[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "5"]
[White "Hamelink, Desiree"]
[Black "Visser, Karl Peter"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "132"]
[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. Bc4 Be7 4. d4 exd4 5. Nxd4 Bc5 6. Nf5 Qf6 7. Qd5 d6 8. Bg5 Qg6 9. Nh4 Qe6 10. Qd3 Ne5 11. Bxe6 Nxd3+ 12. cxd3 Bxe6 13. Nf3 h6 14. Bd2 Bg4 15. Bc3 Bxf3 16. gxf3 f6 17. Rg1 g5 18. Nd2 0-0-0 19. a4 d5 20. d4 Bd6 21. h3 Ne7 22. e5 fxe5 23. dxe5 Bc5 24. Nb3 d4 25. Bd2 Rd5 26. f4 gxf4 27. Bxf4 Bb4+ 28. Kd1 Nc6 29. e6 Rf5 30. Bg3 Re8 31. Rc1 Rxe6 32. Kc2 Re2+ 33. Kb1 d3 34. Rgd1 d2 35. Nxd2 Rxd2 36. Rxd2 Bxd2 37. Rd1 Bf4 38. Re1 Bxg3 39. fxg3 h5 40. Re8+ Kd7 41. Rh8 Rg5 42. h4 Rd5 43. Rg8 Ne7 44. Rg7 Ke6 45. Ka2 a5 46. Kb1 Rc5 47. Ka2 b6 48. Kb1 Kf6 49. Rh7 Nc8 50. Rh6+ Kg7 51. Re6 Nd6 52. Re3 Nf5 53. Rd3 Rc4 54. b3 Rg4 55. Rd7+ Kh6 56. Rxc7 Rxg3 57. Rc6+ Rg6 58. Rc4 Kh7 59. Ka2 Rg4 60. Rc7+ Ng7 61. Rc6 Rb4 62. Kb2 Nf5 63. Rc7+ Kg6 64. Rc6+ Kf7 65. Rc7+ Ke6 66. Rh7 Rxh4 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "9"]
[White "Kalb, Jos"]
[Black "Visser, Karl Peter"]
[Result "1-0"]
[ECO "C54"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Qe7 7. 0-0 Ng4 8. cxd4 Bb6 9. Nc3 0-0 10. Nd5 Qe8 11. h3 Ngxe5 12. Nxe5 Nxe5 13. Nxb6 axb6 14. dxe5 Qxe5 15. Qd5 Ra5 16. Qxe5 Rxe5 17. Be3 d5 18. Bd3 c5 19. Rfe1 Rfe8 20. b3 g6 21. Bd2 Rxe1+ 22. Rxe1 Rxe1+ 23. Bxe1 Bf5 24. Bxf5 gxf5 25. Kf1 Kf8 26. b4 Ke7 27. Ke2 Kd6 28. Kd3 Kc6 29. a4 Kd6 30. a5 bxa5 31. bxc5+ Kxc5 32. Bxa5 b5 33. Bc3 b4 34. Bd4+ Kb5 35. Be3 b3 36. Kc3 b2 37. Kxb2 Kc4 38. Kc2 d4 39. Bf4 d3+ 40. Kd2 Kd4 41. Be3+ Kc4 42. f3 f6 43. g3 h5 44. h4 Kd5 45. Kxd3 Ke6 46. Kd4 Kd6 47. Bf4+ Ke6 48. Kc5 Ke7 49. Kd5 Kf7 50. Kd6 Kg7 51. Ke6 Kg6 52. Be3 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "1"]
[White "Perluka, Peter"]
[Black "Visser, Karl Peter"]
[Result "0-1"]
[ECO "A02"]
[PlyCount "28"]
[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. f4 Nc6 2. Nf3 d6 3. e3 e5 4. fxe5 Nxe5 5. Nxe5 dxe5 6. Bc4 Qh4+ 7. g3 Qxc4 8. d3 Qc6 9. 0-0 Bh3 10. Rf2 Nf6 11. e4 Bc5 12. Qe2 Bxf2+ 13. Qxf2 Ng4 14. Qe2 Qc5+ 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "7"]
[White "Van Run, Jan"]
[Black "Visser, Karl Peter"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "86"]
[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. b3 d6 2. Bb2 e5 3. c4 Be7 4. g3 Nf6 5. Bg2 c6 6. Nc3 Be6 7. Nf3 Qd7 8. Ng5 h6 9. Nxe6 fxe6 10. Ne4 d5 11. Nxf6+ Bxf6 12. d3 0-0 13. 0-0 Qf7 14. f4 exf4 15. Bxf6 Qxf6 16. Rxf4 Qe5 17. Rxf8+ Kxf8 18. Qf1+ Kg8 19. Rc1 Nd7 20. e4 Nc5 21. Kh1 Qd4 22. cxd5 Rf8 23. Qg1 Qxg1+ 24. Kxg1 Nxd3 25. dxc6 Nxc1 26. cxb7 Nd3 27. a4 Nc5 28. e5 Rb8 29. b4 Nxb7 30. b5 Nc5 31. Bf1 Nxa4 32. Bc4 Kf7 33. Kg2 Nc3 34. b6 axb6 35. Kh3 b5 36. Kh4 bxc4 37. Kh5 Rb5 38. g4 Rxe5+ 39. g5 Rxg5+ 40. Kh4 Ne2 41. h3 Rg1 42. Kh5 Nf4+ 43. Kh4 g5# 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "3"]
[White "Verwiel, Eugene"]
[Black "Visser, Karl Peter"]
[Result "0-1"]
[ECO "E81"]
[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. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nbd7 7. Nge2 c5 8. d5 Ne5 9. Ng3 a5 10. Qd2 b6 11. h4 h5 12. Be2 Ba6 13. b3 Nh7 14. 0-0-0 Qd7 15. Kc2 a4 16. Bh6 Rfb8 17. Bxg7 Kxg7 18. Nxa4 b5 19. cxb5 Bxb5 20. Bxb5 Qxb5 21. Nc3 Rxa2+ 22. Kc1 Rxd2 23. Nxb5 Rxd1+ 24. Rxd1 Rxb5 25. Kc2 Ra5 26. Kb2 Rb5 27. Kc3 Ra5 28. Rd2 Ra1 29. Re2 Rg1 30. f4 Nf3 31. Rf2 Nxh4 32. e5 Kf8 33. exd6 exd6 34. f5 Nxf5 35. Nxf5 gxf5 36. Rxf5 h4 37. b4 Rxg2 38. b5 Rg1 39. Kc2 Rg4 40. Rh5 Kg7 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "2"]
[White "Visser, Karl Peter"]
[Black "Cevaal, Christiaan"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "89"]
[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. Nf3 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. d3 0-0 6. Be3 Nc6 7. Nd5 Na5 8. Nxf6+ Bxf6 9. Nd2 Bxb2 10. Rb1 Bg7 11. Qc1 Nxc4 12. Nxc4 b6 13. Bh6 d5 14. Bxg7 Kxg7 15. Ne5 f6 16. Nf3 dxe4 17. dxe4 Bb7 18. Qf4 Qd6 19. Qe3 c5 20. 0-0 Qe6 21. Rfe1 Qxa2 22. Qc3 Qf7 23. Ng5 Qg8 24. Rbd1 Rfd8 25. f4 h6 26. Nf3 Rxd1 27. Rxd1 Rd8 28. Re1 Qf7 29. Nd2 Rd4 30. f5 g5 31. Qe3 e5 32. fxe6 Qxe6 33. c3 Rd7 34. Nf1 Qd6 35. Ng3 Qd2 36. Nf5+ Kg6 37. Qg3 Qf4 38. Qh3 Rh7 39. Rf1 Qxe4 40. Nd6 Qe5 41. Qd3+ Kh5 42. Qxh7 Qe3+ 43. Kh1 Bxg2+ 44. Kxg2 Qe2+ 45. Kg1 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "8"]
[White "Visser, Karl Peter"]
[Black "Cleven, Maria"]
[Result "0-1"]
[ECO "B80"]
[PlyCount "104"]
[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 e6 3. d4 cxd4 4. Nxd4 a6 5. Be3 Nf6 6. f3 Qc7 7. Qd2 d6 8. Nc3 Nbd7 9. 0-0-0 b5 10. a3 Bb7 11. Na2 Rc8 12. Qc3 d5 13. Qxc7 Rxc7 14. exd5 Nxd5 15. Bf2 Be7 16. g4 Bg5+ 17. Kb1 Be3 18. Bxe3 Nxe3 19. Rd3 Nxg4 20. Rg1 Nge5 21. Re3 g6 22. Nc3 Nc4 23. Bxc4 Rxc4 24. Nb3 Rf4 25. Rf1 0-0 26. Rd1 Nb6 27. Na5 Rxf3 28. Re2 Bd5 29. Nxd5 Nxd5 30. Nc6 Rc8 31. Ne5 Rf5 32. Ng4 Kg7 33. Nf2 Rc7 34. Ne4 Rd7 35. Red2 Re5 36. Nf2 Rc7 37. Nd3 Re4 38. c3 f5 39. Nf2 Re3 40. Rf1 g5 41. Nh1 f4 42. Nf2 h5 43. Kc1 g4 44. Rd3 Rxd3 45. Nxd3 f3 46. Kd2 Kf6 47. Ke1 e5 48. Nf2 Kf5 49. Rg1 e4 50. h3 Nf6 51. hxg4+ hxg4 52. Kd2 Rg7 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "4"]
[White "Visser, Karl Peter"]
[Black "Donovan, Linton"]
[Result "0-1"]
[ECO "A43"]
[PlyCount "72"]
[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. d4 e6 2. e4 c5 3. d5 exd5 4. exd5 d6 5. Nf3 Nf6 6. Bb5+ Nbd7 7. Bxd7+ Bxd7 8. c4 b5 9. b3 Be7 10. 0-0 0-0 11. Nc3 a6 12. Re1 Re8 13. Qd3 Qc8 14. Bg5 Bf5 15. Qe2 bxc4 16. bxc4 Qd7 17. h3 Rab8 18. Rac1 Nxd5 19. Bxe7 Rxe7 20. Qd1 Rxe1+ 21. Qxe1 Nxc3 22. Qxc3 h6 23. Rd1 Qc6 24. Kh2 Be6 25. a3 d5 26. cxd5 Bxd5 27. Qe5 Rd8 28. Qe7 Re8 29. Qa7 Bxf3 30. gxf3 Qxf3 31. Rf1 Qe2 32. Kg1 Re5 33. Qb8+ Kh7 34. Qb1+ g6 35. Qa1 Rg5+ 36. Kh2 Qf3 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "6"]
[White "Visser, Karl Peter"]
[Black "Werle, Jan"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "86"]
[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. f3 d5 6. Nxc6 bxc6 7. e5 Nd7 8. f4 Qb6 9. b3 e6 10. Qe2 Bc5 11. Bd2 a5 12. Nc3 Ba6 13. Na4 Qc7 14. Qg4 0-0 15. Bxa6 Rxa6 16. h4 Raa8 17. h5 f5 18. exf6 Rxf6 19. g3 Bb4 20. c3 Bd6 21. Be3 Raf8 22. 0-0-0 c5 23. Rde1 e5 24. Rhg1 e4 25. Kb2 Nb6 26. Nxb6 Qxb6 27. Rd1 Qb7 28. h6 g6 29. Rh1 a4 30. Rh5 axb3 31. axb3 Rb8 32. Kc2 Qxb3+ 33. Kd2 d4 34. Ke1 dxe3 35. Qd7 Qxc3+ 36. Kf1 e2+ 37. Kg2 Qf3+ 38. Kh2 Qxh5+ 39. Kg2 Qf3+ 40. Kh2 Qf2+ 41. Kh3 Rf7 42. Qxd6 Qf1+ 43. Kh2 exd1Q 0-1

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "3"]
[White "Azadmanesh, Moosa"]
[Black "Visser, Karl Peter"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "125"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[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. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 Nf6 7. Bg5 Qe7 8. Bd3 Qe5 9. f4 Qe6 10. Qf3 d6 11. 0-0-0 Bd7 12. Nd5 0-0-0 13. Bxf6 gxf6 14. h3 Rhg8 15. Bc4 Qe8 16. Nxf6 Qe7 17. Nxg8 Rxg8 18. g4 Qf6 19. Rhf1 Be6 20. Bd5 Nd4 21. Nxd4 Bxd4 22. c3 Bxd5 23. exd5 Bb6 24. Qe4 h6 25. Rfe1 a6 26. Qe7 Qg7 27. Re2 Kb8 28. Qd7 Qf6 29. Re7 Rf8 30. Re8+ Rxe8 31. Qxe8+ Ka7 32. Qe4 Kb8 33. Re1 Qh4 34. Rh1 Qg3 35. f5 Ka7 36. Qe2 Qf4+ 37. Kb1 Qg3 38. Ka1 f6 39. Qh2 Qd3 40. Qg2 Kb8 41. h4 Be3 42. Qf3 Qd2 43. Rd1 Qc2 44. Rb1 Bc1 45. g5 hxg5 46. h5 g4 47. Qg3 a5 48. Qg1 Bd2 49. Qg2 a4 50. a3 Qd3 51. Rd1 Qxf5 52. Qxd2 Qxh5 53. Qf4 f5 54. Rf1 Qh4 55. Qxf5 g3 56. Rg1 Qh2 57. Qf1 Qh5 58. Qg2 Ka7 59. Qxg3 Qxd5 60. Qe3+ b6 61. Qd4 Qh5 62. Qxa4+ Kb7 63. Qe4+ 1-0

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "8"]
[White "Lahaye, Jordy"]
[Black "Visser, Karl Peter"]
[Result "1/2-1/2"]
[ECO "C55"]
[PlyCount "128"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[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 Be7 4. c3 Nf6 5. 0-0 0-0 6. Re1 d6 7. h3 Be6 8. Bxe6 fxe6 9. Qb3 Qc8 10. d4 exd4 11. cxd4 Kh8 12. Nc3 d5 13. exd5 exd5 14. Nxd5 Na5 15. Qb5 Nxd5 16. Qxd5 Nc6 17. Qh5 Rf5 18. Qg4 Rd5 19. Qxc8+ Rxc8 20. a3 Bf6 21. Be3 Nxd4 22. Nxd4 Bxd4 23. Rad1 c5 24. Bxd4 Rxd4 25. Rxd4 cxd4 26. Rd1 Rd8 27. Kf1 Kg8 28. Ke2 b5 29. Rc1 Rd7 30. Rc5 a6 31. Rc6 a5 32. Rc5 Rb7 33. Kd3 b4 34. Kxd4 bxa3 35. bxa3 a4 36. f4 Rb2 37. g4 Rd2+ 38. Kc3 Rf2 39. f5 Rf3+ 40. Kb4 Rxh3 41. Kxa4 Rh4 42. Kb5 Rxg4 43. a4 h5 44. a5 Rg1 45. Kb6 h4 46. a6 Rb1+ 47. Rb5 Ra1 48. a7 h3 49. Rb2 h2 50. Rxh2 Rb1+ 51. Kc7 Rc1+ 52. Kb8 Rb1+ 53. Ka8 Kf7 54. Rc2 Kf6 55. Rc8 Kxf5 56. Rb8 Ra1 57. Kb7 Kf4 58. a8Q Rxa8 59. Rxa8 g5 60. Kc6 g4 61. Kd5 g3 62. Kd4 g2 63. Rg8 Kf3 64. Kd3 Kf2 1/2-1/2

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "5"]
[White "Van Dijk, Timon"]
[Black "Visser, Karl Peter"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "156"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[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 Be7 4. 0-0 Nf6 5. Re1 0-0 6. d4 exd4 7. Nxd4 d6 8. Nc3 Ne5 9. Be2 Ng6 10. f3 Nd7 11. Be3 Bg5 12. Bf2 Nc5 13. a3 Ne6 14. Bc4 Nef4 15. Nce2 Ne5 16. Ba2 Qf6 17. Bg3 h5 18. Nxf4 Bxf4 19. Bxf4 Qxf4 20. Qe2 h4 21. Rf1 Ng6 22. Rad1 Qg5 23. Qd2 Nf4 24. Kh1 Qf6 25. c3 g5 26. Rde1 Nh5 27. Rf2 Nf4 28. Ref1 Nh5 29. Qc2 Ng3+ 30. Kg1 Nxf1 31. Rxf1 Re8 32. Qd2 Be6 33. Bb1 Bc4 34. Rf2 Kh8 35. f4 g4 36. e5 dxe5 37. fxe5 Qg7 38. Rf6 Rxe5 39. Rh6+ Kg8 40. Nf5 Rae8 41. Nxg7 Re1+ 42. Qxe1 Rxe1+ 43. Kf2 Re2+ 44. Kg1 Re1+ 45. Kf2 Rxb1 46. Nh5 Rxb2+ 47. Kg1 h3 48. gxh3 gxh3 49. Nf4 Be6 50. Nxe6 fxe6 51. Rxe6 Rg2+ 52. Kf1 Rxh2 53. Re3 Kf7 54. Kg1 Rg2+ 55. Kf1 Ra2 56. Rxh3 Ke6 57. c4 Rc2 58. Rb3 b6 59. Rd3 Rxc4 60. Ke2 Rc5 61. Re3+ Re5 62. Rxe5+ Kxe5 63. Kd3 Kd5 64. Kc3 a5 65. Kd3 Kc5 66. Kc3 a4 67. Kd3 b5 68. Kc3 c6 69. Kd3 b4 70. axb4+ Kxb4 71. Kc2 c5 72. Kb2 a3+ 73. Kc2 c4 74. Kb1 c3 75. Ka1 Kb3 76. Kb1 a2+ 77. Ka1 Kc2 78. Kxa2 Kd2 1/2-1/2

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "7"]
[White "Visser, Karl Peter"]
[Black "De Jong, Jan Willem"]
[Result "0-1"]
[ECO "B86"]
[PlyCount "50"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. 0-0 b5 8. Bd3 Bb7 9. a3 Be7 10. Re1 Nc6 11. Nxc6 Bxc6 12. Qf3 0-0 13. Qg3 Kh8 14. Qh3 e5 15. Nd5 Bd7 16. Qg3 Nxd5 17. exd5 f5 18. b4 Bf6 19. Bb2 e4 20. Bxf6 Qxf6 21. Be2 f4 22. Qb3 Qg5 23. Kh1 Rf6 24. Rg1 Rh6 25. g3 Rxh2+ 0-1

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "6"]
[White "Visser, Karl Peter"]
[Black "Pot, Erik"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "55"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 cxd4 7. cxd4 Nh6 8. Bxh6 Qxb2 9. Bxg7 Bxg7 10. Nbd2 Nxd4 11. Qa4+ Nc6 12. 0-0 Qb4 13. Qxb4 Nxb4 14. Bb5+ Bd7 15. Bxd7+ Kxd7 16. Rfb1 Nd3 17. Rxb7+ Kc6 18. Rab1 Bxe5 19. Rxf7 Bb2 20. Ne1 Ne5 21. Re7 Kd6 22. Rb7 Bc3 23. Nef3 Bxd2 24. Nxd2 Nd7 25. Rc1 Rhc8 26. Ne4+ Ke7 27. Nc5 Ke8 28. Rxd7 1/2-1/2

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "4"]
[White "Visser, Karl Peter"]
[Black "Span, Swattee"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "69"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[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. Nc3 Nf6 4. d3 d6 5. Be2 Bg4 6. 0-0 Be7 7. Be3 0-0 8. h3 Bh5 9. Nxe5 Bxe2 10. Nxc6 Bxd1 11. Nxd8 Bxc2 12. Nxb7 Rfb8 13. Na5 Bxd3 14. Rfe1 Rxb2 15. Bd4 Rbb8 16. Nc6 Re8 17. Nd5 Nxd5 18. exd5 Bg5 19. Rxe8+ Rxe8 20. Nb4 Re4 21. Bc3 Bc4 22. Rb1 h6 23. a4 a5 24. Nc6 Bxd5 25. Nxa5 Rxa4 26. Rb8+ Kh7 27. Rc8 c5 28. Nc6 Rc4 29. Bb2 Rc2 30. Nb4 Rxb2 31. Nxd5 Rd2 32. Nb6 Bf4 33. g3 Be5 34. Nd7 Bd4 35. Nf8+ 1/2-1/2

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "9"]
[White "Visser, Karl Peter"]
[Black "Wortel, Meike"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "67"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. e5 Bf5 4. d4 e6 5. Nf3 Nd7 6. Be2 c5 7. Be3 b6 8. Bb5 a6 9. Bc6 Ra7 10. Na4 Rc7 11. Bxd7+ Qxd7 12. Nc3 Ne7 13. Ne2 Nc6 14. c3 cxd4 15. Nfxd4 Nxd4 16. Bxd4 b5 17. a3 a5 18. Bb6 Rc4 19. Bxa5 Re4 20. Bb6 Rxe5 21. 0-0 Bg6 22. a4 bxa4 23. Rxa4 Qc6 24. Bd4 Rxe2 25. Qxe2 Qxa4 26. Qe5 Qd7 27. Ra1 f6 28. Qb8+ Qd8 29. Qb5+ Kf7 30. Ra7+ Be7 31. Bc5 Re8 32. Qb7 Kf8 33. b4 Bxc5 34. Qxg7# 1-0

[Event "NED-ch U14"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "9"]
[White "Van Houwelingen, Pepi"]
[Black "Visser, Karl Peter"]
[Result "0-1"]
[ECO "C55"]
[PlyCount "46"]
[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 e5 2. Nf3 Nc6 3. Bc4 Be7 4. Nc3 Nf6 5. d3 d6 6. h3 0-0 7. 0-0 Be6 8. Bb3 d5 9. Ng5 Qd7 10. Nxe6 fxe6 11. exd5 Nxd5 12. Qg4 Rad8 13. Bd2 Rf6 14. Ne4 Rg6 15. Qd1 Nd4 16. Re1 Rf8 17. Kh2 Bh4 18. Rf1 Qf7 19. Ng3 Nf4 20. Qe1 Nxh3 21. Kxh3 Bxg3 22. fxg3 Rh6+ 23. Bxh6 Qh5# 0-1

[Event "NED-ch U14"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "7"]
[White "Visser, Karl Peter"]
[Black "Pauw, Pieter"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "48"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 d6 5. d3 h6 6. Be3 Bb6 7. Qd2 Be6 8. Bb3 Qd7 9. d4 exd4 10. Bxd4 Nxd4 11. Nxd4 Ne7 12. Bxe6 fxe6 13. 0-0-0 0-0-0 14. Rhe1 Nc6 15. Nxc6 Qxc6 16. f3 Ba5 17. Re3 Rhf8 18. Qd3 Bxc3 19. Qxc3 Qxc3 20. Rxc3 Rf7 21. Rd4 c6 22. b3 g5 23. Kb2 Kb8 24. Rb4 Rc7 1/2-1/2

[Event "NED-ch U14"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "7"]
[White "Wierenga, Anno"]
[Black "Visser, Karl Peter"]
[Result "0-1"]
[ECO "C50"]
[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 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. Nxd4 Nf6 6. Nxc6 dxc6 7. Qxd8+ Bxd8 8. Nc3 0-0 9. 0-0 Re8 10. Re1 Bf5 11. Bd3 c5 12. Bg5 Bg6 13. Rad1 c6 14. Bc4 b5 15. Bf1 Ba5 16. Bxf6 gxf6 17. Rd3 c4 18. Rde3 c5 19. g3 Re6 20. Bg2 Rae8 21. Bh3 Bxc3 22. bxc3 Rxe4 23. Bd7 Rxe3 24. Rxe3 Rxe3 25. fxe3 a6 26. Bc8 b4 27. cxb4 cxb4 28. Bxa6 c3 29. Kf2 Bxc2 30. Ke2 Be4 31. Bc4 Kf8 32. Bb3 Ke7 33. Bc4 Kf8 34. Bb3 Ke7 35. Bc4 f5 36. Kd1 f6 37. Bg8 h6 38. Bb3 Kd6 39. Ke2 Ke5 40. Bc4 Bf3+ 41. Kd3 Bg2 42. Ke2 Bf1+ 0-1

