| ECO B06 in 1984 play it! piket jeroen defeats white's poor istvan in 80 moves | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Nf6 5. Be2 O-O 6. O-O c6 7. Re1 Nbd7 8. Bf4 Qc7 9. Qd2 e5 10. Bh6 Re8 11. Bxg7 Kxg7 12. Rad1 b5 13. dxe5 dxe5 14. a3 Nc5 15. Qe3 Ne6 16. h3 a6 17. Bf1 Bb7 18. Rd2 Rad8 19. Red1 Rxd2 20. Rxd2 c5 21. Nd5 Bxd5 22. exd5 Nd4 23. c4 bxc4 24. Bxc4 Qd6 25. Nxd4 exd4 26. Qg3 Re1+ 27. Kh2 Qxg3+ 28. fxg3 Rc1 29. b3 Ne4 30. d6 Nxd6 31. Bxa6 Ne4 32. Rb2 Rc3 33. Bb7 f5 34. a4 d3 35. Ba6 Nxg3 36. a5 f4 37. Rb1 d2 38. Rd1 Rc1 39. Be2 Nxe2 40. Rxd2 Ng3 |
| ECO B06 in 1969 play it! piket jeroen defeats white's etmans maarten d in 60 moves | 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Be2 Nf6 5. O-O O-O 6. Nc3 c6 7. a4 Nbd7 8. h3 e5 9. Be3 Qe7 10. dxe5 dxe5 11. Rb1 Nc5 12. Nd2 Rd8 13. Qe1 Ne6 14. Nc4 Nd4 15. Bd1 b6 16. b4 Ba6 17. b5 cxb5 18. axb5 Bb7 19. Bg5 Qc5 20. Bxf6 Bxf6 21. Ne3 Bg5 22. Na4 Qc7 23. c3 Bxe4 24. Rb4 Bd3 25. cxd4 exd4 26. Bf3 dxe3 27. fxe3 Rab8 28. Rf2 Be7 29. Rd4 Rxd4 30. exd4 Bh4 |
| ECO B06 in 2007 play it! piket jeroen defeats white's van der weide ka in 80 moves | 1. e4 g6 2. d3 Bg7 3. g3 e5 4. Bg2 Ne7 5. Nf3 O-O 6. O-O d5 7. Nbd2 h6 8. c3 c5 9. exd5 Nxd5 10. Nc4 Nc6 11. Re1 Re8 12. Nfd2 Be6 13. Ne4 b6 14. a4 Qc7 15. Ned6 Red8 16. Nb5 Qd7 17. Qe2 Rab8 18. f4 a6 19. Nbd6 b5 20. axb5 axb5 21. Nxe5 Qxd6 22. Nxc6 Qxc6 23. c4 Bd4+ 24. Kh1 Re8 25. Qf1 Bh3 26. cxd5 Bxg2+ 27. Kxg2 Qxd5+ 28. Kh3 Qf5+ 29. Kg2 Rxe1 30. Qxe1 Qxd3 31. Ra7 Qc2+ 32. Kh3 Bf6 33. Qe3 c4 34. Ra6 Bg7 35. Ra7 Rd8 36. Qe7 Qf5+ 37. Kg2 Qd5+ 38. Kh3 Bf8 39. Qc7 Qf5+ 40. Kg2 Re8 |
| ECO B06 in 2001 play it! piket jeroen defeats white's maes wim in 66 moves | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 b5 6. Bd3 Nd7 7. a4 b4 8. Nd1 Rb8 9. Ne2 c5 10. c3 Ngf6 11. f3 O-O 12. O-O bxc3 13. bxc3 Qa5 14. Qa2 Nb6 15. Nb2 Be6 16. Nc4 Nxc4 17. Bxc4 cxd4 18. cxd4 d5 19. Bd2 Qd8 20. exd5 Bxd5 21. Rad1 Rc8 22. Bb3 Qd7 23. Rc1 Qe6 24. Bxd5 Nxd5 25. Rce1 Rfd8 26. Kh1 Qf5 27. Ba5 Rc2 28. Qb3 Rdc8 29. Ng3 Qd7 30. f4 e6 31. Ne4 Bxd4 32. Rd1 Bg7 33. Bb6 Rb2 |
| ECO B06 in 2001 play it! piket jeroen defeats white's van weersel arle in 42 moves | 1. e4 g6 2. g3 d5 3. c3 dxe4 4. Bg2 Nf6 5. Ne2 Bg7 6. O-O Nbd7 7. c4 Ne5 8. Nbc3 Bf5 9. Nf4 c6 10. b3 h5 11. Ba3 g5 12. Nh3 Bxh3 13. Bxh3 Nf3+ 14. Kh1 g4 15. Bg2 h4 16. Bxf3 gxf3 17. d4 Qa5 18. Qc1 hxg3 19. fxg3 Rxh2+ 20. Kxh2 Ng4+ 21. Kg1 Bxd4+ |
| ECO B06 in 2001 play it! piket jeroen defeats white's van mil johannes in 68 moves | 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Be2 Nf6 5. Nc3 O-O 6. O-O Nc6 7. d5 Nb8 8. h3 c6 9. Re1 a6 10. a4 b6 11. Bf4 Bb7 12. Qd2 Nbd7 13. Rad1 cxd5 14. exd5 Rc8 15. Nd4 Rxc3 16. bxc3 Bxd5 17. Bf3 Bxf3 18. Nxf3 Nc5 19. Bh6 Re8 20. Bxg7 Kxg7 21. a5 bxa5 22. Ne5 h5 23. Qd4 Qc8 24. Nc4 Ne6 25. Qd3 Nf4 26. Qf1 a4 27. Ne3 Qc6 28. Rd4 Ne6 29. Rb4 a5 30. Qc4 Qxc4 31. Rxc4 Nc5 32. Rd4 Rc8 33. Nc4 Ne6 34. Nb6 Rc6 |
| ECO B06 in 1985 play it! piket jeroen defeats white's howell james c in 68 moves | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 O-O 6. Bd3 Na6 7. O-O c5 8. d5 Rb8 9. Qe1 Bg4 10. Qh4 Nb4 11. Kh1 Qc8 12. a3 Nxd3 13. cxd3 b5 14. f5 b4 15. Ne2 Qa6 16. Nf4 Bxf3 17. Rxf3 Qa4 18. Rf1 c4 19. fxg6 hxg6 20. d4 c3 21. e5 dxe5 22. dxe5 Qb5 23. Rg1 Nxd5 24. Nxd5 Qxd5 25. axb4 Bxe5 26. bxc3 Bxc3 27. Rxa7 Qd4 28. Qxe7 Bxb4 29. Qd7 Bc5 30. Rd1 Qf6 31. Rc7 Rbd8 32. Qg4 Qh4 33. Qf3 Bd6 34. Bf4 Bxf4 |
| ECO B06 in 1984 play it! piket jeroen defeats white's libardo rueda in 76 moves | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Nf6 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. Be3 e5 9. dxe5 dxe5 10. h3 Qe7 11. Nd2 Nc5 12. Bc4 Rd8 13. Qe2 Ne6 14. Bxe6 Bxe6 15. a5 Nh5 16. Rfd1 Nf4 17. Bxf4 exf4 18. e5 Qc5 19. Nf3 Rxd1+ 20. Nxd1 Bd5 21. Nc3 Bxf3 22. Qxf3 Bxe5 23. Ra3 Rd8 24. Rb3 Rd7 25. a6 b5 26. Qe2 Kg7 27. Ne4 Qb6 28. c4 Qxa6 29. Ra3 Qb6 30. c5 Qd8 31. Ra1 a5 32. Rc1 a4 33. Qc2 Rd5 34. Kf1 f5 35. Nd6 Bxd6 36. cxd6 Rxd6 37. Qc5 Qf6 38. g3 Qd4 |
| ECO B06 in 2001 play it! piket jeroen defeats white's fluvia poyatos j in 70 moves | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 a6 5. a4 Nf6 6. Be2 O-O 7. O-O Nc6 8. h3 e5 9. Be3 exd4 10. Nxd4 Re8 11. f3 d5 12. Nxc6 bxc6 13. Bg5 Qd6 14. exd5 Nxd5 15. Ne4 Qe5 16. c4 Nf4 17. Re1 h6 18. Bh4 Bf5 19. Bf1 Qxb2 20. Rb1 Qd4+ 21. Bf2 Qxd1 22. Rbxd1 a5 23. Nc5 Bc3 24. Re3 Bb4 25. Nd7 Bxd7 26. Rxd7 Ne6 27. Rd1 Red8 28. Red3 Rxd3 29. Rxd3 Bc5 30. Rd7 Rc8 31. Be2 Kf8 32. Kf1 Bd6 33. c5 Ke8 34. Rxd6 cxd6 35. cxd6 Kd7 |
| ECO B03 in 2000 play it! piket jeroen defeats white's timman jan hein in 66 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Bg4 10. Be2 Bxf3 11. gxf3 Qh4+ 12. Bf2 Qh3 13. c5 Nd5 14. Nxd5 exd5 15. f4 Qf5 16. O-O Qxf4 17. Qb3 O-O-O 18. Be3 Qe4 19. Rad1 f6 20. Rf4 Qg6+ 21. Rg4 Qf7 22. Bb5 Qe6 23. Rg3 fxe5 24. Bf1 Kb8 25. Bh3 Qe8 26. Bg2 e4 27. Bf1 Qe6 28. Ba6 Na5 29. Qa4 Qxa6 30. Rf1 Nc4 31. Qb3 Nxe3 32. Qxe3 Be7 33. Rf7 Bf6 |
| ECO D20 in 1992 play it! piket jeroen defeats white's kouatly bachar in 90 moves | 1. d4 d5 2. c4 dxc4 3. e4 Nc6 4. Nf3 Bg4 5. Be3 e6 6. Bxc4 Bxf3 7. gxf3 Qf6 8. d5 exd5 9. exd5 O-O-O 10. Nd2 Ne5 11. Bb3 Bb4 12. f4 Bxd2+ 13. Kxd2 Ng6 14. Qg4+ Kb8 15. Kc2 N8e7 16. Rad1 Rhe8 17. Kb1 Qf5+ 18. Qxf5 Nxf5 19. Bc1 Ngh4 20. Rd3 Re2 21. Rf1 Rde8 22. Bd1 Re1 23. Rxe1 Rxe1 24. Kc2 Rh1 25. Rh3 g6 26. Be3 h5 27. Kd2 a6 28. Ba4 Rxh2 29. Rxh2 Nf3+ 30. Ke2 Nxh2 31. Bc5 Ng4 32. Bd7 Nf6 33. Bxf5 gxf5 34. d6 c6 35. Bd4 Nd5 36. Kf3 Kc8 37. Kg3 Kd7 38. Ba7 Kxd6 39. Bb8+ Ke6 40. Kh4 Nb4 41. Kxh5 Nxa2 42. Ba7 Nb4 43. Kh4 Nd3 44. Bd4 Nxf4 45. Kg5 Nd3 |
| ECO D15 in 1996 play it! piket jeroen defeats white's sokolov ivan in 86 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 O-O 8. O-O dxc4 9. Bxc4 e5 10. Bb3 Qc7 11. h3 b6 12. Ng5 Ba6 13. Re1 Rae8 14. Bd2 h6 15. Nge4 Re7 16. Rac1 exd4 17. exd4 Rfe8 18. Nxd6 Qxd6 19. Red1 Qxd4 20. Bxh6 Qh4 21. Be3 Ne5 22. Rd4 Qh5 23. Rcd1 Bc8 24. Rf4 Ng6 25. Rxf6 gxf6 26. Rd6 Bf5 27. Qd2 Bxh3 28. gxh3 Qxh3 29. Rxc6 Nf4 30. Bd5 Kh8 31. Rc8 Nxd5 32. Nxd5 Qg4+ 33. Kf1 Qxc8 34. Qd4 Qh3+ 35. Ke2 Rxe3+ 36. fxe3 Qg2+ 37. Kd3 Qg6+ 38. Kc3 Kg7 39. Kb3 Re4 40. Qd2 Qg5 41. a3 Re5 42. Nf4 Qg3 43. Ka2 Qxe3 |
| ECO D20 in 1993 play it! piket jeroen defeats white's azmayparashvili in 128 moves | 1. d4 d5 2. c4 dxc4 3. e4 Nc6 4. Nf3 Bg4 5. d5 Ne5 6. Bf4 Ng6 7. Be3 Nf6 8. Nc3 e5 9. Bxc4 a6 10. Be2 Bd6 11. Nd2 Bxe2 12. Qxe2 O-O 13. O-O Qd7 14. f3 Rfc8 15. Rfd1 Ne8 16. Nb3 h6 17. Rac1 Kh7 18. Rc2 Rcb8 19. Rdc1 b5 20. Na5 b4 21. Nb1 f5 22. Nd2 Rb5 23. Nac4 fxe4 24. Nxe4 Rxd5 25. Rd2 Be7 26. Rcd1 Rxd2 27. Qxd2 Qxd2 28. Rxd2 Nf6 29. Nxf6+ Bxf6 30. Rd7 Nf4 31. Kf2 Ne6 32. Rd5 Rb8 33. Ra5 b3 34. a3 Nf4 35. Rxa6 Nd3+ 36. Ke2 e4 37. Rxf6 gxf6 38. fxe4 Ne5 39. Nxe5 fxe5 40. Kd3 Rd8+ 41. Kc3 Rd1 42. a4 Kg6 43. Bf2 Kf6 44. Kxb3 Ke6 45. g4 Rd2 46. Bg3 Kd6 47. a5 Rd3+ 48. Kc2 Rd4 49. a6 Ra4 50. Bf2 Rxa6 51. Be3 Ra4 52. Kd3 Rb4 53. Bc1 Rb3+ 54. Kc4 Rh3 55. b4 Rxh2 56. Be3 Rh4 57. Kd3 Kc6 58. Bd2 Rxg4 59. Bxh6 Kb5 60. Bf8 Rg3+ 61. Ke2 Kc4 62. Be7 c6 63. Bc5 Rb3 64. Ba7 Rxb4 |
| ECO D21 in 1991 play it! piket jeroen defeats white's cramling pia in 124 moves | 1. d4 d5 2. c4 dxc4 3. Nf3 c6 4. Nc3 b5 5. a4 b4 6. Nb1 Nf6 7. e3 Ba6 8. Nbd2 c3 9. bxc3 Bxf1 10. Nxf1 bxc3 11. Ng3 e6 12. a5 Nbd7 13. O-O Bb4 14. Qa4 Rb8 15. Ba3 Qxa5 16. Qxa5 Bxa5 17. Bd6 Rb5 18. e4 Nb6 19. Ne5 Bb4 20. Bxb4 Rxb4 21. Rfc1 Rxd4 22. Rxc3 Nxe4 23. Nxe4 Rxe4 24. Nxc6 O-O 25. g3 Nd5 26. Rca3 h5 27. Rxa7 h4 28. Kg2 g5 29. Ne7+ Nxe7 30. Rxe7 Kg7 31. Raa7 Kg6 32. Rec7 g4 33. gxh4 Rf4 34. Rc5 Rd8 35. Kg3 Rf3+ 36. Kxg4 Rxf2 37. Ra4 f5+ 38. Kg3 Rdd2 39. Rc6 Kf6 40. Raa6 Rg2+ 41. Kf3 Rdf2+ 42. Ke3 Re2+ 43. Kf3 Rxh2 44. Rc4 Ref2+ 45. Kg3 Rhg2+ 46. Kh3 Rg1 47. Raa4 Rh1+ 48. Kg3 Rfh2 49. Rf4 Rh3+ 50. Kg2 R1h2+ 51. Kg1 Rb2 52. Rf2 Rb8 53. Kg2 Rbb3 54. Re2 Rbg3+ 55. Kf1 Rg8 56. Ke1 Rh1+ 57. Kd2 Rh8 58. Ra6 Rd8+ 59. Kc2 Re8 60. Ra4 Rc8+ 61. Kd2 Rhc1 62. Rb4 R1c2+ |
| ECO D02 in 1991 play it! piket jeroen defeats white's van wely loek in 104 moves | 1. d4 d5 2. Nf3 c6 3. Bf4 Bf5 4. e3 Nf6 5. c4 e6 6. Nc3 Nbd7 7. h3 Qb6 8. Qb3 Qxb3 9. axb3 Bb4 10. Nd2 O-O 11. g4 Bg6 12. Bg2 Bd3 13. Bf1 Bxf1 14. Kxf1 c5 15. Bd6 Rfc8 16. g5 Ne8 17. Be7 a5 18. cxd5 cxd4 19. dxe6 dxc3 20. Bxb4 cxb2 21. Rxa5 Rxa5 22. exd7 Rc1+ 23. Ke2 Ra8 24. Rd1 Nc7 25. Ba3 Rxd1 26. Kxd1 Rd8 27. Bxb2 Rxd7 28. h4 Nd5 29. Ke2 Rc7 30. h5 Rc2 31. Bd4 f6 32. f4 fxg5 33. fxg5 Ra2 34. h6 gxh6 35. gxh6 Kf7 36. Kd3 Kg6 37. Bg7 Ne7 38. Nc4 Nf5 39. Ne5+ Kh5 40. Nf7 Rg2 41. Bf8 Rg8 42. Bc5 Kg6 43. e4 Nxh6 44. Nd6 Rd8 45. e5 Nf7 46. Ke4 Nxd6+ 47. exd6 h5 48. Kd5 Kf7 49. Bf2 Rg8 50. Bh4 Rg2 51. b4 Ke8 52. Ke6 Re2+ |
| ECO D15 in 1994 play it! piket jeroen defeats white's van wely loek by checkmate in 68 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. g3 Bb7 12. Bg2 Qb6 13. exf6 O-O-O 14. O-O c5 15. d5 b4 16. Na4 Qb5 17. a3 exd5 18. axb4 cxb4 19. Re1 d4 20. Qxd4 Bxg2 21. Kxg2 Qxg5 22. Qxc4+ Kb8 23. Red1 Rc8 24. Qa6 Qf5 25. Nb6 Rxh2+ 26. Kxh2 Qxf2+ 27. Kh3 Qf5+ 28. g4 Qf3+ 29. Kh4 Qf2+ 30. Kh3 Qe3+ 31. Kh4 Qh6+ 32. Kg3 Bd6+ 33. Rxd6 Qe3+ 34. Kh4 Rh8# |
| ECO D15 in 1998 play it! piket jeroen defeats white's sadler matthew in 94 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. O-O a6 10. e4 c5 11. d5 Qc7 12. dxe6 fxe6 13. Bc2 c4 14. Nd4 Nc5 15. Be3 e5 16. Nf3 Rd8 17. Qe2 Nd3 18. Rad1 Bb4 19. Ng5 Qd6 20. Nd5 Bxd5 21. exd5 Qxd5 22. Bb6 Rd7 23. Qe3 h6 24. Nh3 Qe4 25. b3 O-O 26. bxc4 bxc4 27. Rb1 Qxe3 28. Bxe3 Nd5 29. g3 a5 30. Ba4 Rc7 31. Bc2 Rd8 32. Kh1 Rf7 33. Rbd1 Nc3 34. Ra1 Ba3 35. Rg1 Bb2 36. Raf1 Ne2 37. Rg2 Bd4 38. f3 Nxg3+ 39. hxg3 Bxe3 40. Re2 Bd4 41. a3 g5 42. Kg2 Kg7 43. Rd1 Bc3 44. Bxd3 Rxd3 45. Rc1 Rfxf3 46. Nf2 Rxg3+ 47. Kh2 Rde3 |
| ECO D02 in 1995 play it! piket jeroen defeats white's sosonko gennadi in 48 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Qa4+ Nc6 5. Nc3 e6 6. a3 a6 7. Qxc4 Bd6 8. Bg5 h6 9. Bh4 O-O 10. Rd1 g5 11. Bg3 Rb8 12. e4 b5 13. Qe2 b4 14. axb4 Bxb4 15. Qd3 Ba5 16. Rd2 Nb4 17. Qb1 Nbd5 18. Qc2 Rxb2 19. Qxb2 Nxc3 20. Ne5 Ncxe4 21. Nc6 Bxd2+ 22. Qxd2 Nxd2 23. Nxd8 Rxd8 24. Kxd2 Rxd4+ |
| ECO D11 in 1994 play it! piket jeroen defeats white's lutz christopher in 122 moves | 1. d4 d5 2. c4 c6 3. Nf3 e6 4. Bg5 Be7 5. Bxe7 Qxe7 6. Nbd2 Nf6 7. e3 O-O 8. Bd3 Nbd7 9. cxd5 exd5 10. O-O Ne4 11. Qc2 Re8 12. Rfe1 Ndf6 13. Nf1 g6 14. Rab1 a5 15. a3 Be6 16. Ne5 Nd7 17. Nxd7 Qxd7 18. f3 Nd6 19. Ng3 b6 20. Rbd1 f5 21. Nf1 Rac8 22. b4 Qa7 23. Qb2 c5 24. bxc5 bxc5 25. dxc5 Qxc5 26. Rb1 Bf7 27. a4 Nc4 28. Qc3 Qa7 29. Bxc4 Rxc4 30. Qa3 Qe7 31. Qa1 Qe5 32. Nd2 Qxa1 33. Rxa1 Rc3 34. Kf2 d4 35. exd4 Rd8 36. Re3 Rc2 37. Re2 Rxd4 38. Nf1 Bb3 39. Rxc2 Bxc2 40. Ne3 Bxa4 41. g3 Kf7 42. f4 Ke6 43. h4 h5 44. Nf1 Kd6 45. Ke3 Re4+ 46. Kf2 Kc5 47. Nd2 Rb4 48. Rc1+ Kb6 49. Nc4+ Ka6 50. Ne5 Bb5 51. Nxg6 a4 52. Ra1 Ka5 53. Ne7 Rb2+ 54. Kf3 Rb3+ 55. Kf2 Rb2+ 56. Kf3 Rb3+ 57. Kf2 Bd3 58. Nc6+ Kb5 59. Nd4+ Kb4 60. Ke3 Rc3 61. Kd2 a3 |
| ECO D30 in 1997 play it! piket jeroen defeats white's cifuentes parada in 41 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Be7 5. Nc3 O-O 6. e3 h6 7. Bf4 c5 8. dxc5 Bxc5 9. cxd5 Nxd5 10. Nxd5 exd5 11. Bd3 Bb4+ 12. Ke2 Nc6 13. Bc2 Re8 14. Qd3 g6 15. Bxh6 Bg4 16. a3 Ne5 17. Qd4 Bc5 18. Qf4 Qb6 19. b4 Qa6+ 20. Kd2 Bd6 21. Qf6 |