| ECO D30 in 1985 play it! piket jeroen defeats black's van oortmerssen in 67 moves | 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Nc3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 Re8 11. Qa4 Bd7 12. Rfd1 h6 13. Be3 Nb4 14. Qb3 a5 15. Nxd5 Nfxd5 16. Bxd5 Nxd5 17. Qxd5 Bf6 18. Qxb7 Rb8 19. Qa7 Qe7 20. Rd2 a4 21. Rad1 Rec8 22. Bf4 Ra8 23. Qb7 Qe8 24. Qf3 Ra6 25. e4 Rc4 26. Qd3 Qc8 27. e5 Be7 28. Nc6 Qxc6 29. Qxd7 Qc5 30. Rd5 Qa7 31. Qe8+ Kh7 32. Rd7 Rc7 33. e6 Rc2 34. Rxa7 |
| ECO D30 in 2001 play it! piket jeroen defeats black's collas didier in 81 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 a6 6. Ne5 c5 7. Na3 cxd4 8. Naxc4 Ra7 9. a4 b6 10. O-O Bb7 11. Nf3 Bc5 12. Bg5 O-O 13. Rc1 a5 14. Qb3 Nbd7 15. Rfd1 h6 16. Bf4 Qe7 17. Be5 Nxe5 18. Nfxe5 Bxg2 19. Kxg2 Nd5 20. Nf3 Qf6 21. Qd3 Rd8 22. Qe4 Nb4 23. Nce5 Rd5 24. Rc4 h5 25. h3 g6 26. g4 hxg4 27. hxg4 Ra8 28. g5 Qf5 29. Qh4 Bf8 30. Rh1 Bg7 31. Ng4 Kf8 32. Rc7 Qf4 33. Rb7 Rf5 34. Nh6 Qxh4 35. Rxh4 Bxh6 36. gxh6 d3 37. e4 Rc5 38. Rf4 f6 39. h7 Rh5 40. Rxf6+ Ke8 41. Rxg6 |
| ECO D02 in 1991 play it! piket jeroen defeats black's zagema wieb in 80 moves | 1. d4 d5 2. Nf3 e6 3. c4 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. dxc5 Bxc5 9. Qc2 Bb6 10. Nc3 O-O 11. Bg5 Be6 12. Na4 h6 13. Nxb6 axb6 14. Bf4 Ra5 15. Rfd1 d4 16. b4 Rd5 17. Qb2 g5 18. Bc1 Ne4 19. a4 Qf6 20. Rf1 Nc3 21. Ra3 b5 22. axb5 Nxb5 23. Ra1 Re8 24. Nd2 Nc3 25. Ne4 Qe5 26. f4 Qg7 27. fxg5 Nxe4 28. Bxe4 hxg5 29. b5 Ne5 30. Ra4 Rd7 31. Qd2 g4 32. Kh1 Nc4 33. Qf4 Nd6 34. Bd3 Bd5+ 35. Kg1 Ne4 36. Qf5 Rd6 37. Rf4 Ng5 38. Rxg4 Rg6 39. Rxg5 Be6 40. Rxg6 Qxg6 |
| ECO D02 in 1995 play it! piket jeroen defeats black's cifuentes parada in 113 moves | 1. d4 d5 2. Nf3 c5 3. c4 e6 4. cxd5 exd5 5. g3 Nf6 6. Bg2 Nc6 7. O-O Be7 8. Nc3 O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Rc1 Bf8 13. Nb3 Be6 14. Bd4 Ne4 15. e3 Rc8 16. Qd3 Nb4 17. Qe2 Nxc3 18. bxc3 Nc6 19. Rfd1 Ba3 20. Rc2 Qe7 21. Rcd2 Nxd4 22. Nxd4 Rxc3 23. Nb5 Rc1 24. Rxc1 Bxc1 25. Rc2 Ba3 26. Rc7 Qb4 27. h4 a6 28. Nd4 Bb2 29. Nxe6 fxe6 30. e4 d4 31. e5 d3 32. Qxd3 Qe1+ 33. Kh2 Bxe5 34. Rc2 Rf8 35. Qd7 Bf6 36. Qxb7 Qe5 37. f4 Qb5 38. Qe4 e5 39. a4 Qb8 40. Qg6 exf4 41. Bd5+ Kh8 42. Be4 Kg8 43. Re2 fxg3+ 44. Kg2 Be5 45. Bd5+ Kh8 46. Be4 Kg8 47. Qh7+ Kf7 48. Bf3 Kf6 49. h5 Qe8 50. Qe4 g5 51. hxg6 h5 52. g7 Rg8 53. Qh4+ Ke6 54. Qg5 Kd6 55. Qh6+ Qe6 56. Rd2+ Ke7 57. Qxe6+ |
| ECO D61 in 1986 play it! piket jeroen defeats black's rochas e in 67 moves | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c5 8. O-O-O Qa5 9. Kb1 cxd4 10. exd4 Bb4 11. Bd2 dxc4 12. Bxc4 Nb6 13. Bb3 Nbd5 14. Rhe1 Bd7 15. Ne5 Rac8 16. Nxd7 Nxd7 17. Nxd5 exd5 18. Bxb4 Qxb4 19. Qf5 Nf6 20. g4 a5 21. Bxd5 Rcd8 22. a3 Qa4 23. Ba2 Rxd4 24. Rxd4 Qxd4 25. g5 Qd2 26. Rc1 Ne8 27. h4 g6 28. Qf3 Qd7 29. h5 gxh5 30. Qxh5 Ng7 31. Qh4 Re8 32. Ka1 Qd2 33. Rh1 Re2 34. Qxh7+ |
| ECO D20 in 2000 play it! piket jeroen defeats black's van den doel eri in 81 moves | 1. d4 d5 2. c4 dxc4 3. e4 Nf6 4. e5 Nd5 5. Bxc4 Nb6 6. Bb3 Nc6 7. Ne2 Bf5 8. Nbc3 e6 9. a3 Qd7 10. Be3 O-O-O 11. Rc1 Kb8 12. O-O h5 13. Bc2 Bxc2 14. Qxc2 f6 15. Rfd1 Ne7 16. Nf4 Ned5 17. Ncxd5 Nxd5 18. Nxd5 exd5 19. e6 Qc8 20. Bf4 Bd6 21. e7 Bxf4 22. exd8=Q Rxd8 23. Rb1 Qg4 24. Re1 Bd6 25. Qd3 h4 26. Re3 a6 27. Rbe1 Ka7 28. Rf3 Qd7 29. Qg6 Rh8 30. h3 c6 31. b4 Bb8 32. Kf1 Qc7 33. Rfe3 Qf4 34. Qxg7 Rd8 35. Qg4 Qh2 36. Re6 f5 37. Qg5 Rf8 38. Ke2 Qc7 39. Qxh4 Rg8 40. Qe7 Qf4 41. g3 |
| ECO D12 in 2001 play it! piket jeroen defeats black's dautov rustem in 103 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 a6 5. Bd3 Bg4 6. Nbd2 Nbd7 7. Qc2 e6 8. b3 Bd6 9. Bb2 Bh5 10. O-O Qb8 11. h3 O-O 12. Rae1 Re8 13. c5 Bc7 14. b4 Bxf3 15. Nxf3 e5 16. e4 dxe4 17. Bxe4 exd4 18. Bxd4 Nxe4 19. Rxe4 Rxe4 20. Qxe4 Nf8 21. Re1 Qd8 22. Bc3 Qd7 23. Nd4 Rd8 24. Nf5 f6 25. Qc4+ Kh8 26. Ne7 Ng6 27. Qf7 Ne5 28. Bxe5 Bxe5 29. g4 Qd2 30. Re3 Qd7 31. Kg2 Qe8 32. Qxe8+ Rxe8 33. Nxc6 bxc6 34. f4 Rb8 35. fxe5 Rxb4 36. e6 Rb8 37. Rd3 Kg8 38. Rd6 Kf8 39. Rxc6 Rb2+ 40. Kf3 Rxa2 41. Rc7 Ra3+ 42. Ke4 Rxh3 43. Rf7+ Ke8 44. Rxg7 Rc3 45. Kd5 Rd3+ 46. Kc4 Re3 47. c6 Rxe6 48. c7 Rc6+ 49. Kd5 Rc1 50. Kd6 Rd1+ 51. Kc6 Rc1+ 52. Kb7 |
| ECO D10 in 1989 play it! piket jeroen defeats black's brenninkmeijer j in 93 moves | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Be2 dxc4 7. a4 Bb4 8. O-O O-O 9. Bxc4 Qe7 10. Ne5 c5 11. Qe2 Rd8 12. Nf3 h6 13. Rd1 cxd4 14. exd4 Nb6 15. Bb3 Nbd5 16. Rd3 b6 17. Ne5 Bb7 18. Rg3 Kf8 19. Bd2 Rac8 20. Re1 Nc7 21. Qd3 Bd6 22. Qe3 Nce8 23. a5 Bxe5 24. dxe5 Nd5 25. Nxd5 Bxd5 26. Ba4 Qc5 27. axb6 axb6 28. Qxc5+ bxc5 29. Ba5 Nc7 30. Rc3 Bb7 31. Rxc5 Na6 32. Rxc8 Rxc8 33. b4 Rc4 34. Rb1 Be4 35. Bb5 Rd4 36. Rc1 Bb7 37. f3 f6 38. exf6 gxf6 39. Bf1 Kf7 40. b5 Nb8 41. Rc7+ Rd7 42. Rc4 f5 43. Bc3 Bd5 44. Rc8 Rb7 45. Rh8 Kg6 46. Bd2 Nd7 47. Rxh6+ |
| ECO D30 in 2001 play it! piket jeroen defeats black's rainfray arnaud in 85 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Bb4 5. Bg5 Nbd7 6. cxd5 exd5 7. Rc1 c6 8. a3 Be7 9. e3 O-O 10. Bd3 Re8 11. h3 Ne4 12. Bxe4 dxe4 13. Bxe7 Qxe7 14. Nd2 f5 15. Qb3+ Kh8 16. Nc4 Nf6 17. Qb4 Be6 18. Ne5 Rac8 19. Qxe7 Rxe7 20. b4 b6 21. O-O c5 22. Nb5 cxd4 23. Nxd4 g6 24. b5 Rxc1 25. Rxc1 Bd5 26. Rc8+ Kg7 27. Nec6 Bxc6 28. Nxc6 Rd7 29. Ra8 Nd5 30. Nxa7 g5 31. Nc6 f4 32. Re8 Nc3 33. Nd4 Ra7 34. Re6 Rxa3 35. Rxb6 fxe3 36. Nf5+ Kf7 37. Nxe3 Ra1+ 38. Kh2 Ra2 39. Rb7+ Kg6 40. b6 Rb2 41. Rc7 Nb5 42. Nc4 Rb4 43. Rc6+ |
| ECO D02 in 1998 play it! piket jeroen defeats black's kraut rainer in 51 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Nc3 Nc6 5. e4 Bg4 6. Be3 e6 7. Bxc4 Bb4 8. Qc2 O-O 9. Rd1 Qe7 10. Be2 Rfd8 11. O-O Ba5 12. Na4 Bb6 13. Nxb6 axb6 14. a3 Bh5 15. h3 Rd7 16. Rd2 Bg6 17. Bd3 b5 18. Ne5 Nxe5 19. dxe5 Rxd3 20. Qxd3 Nxe4 21. Qd7 Qf8 22. Rdd1 Qb8 23. Qxb5 c6 24. Qb6 h6 25. f4 Ng3 26. Rfe1 |
| ECO D15 in 1996 play it! piket jeroen defeats black's dreev alexey in 72 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 b6 7. Be2 Bb7 8. O-O Bd6 9. Rd1 O-O 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 Re8 13. c5 Bf8 14. Qc2 Qc7 15. Be3 bxc5 16. dxc5 Nf6 17. Rd4 Nd5 18. Bd2 g6 19. Ra4 e5 20. Rc1 Bg7 21. Bc4 Bc8 22. Qb3 Rb8 23. Qa3 e4 24. Rxa7 Bxb2 25. Qa4 Bxc1 26. Rxc7 exf3 27. Qxc6 Nxc7 28. Qxc7 Rb7 29. Bxf7+ Kg7 30. Bc3+ Kf8 31. Qd6+ Ree7 32. Bd5 Rd7 33. Qf6+ Rf7 34. Qh8+ Ke7 35. Qe5+ Kf8 36. c6 Ra7 |
| ECO D31 in 2007 play it! piket jeroen defeats black's toth bela in 91 moves | 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bf4 O-O 6. e3 Nbd7 7. Qc2 c6 8. h3 Re8 9. a3 Nf8 10. Bd3 dxc4 11. Bxc4 Nd5 12. Bh2 Nxc3 13. Qxc3 Bd6 14. Bxd6 Qxd6 15. Rc1 Rd8 16. O-O Bd7 17. Ba2 Be8 18. Rfd1 Rac8 19. b4 Qe7 20. e4 Ng6 21. g3 h6 22. h4 Qc7 23. Nd2 e5 24. Nf3 exd4 25. Rxd4 Rxd4 26. Qxd4 b6 27. h5 Nf8 28. e5 Bd7 29. Qd6 Be6 30. Bxe6 Nxe6 31. Nh4 Qxd6 32. exd6 Nd4 33. Rc4 c5 34. bxc5 bxc5 35. Kg2 Rd8 36. Rxc5 Rxd6 37. Rc8+ Kh7 38. Rc7 Ra6 39. Rxf7 Rxa3 40. Ng6 Ra5 41. g4 Ne6 42. Re7 Nd8 43. Re8 Nf7 44. Rf8 Rg5 45. Rxf7 Rxg4+ 46. Kh3 |
| ECO D10 in 1999 play it! piket jeroen defeats black's cifuentes parada in 81 moves | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bd6 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 h6 11. Bc2 e5 12. h3 Re8 13. Re1 exd4 14. Rxe8+ Qxe8 15. Qxd4 Bc5 16. Qc3 a5 17. a3 Nf8 18. Bf4 Be6 19. Be5 f6 20. Bd4 Bd6 21. Bb6 Qf7 22. Rd1 Be7 23. Re1 Re8 24. Nd2 Nd7 25. Bxa5 b6 26. Qg3 f5 27. Bc3 Bf8 28. a4 Nf6 29. b3 Bc5 30. Qf3 Qd7 31. Rd1 Rf8 32. Nf1 Qc8 33. Ne3 Nh7 34. Qf4 Be7 35. h4 g5 36. hxg5 hxg5 37. Qh2 Rf7 38. Qh6 Bf6 39. Rd6 b5 40. Bxf5 Bxf5 41. Bxf6 |
| ECO D10 in 1995 play it! piket jeroen defeats black's illescas cordoba in 103 moves | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. exf6 Bb7 12. g3 c5 13. d5 Qb6 14. Bg2 O-O-O 15. O-O b4 16. Rb1 Bh6 17. Bxh6 Rxh6 18. b3 cxb3 19. Na4 Qb5 20. axb3 exd5 21. Rc1 Kb8 22. Re1 Rxf6 23. Re7 Qc6 24. h4 Qd6 25. Rxd7 Rxd7 26. Nxc5 Rc7 27. Nxb7 Rxc1 28. Qxc1 Kxb7 29. Qg5 Kc7 30. Bxd5 Qb6 31. Qe5+ Kd8 32. Bf3 a5 33. Kg2 Rd6 34. h5 a4 35. bxa4 b3 36. Qg5+ Ke8 37. a5 Qd4 38. Qb5+ Kf8 39. Qxb3 Kg7 40. Qb5 Kh6 41. g4 Qf6 42. Be2 Rd2 43. a6 Qe7 44. Qb6+ Kg7 45. Bf3 Rd7 46. Qb2+ Kh7 47. Qb5 Rd2 48. Qf5+ Kh8 49. Be4 f6 50. Qc8+ Kg7 51. h6+ Kf7 52. Qc4+ |
| ECO D10 in 1999 play it! piket jeroen defeats black's kramnik vladimir in 67 moves | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. Bd3 O-O 8. O-O dxc4 9. Bxc4 a6 10. Rd1 b5 11. Be2 Qc7 12. e4 e5 13. g3 Re8 14. a3 Bb7 15. dxe5 Nxe5 16. Bg5 Nxf3+ 17. Bxf3 Be5 18. Bxf6 gxf6 19. Bg4 Rad8 20. Rac1 Bc8 21. Bxc8 Qxc8 22. Rxd8 Rxd8 23. Nd5 Qe6 24. Ne3 c5 25. Nf5 Kh8 26. Rd1 Rxd1+ 27. Qxd1 Qe8 28. Qd2 c4 29. Qh6 Qg8 30. f4 Bxb2 31. e5 Qg6 32. Qf8+ Qg8 33. Qe7 Qg6 34. Qd8+ |
| ECO D02 in 1988 play it! piket jeroen defeats black's kupreichik vikto in 57 moves | 1. d4 d5 2. Nf3 e6 3. c4 dxc4 4. Nc3 c6 5. a4 Bb4 6. e3 b5 7. Bd2 Nf6 8. axb5 Bxc3 9. Bxc3 cxb5 10. b3 O-O 11. bxc4 bxc4 12. Bxc4 Qc7 13. Qb3 a5 14. O-O Bb7 15. Rfc1 Ng4 16. d5 a4 17. Rxa4 Nd7 18. Rxa8 Bxa8 19. Bb2 Rb8 20. Qc3 Ndf6 21. h3 Nxf2 22. dxe6 Nxh3+ 23. Kf1 Qg3 24. exf7+ Kh8 25. Qe1 Qd6 26. Be5 Qf8 27. Bxb8 Qxb8 28. Be6 Bb7 29. Rc8+ |
| ECO D15 in 1996 play it! piket jeroen defeats black's dreev alexey in 83 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. a3 Bd6 9. e4 dxe4 10. Nxe4 Qe7 11. c5 Bc7 12. Bc4 b6 13. b4 a5 14. O-O O-O 15. Qe2 Bb7 16. Rab1 Ra7 17. Rfe1 axb4 18. axb4 Rfa8 19. g3 Ra3 20. Rb3 Ra2 21. Rb2 R2a3 22. Ra2 Rxa2 23. Bxa2 Nf6 24. Nxf6+ Qxf6 25. Bc4 Ra3 26. Ne5 bxc5 27. bxc5 Bxe5 28. dxe5 Qe7 29. Rd1 Rc3 30. Rd6 Bc8 31. Qe4 Bd7 32. Bd3 g6 33. Qb4 Rc1+ 34. Kg2 Be8 35. Qa3 Rd1 36. Qa8 Kg7 37. Qb8 Rc1 38. Rd8 Kf8 39. Be4 Rxc5 40. Rc8 Qd7 41. Qd6+ Qe7 42. Bxc6 |
| ECO D30 in 1995 play it! piket jeroen defeats black's konings leon in 99 moves | 1. d4 d5 2. c4 e6 3. Nf3 Be7 4. Nc3 Nf6 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. cxd5 exd5 9. Qc2 c6 10. Bd3 Re8 11. O-O Nf8 12. Rce1 Ne4 13. Bxe7 Qxe7 14. Bxe4 dxe4 15. Nd2 f5 16. f3 exf3 17. Nxf3 Ng6 18. e4 f4 19. e5 Be6 20. Ne4 Rf8 21. a3 Rad8 22. Nd6 Bd5 23. b4 Rd7 24. Re2 Qd8 25. Ref2 Qe7 26. Qd2 Qd8 27. Qc2 Qe7 28. Qd2 Qe6 29. Qc1 Qg4 30. Qc3 h6 31. a4 Qe6 32. Qc5 Kh7 33. b5 axb5 34. axb5 Ra8 35. b6 Kg8 36. h3 Ra4 37. Qc2 Rb4 38. Qc5 Ra4 39. Qc2 Bb3 40. Qc3 Ra6 41. Ra1 Rxa1+ 42. Qxa1 Kh7 43. Ne4 Qg8 44. Nc5 Re7 45. Qb1 Bf7 46. Nh4 Qe8 47. Nf5 Rxe5 48. dxe5 Qxe5 49. Nxb7 f3 50. Nbd6 |
| ECO D24 in 2000 play it! piket jeroen defeats black's tkachiev vladisl in 87 moves | 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. e4 b5 6. e5 Nd5 7. a4 e6 8. axb5 Nb6 9. Be3 Bb7 10. bxa6 Rxa6 11. Rc1 Nc6 12. Nd2 Nb4 13. Nxc4 Bxg2 14. Bxg2 Nxc4 15. O-O Nxe3 16. fxe3 Be7 17. Ne4 O-O 18. Qh5 Nd5 19. Rf3 Nxe3 20. Rxe3 Qxd4 21. Qe2 Ra2 22. Rxc7 Bd8 23. Rc4 Qxe5 24. Rb3 Bc7 25. Ng3 Rd8 26. Qxe5 Bxe5 27. Rd3 Rb8 28. b4 Ra1+ 29. Nf1 h5 30. Bc6 g5 31. h3 Bc7 32. b5 Rd8 33. Rxd8+ Bxd8 34. Kg2 Bb6 35. Be4 Ra5 36. Bd3 Kg7 37. Rc6 Ra2+ 38. Bc2 Bd4 39. Ng3 Rb2 40. Nxh5+ Kh6 41. Ng3 Rxb5 42. Nf5+ Kh5 43. Nxd4 Rb4 44. Rd6 |
| ECO D27 in 2001 play it! piket jeroen defeats black's shirov alexei d in 77 moves | 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. dxc5 Bxc5 8. Qxd8+ Kxd8 9. Nbd2 Nc6 10. Be2 Ke7 11. a3 a5 12. b3 b6 13. Bb2 Rd8 14. Rfd1 Bb7 15. Ne1 Rd7 16. Nd3 Rad8 17. Nxc5 bxc5 18. Nc4 Ba6 19. Rxd7+ Rxd7 20. Ne5 Nxe5 21. Bxa6 Nd3 22. Bc3 Ne4 23. Bxa5 Ndxf2 24. Bb5 Rb7 25. a4 f5 26. h3 Ra7 27. Bb6 Rb7 28. a5 Kd6 29. Rf1 Nc3 30. Ba6 Rxb6 31. axb6 Nfe4 32. Bc4 Kc6 33. Bxe6 g6 34. Bg8 Nf6 35. Bc4 Nfe4 36. Ra1 Kxb6 37. Ra6+ Kb7 38. Re6 Nd1 39. Bd5+ |
