| ECO B40 in 1993 play it! de jong p defeats black's telchuis i in 80 moves | 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. g3 d6 5. Bg2 Nf6 6. O-O a6 7. d4 cxd4 8. Nxd4 Qc7 9. Be3 Be7 10. Qe2 O-O 11. Rad1 Rb8 12. Nb3 b5 13. a3 Ne5 14. Bc1 Nc4 15. Nb1 a5 16. N1d2 Nxd2 17. Rxd2 Nd7 18. Nd4 b4 19. axb4 axb4 20. Rfd1 Qb6 21. b3 Bg5 22. f4 Bxf4 23. gxf4 e5 24. Bb2 exd4 25. Bxd4 Nc5 26. Qf2 Qc7 27. e5 Ne6 28. exd6 Qd7 29. Be5 Bb7 30. f5 Ng5 31. h4 Ne4 32. Bxe4 Bxe4 33. Bxg7 Rfe8 34. Qg3 Bxf5 35. Bf6+ Bg6 36. h5 Re6 37. Rf2 Rb5 38. hxg6 hxg6 39. Rd4 Re1+ 40. Kg2 Rh5 |
| ECO B32 in 1989 play it! de jong p defeats black's de wild j in 73 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Be3 d6 7. Qd2 Nf6 8. f3 Be7 9. O-O-O O-O 10. g4 e5 11. Nf5 Bxf5 12. gxf5 Re8 13. Rg1 Kh8 14. Bc4 Rf8 15. Qg2 Ne8 16. Nd5 b5 17. Bb3 Na5 18. Bb6 Nxb3+ 19. axb3 Qd7 20. Nc7 Rg8 21. Nxa8 Qb7 22. f4 Bf6 23. Rd3 Qxa8 24. fxe5 Bxe5 25. Rh3 Rf8 26. Rd3 Qc6 27. Bd4 f6 28. h4 Rf7 29. h5 h6 30. Be3 Rf8 31. Qg6 Qxe4 32. Bxh6 Bf4+ 33. Bxf4 Qxf4+ 34. Kb1 Qh6 35. Re1 Qxg6 36. hxg6 Nc7 37. Rh3+ |
| ECO B54 in 1989 play it! de jong p defeats black's atteveld w in 47 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Bd7 5. Nc3 Nc6 6. Be3 Nf6 7. Qd2 Ng4 8. Bc4 Nge5 9. Bb3 Na5 10. O-O Nac4 11. Qe2 Qc8 12. f4 Nxe3 13. Qxe3 Nc4 14. Qe2 Nb6 15. e5 Qc5 16. Rad1 dxe5 17. fxe5 e6 18. Qf3 Qe7 19. Ne4 Nc8 20. Nd6+ Nxd6 21. exd6 Qh4 22. Qxf7+ Kd8 23. Nxe6+ Kc8 24. Nxf8 |
| ECO B54 in 1984 play it! de jong p defeats black's hoeksma j in 83 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 g6 6. Be3 Bg7 7. Qd2 Nf6 8. f3 Bd7 9. O-O-O a6 10. Nb3 b5 11. Bh6 O-O 12. Bxg7 Kxg7 13. h4 h5 14. Be2 Rh8 15. Nd5 Nxd5 16. exd5 Ne5 17. Qd4 f6 18. g4 hxg4 19. fxg4 Rc8 20. g5 Bf5 21. gxf6+ exf6 22. c3 Qe7 23. Rhe1 Qc7 24. Rg1 a5 25. Qf2 Bd7 26. Rdf1 Qd8 27. a3 b4 28. axb4 axb4 29. Rg3 Rxh4 30. Nd4 Rh6 31. Bb5 bxc3 32. bxc3 f5 33. Bxd7 Qxd7 34. Nxf5+ Kh7 35. Nxh6 Qb5 36. Qa7+ Kh8 37. Rh1 Nd3+ 38. Rxd3 Qxd3 39. Nf7+ Kg8 40. Rh8+ Kg7 41. Ne5+ Kxh8 42. Nxd3 |
| ECO B21 in 1988 play it! de jong p defeats black's homan p by checkmate in 55 moves | 1. e4 c5 2. f4 e6 3. d3 Nc6 4. Nf3 Nf6 5. g3 b6 6. Bg2 Bb7 7. O-O Be7 8. c3 O-O 9. Na3 d5 10. e5 Ne8 11. d4 cxd4 12. cxd4 Bxa3 13. bxa3 Na5 14. Nh4 g6 15. Qe1 Nc4 16. g4 Ng7 17. f5 exf5 18. gxf5 Qc7 19. Bh6 Rfe8 20. Qc1 Qd7 21. Bxg7 Kxg7 22. Bh3 Qa4 23. fxg6 Nd6 24. Qf4 fxg6 25. Qf6+ Kh6 26. exd6 Rf8 27. Nf5+ Kh5 28. Qh4# |
| ECO B23 in 1988 play it! de jong p defeats black's van vucht s by checkmate in 61 moves | 1. e4 c5 2. Nc3 Nc6 3. Nge2 e6 4. d4 cxd4 5. Nxd4 Qc7 6. g3 a6 7. Bg2 Nf6 8. O-O Be7 9. Be3 d6 10. f4 O-O 11. h3 Bd7 12. g4 Nxd4 13. Bxd4 Bc6 14. Qe2 b5 15. a3 Qb7 16. Rad1 Rfd8 17. g5 Nd7 18. h4 Bf8 19. h5 Nb6 20. Qg4 Nc4 21. g6 Nxb2 22. gxh7+ Kxh7 23. Rb1 Nc4 24. h6 g6 25. f5 e5 26. fxg6+ fxg6 27. Rf6 Be8 28. Rxf8 exd4 29. Nd5 g5 30. Qxg5 Bg6 31. Nf6# |
| ECO B93 in 1985 play it! de jong p defeats black's pfeiffer e in 67 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 Nc6 8. Nf3 e6 9. O-O Bd7 10. a4 Nb4 11. Qe1 d5 12. exd5 Nfxd5 13. Nxd5 Nxd5 14. Ne5 Bc5+ 15. Kh1 Nb4 16. Be4 Be7 17. c3 Nc6 18. Nxd7 Qxd7 19. Be3 f5 20. Bc2 O-O 21. Rd1 Qc7 22. Qf2 Rae8 23. Bb3 Bd6 24. Rfe1 Rf6 25. Re2 Rh6 26. Red2 Be7 27. Rd7 Qb8 28. Bb6 Bh4 29. g3 Bd8 30. Bxd8 Nxd8 31. Qb6 Nc6 32. Rxb7 Qc8 33. Rc7 Qa8 34. Qxc6 |
| ECO B30 in 1990 play it! de jong p defeats black's van beek d in 103 moves | 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Qd2 Nf6 8. f3 Bd7 9. O-O-O Ne5 10. Bh6 O-O 11. h4 Rc8 12. h5 Qa5 13. Bxg7 Kxg7 14. hxg6 fxg6 15. Qh6+ Kf7 16. Nb3 Qc7 17. Rd2 e6 18. g4 Ke7 19. Be2 Nf7 20. Qf4 g5 21. Qe3 Qb6 22. Qxb6 axb6 23. Rhd1 Rc7 24. Nd4 Rd8 25. Ndb5 Bxb5 26. Nxb5 Rc5 27. b4 Rc6 28. Kb2 Nd7 29. Na3 Nde5 30. Rd4 Rdc8 31. R1d2 Rc3 32. Nb5 Re3 33. Kc1 Nxf3 34. Bxf3 Rxf3 35. Nxd6 Rc7 36. Nb5 Rc6 37. Rd7+ Kf6 38. Rxb7 Ne5 39. Kd1 Nxg4 40. Ke1 Re3+ 41. Re2 Rxe2+ 42. Kxe2 Rxc2+ 43. Kd3 Rxa2 44. Rxb6 Ne5+ 45. Kc3 g4 46. Nd4 Ra3+ 47. Kc2 g3 48. Rxe6+ Kf7 49. Rxe5 g2 50. Rg5 Ra2+ 51. Kd3 h5 52. Nc2 |
| ECO B34 in 1984 play it! de jong p defeats black's vegter kj in 83 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 Nf6 7. f3 O-O 8. Qd2 d6 9. Bc4 Bd7 10. O-O-O Ne5 11. Bb3 Qa5 12. Kb1 Rfc8 13. h4 Nc4 14. Bxc4 Rxc4 15. Nb3 Qa6 16. Bh6 Bxh6 17. Qxh6 Rac8 18. h5 Rxc3 19. bxc3 Be6 20. hxg6 fxg6 21. g4 Qc4 22. Rd3 a5 23. Rh2 a4 24. Nc1 Rc6 25. Ne2 Qxa2+ 26. Kc1 Bc4 27. Nf4 Bxd3 28. Nd5 Nxd5 29. Qxh7+ Kf8 30. Qh8+ Kf7 31. Rh7+ Ke6 32. exd5+ Kxd5 33. Qd4+ Ke6 34. Qe3+ Kd5 35. Qxd3+ Kc5 36. Qd4+ Kb5 37. Rxe7 Ka6 38. Re8 Qc4 39. Ra8+ Kb5 40. Qa7 b6 41. Qa6+ Kc5 42. Qxa4 |
| ECO B33 in 1988 play it! de jong p defeats black's wissell l in 121 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 a6 7. Nd6+ Bxd6 8. Qxd6 Qe7 9. Qxe7+ Nxe7 10. Be3 O-O 11. Bc5 Re8 12. O-O-O b5 13. f3 Bb7 14. g4 Bc6 15. Bd6 Ng6 16. h4 Rec8 17. h5 Nf8 18. g5 Ne8 19. Be5 Rd8 20. Bd3 d6 21. Bd4 e5 22. Be3 Ne6 23. Nd5 Bxd5 24. exd5 Nc5 25. Bxc5 dxc5 26. Rhe1 f6 27. gxf6 gxf6 28. f4 Nd6 29. fxe5 fxe5 30. Rxe5 Re8 31. Rg5+ Kh8 32. Rdg1 Rg8 33. Rxg8+ Rxg8 34. Rxg8+ Kxg8 35. Kd2 c4 36. Be2 h6 37. Kc3 Kf7 38. Kb4 Kf6 39. Ka5 Ke5 40. Bf3 Kd4 41. Kb6 a5 42. Kc6 Ke5 43. c3 b4 44. Kc5 bxc3 45. bxc3 Nb7+ 46. Kxc4 Kd6 47. Kb5 a4 48. Kxa4 Kc5 49. Kb3 Na5+ 50. Kc2 Nc4 51. Kd3 Nb2+ 52. Ke4 Kd6 53. Kf5 Nc4 54. a4 Ke7 55. Bh1 Kf7 56. Be4 Nd6+ 57. Ke5 Ke7 58. Bd3 Nf7+ 59. Kd4 Kd6 60. c4 Ng5 61. c5+ |
| ECO B33 in 1983 play it! de jong p defeats black's luca a in 103 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Nxd4 7. Qxd4 e5 8. Qa4+ Bd7 9. Bb5 a6 10. Bxd7+ Qxd7 11. Bxf6 Qxa4 12. Nxa4 gxf6 13. Nb6 Rd8 14. O-O-O Rg8 15. g3 h5 16. Rd3 Rg5 17. h4 Rg4 18. Re1 Ke7 19. Rf3 Rg6 20. Rf5 Rh6 21. Re3 Ke6 22. Rd3 Be7 23. c4 Re8 24. Rb3 Rb8 25. Nd5 Bd8 26. Rc3 Rc8 27. b4 a5 28. a3 b6 29. Kb2 Rh8 30. Kb3 Rb8 31. Ka4 axb4 32. axb4 Ra8+ 33. Kb5 Ra2 34. Rcf3 Rh6 35. Nxb6 Re2 36. Re3 Rxe3 37. fxe3 Rg6 38. Rf3 Rg4 39. Kc6 Rxe4 40. b5 Bxb6 41. Kxb6 Rxc4 42. Kb7 e4 43. Rf1 Rc3 44. b6 Rxe3 45. Kb8 Rxg3 46. b7 Rb3 47. Rc1 f5 48. Kc7 d5 49. Rc6+ Ke5 50. Rb6 Rc3+ 51. Kd8 Rg3 52. b8=Q+ |
| ECO B33 in 1989 play it! de jong p defeats black's verboom b in 66 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 f5 10. exf5 Bxf5 11. Nd5 Rc8 12. c3 Bg7 13. Nc4 Ne7 14. Nxe7 Kxe7 15. Qf3 Be6 16. Qxb7+ Rc7 17. Qxa6 Qd7 18. Rd1 Rc6 19. Qa4 Qc7 20. Ne3 Rc5 21. Qh4+ Bf6 22. Qh5 Qc8 23. g3 Rg8 24. Qxh7 Bg5 25. Qd3 d5 26. h4 Bxe3 27. Qxe3 Rg4 28. Be2 Re4 29. Qg5+ Kd6 30. f3 Rxe2+ 31. Kxe2 Qa6+ 32. Kf2 Qxa2 33. Rd2 Rc4 |
| ECO B76 in 1984 play it! de jong p defeats black's stegeman c in 65 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. g4 Bxg4 10. fxg4 Nxg4 11. Nb3 Rc8 12. h4 Nce5 13. Be2 Nxe3 14. Qxe3 Nc4 15. Bxc4 Rxc4 16. h5 Qc8 17. Nd5 Qe6 18. Nd2 Rxc2 19. hxg6 fxg6 20. Qb3 Qf7 21. Qxc2 Qf2+ 22. Kd1 Qg2 23. Nxe7+ Kh8 24. Re1 Rf2 25. Kc1 Bh6 26. Rd1 Rf1 27. Qc3+ Bg7 28. Qb3 Rf8 29. Kc2 Qg5 30. Nd5 Rc8+ 31. Nc3 Qc5 32. Rac1 b5 33. Kb1 |
| ECO B75 in 1989 play it! de jong p defeats black's mankinen m in 56 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Bd7 10. O-O-O Rc8 11. Bb3 Ne5 12. h4 h5 13. Bh6 Bxh6 14. Qxh6 Rxc3 15. bxc3 Qc7 16. Kb1 Qxc3 17. Ne2 Qc5 18. g4 Nxf3 19. Qxg6+ Kh8 20. Qh6+ Kg8 21. g5 Ng4 22. Qg6+ Kh8 23. Qxh5+ Kg7 24. Rhf1 Nfe5 25. Ng3 e6 26. g6 fxg6 27. Qg5 Nf6 28. Rxf6 Rxf6 |
| ECO B20 in 1992 play it! de jong p defeats black's hannaske b in 109 moves | 1. e4 c5 2. Ne2 Nc6 3. Nbc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Qd2 Ng4 8. Nxc6 bxc6 9. Bd4 O-O 10. Bxg7 Kxg7 11. Be2 d6 12. Bxg4 Bxg4 13. f3 Be6 14. h4 h5 15. Ne2 Qb6 16. Qc3+ Kh7 17. Nf4 Rab8 18. Nxe6 fxe6 19. O-O-O Qb4 20. Rd3 a5 21. a3 Qxc3 22. Rxc3 Rb6 23. Rd1 e5 24. Rc4 Rfb8 25. b3 c5 26. Kd2 Kg7 27. Ke3 Ra8 28. Ra4 Rbb8 29. g3 Kf6 30. f4 Ke6 31. Rd5 exf4+ 32. gxf4 Rf8 33. Rg5 Rf6 34. e5 dxe5 35. fxe5 Rf5 36. Rxg6+ Kf7 37. Rg5 Rxg5 38. hxg5 Kg6 39. b4 cxb4 40. axb4 Rc8 41. bxa5 Rxc2 42. a6 Rc8 43. a7 Ra8 44. Kf4 e6 45. Ra6 Kf7 46. g6+ Kxg6 47. Rxe6+ Kf7 48. Ra6 Ke7 49. Kg5 Kf7 50. Kxh5 Kg7 51. Kg5 Kf7 52. Kf5 Ke7 53. Ke4 Ke8 54. Kd5 Ke7 55. Kc6 |
| ECO B23 in 1990 play it! de jong p defeats black's barentsen j in 47 moves | 1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 Nf6 5. e5 Nd5 6. Nxd5 exd5 7. d4 Qb6 8. dxc5 Bxc5 9. Qxd5 Bf2+ 10. Kd1 O-O 11. Bd3 Nb4 12. Qe4 Nxd3 13. cxd3 Qc6 14. Qe2 Bb6 15. f5 f6 16. Rf1 fxe5 17. Nxe5 Qd5 18. f6 d6 19. fxg7 Rxf1+ 20. Qxf1 Kxg7 21. Nc4 Bg4+ 22. Kc2 Rf8 23. Bh6+ Kxh6 24. Qxf8+ |
| ECO B21 in 1982 play it! de jong p defeats black's van hal j in 61 moves | 1. e4 c5 2. f4 e6 3. d3 d5 4. Qe2 d4 5. Nf3 Nc6 6. g3 Qc7 7. Bg2 e5 8. fxe5 Nxe5 9. Nxe5 Qxe5 10. Bf4 Qe6 11. Na3 Bd6 12. O-O Ne7 13. Nc4 Bxf4 14. gxf4 O-O 15. Qh5 b5 16. Nd2 Qb6 17. b3 Bb7 18. f5 f6 19. Rf4 Kh8 20. Rh4 h6 21. Kh1 Bc6 22. Rg1 Ng8 23. Bf3 a5 24. Qg6 Ra7 25. Rg3 Re7 26. Rgh3 Qc7 27. Nf1 Be8 28. Qg2 c4 29. Qd2 cxb3 30. axb3 b4 31. Ng3 |
| ECO B35 in 1991 play it! de jong p defeats black's vreeken k in 37 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 Qa5 8. O-O O-O 9. h3 Qb4 10. Bb3 Nxe4 11. Nd5 Qa5 12. Nxc6 bxc6 13. Nxe7+ Kh8 14. Nxc8 Raxc8 15. Qxd7 Nc5 16. Qe7 Nxb3 17. axb3 Qf5 18. Qc5 Qe6 19. Bd4 |
| ECO B33 in 1990 play it! de jong p defeats black's mesic d in 59 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 Be7 10. Bxf6 Bxf6 11. Nc4 Be7 12. Nd5 Bf8 13. Bd3 b5 14. Nce3 Be6 15. O-O Be7 16. a4 b4 17. Kh1 O-O 18. g3 Nd4 19. Nxb4 a5 20. Nbd5 Bg5 21. f4 exf4 22. gxf4 Bh4 23. f5 Bxd5 24. Nxd5 Rb8 25. f6 Bxf6 26. Nxf6+ gxf6 27. Qh5 Rxb2 28. Rf4 Ne6 29. Rg1+ Kh8 30. Qxh7+ |
| ECO B54 in 1989 play it! de jong p defeats black's van der linden v in 73 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nxd4 6. Qxd4 e5 7. Qd3 a6 8. Be3 Nf6 9. f3 Be6 10. O-O-O b6 11. g4 Nd7 12. Nd5 Nc5 13. Qa3 Bxd5 14. exd5 b5 15. Bxc5 dxc5 16. Qe3 Bd6 17. f4 Qf6 18. f5 O-O 19. Bd3 Qe7 20. g5 f6 21. h4 Qc7 22. Be4 c4 23. Rh3 Bc5 24. Qe2 Qa5 25. Kb1 c3 26. Rxc3 Bd4 27. Ra3 Qb6 28. d6 Ra7 29. Bd5+ Kh8 30. Be6 Qxd6 31. c3 b4 32. Rb3 bxc3 33. bxc3 Rb8 34. cxd4 Rxb3+ 35. Bxb3 a5 36. dxe5 Qe7 37. exf6 |