| ECO A05 in 1989 play it! de jong p defeats black's van goor w in 69 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. h4 Bg4 9. Qb3 Bxf3 10. gxf3 Nc6 11. f4 Na5 12. Qa4 Nxc4 13. Qxc4 Qd6 14. e5 Qd7 15. h5 b5 16. Qe4 Rad8 17. d4 b4 18. cxb4 Qxd4 19. Qxd4 Rxd4 20. a3 Rfd8 21. Be3 Rc4 22. Ke2 Rc2+ 23. Kf3 g5 24. fxg5 Bxe5 25. Rad1 Rxd1 26. Rxd1 Bd6 27. Rd5 Ra2 28. Ra5 a6 29. h6 f6 30. gxf6 exf6 31. Ke4 Kf7 32. Kf5 Ke7 33. Rxa6 Bxb4 34. Re6+ Kd7 35. axb4 |
| ECO A10 in 1986 play it! de jong p defeats black's boshuis w by checkmate in 71 moves | 1. c4 f5 2. Nc3 Nf6 3. d4 e6 4. g3 Be7 5. Bg2 O-O 6. Nf3 Ne4 7. O-O c6 8. Nd2 d5 9. f3 Nxd2 10. Bxd2 dxc4 11. Be3 Nd7 12. Bf2 Nf6 13. e4 Kh8 14. Qe2 f4 15. Qxc4 fxg3 16. hxg3 Nh5 17. f4 Qe8 18. Ne2 Qg6 19. Qd3 Nf6 20. Qf3 Ng4 21. Bh3 Nxf2 22. Rxf2 b6 23. Rh2 Ba6 24. Kf2 c5 25. d5 exd5 26. Bf5 Rxf5 27. exf5 Qxf5 28. Rah1 h6 29. Rh5 Qc2 30. Rxd5 Bb7 31. Rhh5 Bxd5 32. Qxd5 Rd8 33. Qe5 Bf6 34. Rxh6+ Kg8 35. Qe6+ Kf8 36. Rh8# |
| ECO A00 in 1986 play it! de jong p defeats black's van goor w in 65 moves | 1. g3 Nf6 2. Bg2 g6 3. c4 Bg7 4. e4 O-O 5. Nc3 d6 6. Nge2 e5 7. O-O Nbd7 8. d3 c6 9. f4 Nb6 10. fxe5 dxe5 11. Bg5 h6 12. Be3 Be6 13. Kh1 Ng4 14. Bg1 f5 15. c5 Nd7 16. d4 exd4 17. Nxd4 Bc4 18. Re1 Nde5 19. exf5 gxf5 20. Bf1 Bd5+ 21. Nxd5 Qxd5+ 22. Bg2 Qc4 23. Rc1 Qd3 24. Ne6 Rf7 25. Nxg7 Rxg7 26. Rc3 Qxd1 27. Rxd1 Rd7 28. Rxd7 Nxd7 29. Rb3 Re8 30. h3 Ngf6 31. Rxb7 Re1 32. b4 Rb1 33. Bxc6 |
| ECO A00 in 1987 play it! de jong p defeats black's van goor w in 113 moves | 1. g3 Nf6 2. Bg2 g6 3. e4 d6 4. c4 Bg7 5. Nc3 O-O 6. Nge2 e5 7. O-O Nbd7 8. d3 c6 9. h3 a6 10. Rb1 b5 11. Be3 Bb7 12. f4 d5 13. cxd5 cxd5 14. Nxd5 Nxd5 15. exd5 Nf6 16. Bc5 Nxd5 17. Qb3 Re8 18. f5 Qd7 19. fxg6 hxg6 20. Rf2 Bf8 21. d4 Rac8 22. Bxf8 Kxf8 23. Rbf1 f5 24. dxe5 Rxe5 25. Rd1 Qe7 26. Bxd5 Bxd5 27. Rxd5 Rxe2 28. Qd3 Re1+ 29. Kh2 Re3 30. Qd4 Qe6 31. Rd6 Qe5 32. Qxe5 Rxe5 33. Rxg6 a5 34. g4 Kf7 35. Rg5 Ke6 36. gxf5+ Kf6 37. Rg6+ Kf7 38. Ra6 a4 39. Ra7+ Kf6 40. Ra6+ Kg5 41. Rg6+ Kh5 42. Rgg2 Rf8 43. f6 Re6 44. f7 Re7 45. Rf5+ Kh6 46. Rf6+ Kh7 47. Rf4 Re6 48. h4 Re7 49. Rf5 Re6 50. Kh3 Rd6 51. Rh5+ Rh6 52. Rxh6+ Kxh6 53. Rf2 Kh5 54. Rf4 Kg6 55. Kg4 Kh6 56. h5 Kg7 57. Kg5 |
| ECO B34 in 1986 play it! de jong p defeats black's telkamp r by checkmate in 41 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Bc4 Bg7 6. Be3 e6 7. Nb5 Bxb2 8. Nd6+ Ke7 9. Nb5 d6 10. Bf4 e5 11. Bg5+ f6 12. Qd5 Qd7 13. Qf7+ Kd8 14. Bxf6+ Nxf6 15. Qxf6+ Qe7 16. Qxh8+ Kd7 17. N1c3 Bxa1 18. Nd5 Qg5 19. Nf6+ Ke7 20. Qg7+ Kd8 21. Qc7# |
| ECO B40 in 1996 play it! de jong p defeats black's strijkers n in 79 moves | 1. e4 c5 2. Nf3 e6 3. b4 cxb4 4. d4 d5 5. e5 Nc6 6. a3 h5 7. axb4 Bxb4+ 8. c3 Be7 9. Bd3 Nh6 10. O-O Rb8 11. Na3 a6 12. Nc2 b5 13. Nfe1 g6 14. f4 b4 15. cxb4 Nxb4 16. Nxb4 Rxb4 17. Nc2 Rb8 18. Bd2 O-O 19. h3 h4 20. Qe1 Bd7 21. Bxa6 Bb5 22. Bxb5 Rxb5 23. Ra6 Nf5 24. Qa1 Qb8 25. Ne3 Ng3 26. Rd1 Bb4 27. Bxb4 Rxb4 28. Kh2 Qb5 29. Ng4 Rb2 30. Qa3 Kg7 31. Ra7 Rb8 32. Qe7 Rb7 33. Qf6+ Kf8 34. Ra8+ Rb8 35. Qh8+ Ke7 36. Qxh4+ Kd7 37. Ra7+ Kc6 38. Qxg3 Qe2 39. Qc3+ Kb6 40. Qc7+ |
| ECO B78 in 1992 play it! de jong p defeats black's latini c in 63 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 Rc8 11. Bb3 Ne5 12. h4 h5 13. Bh6 Bxh6 14. Qxh6 Rxc3 15. bxc3 Qa5 16. Kb1 Rc8 17. g4 Qxc3 18. Ne2 Qxf3 19. gxh5 Nxh5 20. Rhg1 Be6 21. Bxe6 fxe6 22. Nd4 Qxe4 23. Qxh5 Rc4 24. Qh6 Rxd4 25. Rdf1 Rd1+ 26. Rxd1 Qb4+ 27. Kc1 Qa3+ 28. Kd2 Qb4+ 29. Ke2 Qe4+ 30. Qe3 Qc4+ 31. Kd2 Qb4+ 32. Kc1 |
| ECO B80 in 1996 play it! de jong p defeats black's de groot p in 61 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 a6 7. f3 Qc7 8. Qd2 Be7 9. O-O-O Nc6 10. g4 h6 11. h4 b5 12. Nxc6 Qxc6 13. Bd3 Nd7 14. g5 h5 15. f4 Nc5 16. f5 b4 17. Bxc5 bxc3 18. Qxc3 Qxc5 19. Qxg7 Qe5 20. f6 Rf8 21. Qh6 Rb8 22. fxe7 Qxb2+ 23. Kd2 Kxe7 24. Rb1 Qxb1 25. Rxb1 Rxb1 26. Qxh5 Rh1 27. Qh6 Rg8 28. e5 dxe5 29. Qf6+ Ke8 30. g6 Rf8 31. g7 |
| ECO B78 in 1992 play it! de jong p defeats black's decalonne b in 63 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 Rc8 11. Bb3 Ne5 12. h4 h5 13. Bh6 Bxh6 14. Qxh6 Rxc3 15. bxc3 Qa5 16. Kb1 Qxc3 17. Ne2 Qc5 18. g4 a5 19. Nf4 a4 20. Nxg6 Nxg6 21. Qxg6+ Kh8 22. Qh6+ Kg8 23. Bd5 Rc8 24. Qc1 Be6 25. Bxe6 fxe6 26. Qg5+ Kf7 27. Qxc5 Rxc5 28. g5 Nd7 29. f4 Kg6 30. Rd4 b5 31. Rb4 Nb8 32. c4 |
| ECO B67 in 1986 play it! de jong p defeats black's verboom b in 85 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. Be2 Rc8 10. Nxc6 Bxc6 11. Qe3 Qa5 12. f4 Be7 13. f5 e5 14. Kb1 b5 15. Bxf6 gxf6 16. Nd5 Bxd5 17. Rxd5 Qc7 18. Qb3 Rg8 19. g4 Bf8 20. Rhd1 Be7 21. h3 Kf8 22. a4 bxa4 23. Qxa4 Kg7 24. Ra5 Rb8 25. Rxa6 Qc3 26. Qa2 Rb7 27. Ra3 Qc7 28. Ra4 Rgb8 29. b3 Qc3 30. Bc4 Qxh3 31. Qb2 Qxg4 32. Qc1 Qxe4 33. Rg1+ Kh8 34. Ka2 Rb4 35. Rxb4 Rxb4 36. Bxf7 Rb8 37. Be6 Qd4 38. c3 Ra8+ 39. Kb1 Qf2 40. b4 Qa7 41. Rg2 d5 42. Bxd5 Rd8 43. Qh6 |
| ECO B32 in 1987 play it! de jong p defeats black's van der geer d in 81 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 Bg4 14. Qd3 Qxd3 15. Bxd3 Rd8 16. f3 Bh5 17. Bc4 Nf6 18. Bg5 Kd6 19. Bxf6 gxf6 20. Nd5 Nxf3+ 21. Kf2 Nd4 22. Nxf6 Bg6 23. c3 Nc6 24. Rhe1 Kc5 25. Bf1 Rd2+ 26. Re2 Rhd8 27. Re1 R2d6 28. Ne4+ Bxe4 29. Rxe4 f5 30. Rc4+ Kb6 31. g4 Rd2+ 32. Re2 fxg4 33. Rxg4 Rf8+ 34. Ke1 Rd6 35. Bg2 Re6 36. Rh4 h6 37. Rh5 Rfe8 38. Bd5 Rd6 39. Bxc6 Kxc6 40. Rhxe5 Rxe5 41. Rxe5 |
| ECO B90 in 1981 play it! de jong p defeats black's stephenson d in 71 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Be3 Be7 8. Qe2 O-O 9. O-O-O b5 10. Bd3 Bb7 11. f3 Nbd7 12. g4 Qc7 13. g5 Ne8 14. h4 Nc5 15. h5 Nxd3+ 16. Rxd3 g6 17. hxg6 fxg6 18. Nxe6 Qc4 19. Nxf8 Bxf8 20. Rd2 Qc7 21. Qd3 Qa5 22. Rdh2 b4 23. Qc4+ d5 24. Nxd5 Bxd5 25. Qxd5+ Qxd5 26. exd5 Bg7 27. Rd2 Be5 28. f4 Bd6 29. Rdh2 Ng7 30. Rxh7 Nh5 31. Rd7 Bxf4 32. Bxf4 Nxf4 33. d6 Rf8 34. Re7 Nd5 35. Reh7 Rf5 36. d7 |
| ECO B23 in 1991 play it! de jong p defeats black's van beek d in 77 moves | 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 a6 6. Bxc6 dxc6 7. O-O Nf6 8. d3 Bg4 9. h3 Bxf3 10. Qxf3 Qc7 11. Be3 Nd7 12. a4 Bd4 13. a5 O-O-O 14. e5 g5 15. e6 fxe6 16. fxg5 Rhf8 17. Qe4 e5 18. Rxf8 Rxf8 19. Ne2 Bxe3+ 20. Qxe3 Qd6 21. Ra4 Qe6 22. Ng3 Qg6 23. h4 Qd6 24. Ne4 Qd5 25. Rc4 Rf4 26. g3 Rf7 27. Qe2 b5 28. axb6 Kb7 29. Qg4 Nxb6 30. Nxc5+ Ka7 31. Rc3 Qa2 32. Qe2 Qxb2 33. Ne4 Qc1+ 34. Kg2 Kb7 35. d4 Nd5 36. Nc5+ Kc7 37. Qxe5+ Kb6 38. Qb8+ Ka5 39. Nb3+ |
| ECO B78 in 1992 play it! de jong p defeats black's golziow m in 59 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 Qc7 11. Bb3 Ne5 12. Bh6 Nc4 13. Bxc4 Qxc4 14. h4 b5 15. Bxg7 Kxg7 16. Kb1 e6 17. h5 b4 18. hxg6 fxg6 19. Nce2 e5 20. Nb3 Rac8 21. g4 Be6 22. Ng3 Rf7 23. Qh2 Kg8 24. Rxd6 a5 25. Nf5 a4 26. Nh6+ Kg7 27. Nxf7 Kxf7 28. Nc1 b3 29. cxb3 axb3 30. Nxb3 |
| ECO B41 in 1989 play it! de jong p defeats black's lardenoye b in 43 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 Be7 7. f3 Nc6 8. Qd2 a6 9. O-O-O Rb8 10. g4 Nd7 11. Kb1 O-O 12. f4 Nxd4 13. Bxd4 e5 14. Be3 exf4 15. Bxf4 Ne5 16. h3 b5 17. Nd5 Bb7 18. b3 Re8 19. Bg2 a5 20. Nxe7+ Qxe7 21. Qxd6 Ng6 22. Qxe7 |
| ECO B40 in 1985 play it! de jong p defeats black's miller b in 81 moves | 1. e4 c5 2. Nf3 e6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. f4 Be7 7. Be2 a6 8. a4 Qc7 9. Be3 O-O 10. a5 Nbd7 11. O-O b6 12. axb6 Nxb6 13. Kh1 Bb7 14. Bd3 Nc4 15. Bc1 d5 16. exd5 Nxd5 17. Nxd5 Bxd5 18. b3 Nd6 19. Bb2 Bf6 20. Qe2 Qc5 21. c3 a5 22. Qc2 h6 23. Qe2 Rfe8 24. Qc2 Rec8 25. Qe2 Qb6 26. Bc2 Bxd4 27. cxd4 Bxb3 28. Bd3 Bc4 29. Ba3 Qb5 30. Bxc4 Nxc4 31. Bc5 Rcb8 32. f5 exf5 33. Rxf5 a4 34. h3 a3 35. Raf1 Rb7 36. Bxa3 Qb3 37. Bc5 Ne3 38. R5f3 Nxf1 39. Rxb3 Rxb3 40. Qxf1 Rab8 41. Qf5 |
| ECO B82 in 1986 play it! de jong p defeats black's niens i in 73 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. f4 Be7 7. Be3 Nc6 8. Be2 Bd7 9. Qd2 a6 10. O-O-O b5 11. Bf3 Nxd4 12. Bxd4 Bc6 13. e5 Bxf3 14. exf6 Bxd1 15. fxe7 Qxe7 16. Rxd1 O-O 17. g4 f6 18. f5 Rfe8 19. fxe6 Qxe6 20. g5 f5 21. h4 b4 22. Nb1 Qe4 23. h5 a5 24. h6 g6 25. Bf6 Re6 26. c3 Rc8 27. Qd3 Rc4 28. Kc2 Qxd3+ 29. Rxd3 Rc8 30. Kb3 Rb8 31. Nd2 Rb5 32. c4 Rb8 33. c5 dxc5 34. Rd7 Rbe8 35. Rg7+ Kh8 36. Rxg6+ Rxf6 37. Rxf6 |
| ECO B78 in 1996 play it! de jong p defeats black's de reu p in 53 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 Rc8 11. Bb3 Ne5 12. h4 h5 13. Bh6 Bxh6 14. Qxh6 Rxc3 15. bxc3 Qc7 16. Kb1 Rc8 17. g4 a5 18. g5 Ne8 19. f4 a4 20. Bd5 e6 21. fxe5 dxe5 22. Rhf1 Ng7 23. Rxf7 Kxf7 24. Qh7 exd4 25. Rf1+ Ke7 26. Qxg7+ Kd6 27. Rf7 |
| ECO B20 in 1986 play it! de jong p defeats black's lemmen h in 47 moves | 1. e4 c5 2. Ne2 d6 3. c4 Nc6 4. Nbc3 Nf6 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. f4 Nd4 9. d3 Bg4 10. h3 Bh5 11. g4 Nxg4 12. hxg4 Bxg4 13. Be3 f5 14. Qd2 Rb8 15. Bxd4 cxd4 16. Nd1 e5 17. Nf2 Bxe2 18. Qxe2 exf4 19. Nh3 Bh6 20. Qf2 g5 21. exf5 Qf6 22. Bd5+ Kh8 23. Be6 g4 24. Nxf4 |
| ECO B20 in 1986 play it! de jong p defeats black's van vucht s in 41 moves | 1. e4 c5 2. Ne2 Nc6 3. c4 Nf6 4. Nbc3 e6 5. g3 d5 6. cxd5 exd5 7. exd5 Nxd5 8. Bg2 Ndb4 9. d4 Bf5 10. O-O Nc2 11. d5 Ne5 12. Bf4 Nxa1 13. Bxe5 Nc2 14. Nb5 f6 15. Nc7+ Kf7 16. Bf4 g5 17. d6 gxf4 18. Qd5+ Kg7 19. Qxf5 Qxd6 20. Nxa8 Qd2 21. Nxf4 |