| ECO A40 in 2000 play it! piket jeroen defeats black's plaskett jim in 39 moves | 1. d4 e6 2. c4 b6 3. a3 Bb7 4. Nc3 f5 5. d5 Nf6 6. g3 g6 7. Bg2 Bg7 8. Nh3 O-O 9. O-O Na6 10. b4 Ne4 11. Nxe4 fxe4 12. Rb1 exd5 13. cxd5 Qe7 14. Ng5 Kh8 15. Nxe4 Rae8 16. Bb2 Rf5 17. d6 Qf8 18. Nf6 Bxg2 19. Nxe8 Bxb2 20. Kxg2 |
| ECO A40 in 1984 play it! piket jeroen defeats black's van baarle john in 69 moves | 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Bd6 7. Ng3 c5 8. dxc5 Bxc5 9. b4 Bb6 10. c5 Bc7 11. Bb2 Nc6 12. Bd3 e5 13. O-O e4 14. Be2 Be6 15. Nb5 Bb8 16. Nd4 Nd7 17. Rc1 Nxd4 18. Bxd4 f5 19. c6 bxc6 20. Rxc6 Qe7 21. f4 g6 22. Qb3 Rd8 23. Rfc1 h5 24. b5 Kh7 25. Nh1 Nb6 26. Nf2 Rd6 27. Nh3 Kh6 28. Ng5 Rxc6 29. Rxc6 Bd6 30. Qc3 Rg8 31. Be5 Rc8 32. Bxd6 Qxd6 33. Rxc8 d4 34. Qc7 Qd7 35. Rh8+ |
| ECO A40 in 1988 play it! piket jeroen defeats black's ivanchuk vassily in 115 moves | 1. d4 e6 2. c4 Nf6 3. Nf3 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. Bg5 Bg7 8. Nd2 h6 9. Bh4 g5 10. Bg3 Nh5 11. e3 Nxg3 12. hxg3 Nd7 13. Qc2 a6 14. Be2 Ne5 15. Nf3 b5 16. a4 b4 17. Ne4 Rb8 18. Nxe5 Bxe5 19. Nd2 b3 20. Qc1 Rb4 21. Nc4 Bg7 22. a5 O-O 23. O-O Bf5 24. Rd1 Qf6 25. Bd3 Bxd3 26. Rxd3 Rfb8 27. Rd2 R8b5 28. Qf1 Qg6 29. Rc1 Ra4 30. Qe2 Rb8 31. g4 Kf8 32. g3 Kg8 33. Kg2 Bf6 34. f3 Bd8 35. e4 Bxa5 36. Rd3 Qf6 37. e5 dxe5 38. d6 e4 39. fxe4 Qe6 40. Rd5 Bd8 41. Re5 Qd7 42. Rxc5 Rb5 43. Rf5 Qe6 44. Qd3 Rab4 45. d7 h5 46. Nd6 Rxf5 47. Nxf5 Qe5 48. Rc8 Qxb2+ 49. Kh3 hxg4+ 50. Kxg4 Qf6 51. Qd6 Rxe4+ 52. Kh5 Kh7 53. Rxd8 Re6 54. Qd4 Re5 55. Rh8+ Qxh8 56. d8=Q Qxd8 57. Qxd8 b2 58. Qf6 |
| ECO A40 in 1995 play it! piket jeroen defeats black's timman jan h in 85 moves | 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nh3 Be7 6. O-O O-O 7. Qc2 c6 8. Nd2 Qe8 9. Nf3 Ne4 10. b3 Nd7 11. Nf4 Bd6 12. Nd3 Qh5 13. Nfe5 Nxe5 14. dxe5 Be7 15. f3 Nc5 16. Ba3 b6 17. Nxc5 bxc5 18. cxd5 cxd5 19. Bxc5 Qf7 20. Rac1 a5 21. Bxe7 Qxe7 22. Qc5 Rf7 23. Qxe7 Rxe7 24. Rc5 Rb7 25. e4 fxe4 26. fxe4 d4 27. Rfc1 Bd7 28. Bf1 a4 29. Bc4 axb3 30. Bxb3 Kf7 31. R1c4 d3 32. Rd4 Ke7 33. Rxd3 Ba4 34. Bc4 Raa7 35. Ra3 Bd1 36. Rxa7 Rxa7 37. Rc6 Bg4 38. Kf2 g5 39. Ke3 h5 40. h4 gxh4 41. gxh4 Bh3 42. Kd4 Kd7 43. Bb5 |
| ECO A40 in 1987 play it! piket jeroen defeats black's kerkmeester heic in 57 moves | 1. d4 e6 2. Nf3 f5 3. Bf4 Nf6 4. e3 Be7 5. h3 c5 6. Be2 O-O 7. O-O b6 8. c4 Bb7 9. Nc3 d5 10. dxc5 bxc5 11. Qb3 Qb6 12. Nb5 Na6 13. a4 Nd7 14. Rfd1 Kh8 15. a5 Qc6 16. Rac1 Nb4 17. Nc7 Rad8 18. a6 Ba8 19. cxd5 Nxd5 20. Nd4 Nxf4 21. Nxc6 Nxe2+ 22. Kf1 Nxc1 23. Qxe6 Bxc6 24. Rxc1 Bf6 25. Qxc6 Ne5 26. Qb7 Nd3 27. Rd1 Nxb2 28. Rxd8 Rxd8 29. Nd5 |
| ECO A40 in 1987 play it! piket jeroen defeats black's wessman richard in 77 moves | 1. d4 e6 2. Nf3 f5 3. Bf4 Nf6 4. e3 b6 5. h3 Bb7 6. Be2 Be7 7. c4 O-O 8. Nc3 Ne4 9. Qb3 Bf6 10. Rd1 Kh8 11. O-O d6 12. c5 d5 13. Nb5 Rf7 14. Ne5 Bxe5 15. Bxe5 Nc6 16. cxb6 axb6 17. Bh2 Na5 18. Qc2 c6 19. Nc3 Ba6 20. Nxe4 fxe4 21. Bxa6 Rxa6 22. b3 Qe7 23. Rc1 Ra8 24. Qe2 Qb4 25. Qg4 Rf5 26. Rc2 Qe7 27. Rfc1 Raf8 28. Bg3 h5 29. Qe2 h4 30. Bf4 R8f7 31. Qa6 Qd8 32. Rxc6 Nxc6 33. Rxc6 Kh7 34. Rxb6 g5 35. Rxe6 Qf8 36. Bd6 Qg7 37. Be5 Qf8 38. Qe2 g4 39. Qxg4 |
| ECO A40 in 1993 play it! piket jeroen defeats black's hansen curt in 121 moves | 1. d4 e6 2. c4 Nf6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb7 6. Bg2 Bb4+ 7. Bd2 Be7 8. O-O O-O 9. Nc3 Na6 10. e3 c5 11. Qe2 cxd4 12. exd4 d5 13. Ne5 Nb4 14. Bg5 Rc8 15. Rac1 h6 16. Bxf6 Bxf6 17. Rfd1 Re8 18. Nb5 a6 19. Na7 Ra8 20. a3 Na2 21. Qxa2 Rxa7 22. b4 dxc4 23. Bxb7 Rxb7 24. Qxc4 Qa8 25. Qc6 Rd8 26. Qe4 b5 27. h4 Ra7 28. Qxa8 Raxa8 29. f4 Rac8 30. Nc6 Re8 31. Rc5 Kf8 32. Kf2 Be7 33. Nxe7 Kxe7 34. Rdc1 Rcd8 35. Rc7+ Rd7 36. R1c6 Ra8 37. Ke3 Kd8 38. Rxd7+ Kxd7 39. Rc5 Kd6 40. g4 g6 41. h5 Rg8 42. hxg6 fxg6 43. Ke4 Rb8 44. d5 exd5+ 45. Rxd5+ Ke7 46. Ke5 Re8 47. Rd6 Kf7+ 48. Kd5 Re3 49. Rxa6 Rg3 50. a4 bxa4 51. b5 a3 52. b6 Rb3 53. Kc6 Rc3+ 54. Kd7 Rd3+ 55. Kc8 Rc3+ 56. Kb8 Rc4 57. b7 Rxf4 58. Ka7 Rb4 59. b8=Q Rxb8 60. Kxb8 h5 61. g5 |
| ECO A40 in 1986 play it! piket jeroen defeats black's kuijf in 81 moves | 1. d4 e6 2. c4 d5 3. Nf3 c6 4. Nc3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 a5 8. Ne5 Nf6 9. axb5 Bxc3 10. Bxc3 cxb5 11. b3 Bb7 12. bxc4 b4 13. Qa4+ Nfd7 14. c5 O-O 15. Nxd7 Bc6 16. Bb5 Qxd7 17. Bxc6 Qxc6 18. Bxb4 Qxg2 19. Rf1 Nc6 20. Bc3 Nb4 21. Kd2 Rfb8 22. h4 h5 23. Qd1 g6 24. Qe2 Qe4 25. Rfc1 Nc6 26. f3 Qd5 27. e4 Qd7 28. Qe3 Rd8 29. Ra4 Qc7 30. Qh6 Qe7 31. d5 e5 32. Ke2 Qxc5 33. dxc6 Qb5+ 34. Kf2 Rd3 35. Kg3 Rxc3 36. Rxc3 Qxa4 37. Qd2 Kg7 38. c7 Qe8 39. Rd3 Qc6 40. Rd8 a4 41. Qb4 |
| ECO A40 in 1992 play it! piket jeroen defeats black's alvarino j m in 57 moves | 1. d4 e6 2. Nf3 Nf6 3. c4 Bb4+ 4. Bd2 a5 5. g3 O-O 6. Bg2 Re8 7. O-O d6 8. Bg5 d5 9. c5 a4 10. a3 Ba5 11. Qxa4 Bd7 12. Qc2 c6 13. Nc3 Bc8 14. b4 Bc7 15. e4 h6 16. Bxf6 gxf6 17. Rfe1 e5 18. exd5 exd4 19. d6 Bxd6 20. cxd6 dxc3 21. Rxe8+ Qxe8 22. Qxc3 Qd8 23. Re1 Be6 24. Nd4 Qxd6 25. Nxe6 fxe6 26. Qxf6 Nd7 27. Qg6+ Kf8 28. Rxe6 Qd1+ 29. Bf1 |
| ECO A40 in 2001 play it! piket jeroen defeats black's feygin michail in 63 moves | 1. d4 e6 2. c4 Nf6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb7 6. Bg2 Bb4+ 7. Bd2 a5 8. O-O O-O 9. Qc2 h6 10. a3 Bxd2 11. Nbxd2 c5 12. e4 cxd4 13. Nxd4 Na6 14. Rfe1 Rc8 15. Rad1 Qe7 16. Nf5 Qc5 17. Nd6 Qxd6 18. e5 Qc7 19. Bxb7 Qxb7 20. exf6 d5 21. fxg7 Rfd8 22. Qb2 d4 23. Ne4 e5 24. Nf6+ Kxg7 25. Nh5+ Kf8 26. Rxe5 Rc5 27. Rxd4 Rxd4 28. Qxd4 Rxe5 29. Qxe5 Qc6 30. Nf6 Nc7 31. h4 Ne6 32. Nd5 |
| ECO A40 in 1990 play it! piket jeroen defeats black's brenninkmeijer j in 65 moves | 1. d4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. c4 c6 7. Qc2 b6 8. Ne5 Bb7 9. Bf4 dxc4 10. Qxc4 Ba6 11. Qc2 Qxd4 12. Rd1 Qc5 13. Nc3 Nd5 14. Nxd5 cxd5 15. Qd2 Qb4 16. Qxb4 Bxb4 17. e4 d4 18. Rxd4 Bc5 19. Rd2 f6 20. Nd3 Nd7 21. e5 Rac8 22. exf6 gxf6 23. Bh6 Rfe8 24. Nxc5 Nxc5 25. Rad1 Kf7 26. b4 Na4 27. Rd7+ Re7 28. Bf3 Rxd7 29. Rxd7+ Kg6 30. Rxa7 Bb5 31. Be3 Rc3 32. h4 h5 33. g4 |
| ECO A84 in 2000 play it! piket jeroen defeats black's straeter timo in 109 moves | 1. d4 f5 2. c4 Nf6 3. Nf3 e6 4. Bf4 Be7 5. h3 O-O 6. e3 c6 7. Bd3 d5 8. O-O Bd7 9. Nbd2 Ne4 10. Qb3 Bc8 11. Bxe4 fxe4 12. Ne5 Qb6 13. c5 Qa5 14. Qd1 Nd7 15. f3 Nxe5 16. Bxe5 exf3 17. Rxf3 Rf5 18. Rxf5 exf5 19. Nf3 b6 20. cxb6 axb6 21. a3 Be6 22. Ne1 c5 23. Nd3 c4 24. Nf4 Bf7 25. Nh5 c3 26. Nxg7 cxb2 27. Rb1 Bg6 28. Rxb2 Qxa3 29. Qf3 f4 30. exf4 Qxf3 31. gxf3 Bf8 32. f5 Bxg7 33. fxg6 hxg6 34. Rxb6 Bxe5 35. dxe5 Kf7 36. Rf6+ Kg7 37. Rd6 Ra3 38. Kf2 Rd3 39. h4 d4 40. Kg3 Rd1 41. f4 Rd3+ 42. Kg4 Rd1 43. h5 Rg1+ 44. Kf3 gxh5 45. f5 h4 46. f6+ Kg6 47. Rd7 Rf1+ 48. Ke4 h3 49. Rg7+ Kh5 50. Rh7+ Kg4 51. f7 h2 52. e6 Rf4+ 53. Ke5 Rf2 54. Kxd4 Kg3 55. Ke5 |
| ECO A85 in 2001 play it! piket jeroen defeats black's rivas vila d in 65 moves | 1. d4 f5 2. c4 Nf6 3. Nc3 d6 4. Nf3 g6 5. g3 Bg7 6. Bg2 O-O 7. O-O c6 8. b3 Qe8 9. Ba3 Na6 10. e3 Rb8 11. Qe2 b5 12. Bb2 b4 13. Nb1 h6 14. a3 Qd7 15. Nbd2 Ne4 16. Nxe4 fxe4 17. Nh4 g5 18. Ng6 Rf6 19. Bxe4 bxa3 20. Bxa3 Rxb3 21. Qc2 Rb8 22. Bxc6 Qc7 23. Bd5+ e6 24. Be4 Nb4 25. Bxb4 Rxb4 26. Bd3 a5 27. Rfb1 Bb7 28. Rxb4 axb4 29. Ra7 Qb6 30. Qa4 Qd8 31. d5 exd5 32. cxd5 Bc8 33. Bf1 |
| ECO A81 in 1990 play it! piket jeroen defeats black's meulders richard in 78 moves | 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. c3 Bg7 5. Nh3 c6 6. Nd2 Na6 7. Nf4 d6 8. d5 cxd5 9. Nxd5 Nxd5 10. Bxd5 e6 11. Bg2 O-O 12. O-O Qc7 13. Nf3 Nc5 14. Bf4 e5 15. Be3 Kh8 16. Bxc5 dxc5 17. e4 Be6 18. Qc2 Rad8 19. Rad1 Bh6 20. h3 b6 21. c4 fxe4 22. Qxe4 Bg7 23. Qe2 b5 24. cxb5 Bxa2 25. Rxd8 Rxd8 26. Re1 Re8 27. Ng5 e4 28. b4 Bd5 29. bxc5 Qxc5 30. Nxe4 Qb4 31. Qd1 Bc4 32. Qb1 Qxb5 33. Nd6 Qxb1 34. Rxb1 Ba2 35. Rb7 Rd8 36. Rxa7 Rxd6 37. Rxa2 Rd1+ 38. Kh2 Bd4 39. Bf3 Kg7 |
| ECO A85 in 1999 play it! piket jeroen defeats black's onischuk alexand in 35 moves | 1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. h4 Bg7 5. h5 Nxh5 6. e4 Nf6 7. e5 Ne4 8. Nxe4 fxe4 9. Bh6 Bxh6 10. Rxh6 c5 11. d5 Qc7 12. f4 b5 13. Ne2 d6 14. e6 Na6 15. Nc3 bxc4 16. Qg4 Bb7 17. Qxg6+ Kd8 18. Rxh7 |
| ECO A85 in 1993 play it! piket jeroen defeats black's klip hans in 27 moves | 1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. h4 Bg7 5. h5 Nxh5 6. e4 e6 7. exf5 exf5 8. Rxh5 gxh5 9. Qxh5+ Kf8 10. Nd5 h6 11. Qxf5+ Kg8 12. Qe4 Kf7 13. Be2 Rf8 14. Bxh6 |
| ECO A85 in 1992 play it! piket jeroen defeats black's salov valery b in 95 moves | 1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. h4 Bg7 5. h5 Nxh5 6. e4 Nf6 7. e5 Ne4 8. Nf3 Nxc3 9. bxc3 d6 10. Bh6 Bxh6 11. Rxh6 Nd7 12. e6 Nf6 13. Ng5 c6 14. Bd3 Qa5 15. Qd2 Rg8 16. f3 Rg7 17. Kf2 b6 18. Rah1 Ba6 19. Nxh7 Ng8 20. R6h3 O-O-O 21. Ng5 Nf6 22. Rh8 Rgg8 23. Rxg8 Rxg8 24. Rh6 Qa4 25. Qe2 Qa3 26. Qc2 d5 27. Nf7 dxc4 28. Bf1 Nd5 29. Ne5 Bb5 30. Bxc4 Ba4 31. Bb3 Bxb3 32. axb3 Kc7 33. Rh7 Re8 34. Nxg6 a5 35. Ne5 f4 36. g4 fxg3+ 37. Kxg3 Rg8+ 38. Kh4 Qa1 39. Ng4 Qh1+ 40. Kg3 Qe1+ 41. Qf2 Qxc3 42. Kh2 Qc1 43. Qg3+ Kb7 44. Qf2 Qf4+ 45. Qg3 Qxd4 46. Qh4 Qd2+ 47. Kh3 Ka6 48. Qf2 |
| ECO A40 in 2001 play it! piket jeroen defeats black's bischoff klaus in 91 moves | 1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 Nd7 6. Nf3 h6 7. O-O-O e6 8. h4 Ne7 9. e5 dxe5 10. dxe5 b6 11. h5 g5 12. Nxg5 hxg5 13. Bxg5 Bb7 14. f4 Bh6 15. Bxh6 Rxh6 16. Rh3 Nd5 17. g4 Qe7 18. Bg2 O-O-O 19. Bxd5 exd5 20. Nxd5 Qe6 21. Nxc7 Qxg4 22. Rc3 Kb8 23. e6 fxe6 24. f5 Rhh8 25. Nxe6 Rc8 26. Qh2+ Ka8 27. Rxd7 Qxf5 28. Nc7+ Ka7 29. Qd2 Rxh5 30. b3 Qe5 31. Nd5 Rc5 32. Qf2 Rf5 33. Qh4 Rxc3 34. Nxc3 Rf3 35. Qe4 Qxe4 36. Nxe4 Kb8 37. Nd6 Bc6 38. Re7 b5 39. a3 Rf6 40. Nf7 Bb7 41. Ne5 Rf5 42. Kd2 Rf2+ 43. Kd3 Rh2 44. Kc3 Be4 45. Nd7+ Kc7 46. Nf6+ |
| ECO A40 in 2000 play it! piket jeroen defeats black's minasian artashe in 95 moves | 1. d4 g6 2. e4 c6 3. Nc3 d6 4. Be3 Nf6 5. Nf3 Bg7 6. Qd2 Bg4 7. h3 Bxf3 8. gxf3 d5 9. O-O-O e6 10. h4 Nh5 11. Ne2 Nd7 12. Ng3 Nxg3 13. fxg3 h5 14. Kb1 Qc7 15. Bf4 Qb6 16. c3 Rd8 17. exd5 cxd5 18. Bd3 Bf6 19. g4 Kf8 20. Bh6+ Bg7 21. Bg5 Rc8 22. Ka1 Qd6 23. Rde1 a6 24. Re2 b5 25. Rhe1 Re8 26. a3 Bf6 27. Bf4 Qb6 28. Bh6+ Bg7 29. Bg5 Qd6 30. Qc2 Bf6 31. Bxf6 Nxf6 32. g5 Ng8 33. Bxg6 fxg6 34. Qxg6 Qd7 35. Rxe6 Rxe6 36. Rxe6 Qf7 37. f4 Ne7 38. Qxf7+ Kxf7 39. Rxa6 Kg7 40. Ra7 Kf8 41. b3 Rg8 42. Ra8+ Kf7 43. Rxg8 Nxg8 44. a4 Ne7 45. a5 Nc6 46. a6 Kg6 47. Kb2 Kf5 48. c4 |
| ECO A41 in 1990 play it! piket jeroen defeats black's cifuentes parada in 53 moves | 1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. e4 e5 5. Be2 exd4 6. Nxd4 Ne7 7. h4 Nbc6 8. Be3 h5 9. Nc3 Ne5 10. Qd2 a6 11. O-O-O b5 12. cxb5 Ng4 13. Bxg4 Bxg4 14. f3 Bd7 15. b6 cxb6 16. Nde2 d5 17. Nxd5 Nxd5 18. Qxd5 Qc8+ 19. Kb1 Be6 20. Qd6 Qc4 21. b3 Qxe2 22. Qc6+ Bd7 23. Qxa8+ Ke7 24. Bg5+ f6 25. Rxd7+ Kxd7 26. Qd5+ Ke7 27. Rc1 |