| ECO A06 in 1999 play it! jonkman harmen defeats white's loos udo in 72 moves | 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. Nc3 e6 5. Bg5 Bb4 6. Qa4+ Nc6 7. a3 Bxc3+ 8. bxc3 Qd5 9. Bxf6 gxf6 10. g3 b5 11. Qc2 Bb7 12. Bg2 Qd7 13. e4 Na5 14. Nd2 c5 15. Qb2 O-O 16. O-O Rfd8 17. d5 exd5 18. exd5 Bxd5 19. Bxd5 Qxd5 20. Qxb5 Nb3 21. Nxb3 cxb3 22. c4 Qd3 23. Rab1 Rab8 24. Qxc5 a6 25. Qc6 Kg7 26. Qxa6 b2 27. Qa4 Rd4 28. Qa7 Rb3 29. Qe7 Rxc4 30. Qe1 Rc2 31. Qd1 Qf5 32. Qd4 Rd3 33. Qb6 Rdd2 34. Qe3 Rxf2 35. Rxf2 Rxf2 36. Qe1 Qc2 |
| ECO A06 in 1996 play it! jonkman harmen defeats white's floor d in 62 moves | 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7 9. a4 b4 10. Nbd2 Nbd7 11. e4 cxd4 12. e5 Nd5 13. Ne4 Qc7 14. Bd2 h6 15. Rac1 Qb6 16. Rc4 Be7 17. Ng3 Nc5 18. Bc2 d3 19. Bxd3 a5 20. Nd4 Nxa4 21. Qg4 Nxb2 22. Nxe6 fxe6 23. Bg6+ Kd7 24. Rc2 Na4 25. Nh5 Nc5 26. Nf4 Rhf8 27. Rd1 Rxf4 28. Bxf4 b3 29. Rcd2 Kc7 30. Be3 Nxe3 31. fxe3 Bd5 |
| ECO A06 in 2005 play it! jonkman harmen defeats white's cano cornejo tom in 76 moves | 1. Nf3 d5 2. d4 e6 3. Bf4 Nf6 4. a3 Nbd7 5. e3 Be7 6. Nbd2 Nh5 7. Be2 Nxf4 8. exf4 c5 9. O-O c4 10. c3 Qc7 11. g3 O-O 12. Re1 g6 13. Bf1 b5 14. Bh3 Bd6 15. Ne5 Nxe5 16. fxe5 Be7 17. Bg2 Bd7 18. Qe2 a5 19. f4 b4 20. f5 Rfb8 21. f6 Bf8 22. Qg4 bxc3 23. bxc3 Rb2 24. Nf3 Rab8 25. h4 h6 26. h5 g5 27. Nxg5 hxg5 28. Qxg5+ Kh7 29. Qh4 Bh6 30. g4 Rg8 31. Qg3 Qb7 32. Kh2 Ba4 33. Kh3 Bc2 34. Re2 Bf5 35. Bf3 Rxe2 36. Bxe2 Qb2 37. Qe1 Bd2 38. Qf1 Qxc3+ |
| ECO A06 in 2006 play it! jonkman harmen defeats white's molina alejandro in 68 moves | 1. Nf3 d5 2. d4 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 Qb6 6. Nb3 c4 7. Nc5 Qxb2 8. Rb1 Qc3+ 9. Qd2 Qxd2+ 10. Nxd2 b6 11. Na4 Bf5 12. Rb2 e6 13. c3 Ba3 14. Rb5 Bc2 15. Nb2 Nd7 16. Ndxc4 dxc4 17. Nxc4 Be7 18. Nd6+ Bxd6 19. Bxd6 Nf6 20. Rb2 Kd7 21. Ba3 Ba4 22. Ba6 Ne4 23. c4 Kc7 24. f3 Nf6 25. O-O Nb8 26. Bb5 Bxb5 27. Rxb5 Nbd7 28. Rc1 a6 29. Rb3 Rhc8 30. e4 e5 31. c5 exd4 32. cxb6+ Kb7 33. Rd1 Rc4 34. Bb2 Nc5 |
| ECO A09 in 2000 play it! jonkman harmen defeats white's efimov igor in 110 moves | 1. Nf3 d5 2. c4 e6 3. d4 dxc4 4. e3 a6 5. Bxc4 Nf6 6. O-O c5 7. dxc5 Bxc5 8. Qxd8+ Kxd8 9. Nc3 b5 10. Bd3 Bb7 11. e4 Nfd7 12. b3 Nc6 13. Bb2 Ke7 14. a4 b4 15. Ne2 f6 16. Nf4 g5 17. Nh5 g4 18. Ne1 Bd4 19. Ra2 Nde5 20. Be2 Bxb2 21. Rxb2 Nd4 22. f4 gxf3 23. Nxf3 Nexf3+ 24. gxf3 Rhg8+ 25. Kf2 Nxe2 26. Rxe2 Rac8 27. Rd1 Rg5 28. Nf4 Rgc5 29. Rd4 a5 30. Red2 R8c7 31. Ne2 Bc8 32. Rd8 Rc2 33. Ke1 Rxd2 34. Rxd2 Rc5 35. Nf4 Ba6 36. Rg2 Kd6 37. Rg7 Ke5 38. Nh5 Kd4 39. Nxf6 Ke3 40. Ng4+ Kxf3 41. Nf6 Ke3 42. Rg3+ Kd4 43. Nxh7 Rc3 44. Ng5 Rxg3 45. hxg3 Kc3 46. Nxe6 Kxb3 47. e5 Ka2 48. Nc5 Bc8 49. Kd2 b3 50. Ne4 b2 51. Ke3 Kb3 52. Kd4 Kxa4 53. Nd2 Kb4 54. Nb1 a4 55. Nc3 a3 |
| ECO A07 in 1996 play it! jonkman harmen defeats white's van den bergh ja in 72 moves | 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. O-O Nc6 5. d3 e6 6. Nbd2 Be7 7. e4 O-O 8. Re1 b5 9. e5 Nd7 10. Nf1 b4 11. h4 a5 12. N1h2 Ba6 13. Bf4 a4 14. Ng5 Qe8 15. Ng4 Nd4 16. h5 b3 17. axb3 axb3 18. cxb3 Qc8 19. Nh3 Qb7 20. Ne3 Nxb3 21. Rb1 Kh8 22. g4 Nd4 23. g5 Qb3 24. Qg4 Bxd3 25. Rbd1 Nb6 26. g6 fxg6 27. h6 Ra4 28. hxg7+ Kxg7 29. Kh1 h6 30. Qg3 c4 31. Ng4 Nf5 32. Qh2 Be2 33. Nxh6 Bxd1 34. Nxf5+ Rxf5 35. Bh6+ Kxh6 36. Nf4+ Bh5 |
| ECO A06 in 2001 play it! jonkman harmen defeats white's vedder richard in 54 moves | 1. Nf3 d5 2. b3 Bg4 3. Ne5 Bf5 4. f4 Nd7 5. Nf3 Bg4 6. e3 e5 7. fxe5 Nxe5 8. Be2 Bd6 9. Nc3 Nxf3+ 10. Bxf3 Qh4+ 11. Kf1 Nf6 12. Bb2 c6 13. Kg1 h5 14. Qe2 O-O 15. Rf1 Rae8 16. Qf2 Qg5 17. h4 Qg6 18. Bxg4 Nxg4 19. Qf5 Qxf5 20. Rxf5 d4 21. Nd1 dxe3 22. Nxe3 Nxe3 23. dxe3 Rxe3 24. Kf2 Rfe8 25. Rf1 Re2+ 26. Kg1 Rxc2 27. Bd4 Re4 |
| ECO A09 in 1999 play it! jonkman harmen defeats white's deglmann ludwig in 122 moves | 1. Nf3 d5 2. c4 e6 3. b3 Be7 4. Bb2 Bf6 5. d4 Ne7 6. Nc3 c5 7. e3 cxd4 8. Nxd4 Nbc6 9. Nxc6 bxc6 10. Bd3 Qa5 11. Rc1 Ba6 12. Qc2 dxc4 13. bxc4 Rb8 14. O-O h6 15. Ba1 O-O 16. Qe2 Rfd8 17. Rfd1 Rb7 18. h3 Rbd7 19. Ne4 Bxa1 20. Rxa1 f5 21. Ng3 Ng6 22. Bc2 Ne5 23. Rxd7 Rxd7 24. Bb3 c5 25. Qh5 Rd8 26. Qh4 Ng6 27. Qh5 Kh7 28. Rd1 Rd2 29. f4 Bb7 30. Rxd2 Qxd2 31. Qe2 Qc1+ 32. Nf1 Be4 33. Kf2 Nh4 34. g3 Nf3 35. Qd1 Qb2+ 36. Qe2 Qc1 37. Qd1 Qb2+ 38. Qe2 Qc3 39. Bd1 Kg6 40. Bb3 Kf6 41. g4 Qc1 42. Kg3 Qa1 43. gxf5 exf5 44. Ba4 Kf7 45. Kf2 Qf6 46. Ng3 Qh4 47. Qd1 Kg8 48. Bc2 Qxh3 49. Nxe4 fxe4 50. Qd8+ Kf7 51. Qd5+ Qe6 52. Bxe4 Nh4 53. Kg3 g5 54. Qxe6+ Kxe6 55. Kg4 Kf6 56. Kh5 Nf5 57. Bd3 Nxe3 58. Kxh6 g4 59. Kh5 g3 60. Be4 g2 61. Bxg2 Nxg2 |
| ECO A06 in 1999 play it! jonkman harmen defeats white's vul arkadi ereme in 72 moves | 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 a6 5. Bxc4 e6 6. O-O c5 7. Qe2 b5 8. Bd3 cxd4 9. exd4 Nc6 10. Rd1 Nb4 11. Nc3 Nxd3 12. Rxd3 Be7 13. d5 exd5 14. Bg5 O-O 15. Re1 Bf5 16. Rdd1 Re8 17. Bxf6 Bxf6 18. Qxe8+ Qxe8 19. Rxe8+ Rxe8 20. Nxd5 Bg4 21. Nxf6+ gxf6 22. Rd6 Rc8 23. Kf1 a5 24. Ke2 Bxf3+ 25. gxf3 Rc5 26. Rd4 Kg7 27. Rg4+ Kh6 28. Kd2 Rh5 29. Ke2 Rc5 30. Kd2 Rd5+ 31. Ke2 f5 32. Rf4 Kg6 33. Ke3 Kf6 34. Rd4 Rc5 35. Kd3 Rc1 36. Rd5 Rd1+ |
| ECO A06 in 1994 play it! jonkman harmen defeats white's van laatum gozew in 42 moves | 1. Nf3 d5 2. d4 Nf6 3. e3 c5 4. c3 e6 5. Bd3 Nc6 6. Nbd2 Qc7 7. O-O Bd6 8. h3 O-O 9. Qe2 h6 10. dxc5 Bxc5 11. e4 Nh5 12. Nb3 Bb6 13. exd5 Ng3 14. Qd1 Nxf1 15. d6 Qd8 16. Bxf1 e5 17. c4 Be6 18. Be3 Bxe3 19. fxe3 e4 20. Ne1 Qg5 21. Nc2 Rad8 |
| ECO A07 in 1997 play it! jonkman harmen defeats white's mulder bart piet in 76 moves | 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. O-O Bg4 5. b3 Nbd7 6. Bb2 e6 7. d3 Bc5 8. Nbd2 O-O 9. h3 Bf5 10. Qe1 Bg6 11. e4 dxe4 12. dxe4 Qc7 13. e5 Nd5 14. Ne4 Be7 15. a3 b5 16. Qe2 c5 17. c4 bxc4 18. bxc4 N5b6 19. a4 Rab8 20. Bc3 Nc8 21. Rfd1 Rd8 22. a5 a6 23. Qe3 Na7 24. Qf4 Nc6 25. h4 Nf8 26. Nd6 Rb3 27. Rac1 Ra3 28. g4 h5 29. gxh5 Bxh5 30. Ng5 Bxg5 31. hxg5 Ng6 32. Qe4 Bxd1 33. Qxc6 Qxc6 34. Bxc6 Nf4 35. Rxd1 Rxc3 36. Be8 Nh3+ 37. Kg2 Nxg5 38. Rb1 Kf8 |
| ECO A09 in 2000 play it! jonkman harmen defeats white's beaumont chris in 52 moves | 1. Nf3 d5 2. c4 e6 3. d4 dxc4 4. Qa4+ Nd7 5. Qxc4 Ngf6 6. g3 a6 7. Bg2 b5 8. Qc2 Bb7 9. O-O c5 10. Bg5 Rc8 11. Qd2 Be7 12. Nc3 b4 13. Na4 c4 14. a3 a5 15. Rfd1 O-O 16. Qe1 Be4 17. axb4 axb4 18. Nc5 Nxc5 19. dxc5 Nd5 20. Bxe7 Qxe7 21. c6 c3 22. bxc3 Nxc3 23. Rd7 Qf6 24. Nd4 Bxg2 25. Kxg2 e5 26. Nc2 Qxc6+ |
| ECO A06 in 1995 play it! jonkman harmen defeats white's ten thije hens j in 58 moves | 1. Nf3 d5 2. Nc3 Nf6 3. d4 c5 4. dxc5 Nc6 5. e4 d4 6. e5 dxc3 7. Qxd8+ Nxd8 8. exf6 exf6 9. Bb5+ Bd7 10. Bxd7+ Kxd7 11. Be3 cxb2 12. Rd1+ Kc7 13. Bf4+ Kc8 14. O-O Ne6 15. Bd6 Nxc5 16. Bg3 Ne6 17. Rd3 Bc5 18. Rb1 Rd8 19. Rxb2 b6 20. Rbb3 Kb7 21. a4 Ka6 22. h4 Ka5 23. Nd2 Kxa4 24. Nc4 Rxd3 25. Nb2+ Ka5 26. cxd3 b5 27. Kh1 Rd8 28. f4 Nd4 29. Rc3 Kb6 |
| ECO A06 in 2002 play it! jonkman harmen defeats white's werle jan in 78 moves | 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 a6 6. a3 b5 7. Ba2 c5 8. O-O Bb7 9. Nc3 Nbd7 10. Qe2 Bd6 11. e4 cxd4 12. Nxd4 Qb8 13. f4 Bc5 14. Be3 h5 15. b4 Bb6 16. h3 Qa7 17. Rad1 Rc8 18. Qd2 Nxe4 19. Nxe4 Bxe4 20. Rfe1 Nf6 21. f5 e5 22. Nf3 O-O 23. Bxb6 Qxb6+ 24. Qe3 Qxe3+ 25. Rxe3 Bxf3 26. gxf3 Rfd8 27. Rxd8+ Rxd8 28. Bb3 h4 29. Rc3 Rd7 30. Rc6 Rd3 31. Rc8+ Kh7 32. Bxf7 Rxa3 33. Kf2 Kh6 34. Be6 Ra4 35. Ra8 Rxb4 36. Rxa6 Rb2+ 37. Ke3 Rh2 38. Rb6 Rxh3 39. Rxb5 e4 |
| ECO A13 in 1999 play it! jonkman harmen defeats white's rantanen yrjo a in 36 moves | 1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Na6 7. e3 Nb4 8. Qd2 Bf5 9. Rc1 a5 10. a3 Na6 11. Nf3 Be7 12. Ne5 O-O 13. Bd3 Bxd3 14. Nxd3 Nd7 15. Bxe7 Qxe7 16. Nb1 Nc7 17. b3 Nb5 18. a4 Nxd4 |
| ECO A13 in 2005 play it! jonkman harmen defeats white's bosboom lanchava in 70 moves | 1. c4 e6 2. d4 d5 3. cxd5 exd5 4. Nc3 c6 5. Bf4 Bd6 6. Bg3 Ne7 7. e3 Bf5 8. Nf3 h5 9. Bd3 Qc7 10. Bxd6 Qxd6 11. Bxf5 Nxf5 12. Qc2 Ne7 13. O-O-O Nd7 14. Kb1 f5 15. Ng5 h4 16. f3 Rf8 17. e4 Qh6 18. exd5 Qxg5 19. d6 Nc8 20. Rhe1+ Kf7 21. Qb3+ Kg6 22. f4 Qg4 23. h3 Qxf4 24. Qe6+ Nf6 25. Rf1 Qg5 26. d7 Nb6 27. d5 Rad8 28. dxc6 bxc6 29. Rd4 Rxd7 30. Rdf4 Re8 31. Qxc6 Re1+ 32. Rxe1 Qxf4 33. Qb5 Rd2 34. a4 Nc4 35. Nd1 Rxb2+ |
| ECO A13 in 2000 play it! jonkman harmen defeats white's postny evgeny in 62 moves | 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 dxc4 5. e4 Bb4 6. Bxc4 c5 7. dxc5 Bxc3+ 8. bxc3 Qa5 9. Bxf6 gxf6 10. Qd4 Nd7 11. Ne2 Qxc5 12. O-O a6 13. a4 b6 14. Rfd1 Ra7 15. Bb3 Rc7 16. Rac1 Bb7 17. Ng3 Ke7 18. Qd2 h5 19. Qe2 h4 20. Nf1 Rg8 21. Nd2 Ne5 22. Kf1 Ng6 23. Qf3 Qg5 24. g3 f5 25. Qe2 hxg3 26. fxg3 Ne5 27. Qf2 Ng4 28. Qxb6 Nxh2+ 29. Ke2 Qg4+ 30. Ke1 Qxg3+ 31. Qf2 fxe4 |
| ECO A13 in 1993 play it! jonkman harmen defeats white's wagenaar harm th in 58 moves | 1. c4 e6 2. g3 d5 3. b3 c5 4. Bb2 Nf6 5. Bg2 d4 6. Nf3 Nc6 7. O-O Bd6 8. d3 O-O 9. e3 e5 10. e4 Ne7 11. Nbd2 Ng6 12. Qe2 Bd7 13. a4 Qc8 14. Rfe1 Bc7 15. Ba3 Ba5 16. Rab1 Bc3 17. Bb2 Bb4 18. Qd1 a5 19. Qc1 Bh3 20. Ba3 Nf4 21. Bxh3 Qxh3 22. gxf4 Nh5 23. Ng5 Qg4+ 24. Kh1 Bxa3 25. Qxa3 Nxf4 26. Rg1 Qe2 27. Rbe1 Qxd2 28. Rd1 Qe2 29. Rde1 Qh5 |
| ECO A13 in 2001 play it! jonkman harmen defeats white's maksimenko andre in 78 moves | 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 O-O 7. Rc1 a6 8. c5 h6 9. Bh4 Re8 10. Bd3 c6 11. O-O b6 12. cxb6 c5 13. Bb1 c4 14. e4 Qxb6 15. e5 Nh7 16. Qc2 Ndf8 17. Rcd1 Bd7 18. Rfe1 Bb4 19. Re3 Rab8 20. Rd2 Rb7 21. Ne1 Qa5 22. a3 Bxc3 23. Rxc3 Ng6 24. Bg3 Reb8 25. Qc1 Ne7 26. Bh4 Nf5 27. Bxf5 exf5 28. Be7 Rb3 29. Bb4 Qa4 30. Rxb3 Qxb3 31. Rc2 Ng5 32. Rc3 Qa4 33. Rg3 Ne6 34. Bc3 f4 35. Rf3 Qb3 36. h4 Ba4 37. Bd2 Qd1 38. Bxf4 Nxd4 39. Qe3 Rb3 |
| ECO A17 in 2000 play it! jonkman harmen defeats white's timmermans ivo in 76 moves | 1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. Bg5 Bb4 5. Nf3 dxc4 6. e4 c5 7. Bxc4 cxd4 8. Nxd4 Bxc3+ 9. bxc3 Qa5 10. Bb5+ Nbd7 11. Bxf6 Qxc3+ 12. Kf1 gxf6 13. h4 Qb4 14. Rb1 Qd6 15. Rh3 a6 16. Rd3 axb5 17. Nxb5 Qh2 18. Nd6+ Ke7 19. Nxc8+ Rhxc8 20. Rxd7+ Ke8 21. Rbxb7 Qh1+ 22. Ke2 Rxa2+ 23. Rd2 Qxg2 24. Ke3 Rc3+ 25. Kd4 Rxd2+ 26. Qxd2 Rc4+ 27. Kxc4 Qxe4+ 28. Qd4 Qxb7 29. Qxf6 Qd5+ 30. Kc3 h5 31. Kb2 Qd1 32. Qf4 Qg4 33. Qf6 Qg6 34. Qd4 Kf8 35. Kc1 Qg4 36. Qf6 Qg6 37. Qd8+ Kg7 38. Kd1 Qf6 |