| ECO B20 in 1987 play it! de jong p defeats black's ootes p in 83 moves | 1. e4 c5 2. Ne2 d6 3. c4 Nf6 4. Nbc3 Nc6 5. g3 Ne5 6. Ng1 Be6 7. d3 g6 8. Bg2 Bg7 9. f4 Nc6 10. Nge2 Qd7 11. O-O Bh3 12. Rb1 h5 13. f5 Bxg2 14. Kxg2 h4 15. Nd5 O-O-O 16. Qa4 hxg3 17. Nxg3 b6 18. a3 Nxd5 19. cxd5 Nd4 20. Qa6+ Kb8 21. b4 Qb7 22. Qxb7+ Kxb7 23. bxc5 dxc5 24. fxg6 fxg6 25. Bg5 Rh7 26. Bxe7 Rdh8 27. h4 Be5 28. Bg5 Kc7 29. Rf2 Kd6 30. Rbf1 Nb5 31. a4 Nc3 32. Rf7 Bxg3 33. Kxg3 b5 34. axb5 Nxb5 35. Be7+ Ke5 36. Bf6+ Kd6 37. Bxh8 Rxh8 38. R7f6+ Ke5 39. Rxg6 Nd4 40. Rg5+ Kd6 41. Rf6+ Ke7 42. e5 |
| ECO B80 in 1988 play it! de jong p defeats black's niens i in 61 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 Nc6 7. f3 Be7 8. Qd2 O-O 9. O-O-O Bd7 10. g4 Nxd4 11. Bxd4 h6 12. h4 Nh7 13. g5 h5 14. f4 g6 15. Be2 f6 16. gxf6 Nxf6 17. Rhg1 Kh7 18. e5 dxe5 19. fxe5 Ng8 20. Bd3 Be8 21. Qe2 Rf5 22. Bxf5 exf5 23. e6 Qa5 24. Bf2 Bf6 25. Rd5 Qb4 26. a3 Qe7 27. Rgd1 Bxc3 28. Rd7 Bxd7 29. Rxd7 Qxd7 30. exd7 Ba5 31. Qe8 |
| ECO B32 in 1988 play it! de jong p defeats black's van der laar j in 80 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qd1 Qg6 9. Nc3 d5 10. Nxd5 Qxe4+ 11. Be3 Nd4 12. Nc7+ Ke7 13. Rc1 Bh3 14. Nxa8 Bxg2 15. Bxg2 Qxg2 16. Rf1 Qe4 17. Qd3 Nf3+ 18. Kd1 Qg4 19. Bc5+ Kf6 20. Qd6+ Kg5 21. Be3+ Kh4 22. h3 Kxh3 23. Qd3 Kh2 24. c3 Ne7 25. Kc2 Qg6 26. Qxg6 Nxg6 27. Nb6 h5 28. Nc4 Kh3 29. Nd2 Ngh4 30. Nxf3 Nxf3 31. Kd3 f5 32. Ke2 e4 33. Rcd1 g5 34. Rh1+ Kg2 35. Bxg5 Rg8 36. Bf4 h4 37. a4 h3 38. a5 Rg4 39. Ke3 Rh4 40. b4 Rh8 |
| ECO B20 in 1986 play it! de jong p defeats black's van der valk p in 73 moves | 1. e4 c5 2. Ne2 Nc6 3. c4 d6 4. Nbc3 g6 5. g3 Bg7 6. Bg2 e6 7. d3 Nge7 8. O-O O-O 9. f4 f5 10. Rb1 b6 11. exf5 gxf5 12. Be3 Bb7 13. d4 cxd4 14. Nxd4 Qd7 15. Re1 e5 16. fxe5 Nxd4 17. Bxb7 Qxb7 18. Bxd4 Nc6 19. Qf3 Rad8 20. Qd5+ Kh8 21. Rbd1 Qd7 22. e6 Bxd4+ 23. Rxd4 Qg7 24. Rf4 Ne7 25. Qd4 Rc8 26. Rd1 Ng6 27. Qxg7+ Kxg7 28. Rfd4 Ne5 29. Rxd6 Rxc4 30. Kg2 f4 31. gxf4 Rcxf4 32. e7 Rg4+ 33. Kh1 Re8 34. Nd5 Nf7 35. Rd7 Re4 36. Rg1+ Kh6 37. Nf6 |
| ECO B32 in 1987 play it! de jong p defeats black's leclercq h in 35 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 e6 4. Nc3 a6 5. d5 Nb8 6. Bf4 d6 7. dxe6 Bxe6 8. Ng5 Nc6 9. Nxe6 fxe6 10. Bc4 Qd7 11. Qg4 e5 12. Be6 Qe7 13. Nd5 Qd8 14. Bg5 Nf6 15. Bxf6 Ne7 16. Bxe7 Qxe7 17. Nxe7 Bxe7 18. Qf5 |
| ECO B41 in 1990 play it! de jong p defeats black's heemskerk w in 57 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 a6 7. Qd2 b5 8. f3 Nbd7 9. g4 Nb6 10. Qf2 Nfd7 11. f4 Bb7 12. f5 exf5 13. Nxf5 b4 14. Nd5 Nxd5 15. exd5 g6 16. Bd4 Ne5 17. Ne3 Bg7 18. Bg2 Nd3+ 19. cxd3 Bxd4 20. O-O O-O 21. Rae1 Qb6 22. Kh1 Rae8 23. Be4 Bc8 24. Rg1 Kh8 25. Qf4 Bxe3 26. Rxe3 Qd4 27. Rh3 f5 28. Qh6 Rf7 29. Qxg6 |
| ECO B41 in 1991 play it! de jong p defeats black's smit j in 83 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 d5 7. e5 Ne4 8. Bxe4 dxe4 9. Nb5 Bxc3+ 10. Nxc3 Qa5 11. Bf4 O-O 12. O-O Nc6 13. Nxe4 Nxe5 14. Re1 Ng6 15. Bd2 Qb6 16. Qh5 f6 17. Bc3 Nf4 18. Qf3 Nd5 19. Rad1 Nxc3 20. Qxc3 Rd8 21. Nc5 e5 22. Qc4+ Kh8 23. b4 Bf5 24. g4 Bg6 25. h4 Rac8 26. h5 Be8 27. a3 Qc6 28. Qe2 b6 29. Ne4 Bf7 30. c3 Bb3 31. Rxd8+ Rxd8 32. h6 gxh6 33. Qe3 Kg7 34. Ng3 Be6 35. Nh5+ Kg6 36. Nxf6 Kxf6 37. Qxh6+ Ke7 38. Qg7+ Bf7 39. Rxe5+ Kd6 40. Qf6+ Kc7 41. Qxf7+ Rd7 42. Re7 |
| ECO B79 in 1990 play it! de jong p defeats black's bohm h in 45 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. Bc4 Bd7 10. O-O-O Qa5 11. Bb3 Rfc8 12. h4 Ne5 13. h5 Nc4 14. Bxc4 Rxc4 15. hxg6 fxg6 16. Nb3 Qc7 17. e5 dxe5 18. Nd5 Nxd5 19. Qxd5+ e6 20. Qxd7 Rxc2+ 21. Kb1 Qxd7 22. Rxd7 Rxg2 23. Rxb7 |
| ECO B90 in 1992 play it! de jong p defeats black's de weerd f in 57 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 Be7 8. Qd2 O-O 9. O-O-O Nc6 10. g4 Nxd4 11. Bxd4 e5 12. Be3 b5 13. g5 Ne8 14. h4 Be6 15. h5 f5 16. exf5 Bxf5 17. Bh3 Nc7 18. Nd5 Nxd5 19. Qxd5+ Kh8 20. Rdg1 Rc8 21. Bxf5 Rxf5 22. g6 Qg8 23. Qxg8+ Rxg8 24. h6 Rxf3 25. gxh7 Rxe3 26. hxg8=Q+ Kxg8 27. Rxg7+ Kf8 28. Rf1+ Ke8 29. h7 |
| ECO B23 in 1990 play it! de jong p defeats black's van vucht s by checkmate in 57 moves | 1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 Nge7 5. Bb5 a6 6. Bxc6 Nxc6 7. O-O Be7 8. d3 O-O 9. Qe1 d5 10. Ne2 dxe4 11. dxe4 e5 12. fxe5 Bg4 13. Qg3 Bxf3 14. gxf3 Re8 15. Bh6 Bf8 16. Rad1 Qe7 17. f4 Kh8 18. Bg5 Qe6 19. Rd5 f5 20. c4 Nb4 21. Qh3 fxe4 22. f5 Qg8 23. Nf4 h6 24. Rd7 Qxc4 25. b3 Qb5 26. f6 Qxd7 27. Qxd7 hxg5 28. f7 Red8 29. Qh3# |
| ECO B29 in 1985 play it! de jong p defeats black's pfeiffer e in 45 moves | 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Nxd5 exd5 6. d4 Nc6 7. dxc5 Bxc5 8. Qxd5 Qb6 9. Bc4 Bxf2+ 10. Ke2 O-O 11. Rf1 Bc5 12. Ng5 Nd4+ 13. Kd1 Ne6 14. Ne4 d6 15. exd6 Rd8 16. Qh5 Bxd6 17. Bd3 Nf8 18. Qxf7+ Kh8 19. Qh5 Qd4 20. h3 g6 21. Qe2 Bc5 22. Bg5 Kg8 23. Bxd8 |
| ECO B32 in 1990 play it! de jong p defeats black's erich j in 61 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be7 7. N1c3 a6 8. Na3 Nf6 9. Be2 O-O 10. O-O Nd4 11. Nc2 Nxe2+ 12. Qxe2 h6 13. b3 Bd7 14. f3 Rc8 15. Ne3 Nh5 16. Ned5 f5 17. Nxe7+ Qxe7 18. exf5 Rxf5 19. g4 Nf4 20. Bxf4 Rxf4 21. Nd5 Qg5 22. Nxf4 Qxf4 23. Rad1 Qf6 24. Qd2 Rc6 25. h3 Be8 26. f4 Qe7 27. Rfe1 Kh7 28. Qe3 Rc5 29. Qd3+ Bg6 30. f5 Be8 31. f6+ |
| ECO B54 in 1988 play it! de jong p defeats black's van beek d by checkmate in 109 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 a6 7. Qd2 Nf6 8. f3 Bd7 9. Bc4 Nc6 10. O-O-O Rc8 11. Bb3 Na5 12. g4 Nxb3+ 13. Nxb3 Be6 14. g5 Nh5 15. Bd4 O-O 16. Bxg7 Nxg7 17. h4 Nh5 18. Nd5 Bxd5 19. exd5 Qd7 20. Rhe1 Rc7 21. Re4 Rfc8 22. Nd4 Qa4 23. Kb1 Qc4 24. Nf5 gxf5 25. Rxc4 Rxc4 26. Qd3 Rxh4 27. Qxf5 Rc7 28. Re1 Nf4 29. b3 b5 30. Re4 Rh1+ 31. Kb2 Ng6 32. a4 Rh2 33. Rb4 Rc5 34. axb5 e6 35. Qd3 Ne5 36. Qd1 Rcxc2+ 37. Kb1 Rb2+ 38. Kc1 Ra2 39. Ra4 Rac2+ 40. Qxc2 Rxc2+ 41. Kxc2 axb5 42. Ra8+ Kg7 43. dxe6 fxe6 44. Rb8 Nxf3 45. Kd3 Nxg5 46. Rxb5 Kf6 47. b4 h5 48. Ra5 h4 49. b5 h3 50. b6 h2 51. Ra1 Nh3 52. b7 Ng1 53. b8=Q h1=Q 54. Qd8+ Ke5 55. Qg5# |
| ECO B93 in 1985 play it! de jong p defeats black's leibbrand h in 55 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5 7. Nf3 Qc7 8. a4 Be7 9. Bd3 O-O 10. O-O Nbd7 11. Kh1 b6 12. fxe5 dxe5 13. Qe1 Bb7 14. Nh4 Rfe8 15. Nf5 Bf8 16. Qg3 Kh8 17. Bg5 Rac8 18. Rf3 Re6 19. Qh4 Nc5 20. Rh3 Ncd7 21. Rf1 h5 22. Ng3 g6 23. Bxf6+ Nxf6 24. Rxf6 Be7 25. Nxh5 Kg8 26. Ng7 Kxg7 27. Qh6+ Kxf6 28. Rf3+ |
| ECO B23 in 1990 play it! de jong p defeats black's lucas f in 45 moves | 1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Bb5 Nge7 5. Nf3 a6 6. Bxc6 Nxc6 7. O-O Be7 8. d3 d5 9. Qe1 d4 10. Nd1 Nb4 11. Qf2 b5 12. Qg3 g6 13. Ne5 Qc7 14. a3 Nc6 15. Nf2 h5 16. Nh3 Bf6 17. Ng5 Nxe5 18. fxe5 Bxe5 19. Bf4 Bxf4 20. Rxf4 O-O 21. Raf1 Ra7 22. Nxf7 Rxf7 23. Qxg6+ |
| ECO B98 in 1982 play it! de jong p defeats black's pardoen t in 87 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Nc6 9. Nxc6 bxc6 10. Bxf6 Bxf6 11. e5 dxe5 12. fxe5 Bxe5 13. Qxc6+ Bd7 14. Qf3 Qc8 15. Bd3 Bxc3+ 16. bxc3 Qxc3+ 17. Ke2 Rb8 18. Rhf1 Qe5+ 19. Kd2 Qg5+ 20. Ke2 f6 21. Rab1 Ke7 22. Qe4 Qc5 23. Rxb8 Rxb8 24. Qxh7 Qe5+ 25. Qe4 Qxe4+ 26. Bxe4 Bb5+ 27. Bd3 Bxd3+ 28. Kxd3 Rb2 29. a4 Rb4 30. Ra1 e5 31. Ra3 Kd6 32. Kc3 Kc5 33. Kd3 Rd4+ 34. Ke2 Kb4 35. Rg3 g5 36. c3+ Kxa4 37. cxd4 exd4 38. Rf3 Kb4 39. Rxf6 a5 40. Kd3 a4 41. Kxd4 a3 42. Ra6 Kb3 43. Rxa3+ Kxa3 44. Ke5 |
| ECO B46 in 1990 play it! de jong p defeats black's van vuure j in 99 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Nxc6 bxc6 7. Bd3 d5 8. O-O Nf6 9. e5 Nd7 10. Re1 Qc7 11. f4 Be7 12. Qg4 g6 13. Be3 c5 14. Bf2 c4 15. Bf1 h5 16. Qh3 Bc5 17. Nd1 Bxf2+ 18. Nxf2 Bb7 19. b3 a5 20. Rad1 Ba6 21. Rd4 cxb3 22. cxb3 Bxf1 23. Rxf1 Rc8 24. Rfd1 Kf8 25. Qh4 Kg7 26. h3 Qb6 27. Kh2 Rc2 28. Ne4 Rb8 29. f5 Qc7 30. fxe6 Qxe5+ 31. Ng3 Qxe6 32. Rxd5 Rxa2 33. Rxd7 Rxb3 34. Qd4+ Qf6 35. Rxf7+ Kxf7 36. Rf1 Qxf1 37. Nxf1 Rbb2 38. Ne3 Rd2 39. Qf4+ Kg7 40. Qe5+ Kf7 41. Qg5 a4 42. Kg3 a3 43. Qf4+ Kg7 44. Kh4 Rf2 45. Qe5+ Kf7 46. Nc4 Rae2 47. Qc7+ Re7 48. Ne5+ Ke6 49. Qc6+ Kxe5 50. Qc5+ |
| ECO B33 in 1987 play it! de jong p defeats black's van der velden e in 52 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 b5 10. Nd5 f5 11. exf5 Bxf5 12. c3 Bg7 13. Qf3 Bd7 14. Nc2 O-O 15. Bd3 f5 16. Qh5 e4 17. Be2 f4 18. Bg4 Ne5 19. Bxd7 Nd3+ 20. Kf1 Qxd7 21. Qh4 Rae8 22. Ne1 Nxb2 23. Nxf4 Bxc3 24. Ne2 Bxe1 25. Rxe1 Nd3 26. Qg5+ Kh8 |
| ECO B41 in 1990 play it! de jong p defeats black's van putten h in 63 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 a6 7. Qd2 Be7 8. f3 Nc6 9. O-O-O O-O 10. g4 Nxd4 11. Bxd4 Nd7 12. h4 b5 13. g5 b4 14. Ne2 Ne5 15. f4 Qa5 16. Kb1 Nc6 17. Bg2 e5 18. Bf2 Be6 19. b3 Bg4 20. f5 Na7 21. Bxa7 Rxa7 22. Rhf1 d5 23. exd5 Bc5 24. f6 Bxe2 25. Qxe2 Bd4 26. fxg7 Rc8 27. Be4 Kxg7 28. Qh5 Rh8 29. Qh6+ Kg8 30. Rxd4 exd4 31. h5 Re7 32. Qf6 |
| ECO B76 in 1981 play it! de jong p defeats black's tak m in 51 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Bc4 Nc6 9. Qd2 Bd7 10. Bb3 Qa5 11. O-O-O Rfc8 12. h4 Ne5 13. Kb1 Nc4 14. Bxc4 Rxc4 15. Nb3 Qa6 16. Bh6 Bh8 17. h5 Rxc3 18. bxc3 Be6 19. hxg6 hxg6 20. Be3 Rc8 21. Bd4 Bg7 22. g4 Bxg4 23. Bxf6 Bxf3 24. Bxg7 Bxh1 25. Qh6 f6 26. Rxh1 |