| ECO C65 in 2001 play it! piket jeroen defeats white's wedberg tom in 84 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. Nxe5 Nxe4 6. Qe2 Nxe5 7. Qxe4 Qe7 8. Nc3 Ng6 9. Qxe7+ Kxe7 10. Ne4 Bb6 11. b3 a6 12. Bc4 d6 13. Re1 Ne5 14. Ba3 Kd7 15. Bf1 f5 16. Nc5+ Kd8 17. Nd3 Nxd3 18. Bxd3 Bd4 19. c3 Bf6 20. Bc4 Bd7 21. d4 b5 22. Bd3 Re8 23. Rxe8+ Kxe8 24. Bb2 Kf7 25. Rc1 a5 26. c4 b4 27. c5 d5 28. c6 Be6 29. Bb5 f4 30. Rd1 Bf5 31. Kf1 Rb8 32. Ba4 Bc8 33. a3 Ba6+ 34. Kg1 g5 35. axb4 axb4 36. Bc1 Be2 37. Rd2 Re8 38. h3 Ba6 39. Rd1 Re4 40. Bb2 Re2 41. Bc1 Rc2 42. h4 Be2 |
| ECO C25 in 1996 play it! piket jeroen defeats white's kuijf marinus in 82 moves | 1. e4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 d6 5. Na4 Nge7 6. Ne2 a5 7. Nxc5 dxc5 8. d3 Be6 9. Be3 b6 10. f4 f6 11. fxe5 fxe5 12. O-O Qd7 13. Nc3 O-O-O 14. Qh5 Kb7 15. Bg5 h6 16. Bxe7 Qxe7 17. Nd5 Qe8 18. Qxe8 Rhxe8 19. Ne3 a4 20. a3 b5 21. Rf2 Rf8 22. Rxf8 Rxf8 23. c3 Rd8 24. Bf1 Ne7 25. Be2 c6 26. Rf1 Kc7 27. Rf2 Kd6 28. h4 Rb8 29. Bd1 Rd8 30. Kf1 Ng8 31. Bg4 Nf6 32. Bxe6 Kxe6 33. Ke2 c4 34. dxc4 Nxe4 35. Rg2 Rd2+ 36. Kf3 Rxg2 37. Kxg2 Nd2 38. cxb5 cxb5 39. g4 Nc4 40. Nxc4 bxc4 41. Kf3 h5 |
| ECO C77 in 2001 play it! piket jeroen defeats white's almasi zoltan in 98 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 g6 7. Nbd2 Bg7 8. Nf1 O-O 9. Ng3 Bd7 10. O-O Qe7 11. Re1 Rae8 12. h3 h6 13. d4 Qd8 14. Bb3 Kh7 15. Bc2 b5 16. a4 Qb8 17. axb5 axb5 18. Be3 Qb7 19. d5 Ne7 20. Ra7 Qb8 21. Nh2 Nc8 22. Ra1 Qb7 23. b3 c5 24. dxc6 Bxc6 25. Ng4 Ng8 26. h4 h5 27. Nh2 Bh6 28. Nf3 f6 29. Nf1 Re7 30. b4 Rd7 31. N1d2 d5 32. Qb1 Nce7 33. Ra7 Qc8 34. Rxd7 Qxd7 35. Bc5 Rd8 36. exd5 Bxd5 37. Ne4 Qc6 38. Rd1 Rd7 39. Ng3 Bxf3 40. gxf3 f5 41. Rxd7 Qxd7 42. Bd3 Nd5 43. Nxf5 Nf4 44. Nxh6 Nxh6 45. Bf1 Nf5 46. Be3 Nxh4 47. Bxf4 Nxf3+ 48. Kg2 exf4 49. Qe4 Qg4+ |
| ECO C65 in 1999 play it! piket jeroen defeats white's bologan viktor in 60 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. c3 O-O 6. d4 Bb6 7. Bg5 h6 8. Bh4 d6 9. a4 a5 10. Re1 exd4 11. Bxc6 bxc6 12. Nxd4 Re8 13. Nd2 c5 14. Nc2 Bb7 15. f4 c4+ 16. Nd4 Rb8 17. Re3 Ba8 18. Qc2 Nd5 19. Bxd8 Nxe3 20. Qb1 Rbxd8 21. h3 f5 22. Qa2 Bxe4 23. Nxc4 Bd5 24. b3 Bxd4 25. cxd4 Nxg2 26. Qf2 Re6 27. Nxa5 Rde8 28. Nc4 Rg6 29. Kh2 Nxf4 30. Rg1 Rxg1 |
| ECO C68 in 2001 play it! piket jeroen defeats white's kroeze frank m in 122 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. h3 h5 7. d3 Qf6 8. Nbd2 Ne7 9. Re1 Ng6 10. d4 Nf4 11. hxg4 hxg4 12. g3 gxf3 13. Qxf3 Ne6 14. dxe5 Qh6 15. Nb3 g5 16. Be3 Bg7 17. Rad1 Bxe5 18. c3 Qh3 19. Nd4 Bxd4 20. Bxd4 Rh6 21. Qg2 Qh5 22. Be3 Ke7 23. g4 Qg6 24. Qf3 Qh7 25. Kf1 Rf6 26. Qg2 Rh8 27. Ke2 Nf4+ 28. Bxf4 Rxf4 29. f3 Qh2 30. Rg1 Rf6 31. Rd2 Qe5 32. Rh1 Qb5+ 33. Kd1 Rxh1+ 34. Qxh1 Rd6 35. Rxd6 cxd6 36. Kc1 Qe2 37. Qh6 Qe3+ 38. Kc2 b5 39. Qg7 c5 40. Qg8 c4 41. Qc8 Qd3+ 42. Kc1 Qxf3 43. Qb7+ Kf8 44. Qxa6 Qf4+ 45. Kc2 Qxe4+ 46. Kc1 Qf4+ 47. Kc2 Qxg4 48. Qxb5 Qe2+ 49. Kc1 Qe1+ 50. Kc2 Qe2+ 51. Kc1 Qe1+ 52. Kc2 Qe4+ 53. Kc1 Qf4+ 54. Kb1 g4 55. a4 g3 56. Qd5 Kg7 57. a5 Qg4 58. Qg2 Qf5+ 59. Kc1 Qf2 60. Qd5 Qe1+ 61. Kc2 Qe2+ |
| ECO C90 in 1995 play it! piket jeroen defeats white's ljubojevic ljubo in 108 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. a4 b4 10. h3 Rb8 11. d4 bxc3 12. bxc3 exd4 13. cxd4 d5 14. exd5 Nxd5 15. Ba3 Bxa3 16. Rxa3 Qd6 17. Ne5 Be6 18. Bxd5 Bxd5 19. Rg3 Rb4 20. Nxc6 Bxc6 21. Qe2 Bxa4 22. Nc3 Rxd4 23. Nxa4 Rxa4 24. Rd1 Qc6 25. Qe7 Re4 26. Qg5 g6 27. Rc1 Rc4 28. Rxc4 Qxc4 29. Qe5 Rc8 30. Rc3 Qb5 31. Rc5 Qb6 32. h4 h5 33. Kh2 a5 34. f4 a4 35. f5 Rd8 36. fxg6 fxg6 37. Rxc7 Qd6 38. Qxd6 Rxd6 39. Ra7 Rd4 40. g3 Kf8 41. Kg2 Ke8 42. Kf3 Rg4 43. Rh7 Kd8 44. Ra7 Kc8 45. Re7 Kb8 46. Re5 Kb7 47. Ra5 Kb6 48. Ra8 Kb5 49. Rb8+ Kc4 50. Ra8 Kb3 51. Ra6 a3 52. Rb6+ Rb4 53. Rxg6 a2 54. Ra6 Ra4 |
| ECO C83 in 2000 play it! piket jeroen defeats white's jens jelmer in 64 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 Nc5 11. Bc2 Bg4 12. Re1 Qd7 13. Nf1 Rd8 14. Ne3 Bh5 15. Nf5 O-O 16. b3 Rfe8 17. Nxe7+ Qxe7 18. Ba3 a5 19. Rc1 b4 20. cxb4 axb4 21. Bb2 d4 22. Bb1 Rd5 23. Qc2 d3 24. Qc4 Bxf3 25. gxf3 Red8 26. Rcd1 Nd4 27. Bxd4 Rxd4 28. Qb5 Qg5+ 29. Kh1 Qh5 30. Kg2 Ne6 31. Re3 Nf4+ 32. Kh1 Qg5 |
| ECO C80 in 1993 play it! piket jeroen defeats white's polgar judith in 114 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 Be7 7. Qe2 b5 8. Bb3 d5 9. dxe5 Na5 10. h3 O-O 11. Rd1 c6 12. c3 Nxb3 13. axb3 f6 14. exf6 Bxf6 15. Be3 Qe8 16. Nbd2 Qg6 17. Kh1 Bf5 18. Nd4 Bxd4 19. cxd4 Nxd2 20. Rxd2 Rae8 21. Rxa6 Be4 22. Qg4 Qd6 23. Ra7 Re7 24. Rxe7 Qxe7 25. Bf4 h5 26. Qg3 Bxg2+ 27. Kh2 Qe1 28. Kxg2 Qe4+ 29. f3 Qxf4 30. Qxf4 Rxf4 31. Kf2 Rh4 32. Ke3 Rxh3 33. Kf4 Rh4+ 34. Ke5 Rh1 35. Kd6 Rc1 36. Ke6 Kh7 37. f4 Kh6 38. Rg2 Rf1 39. Kf5 Kh7 40. Re2 g6+ 41. Kg5 Rg1+ 42. Kf6 Rf1 43. Kg5 Kg7 44. Rg2 b4 45. Rg3 Rf2 46. Rg1 Kf7 47. Rg3 h4 48. Rh3 Rxb2 49. Kxh4 Kf6 50. Kg4 Rg2+ 51. Kf3 Rc2 52. Rh8 Rc3+ 53. Kg4 Rxb3 54. Rb8 Rb1 55. Rb6 b3 56. Rxc6+ Ke7 57. Rc7+ Kd6 |
| ECO C55 in 1999 play it! piket jeroen defeats white's bologan viktor in 68 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 a6 6. Bb3 Ba7 7. Nbd2 O-O 8. h3 d5 9. Qe2 Be6 10. O-O h6 11. Nh2 Qd7 12. Qf3 d4 13. c4 b5 14. Re1 Ne7 15. Bc2 Ng6 16. b3 Bc5 17. a3 a5 18. cxb5 Qxb5 19. Nc4 Be7 20. Bd2 Nd7 21. Rec1 Rfb8 22. Qd1 Bg5 23. Bxg5 hxg5 24. Qh5 a4 25. bxa4 Qa6 26. Qxg5 Bxc4 27. dxc4 Nc5 28. h4 Qe6 29. Nf3 d3 30. Bd1 Nxe4 31. Qe3 Nf6 32. h5 Nf4 33. Ne1 e4 34. Nxd3 exd3 |
| ECO C45 in 2000 play it! piket jeroen defeats white's morozevich alexa in 134 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Nb6 9. Nc3 Qe6 10. Qe4 Bb4 11. Bd2 Ba6 12. b3 Bxc3 13. Bxc3 d5 14. Qh4 dxc4 15. Be2 Nd5 16. Bd4 Qf5 17. O-O Nf4 18. Bf3 O-O 19. Rfd1 cxb3 20. Re1 Rfd8 21. Be4 Rxd4 22. Bxf5 Ne2+ 23. Rxe2 Rxh4 24. Rd2 g6 25. axb3 Bb5 26. Bc2 Rb4 27. Rad1 c5 28. g3 c4 29. bxc4 Rxc4 30. Bb3 Rc3 31. Ba2 Re8 32. f4 a5 33. Rb2 Bc6 34. Bd5 Bxd5 35. Rxd5 Ra8 36. Rd7 a4 37. Rbd2 a3 38. Rd8+ Rxd8 39. Rxd8+ Kg7 40. Ra8 h5 41. Kg2 Rc2+ 42. Kf3 a2 43. h3 c5 44. g4 h4 45. f5 gxf5 46. gxf5 c4 47. Ra7 c3 48. e6 Rc1 49. e7 Re1 50. Rxa2 Rxe7 51. Kg4 Re4+ 52. Kg5 f6+ 53. Kh5 Rc4 54. Rg2+ Kf7 55. Rc2 Ke7 56. Kg6 Rc6 57. Re2+ Kd7 58. Rc2 Kc7 59. Kh5 Kd6 60. Kxh4 Ke5 61. Kg4 Ke4 62. h4 Kd3 63. Rc1 Kd2 64. Rf1 c2 65. h5 c1=Q 66. Rxc1 Rxc1 67. h6 Rh1 |
| ECO C99 in 2002 play it! piket jeroen defeats white's almasi zoltan in 58 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Rd8 14. b3 exd4 15. Bb2 Nc6 16. Nxd4 Nxd4 17. Bxd4 Be6 18. Rc1 Qa5 19. Bb1 d5 20. e5 Ne4 21. Nxe4 dxe4 22. Rxe4 Ba3 23. Rc2 Rd7 24. Rc6 g6 25. Rxe6 fxe6 26. Qg4 Re8 27. Kh2 Bf8 28. f4 Qd2 29. Bg1 Qc1 |
| ECO C55 in 1996 play it! piket jeroen defeats white's xie jun in 74 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. c3 Bg4 8. h3 Bxf3 9. Qxf3 Nd7 10. Nd2 Bg5 11. Nf1 a6 12. a3 Kh8 13. Bxg5 Qxg5 14. Ne3 Nc5 15. Rad1 Ne6 16. g3 Rae8 17. h4 Qd8 18. Kg2 Qd7 19. Qg4 Nc5 20. Qxd7 Nxd7 21. Bd5 Nb6 22. b4 g6 23. Bxc6 bxc6 24. Nc4 Na4 25. Rc1 c5 26. Re2 Rb8 27. Nb2 Nb6 28. Nc4 Nd7 29. Rb2 f5 30. Rcb1 Rf7 31. b5 axb5 32. Rxb5 Rbf8 33. R1b2 fxe4 34. dxe4 Rf3 35. Rb7 Rxc3 36. Rxc7 Nf6 37. Rbb7 Rxc4 |
| ECO C02 in 2000 play it! piket jeroen defeats white's de jager jaap in 42 moves | 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Bd3 Qb6 7. O-O a5 8. dxc5 Bxc5 9. a4 Nge7 10. Na3 f6 11. exf6 gxf6 12. Nh4 h5 13. Nb5 Ne5 14. Bf4 Nxd3 15. Qxd3 e5 16. Be3 Rc8 17. b3 e4 18. Qd2 Bxb5 19. axb5 Rg8 20. Bxc5 Qxc5 21. c4 dxc4 |
| ECO B12 in 2001 play it! piket jeroen defeats white's rabiega robert in 78 moves | 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. O-O-O e6 14. Qe2 Bd6 15. Nf5 Bf4 16. Ne3 b5 17. g3 Bxe3 18. fxe3 Ne4 19. Be1 Qd6 20. Kb1 Qd5 21. g4 a5 22. Rf1 O-O 23. Bh4 g5 24. hxg6 fxg6 25. Nd2 g5 26. Nxe4 Qxe4 27. Bg3 Rxf1 28. Rxf1 Rf8 29. Rxf8+ Kxf8 30. a3 Kf7 31. Bc7 Nf6 32. Bxa5 Nxg4 33. Bd2 h5 34. Qf1+ Kg6 35. Qf8 Nf6 36. Ba5 Qxe3 37. Qd6 Qe4 38. Qd8 h4 39. b3 h3 |
| ECO B07 in 1990 play it! piket jeroen defeats white's hector jonny in 52 moves | 1. e4 d6 2. d4 g6 3. Nc3 c6 4. Bc4 Nf6 5. Qf3 Nbd7 6. Bb3 Bg7 7. g4 O-O 8. g5 Nh5 9. Nce2 e5 10. c3 exd4 11. cxd4 c5 12. Nf4 cxd4 13. Nxh5 gxh5 14. Qxh5 Nc5 15. Ne2 Qa5+ 16. Bd2 Nd3+ 17. Kd1 Nxf2+ 18. Ke1 Nd3+ 19. Kd1 Qb5 20. Rf1 Be6 21. Nf4 Bxb3+ 22. axb3 Qxb3+ 23. Ke2 Rae8 24. Ra3 Rxe4+ 25. Kf3 Rxf4+ 26. Bxf4 Ne5+ |
| ECO B08 in 1992 play it! piket jeroen defeats white's comp mephisto be in 72 moves | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. h3 Qc7 8. Bf4 Nh5 9. Bh2 e5 10. a4 Re8 11. dxe5 dxe5 12. Bc4 Be6 13. Bxe6 Rxe6 14. Qd2 Na6 15. Rfd1 Rae8 16. Ng5 R6e7 17. Qd6 Qxd6 18. Rxd6 Nb4 19. Rc1 Nxc2 20. Nf3 Nf4 21. Kh1 Nb4 22. Kg1 h6 23. Bg3 Na6 24. b3 Nh5 25. Bh4 Rc7 26. Kh2 Rcc8 27. Kg1 g5 28. Bg3 f6 29. Nd2 Bf8 30. Rd3 Nc5 31. Re3 Rcd8 32. Bh2 Rd4 33. Ne2 Rd7 34. Nc3 Red8 35. Ncb1 Rd3 36. Rxd3 Rxd3 |
| ECO B09 in 1990 play it! piket jeroen defeats white's comp rebel in 58 moves | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 Na6 6. Bb5+ c6 7. Bxa6 bxa6 8. O-O O-O 9. a4 Rb8 10. Qe2 a5 11. b3 Qb6 12. Rd1 Rd8 13. Ba3 Nh5 14. Qe3 Bh6 15. g3 e5 16. Ne2 Ba6 17. Bc1 Re8 18. Ba3 Re6 19. Re1 Rbe8 20. Qd2 exf4 21. Nxf4 Nxf4 22. gxf4 Rxe4 23. Bxd6 Be2 24. Kf2 Qd8 25. Bc5 Bxf3 26. Kxf3 Bxf4 27. Qc3 Qd5 28. Kf2 Qh5 29. Rxe4 Qxh2+ |
| ECO B09 in 1985 play it! piket jeroen defeats white's howell james in 68 moves | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bd3 O-O 6. Nf3 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 B07 in 1990 play it! piket jeroen defeats white's polgar zsofia in 58 moves | 1. e4 d6 2. d4 g6 3. Nc3 c6 4. f4 d5 5. e5 h5 6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3 e6 9. g3 Qb6 10. a3 Ne7 11. Ne2 a5 12. g4 Nd7 13. Rb1 c5 14. Be3 Nc6 15. c3 cxd4 16. Bxd4 Bc5 17. Bxc5 Nxc5 18. Bg2 hxg4 19. hxg4 Rxh1+ 20. Bxh1 g5 21. fxg5 Nxe5 22. Qf6 Ncd3+ 23. Kd2 Nc4+ 24. Kxd3 Qe3+ 25. Kc2 Qxe2+ 26. Kb3 Ra6 27. Qh8+ Kd7 28. Qh7 Rb6+ 29. Ka4 Nxb2+ |
| ECO B08 in 1995 play it! piket jeroen defeats white's morozevich alexa in 91 moves | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 c6 6. a4 O-O 7. Be3 a5 8. Nd2 Na6 9. Be2 c5 10. dxc5 Nxc5 11. e5 Ne8 12. exd6 Bxc3 13. Bxc5 exd6 14. Ba3 Bb4 15. c3 Bxa3 16. Rxa3 Nf6 17. O-O d5 18. Nf3 Re8 19. Bd3 Bd7 20. Bc2 Ra6 21. Qd4 Rae6 22. Bd3 Bc6 23. Raa1 Ne4 24. Rad1 Qe7 25. Bc2 b5 26. Qb6 bxa4 27. Nd4 Qc5 28. Qc7 Rf6 29. f3 Re7 30. Qc8+ Re8 31. Qg4 Nd6 32. Kh1 Nc4 33. Qg5 Rd6 34. Rde1 Rdd8 35. f4 Qd6 36. Nf5 f6 37. Rxe8+ Bxe8 38. Qg3 Qf8 39. Re1 Kh8 40. Qh4 gxf5 41. Bxf5 Rd7 42. Re6 Rg7 43. Rxf6 Qe7 44. Be6 Nd6 45. Bxd5 Bc6 46. Rxd6 |