| ECO A05 in 1998 play it! piket jeroen defeats black's shirov alexei in 43 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. h4 Bg7 6. h5 Nc6 7. g3 Bg4 8. h6 Bxc3 9. bxc3 Bxf3 10. exf3 Qd6 11. Be2 O-O-O 12. Qb3 f5 13. a4 e5 14. a5 e4 15. f4 Nf6 16. O-O Ng4 17. Ba3 Qxd2 18. a6 Na5 19. axb7+ Kb8 20. Qb5 e3 21. Bc5 exf2+ 22. Rxf2 |
| ECO A06 in 1999 play it! piket jeroen defeats black's kramnik vladimir in 101 moves | 1. Nf3 d5 2. b3 Bg4 3. Bb2 Nd7 4. e3 c6 5. c4 e6 6. Be2 Ngf6 7. O-O Bd6 8. d3 O-O 9. cxd5 exd5 10. Nbd2 Re8 11. Nd4 Bxe2 12. Qxe2 g6 13. Rad1 a5 14. Nc2 Bf8 15. Nf3 Bg7 16. Qd2 Nc5 17. Bd4 Ne6 18. Be5 c5 19. Qc3 Rc8 20. h3 b5 21. Qb2 Qe7 22. Rfe1 Nd7 23. Bxg7 Nxg7 24. a4 Rb8 25. axb5 Rxb5 26. Qa3 Ne6 27. d4 Reb8 28. dxc5 Qxc5 29. Qxc5 Ndxc5 30. Ncd4 Rb4 31. Nc6 Rxb3 32. Nxb8 Rxb8 33. Rxd5 Nb3 34. Rd7 Ra8 35. Nd4 Nexd4 36. exd4 a4 37. Ree7 a3 38. Ra7 Rd8 39. Rxa3 Nxd4 40. Raa7 Nc6 41. Red7 Rf8 42. Rac7 Nd8 43. f4 Ne6 44. Rc4 h5 45. g4 hxg4 46. hxg4 Kg7 47. Kf2 Ra8 48. Re4 Ra2+ 49. Kf3 Ra3+ 50. Re3 Ra4 51. Rxe6 |
| ECO A05 in 2000 play it! piket jeroen defeats black's svidler peter in 45 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. h4 Nf6 6. d4 Bg7 7. e4 O-O 8. Be2 c5 9. d5 e6 10. h5 Nxh5 11. g4 Nf6 12. Bg5 Qb6 13. Bxf6 Bxf6 14. Qd2 Bg7 15. O-O-O Nd7 16. g5 c4 17. Rh2 Re8 18. d6 Rd8 19. Qf4 Qa5 20. Rxh7 f5 21. gxf6 Nxf6 22. Rxg7+ Kxg7 23. e5 |
| ECO A05 in 1999 play it! piket jeroen defeats black's nikolic predrag in 107 moves | 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. g4 h6 5. Rg1 b6 6. h4 Bb7 7. g5 hxg5 8. hxg5 Nh5 9. e3 Qe7 10. Nb5 d5 11. a3 Bd6 12. cxd5 exd5 13. g6 Nc6 14. gxf7+ Qxf7 15. Nxd6+ cxd6 16. Ng5 Qe7 17. d4 O-O-O 18. Bd2 Kb8 19. Be2 Nf6 20. Qa4 Rc8 21. Rc1 Rc7 22. Rc3 Ne4 23. Nxe4 Qxe4 24. Kd1 Qb1+ 25. Rc1 Qf5 26. f3 Rh2 27. Qb5 Qh5 28. Rc3 Qf7 29. Qd3 Na5 30. Rxc7 Qxc7 31. Bxa5 bxa5 32. Qc3 Bc6 33. b3 Qb7 34. Re1 Bb5 35. a4 Ba6 36. f4 Bxe2+ 37. Rxe2 Rh1+ 38. Kc2 Qa6 39. Qd2 Qc8+ 40. Kb2 Qf5 41. Re1 Rxe1 42. Qxe1 Qd3 43. Qxa5 Qxe3 44. Qd8+ Kb7 45. Qd7+ Kb8 46. Qxd6+ Kc8 47. Qf8+ Kc7 48. Qxg7+ Kb6 49. Qf6+ Kb7 50. Qe5 Qd2+ 51. Ka3 Qc1+ 52. Kb4 Qc6 53. Qe7+ Ka6 54. Qc5 |
| ECO A05 in 1991 play it! piket jeroen defeats black's den boer ber in 43 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. h4 Bg7 6. h5 O-O 7. hxg6 hxg6 8. Qa4 e6 9. d4 Nc6 10. Bg5 Qd7 11. Rd1 Ncb4 12. Qb3 a5 13. e4 a4 14. Nxd5 Nxd5 15. Qa3 Nf6 16. Ne5 Qd6 17. Qh3 Nh5 18. g4 Bxe5 19. gxh5 Bxd4 20. hxg6 Bxf2+ 21. Ke2 Qa6+ 22. Kxf2 |
| ECO A05 in 1988 play it! piket jeroen defeats black's karolyi jr t in 27 moves | 1. Nf3 Nf6 2. d4 e6 3. c4 d5 4. Nc3 dxc4 5. e4 Bb4 6. Bg5 c5 7. e5 cxd4 8. Nxd4 Qa5 9. exf6 Qxg5 10. Qa4+ Nc6 11. Nxc6 Bxc3+ 12. bxc3 Bd7 13. Qb4 Qxf6 14. Nd4 |
| ECO A07 in 2001 play it! piket jeroen defeats black's jonkman harmen in 79 moves | 1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 4. d3 c6 5. O-O Ngf6 6. c4 e6 7. cxd5 exd5 8. Nc3 Bc5 9. Qb3 Bb6 10. Na4 O-O 11. Nxb6 axb6 12. Qc2 Bxf3 13. Bxf3 Ne5 14. Bg2 d4 15. b4 Qe7 16. Bd2 Rad8 17. a4 Nd5 18. Qb2 f5 19. Qxd4 Ng4 20. h3 Qxe2 21. Bg5 Ngf6 22. Rfe1 Qh5 23. Bxf6 Rxf6 24. Re7 f4 25. g4 Qh4 26. Rae1 f3 27. Bxf3 Rdf8 28. Bxd5+ cxd5 29. Rxb7 Qxf2+ 30. Qxf2 Rxf2 31. Ree7 Rf1+ 32. Kg2 R8f2+ 33. Kg3 Rf3+ 34. Kh4 Kf8 35. Rxg7 Rxd3 36. Rxh7 Kg8 37. Rhg7+ Kf8 38. Rgd7 Re3 39. Rxb6 Re8 40. Rxd5 |
| ECO A04 in 1992 play it! piket jeroen defeats black's gurevich mikhail in 69 moves | 1. Nf3 f5 2. g3 Nf6 3. Bg2 g6 4. O-O Bg7 5. c4 d6 6. d4 O-O 7. Nc3 Qe8 8. d5 Na6 9. Rb1 Bd7 10. b4 c6 11. dxc6 bxc6 12. b5 Nc5 13. Nd4 cxb5 14. Bxa8 Qxa8 15. Ndxb5 Rc8 16. Nd5 Nxd5 17. Qxd5+ Qxd5 18. cxd5 Rb8 19. Na3 Rxb1 20. Nxb1 Bb5 21. Be3 Na6 22. Bxa7 Bxe2 23. Re1 Bc4 24. Rxe7 Bxa2 25. Rb7 Be5 26. f4 Ba1 27. Be3 Bxd5 28. Rb6 Nc7 29. Rxd6 Bf7 30. Bd4 Bxd4+ 31. Rxd4 Ne6 32. Rb4 h6 33. Nd2 g5 34. Nf3 Kg7 35. Nd4 |
| ECO A09 in 2001 play it! piket jeroen defeats black's ernst sipke in 80 moves | 1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 a6 5. b3 Bf5 6. Bb2 e6 7. Be2 h6 8. O-O Be7 9. d3 O-O 10. Qc1 b5 11. Rd1 Bh7 12. e4 d4 13. Nb1 c5 14. cxb5 axb5 15. b4 Nc6 16. bxc5 e5 17. Nbd2 Nd7 18. Nb3 Ra4 19. Nfd2 Qa8 20. a3 Rc8 21. Bg4 Rc7 22. Qc2 Qa7 23. Rdc1 g6 24. g3 Nf8 25. h4 h5 26. Bh3 Kg7 27. f4 f6 28. Qd1 Kh6 29. Nf3 Bg8 30. Kh1 Rb7 31. f5 g5 32. g4 b4 33. axb4 Rbxb4 34. Nbd2 Ra2 35. Rxa2 Qxa2 36. hxg5+ fxg5 37. Ra1 Qxb2 38. Ra6 Kh7 39. Rxc6 Nd7 40. gxh5 Rb5 |
| ECO A05 in 2002 play it! piket jeroen defeats black's hertneck gerald in 69 moves | 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. a3 c5 5. d5 exd5 6. cxd5 g6 7. Nc3 Bg7 8. e4 O-O 9. Bd3 d6 10. h3 Ba6 11. O-O Bxd3 12. Qxd3 Nbd7 13. Bf4 Qe7 14. Bh2 Rfc8 15. Nd2 Ne8 16. Nc4 a6 17. a4 Rab8 18. Kh1 Qf8 19. Qe2 b5 20. Na5 Nc7 21. Nc6 Rb6 22. axb5 axb5 23. Qg4 f5 24. exf5 Nf6 25. Qf3 b4 26. Ne4 Nfxd5 27. Nxd6 Rxc6 28. Nxc8 Qxc8 29. Bxc7 Qxf5 30. Ra8+ Kf7 31. Bf4 Re6 32. Ra7+ Kg8 33. Rd1 Nxf4 34. Rd8+ Bf8 35. Qb7 |
| ECO A05 in 2001 play it! piket jeroen defeats black's svidler peter in 49 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qa4+ Bd7 6. Qh4 Nxc3 7. dxc3 Nc6 8. Qg3 Bf5 9. Ng5 Qd5 10. e4 Bxe4 11. Be3 O-O-O 12. Be2 Ne5 13. O-O Bd3 14. c4 Bxc4 15. Rfd1 Nd3 16. b3 Ba6 17. Bf3 Qa5 18. b4 Qxb4 19. Nxf7 Bg7 20. Rab1 Qa5 21. Nxh8 Bxh8 22. Qh3+ Kb8 23. Qxh7 Bf6 24. Qxg6 Qxa2 25. Qe4 |
| ECO A05 in 2001 play it! piket jeroen defeats black's zelcic robert in 79 moves | 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O c5 5. d3 Nc6 6. Nbd2 d4 7. a4 Bd6 8. Nc4 Bc7 9. c3 O-O 10. Bg5 h6 11. Bxf6 Qxf6 12. Nfd2 Bd7 13. cxd4 cxd4 14. Qb3 Rab8 15. Qa3 a5 16. Ne4 Qg6 17. Nc5 Bc8 18. Na6 bxa6 19. Bxc6 Rb4 20. Rfc1 e5 21. Bd5 Bd7 22. b3 Rfb8 23. Qa2 Kh8 24. Qc2 Bg4 25. Ra2 Qh5 26. Nd2 Bd8 27. Ne4 Qg6 28. Qc6 Be6 29. Bxe6 fxe6 30. Qxa6 Rxb3 31. Kg2 Kh7 32. Qd6 Qf5 33. Rc5 Bf6 34. Rxa5 R3b6 35. Nxf6+ gxf6 36. Ra7+ Kh8 37. Qd7 Qg6 38. Rc2 e4 39. a5 exd3 40. Rc8+ |
| ECO A09 in 2002 play it! piket jeroen defeats black's sokolov ivan in 68 moves | 1. Nf3 d5 2. c4 dxc4 3. e3 Be6 4. Na3 Nf6 5. Nxc4 g6 6. b3 Bg7 7. Bb2 O-O 8. Rc1 a5 9. a3 Nbd7 10. Be2 Nc5 11. d4 Nce4 12. O-O Bd5 13. Nfe5 c6 14. f3 Nd6 15. Qe1 Be6 16. Qf2 Nd5 17. Rfe1 Bh6 18. Bf1 f6 19. Nd3 Bf7 20. Rc2 a4 21. Nxd6 exd6 22. b4 f5 23. e4 fxe4 24. fxe4 Be6 25. Qg3 Nf4 26. d5 cxd5 27. Nxf4 Bxf4 28. Qd3 Bxh2+ 29. Kxh2 Qh4+ 30. Kg1 Qxe1 31. exd5 Bd7 32. Bd4 Bf5 33. Qe2 Qxe2 34. Rxe2 Bd3 |
| ECO A04 in 2000 play it! piket jeroen defeats black's van der wiel joh in 103 moves | 1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. O-O Nc6 5. d3 Nf6 6. e4 O-O 7. c3 b6 8. Re1 Bb7 9. Na3 d6 10. h3 Rc8 11. Be3 Qd7 12. Qd2 Ne5 13. Nxe5 dxe5 14. Nc4 Qe6 15. Qe2 Rfd8 16. a4 Ba6 17. b3 Ne8 18. Kh2 Rc7 19. h4 Qd7 20. Red1 Nd6 21. h5 Rc6 22. h6 Bh8 23. b4 Nxc4 24. dxc4 Rd6 25. Rxd6 Qxd6 26. a5 Bc8 27. axb6 axb6 28. bxc5 bxc5 29. Ra5 Be6 30. Bxc5 Qc7 31. Qa2 Rc8 32. Qa3 Bf6 33. Ra8 Bg5 34. Rxc8+ Bxc8 35. Qb4 Kf8 36. Bb6 Qb7 37. Qb5 Bxh6 38. Qxe5 Bg7 39. Qa5 Qc6 40. Bd4 Bxd4 41. Qd8+ Kg7 42. Qxd4+ f6 43. e5 Qc7 44. exf6+ exf6 45. c5 Kf7 46. c6 Ke7 47. Qc5+ Ke8 48. Qd5 Qg7 49. c4 Qf7 50. Qd6 Qxc4 51. c7 Be6 52. Bd5 |
| ECO A05 in 2000 play it! piket jeroen defeats black's kasparov gary in 99 moves | 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 7. d3 e5 8. O-O Be7 9. Nd2 Bd7 10. Nc4 O-O 11. Bxc6 Bxc6 12. Nxe5 Be8 13. Qb3 Bf6 14. Ng4 Bd4 15. e3 Bxc3 16. Qxc3 b6 17. f3 Bb5 18. Nf2 Qd7 19. e4 Ne6 20. Be3 a5 21. Rad1 Rad8 22. Rd2 Qc6 23. Rc1 Qb7 24. a3 Nd4 25. Kg2 Rc8 26. Rb1 Rfd8 27. Bxd4 Rxd4 28. b4 axb4 29. axb4 Qd7 30. bxc5 bxc5 31. Rbb2 h6 32. Ra2 Kh7 33. Ra5 Rd8 34. Qxc5 Bxd3 35. Rxd3 Rxd3 36. Nxd3 Qxd3 37. Ra2 Qb3 38. Qc2 Qxc2+ 39. Rxc2 h5 40. f4 g6 41. e5 Rd3 42. Kh3 Re3 43. Kh4 Kg7 44. Kg5 Re1 45. Rc7 Re2 46. Re7 Ra2 47. f5 gxf5 48. e6 h4 49. Rxf7+ Kg8 50. Kf6 |
| ECO A05 in 2002 play it! piket jeroen defeats black's ljubojevic ljubo in 79 moves | 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nb4 6. Bc4 Nd3+ 7. Ke2 Nf4+ 8. Kf1 Ne6 9. Ne5 Nc6 10. Nxc6 bxc6 11. Na4 Qd6 12. d3 Nd4 13. Be3 e5 14. Rc1 Qg6 15. Qd2 Be7 16. Qa5 Qh5 17. Bxd4 exd4 18. Nxc5 Bxc5 19. Bb3 O-O 20. Qxc5 Qh6 21. h4 Rb8 22. Rc2 Ba6 23. Rh3 Bc8 24. Rg3 Qxh4 25. Kg1 Rb6 26. Qxd4 g6 27. Rf3 Qe7 28. Qf6 Qb7 29. Rc5 a5 30. Re5 a4 31. Re7 axb3 32. Rxb7 Bxb7 33. a3 Bc8 34. d4 Be6 35. d5 Bg4 36. Rf4 h5 37. f3 Bc8 38. e5 Bf5 39. g4 hxg4 40. fxg4 |
| ECO A05 in 1999 play it! piket jeroen defeats black's avrukh boris in 61 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qa4+ Bd7 6. Qc2 Nb6 7. d4 Bg7 8. e4 Bg4 9. Ne5 Be6 10. Be3 O-O 11. Rd1 N8d7 12. Nf3 Bg4 13. Be2 Bxf3 14. gxf3 e6 15. h4 h5 16. Bg5 Qe8 17. Nb5 Rc8 18. Nxa7 Ra8 19. Nb5 Rxa2 20. Qb3 Ra5 21. Nxc7 Qb8 22. Nb5 Ra4 23. Kf1 Kh7 24. Kg2 e5 25. dxe5 Nxe5 26. Nd6 Qc7 27. Be3 Ned7 28. Nxf7 Nc5 29. Ng5+ Kh8 30. Qb5 Nbd7 31. Rxd7 |
| ECO A05 in 1990 play it! piket jeroen defeats black's den boer ber in 43 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. h4 Bg7 6. h5 O-O 7. hxg6 hxg6 8. Qa4 Nc6 9. d4 e6 10. Bg5 Qd7 11. Rd1 Ncb4 12. Qb3 a5 13. e4 a4 14. Nxd5 Nxd5 15. Qa3 Nf6 16. Ne5 Qd6 17. Qh3 Nh5 18. g4 Bxe5 19. gxh5 Bxd4 20. hxg6 Bxf2+ 21. Ke2 Qa6+ 22. Kxf2 |
| ECO A06 in 1991 play it! piket jeroen defeats black's brenninkmeijer j in 83 moves | 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O Nbd7 9. Qe2 Bg6 10. e4 O-O 11. Bd3 Bh5 12. Bf4 Re8 13. e5 Nd5 14. Nxd5 exd5 15. Bf5 Nf8 16. Qd3 Bg6 17. g4 Ne6 18. Bg3 c5 19. h4 cxd4 20. Nxd4 Nxd4 21. Qxd4 Qb6 22. Qxd5 Rad8 23. Qb5 Qxb5 24. axb5 Bxf5 25. gxf5 Rd5 26. Rxa7 Rxb5 27. Rfa1 f6 28. e6 h5 29. R1a4 Kh7 30. Kg2 g6 31. Ra8 Rxa8 32. Rxa8 gxf5 33. Rd8 Kg6 34. Bf4 Rb6 35. Rg8+ Kh7 36. Re8 Rc6 37. Rb8 Rb6 38. Bd2 Bd6 39. Rd8 Kg6 40. Bc3 Rc6 41. Rd7 Be5 42. e7 |
| ECO A09 in 1999 play it! piket jeroen defeats black's peng zhaoqin in 59 moves | 1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. b3 Nbd7 6. Qc2 Bd6 7. Bb2 O-O 8. Be2 a6 9. d4 dxc4 10. bxc4 c5 11. Rd1 Qe7 12. Ng5 cxd4 13. exd4 h6 14. h4 Re8 15. c5 Bc7 16. Kf1 Nf8 17. Nge4 Bd7 18. Nxf6+ Qxf6 19. Bf3 Rab8 20. d5 exd5 21. Nxd5 Qd8 22. Rh3 Bxh3 23. Nf6+ gxf6 24. Rxd8 Bxd8 25. gxh3 Ne6 26. Qf5 Be7 27. Be4 Nf8 28. Qg4+ Kh8 29. Qh5 Kg8 30. Bd5 |