 Nf5 48. Kf4 Ke6 49. Nc3 Rc4+ 50. Kf3 Rd4 51. Re2+ Kd7 52. Ne4 Kc6 53. Nxf6 Rd3+ 54. Kf4 Rxg3 55. Rc2+ Kb6 0-1

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "4"]
[White "Michalczyk, Marek"]
[Black "Do, Khoa"]
[Result "0-1"]
[ECO "A25"]
[PlyCount "66"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. e3 Nge7 6. Nge2 0-0 7. 0-0 d6 8. d4 exd4 9. Nxd4 Nxd4 10. exd4 Nf5 11. Be3 Re8 12. Qd3 c6 13. b4 Qe7 14. Rfe1 Nxd4 15. Qd2 Ne6 16. Rad1 Rd8 17. b5 Qc7 18. bxc6 bxc6 19. Nb5 cxb5 20. Bxa8 bxc4 21. Bd5 Bb7 22. Bxb7 Qxb7 23. Qd5 Qxd5 24. Rxd5 Nc7 25. Rdd1 c3 26. Re2 Nb5 27. a4 Na3 28. Ra2 Nc4 29. Bd4 Nb2 30. Bxg7 Nxd1 31. Bd4 Rc8 32. Rc2 Rc4 33. Bf6 d5 0-1

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "3"]
[White "Remmel, Tim"]
[Black "Do, Khoa"]
[Result "1/2-1/2"]
[ECO "B48"]
[PlyCount "84"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be3 Nf6 6. Nc3 Qc7 7. f3 Nc6 8. Qd2 b5 9. a3 Bb7 10. g4 Nxd4 11. Bxd4 e5 12. Be3 d5 13. exd5 Rd8 14. Nxb5 axb5 15. Bxb5+ Nd7 16. 0-0-0 Bd6 17. Qf2 0-0 18. Bd3 Bc5 19. Rhe1 Bxe3+ 20. Qxe3 Rc8 21. Re2 Qd6 22. Bf5 g6 23. Qg5 Rcd8 24. Bxd7 Qxd7 25. Qf6 Bxd5 26. Rxe5 Qc6 27. Qxc6 Bxc6 28. Re3 Rxd1+ 29. Kxd1 Rd8+ 30. Ke2 Bb5+ 31. Ke1 g5 32. b3 Re8 33. Rxe8+ Bxe8 34. Kf2 Kf8 35. f4 gxf4 36. Kf3 Ke7 37. Kxf4 Ke6 38. g5 f6 39. gxf6 Kxf6 40. c3 Bg6 41. c4 Ke6 42. b4 Bd3 1/2-1/2

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "8"]
[White "Van Delft, Merijn"]
[Black "Do, Khoa"]
[Result "1-0"]
[ECO "B42"]
[PlyCount "129"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nc6 7. Nxc6 bxc6 8. Qe2 d5 9. Nc3 Bb7 10. f4 Bc5+ 11. Kh1 Ne7 12. f5 d4 13. fxe6 dxc3 14. Qh5 0-0-0 15. Qxc5 cxb2 16. Bxb2 f6 17. Bc3 Qd6 18. Qa7 Qb8 19. Qb6 Qc7 20. Qxc7+ Kxc7 21. Ba5+ Kd6 22. Bxd8 Rxd8 23. Rab1 Bc8 24. Rfd1 Ke5 25. Kg1 Bxe6 26. Bxa6 Ra8 27. Bd3 Bc8 28. a4 Rxa4 29. Ra1 Rxa1 30. Rxa1 Kd6 31. Kf2 Be6 32. Ra7 h5 33. Ke3 g5 34. Kd4 Ng6 35. Bc4 Bd7 36. Bf7 Nh4 37. g3 Nf3+ 38. Ke3 Nxh2 39. Bxh5 Nf1+ 40. Kf2 Nd2 41. Bf3 Nc4 42. Be2 Ne5 43. Ke3 Kc5 44. Ra8 Be6 45. Rf8 Bf7 46. Rh8 Kb4 47. Rh6 Bg6 48. Kd4 c5+ 49. Kd5 Kc3 50. Bh5 Bxh5 51. Rxh5 Kxc2 52. Kxc5 Kd3 53. Kd5 Ng4 54. Rh1 Ke3 55. Ra1 Kf2 56. Ra3 Kg2 57. Ke6 Kh2 58. Kf5 Kh3 59. Rb3 Nf2 60. g4+ Kh4 61. Rb4 Nd3 62. Ra4 Nf2 63. Kxf6 Nxg4+ 64. Kg6 Ne5+ 65. Kf5 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1993.??.??"]
[Round "?"]
[White "Bakker, Sven"]
[Black "Do, Khoa"]
[Result "1-0"]
[ECO "B99"]
[PlyCount "63"]
[EventDate "1993.??.??"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Nbd7 9. 0-0-0 Qc7 10. g4 h6 11. Bxf6 Nxf6 12. g5 hxg5 13. fxg5 Nd7 14. g6 Ne5 15. gxf7+ Nxf7 16. Qg3 Bg5+ 17. Kb1 Bd7 18. Bh3 Rh6 19. Rhf1 Bf6 20. Bxe6 Bc6 21. Nf5 Bxc3 22. Bxf7+ Qxf7 23. Nxh6 Qe6 24. Qxc3 Qxh6 25. Qf3 0-0-0 26. Qf4 g5 27. Qf6 Qxh2 28. Qxg5 Re8 29. Qf4 Qg2 30. Qxd6 Qxe4 31. Rf7 Qe5 32. Rc7+ 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1993.??.??"]
[Round "?"]
[White "Do, Khoa"]
[Black "Adriaanse, Adam"]
[Result "1-0"]
[ECO "B73"]
[PlyCount "75"]
[EventDate "1993.??.??"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nc6 7. Be2 Bg7 8. Nxc6 bxc6 9. 0-0 0-0 10. Be3 Qc7 11. Bf3 Rb8 12. Rb1 Be6 13. Qe2 Rb7 14. g4 Rfb8 15. f5 Bc8 16. fxg6 hxg6 17. e5 dxe5 18. g5 Ne8 19. b3 Nd6 20. Bc5 Nf5 21. Qf2 Be6 22. Rbd1 Nd4 23. Be4 Rd8 24. Bxd4 exd4 25. Ne2 Qe5 26. Qg2 Bd5 27. Rxd4 Rbd7 28. Bxd5 Rxd5 29. Rxd5 Rxd5 30. Nf4 Qe3+ 31. Kh1 Rd2 32. Qxc6 Be5 33. Qe8+ Kh7 34. Qxf7+ Bg7 35. Qxg6+ Kh8 36. Qf5 Qd4 37. Ng6+ Kh7 38. Nf8+ 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1993.??.??"]
[Round "?"]
[White "Do, Khoa"]
[Black "De Weerd, Warner"]
[Result "1-0"]
[ECO "B85"]
[PlyCount "89"]
[EventDate "1993.??.??"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 Nf6 6. Be2 e6 7. Be3 Be7 8. 0-0 0-0 9. f4 a6 10. Bf3 Qc7 11. Kh1 Rd8 12. Qe1 d5 13. exd5 Nxd5 14. Nxd5 exd5 15. Rd1 Bf6 16. c3 Nxd4 17. Bxd4 Bxd4 18. Rxd4 Be6 19. Qd2 Qa5 20. Rd1 Qxa2 21. f5 Bxf5 22. Bxd5 Qa5 23. Bxf7+ Kxf7 24. Rxd8 Rxd8 25. Qxd8 Qxd8 26. Rxd8 Be4 27. Kg1 g5 28. Kf2 h5 29. Rd4 Bc6 30. Rd6 h4 31. b4 Kg7 32. h3 Kh7 33. g3 g4 34. gxh4 gxh3 35. Kg3 Bg2 36. c4 Kg7 37. c5 Kh7 38. Rd2 Bc6 39. Kxh3 Kg6 40. Kg4 Kh6 41. Rd6+ Kg7 42. Kg5 Be8 43. h5 Ba4 44. h6+ Kh7 45. Re6 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1993.??.??"]
[Round "?"]
[White "Do, Khoa"]
[Black "Duijx, B."]
[Result "1-0"]
[ECO "C41"]
[PlyCount "59"]
[EventDate "1993.??.??"]
[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 d6 3. d4 exd4 4. Bc4 Be7 5. 0-0 Be6 6. Bxe6 fxe6 7. Nxd4 Qd7 8. Qg4 e5 9. Qxg7 Bf6 10. Qxd7+ Kxd7 11. Nf5 Nc6 12. Nc3 Nge7 13. Nxe7 Bxe7 14. Be3 h5 15. Rad1 Rag8 16. Nd5 a5 17. c4 b6 18. a3 Rg6 19. b4 axb4 20. axb4 Rhg8 21. g3 h4 22. c5 bxc5 23. bxc5 Rh8 24. cxd6 cxd6 25. Rb1 Nd8 26. Rfc1 Ke6 27. f4 Rg4 28. Rc7 Re8 29. f5+ Kf7 30. f6 1-0

[Event "Den Bosch op"]
[Site "Den Bosch"]
[Date "1993.??.??"]
[Round "5"]
[White "Do, Khoa"]
[Black "Ernst, Sipke"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "121"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Nc2 Bg5 13. Be2 f5 14. exf5 Bxf5 15. Nce3 Be6 16. Bf3 Kh8 17. 0-0 Rb8 18. a3 Ne7 19. Qe2 Bxe3 20. Nxe3 Ng6 21. Rad1 Bb3 22. Rd2 Nf4 23. Qe1 Nh3+ 24. Kh1 Rxf3 25. gxf3 Qf6 26. Qe2 Nf4 27. Ng4 Nxe2 28. Nxf6 gxf6 29. Rxd6 Nf4 30. Rg1 Bd5 31. Rg3 Ba8 32. h4 Ne2 33. Rh3 Nf4 34. Rg3 Ne2 35. Rh3 f5 36. Kh2 Rg8 37. Rd1 e4 38. fxe4 Bxe4 39. f3 Bc6 40. Re1 Nf4 41. Rg3 Rxg3 42. Kxg3 Nd3 43. Re6 f4+ 44. Kg2 Bd5 45. Rd6 Bc4 46. b3 Ne1+ 47. Kf2 Nd3+ 48. Kg1 Bxb3 49. Rxd3 Kg7 50. Rd4 Kf6 51. Rxf4+ Ke5 52. Rd4 a5 53. Kf2 b4 54. axb4 a4 55. b5 a3 56. b6 a2 57. b7 a1Q 58. b8Q+ Kf5 59. Qf8+ Kg6 60. Rg4+ Kh5 61. Qf5+ 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1993.??.??"]
[Round "2"]
[White "Do, Khoa"]
[Black "Gerrits, Bastiaan"]
[Result "0-1"]
[ECO "C44"]
[PlyCount "66"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 d6 5. 0-0 Ne5 6. Nxe5 dxe5 7. f4 exf4 8. Bxf4 Nf6 9. Bg5 Bd6 10. e5 Bxe5 11. Qe2 Qe7 12. Re1 Bd6 13. Qf2 Be6 14. Nd2 0-0-0 15. Rad1 Bxh2+ 16. Kxh2 Ng4+ 17. Kg1 Qxg5 18. Bxe6+ fxe6 19. Qg3 Qf5 20. Nf3 e5 21. Nxe5 Nxe5 22. Rxe5 Qxc2 23. Ree1 Qxb2 24. Qg4+ Kb8 25. Qe6 Qb5 26. Rb1 Qd5 27. Qa6 Rd6 28. Qd3 Qxa2 29. Qb5 Qd5 30. Qd3 a6 31. Re2 h5 32. Reb2 Rb6 33. Rxb6 cxb6 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1993.??.??"]
[Round "4"]
[White "Do, Khoa"]
[Black "Manten, Rogier"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "55"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 f5 7. 0-0 Bd6 8. Nbd2 0-0 9. Re1 c6 10. c4 Be6 11. Qb3 Qc7 12. c5 Be7 13. Nxe4 fxe4 14. Bxe4 Bf7 15. Bc2 Bf6 16. Bg5 Nd7 17. Bf5 Bh5 18. g4 Be8 19. Qd3 g6 20. Be6+ Kg7 21. Bd2 Bf7 22. g5 Bd8 23. Nh4 Qc8 24. Qh3 Bxe6 25. Rxe6 Rh8 26. Nf5+ gxf5 27. Qh6+ Kf7 28. g6+ 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1993.??.??"]
[Round "?"]
[White "Do, Khoa"]
[Black "Utema, I."]
[Result "1-0"]
[ECO "C43"]
[PlyCount "45"]
[EventDate "1993.??.??"]
[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 Nf6 3. d4 Nxe4 4. dxe5 d5 5. Bd3 Nc5 6. Nc3 c6 7. 0-0 Bg4 8. Be2 Ne6 9. Re1 Bb4 10. Nd4 Bxc3 11. bxc3 Bxe2 12. Qxe2 Qh4 13. Nf5 Qa4 14. Nd6+ Ke7 15. Qf3 Rf8 16. Nxb7 Nd7 17. c4 Qxc4 18. Ba3+ c5 19. Nd6 Nxe5 20. Nf5+ Kf6 21. Rxe5 Kxe5 22. Bb2+ d4 23. Re1+ 1-0

[Event "Den Bosch op"]
[Site "Den Bosch"]
[Date "1993.??.??"]
[Round "1"]
[White "Do, Khoa"]
[Black "Van Kessel, D."]
[Result "1-0"]
[ECO "B33"]
[PlyCount "55"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. f3 0-0 8. Bc4 Re8 9. 0-0 b6 10. Bg5 Bb7 11. Nd5 Be7 12. Nxe7+ Qxe7 13. f4 exf4 14. Rxf4 Qe5 15. Rf5 Qxe4 16. Bd3 Qg4 17. Bxf6 Qxd1+ 18. Rxd1 gxf6 19. Rxf6 Re6 20. Rf4 Ne5 21. Bf5 Re7 22. Nd4 Nc4 23. Nb5 Ne3 24. Rd3 Nxc2 25. Rg3+ Kf8 26. Bxc2 Re2 27. Nd6 Bd5 28. Be4 1-0

[Event "Den Bosch op"]
[Site "Den Bosch"]
[Date "1993.??.??"]
[Round "4"]
[White "Do, Khoa"]
[Black "Van de Pol, Martijn"]
[Result "0-1"]
[ECO "B45"]
[PlyCount "68"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bg5 Bb4 7. f4 Qa5 8. Bxf6 Bxc3+ 9. bxc3 Qxc3+ 10. Ke2 gxf6 11. Nb5 Qa5 12. Kf3 a6 13. Nd6+ Ke7 14. Nc4 Qc5 15. g3 b5 16. Ne3 Bb7 17. Bg2 Rac8 18. Rc1 Nb4 19. Kf2 Nxa2 20. Ra1 Nc3 21. Qd3 Qb4 22. e5 Ne4+ 23. Kg1 Rc3 24. exf6+ Nxf6 25. Qe2 Bxg2 26. Nxg2 Qd4+ 27. Kf1 Rxc2 28. Qxc2 Qxa1+ 29. Ne1 Qd4 30. Nd3 Ng4 31. Qd2 Rc8 32. h3 Rc2 33. Qb4+ Qxb4 34. Nxb4 Ne3+ 0-1

[Event "Den Bosch op"]
[Site "Den Bosch"]
[Date "1993.??.??"]
[Round "2"]
[White "Span, Paul"]
[Black "Do, Khoa"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "82"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 Nc6 6. cxd4 d6 7. Bc4 Nb6 8. Bb5 Bd7 9. exd6 exd6 10. 0-0 Be7 11. Nc3 0-0 12. Bf4 Rc8 13. Rc1 a6 14. Be2 Bf5 15. h3 Bf6 16. Bd3 Qd7 17. Ne4 Be7 18. a3 Na5 19. Qe2 Nd5 20. Bg3 Rfe8 21. b4 Nc6 22. Qd2 Rcd8 23. Nc3 Nxc3 24. Rxc3 Bf6 25. Bxf5 Qxf5 26. Re3 Re4 27. Qd3 d5 28. Nd2 Bxd4 29. Rf3 Qg6 30. b5 axb5 31. Qxb5 Re7 32. Nb3 Be5 33. Rd3 d4 34. Rfd1 h5 35. Kh2 h4 36. Bxe5 Rxe5 37. Qb6 Rg5 38. g3 hxg3+ 39. fxg3 Qf6 40. R1d2 Rf5 41. Kg2 Qe7 0-1

[Event "Den Bosch op"]
[Site "Den Bosch"]
[Date "1993.??.??"]
[Round "3"]
[White "Van Beek, Lucien"]
[Black "Do, Khoa"]
[Result "0-1"]
[ECO "B88"]
[PlyCount "76"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Be7 8. f4 Nc6 9. Be3 0-0 10. 0-0 Qc7 11. f5 Nxd4 12. Bxd4 b5 13. Qe2 Kh8 14. fxe6 fxe6 15. Rad1 b4 16. Na4 e5 17. Bb6 Qb7 18. Rxf6 Rxf6 19. Bd5 Qb8 20. Bxa8 Qxa8 21. Bf2 Bd8 22. Bh4 Qa7+ 23. Kh1 Rf8 24. Bxd8 Rxd8 25. Qc4 Bg4 26. Re1 a5 27. h3 Bd7 28. Qf7 Qb8 29. b3 Bc6 30. c4 Rf8 31. Qe6 Qd8 32. c5 Qh4 33. Rg1 Bxe4 34. cxd6 Bxg2+ 35. Rxg2 Rf1+ 36. Kh2 Qf4+ 37. Rg3 Rf2+ 38. Kh1 Qe4+ 0-1

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1993.??.??"]
[Round "?"]
[White "Van Vossen, Robbert"]
[Black "Do, Khoa"]
[Result "1-0"]
[ECO "D24"]
[PlyCount "69"]
[EventDate "1993.??.??"]
[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 dxc4 3. Nf3 a6 4. a4 Nf6 5. Nc3 Bf5 6. e3 e6 7. Bxc4 Nbd7 8. Qe2 Bb4 9. 0-0 Bxc3 10. bxc3 Ne4 11. Ba3 Nxc3 12. Qb2 Nxa4 13. Qxb7 Nab6 14. Qc6 Nxc4 15. Qxc4 Be4 16. Qa4 Qb8 17. Ng5 Bd3 18. d5 exd5 19. Qf4 f6 20. Ne6 c5 21. Qg4 Kf7 22. Bxc5 Ne5 23. Qxg7+ Kxe6 24. f4 Ng6 25. f5+ Bxf5 26. g4 Rg8 27. gxf5+ Ke5 28. Qh6 d4 29. exd4+ Kd5 30. Qe3 Nh4+ 31. Kh1 Qe8 32. Qb3+ Kc6 33. Qb6+ Kd7 34. Rae1 Qh5 35. Re7+ 1-0

[Event "Den Bosch op"]
[Site "Den Bosch"]
[Date "1993.??.??"]
[Round "6"]
[White "Vermulst, Marc"]
[Black "Do, Khoa"]
[Result "1/2-1/2"]
[ECO "B84"]
[PlyCount "167"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Be2 Nbd7 8. a4 Qc7 9. 0-0 b6 10. Bf3 Bb7 11. Kh1 Be7 12. Qe1 0-0 13. g4 d5 14. e5 Ne8 15. Be3 Rc8 16. Nce2 Nc5 17. Qg3 Ne4 18. Bxe4 dxe4 19. f5 exf5 20. gxf5 Kh8 21. c3 Rg8 22. Nf4 Bc5 23. Nde6 Bxe3 24. Nxc7 Bxf4 25. Qxf4 Nxc7 26. Kg1 f6 27. c4 fxe5 28. Qe3 b5 29. axb5 axb5 30. Ra7 Bc6 31. b3 Ne8 32. Rd1 Nf6 33. Qg5 e3 34. Qxe3 Rcd8 35. Rxd8 Rxd8 36. Qe2 bxc4 37. bxc4 Be4 38. h3 Bd3 39. Qxe5 Bxc4 40. Ra1 Re8 41. Qc7 Bd3 42. Ra7 Rg8 43. Qa5 Be4 44. Qe5 Re8 45. Qc7 Rg8 46. Qc5 Rd8 47. Rf7 Bd5 48. Rc7 h6 49. Qe7 Rg8 50. Kf2 Bb3 51. Rb7 Bc2 52. Qe6 Nh7 53. Ke3 Ba4 54. Kd4 Bd1 55. h4 Bh5 56. Re7 Nf6 57. Kc5 Rf8 58. Kb6 Rb8+ 59. Ka7 Rf8 60. Qe5 Bf3 61. Ka6 Bc6 62. Qg3 Ra8+ 63. Ra7 Rg8 64. Kb6 Bd5 65. Qg6 Rb8+ 66. Kc5 Rc8+ 67. Kd4 Rg8 68. Rxg7 Rxg7 69. Qxf6 Bf7 70. Ke5 Kh7 71. Qd8 Rg8 72. Qc7 Rf8 73. Qd6 Rg8 74. Kf6 Bh5 75. Qd7+ Kh8 76. Qc7 Be8 77. Qc3 Kh7 78. Qd4 Bh5 79. Ke7 Re8+ 80. Kd7 Rf8 81. Qe5 Bg4 82. Ke7 Rxf5 83. Qe4 h5 84. Qd3 1/2-1/2

[Event "NED-ch U18"]
[Site "Nijmegen"]
[Date "1992.??.??"]
[Round "?"]
[White "Den Dekker, Wijnand"]
[Black "Do, Khoa"]
[Result "1-0"]
[ECO "B24"]
[PlyCount "75"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. Bg2 Nc6 5. d3 e6 6. f4 Be7 7. Be3 a6 8. h3 Qc7 9. a4 Bd7 10. Nge2 Nb4 11. 0-0 Bc6 12. Nb1 Bd7 13. c3 Nc6 14. Na3 Rd8 15. Nc2 d5 16. e5 Ng8 17. d4 b6 18. b3 Rc8 19. Rc1 Na5 20. Na3 c4 21. b4 Nb3 22. Rb1 Bxa4 23. f5 Bd7 24. fxe6 Bxe6 25. Nf4 Qd7 26. Qf3 Nh6 27. Nxd5 Bxd5 28. Qxd5 Qxd5 29. Bxd5 Nf5 30. Rxf5 b5 31. Bxf7+ Kd8 32. e6 Rc6 33. d5 Rd6 34. Rd1 g6 35. Rff1 g5 36. Bc5 Nxc5 37. bxc5 Rd7 38. d6 1-0

[Event "NED-ch U18"]
[Site "Nijmegen"]
[Date "1992.??.??"]
[Round "?"]
[White "Do, Khoa"]
[Black "Ernst, Sipke"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "48"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[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. d4 exd4 4. Bc4 Bc5 5. c3 Nf6 6. e5 d5 7. exf6 dxc4 8. Qe2+ Be6 9. fxg7 Rg8 10. Ng5 Rxg7 11. Nxe6 fxe6 12. Qh5+ Kd7 13. Qxc5 Rxg2 14. cxd4 Qh4 15. Be3 Rxf2 16. Bxf2 Qe4+ 17. Kd2 Qxh1 18. Qxc4 Qxh2 19. Qe2 Rg8 20. Nc3 Rg2 21. Ne4 Nxd4 22. Qe3 Nf5 23. Nc5+ Kd8 24. Qd3+ Nd6 1/2-1/2

[Event "NED-ch U18"]
[Site "Nijmegen"]
[Date "1992.??.??"]
[Round "?"]
[White "Do, Khoa"]
[Black "Mellegers, Joost P"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "55"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[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. d4 exd4 4. Bc4 Bc5 5. c3 dxc3 6. Nxc3 d6 7. 0-0 Be6 8. Bxe6 fxe6 9. Qb3 Qc8 10. Be3 Bxe3 11. fxe3 Nf6 12. Ng5 Ke7 13. Rac1 h6 14. Nxe6 Qxe6 15. Nd5+ Nxd5 16. exd5 Qg6 17. Qxb7 Rhc8 18. Rxc6 Kd7 19. Rfc1 Qg5 20. Rxc7+ Rxc7 21. Rxc7+ Kd8 22. Rc3 Ke8 23. Qxa8+ Kf7 24. Rc7+ Kg6 25. Qe8+ Kh7 26. Qe4+ Kg8 27. Rc8+ Kf7 28. Qe8+ 1-0

[Event "Hengelo op-C"]
[Site "Hengelo"]
[Date "1992.??.??"]
[Round "6"]
[White "Do, Khoa"]
[Black "Stork, Rostislav"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "37"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 d6 6. Bc4 Nf6 7. e5 Nd7 8. e6 fxe6 9. Bxe6 Nde5 10. Ng5 h6 11. Bxc8 Qxc8 12. Nge4 Nb4 13. 0-0 g6 14. f4 Ng4 15. Qd4 Nc2 16. Qa4+ Qc6 17. Qxc2 d5 18. Qd1 Nxh2 19. Nf2 1-0

[Event "NED-ch U18"]
[Site "Nijmegen"]
[Date "1992.??.??"]
[Round "?"]
[White "Do, Khoa"]
[Black "Van Altena, T."]
[Result "1-0"]
[ECO "B73"]
[PlyCount "61"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. 0-0 Bd7 9. Kh1 0-0 10. f4 Qb6 11. Nxc6 Qxc6 12. Bf3 Qc8 13. Qd2 Bg4 14. e5 Bxf3 15. exf6 Bxg2+ 16. Qxg2 Bxf6 17. Nd5 Qd7 18. Nxf6+ exf6 19. f5 Kg7 20. Bd4 Qc6 21. Qxc6 bxc6 22. fxg6 fxg6 23. Rae1 c5 24. Re7+ Kh6 25. Bxf6 Rfe8 26. Rf3 g5 27. Bg7+ Kh5 28. Rd7 Re2 29. Rxd6 g4 30. Rf5+ Kh4 31. Rh6# 1-0

[Event "Hengelo op-C"]
[Site "Hengelo"]
[Date "1992.??.??"]
[Round "4"]
[White "Do, Khoa"]
[Black "Van Beek, Lucien"]
[Result "0-1"]
[ECO "B40"]
[PlyCount "78"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. d4 e6 3. Nf3 cxd4 4. c3 d5 5. exd5 Qxd5 6. Qxd4 Qxd4 7. Nxd4 a6 8. Bd3 Bd6 9. Nd2 Ne7 10. 0-0 0-0 11. Ne4 Bc7 12. Bg5 Nbc6 13. Rad1 h6 14. Nxc6 Nxc6 15. Bh4 f5 16. Nc5 g5 17. Bxg5 hxg5 18. Bc4 Re8 19. Rfe1 Ne5 20. Bb3 b6 21. Nd3 Nxd3 22. Rxd3 Kg7 23. Rd4 Ra7 24. h4 gxh4 25. Rxh4 Bd8 26. Rd4 Rd7 27. Rxd7+ Bxd7 28. Rd1 Bc8 29. Rd3 Bc7 30. Ba4 Rd8 31. Rxd8 Bxd8 32. Bc6 Kf6 33. b4 Ke5 34. a4 Kd6 35. Bf3 Bf6 36. c4 Bc3 37. b5 a5 38. Kf1 Kc5 39. Be2 Kb4 0-1

[Event "NED-ch U18"]
[Site "Nijmegen"]
[Date "1992.??.??"]
[Round "?"]
[White "Do, Khoa"]
[Black "Van den Doel, Erik"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "96"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf5 d5 7. exd5 Bxf5 8. dxc6 bxc6 9. Be2 Bd6 10. Be3 0-0 11. 0-0 Qe7 12. Bc4 Ng4 13. h3 Nxe3 14. fxe3 Bg6 15. e4 Bb4 16. Qe2 Rad8 17. a3 Bxc3 18. bxc3 Kh8 19. Kh1 Qc5 20. a4 f5 21. exf5 Bxf5 22. Rac1 e4 23. Rf4 Bg6 24. Rcf1 Rxf4 25. Rxf4 e3 26. Bd3 Bxd3 27. cxd3 Re8 28. c4 Qe5 29. g3 Qc5 30. Kg2 h6 31. h4 Qa5 32. Re4 Rxe4 33. dxe4 Qxa4 34. Kf3 Qa3 35. Qxe3 Qxe3+ 36. Kxe3 Kg8 37. Kd4 Kf7 38. Kc5 a5 39. h5 Ke6 40. Kd4 Kf6 41. g4 Ke6 42. Kc5 Ke5 43. Kxc6 a4 44. Kd7 a3 45. Ke7 a2 46. Kf7 a1Q 47. Kxg7 Qc1 48. c5 Qg5+ 0-1

[Event "Hengelo op-C"]
[Site "Hengelo"]
[Date "1992.??.??"]
[Round "8"]
[White "Do, Khoa"]
[Black "Van der Heijden, Ton"]
[Result "1/2-1/2"]
[ECO "B86"]
[PlyCount "41"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 Be7 7. 0-0 0-0 8. Be3 Qc7 9. Bb3 a6 10. a4 Nc6 11. Nxc6 bxc6 12. a5 c5 13. f3 Bb7 14. Qe1 d5 15. exd5 exd5 16. Bf4 Bd6 17. Bxd6 Qxd6 18. Rd1 c4 19. Ba4 Bc6 20. Bxc6 Qxc6 21. Qf2 1/2-1/2

[Event "NED-ch U18"]
[Site "Nijmegen"]
[Date "1992.??.??"]
[Round "?"]
[White "Gommers, Ralf"]
[Black "Do, Khoa"]
[Result "0-1"]
[ECO "B80"]
[PlyCount "56"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 b5 7. Be3 Bb7 8. Qd2 e6 9. Be2 Be7 10. 0-0 Nbd7 11. Kh1 Rc8 12. Rac1 0-0 13. Rfd1 Qc7 14. Nb1 Nb6 15. b3 d5 16. e5 Nfd7 17. f4 Nc5 18. c3 Kh8 19. Qc2 Ne4 20. Bd3 Bc5 21. Bxe4 dxe4 22. Qe2 Nd5 23. a3 Rfd8 24. g3 h6 25. Nc2 Nxe3 26. Nxe3 Rd3 27. Nc2 e3+ 28. Kg1 Rd2 0-1

[Event "NED-ch U18"]
[Site "Nijmegen"]
[Date "1992.??.??"]
[Round "?"]
[White "Manten, Rogier"]
[Black "Do, Khoa"]
[Result "1/2-1/2"]
[ECO "A31"]
[PlyCount "67"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c4 Nf6 4. Nc3 Nc6 5. d4 cxd4 6. Nxd4 e5 7. Nb3 Be7 8. Bg5 Be6 9. Bxf6 gxf6 10. Nd5 Rc8 11. Qd2 f5 12. exf5 Bxf5 13. Nxe7 Qxe7 14. Rd1 Rd8 15. Bd3 e4 16. Be2 Rg8 17. g3 Ne5 18. Qe3 Rg6 19. Nd4 Bg4 20. Qxe4 Bxe2 21. Kxe2 Rg4 22. f4 Nxc4 23. Qxe7+ Kxe7 24. b3 Nb6 25. Kf3 Rg6 26. Rhe1+ Kf8 27. Rc1 Nd5 28. a3 h5 29. Nb5 a6 30. Nc3 Nxc3 31. Rxc3 d5 32. Rc7 b5 33. Ree7 Rf6 34. Red7 1/2-1/2

[Event "NED-ch U18"]
[Site "Nijmegen"]
[Date "1992.??.??"]
[Round "?"]
[White "Snuverink, Jochem"]
[Black "Do, Khoa"]
[Result "0-1"]
[ECO "B80"]
[PlyCount "58"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 b5 7. a3 Bb7 8. f3 e6 9. Nb3 Be7 10. Qd2 Nbd7 11. Qf2 0-0 12. g3 Rc8 13. Bg2 Ne5 14. Nd2 d5 15. Rd1 Qc7 16. 0-0 Neg4 17. fxg4 Nxg4 18. Bf4 Nxf2 19. Bxc7 Nxd1 20. exd5 Bc5+ 21. Kh1 Nxc3 22. d6 Bxg2+ 23. Kxg2 Nd5 24. Ne4 Ne3+ 25. Kh1 Nxf1 26. Nxc5 Ne3 27. Nd7 Rxc7 28. Nxf8 Rxc2 29. d7 Rc1# 0-1

[Event "NED-ch U18"]
[Site "Nijmegen"]
[Date "1992.??.??"]
[Round "?"]
[White "Van Beek, Lucien"]
[Black "Do, Khoa"]
[Result "1/2-1/2"]
[ECO "B53"]
[PlyCount "45"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. c4 Nc6 6. Qd2 Nf6 7. Nc3 e6 8. b3 Be7 9. Bb2 b6 10. Rd1 Bb7 11. Bd3 Qc7 12. 0-0 0-0 13. Bb1 Rad8 14. Qc2 Nb4 15. Qe2 h6 16. Rd2 Nc6 17. Rfd1 Rfe8 18. Rc1 Ne5 19. Na4 Nfg4 20. Nxe5 Nxe5 21. f4 Ng6 22. Qf2 Bc6 23. Qxb6 1/2-1/2

[Event "Hengelo op-C"]
[Site "Hengelo"]
[Date "1992.??.??"]
[Round "7"]
[White "Willemze, Jeroen"]
[Black "Do, Khoa"]
[Result "1/2-1/2"]
[ECO "B26"]
[PlyCount "47"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. Bg2 g6 5. d3 Bg7 6. h3 Nc6 7. Be3 0-0 8. Qd2 Ne8 9. f4 e6 10. Nf3 f5 11. 0-0 Bd7 12. Rae1 b6 13. Nd1 Nc7 14. c3 d5 15. e5 Qe8 16. d4 cxd4 17. cxd4 Rc8 18. Nc3 Na5 19. b3 Nb5 20. Rc1 Nxc3 21. Rxc3 Rxc3 22. Qxc3 Qe7 23. Rc1 Nc6 24. Bf1 1/2-1/2

