| ECO C60 in 1989 play it! de jong p defeats black's bergman l in 25 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. c3 d5 5. Nxe5 dxe4 6. d4 exd3 7. Qf3 Qd5 8. Qxd5 Nxd5 9. Nxc6 a6 10. Nb4+ c6 11. Nxd5 Bd6 12. Nb6 axb5 13. Nxa8 |
| ECO C77 in 1983 play it! de jong p defeats black's luca a in 27 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. O-O b5 7. Bb3 d6 8. Ng5 d5 9. exd5 Nxd5 10. Nxf7 Kxf7 11. Qf3+ Ke6 12. Re1+ Ne5 13. Bf4 c6 14. Rxe5+ |
| ECO C93 in 1989 play it! de jong p defeats black's fidelity mach c in 83 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 h6 10. d4 Re8 11. Nbd2 Bf8 12. a4 Na5 13. axb5 axb5 14. Bc2 Bd7 15. Nf1 exd4 16. cxd4 Nc4 17. Rxa8 Qxa8 18. Ng3 c5 19. dxc5 dxc5 20. e5 Nd5 21. Bxh6 gxh6 22. Qd3 f5 23. Nxf5 Bxf5 24. Qxf5 Re7 25. Be4 Ncb6 26. Nh4 Qa5 27. Rd1 Nc7 28. Rd8 Qe1+ 29. Kh2 Nd7 30. Ng6 Rf7 31. Qg4 Rg7 32. e6 Qd2 33. Rxd7 Bd6+ 34. f4 Bxf4+ 35. Qxf4 Qxf4+ 36. Nxf4 Nxe6 37. Bd5 Rxd7 38. Bxe6+ Rf7 39. Nd3 Kg7 40. Bxf7 Kxf7 41. Nxc5 Kf6 42. b4 |
| ECO C42 in 1988 play it! de jong p defeats black's spoel c in 129 moves | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Bg4 8. c4 Nf6 9. cxd5 Qxd5 10. Nc3 Qh5 11. Be2 Bd6 12. h3 Bd7 13. Bg5 Bxh3 14. gxh3 Qxh3 15. Ne5 Nxe5 16. dxe5 Bxe5 17. Bf4 Bxf4 18. Qa4+ c6 19. Qxf4 O-O 20. Rfe1 Rfe8 21. Bf3 Rad8 22. Rxe8+ Rxe8 23. Rd1 h5 24. Ne4 Nxe4 25. Bxe4 Qe6 26. Bd3 Qe7 27. Bc4 b5 28. Bb3 c5 29. Bd5 a6 30. Qf5 h4 31. Kg2 Qc7 32. Rh1 Re5 33. Bxf7+ Kf8 34. Qf4 g5 35. Qf6 Qe7 36. Qxe7+ Kxe7 37. Bh5 c4 38. Rd1 a5 39. Bg4 Rc5 40. Kf1 b4 41. Rc1 Kf6 42. Ke2 Ke5 43. Ke3 Rc6 44. Bf3 Rc5 45. Rg1 Kf6 46. Kd4 Rf5 47. Ke3 Rc5 48. Rc1 Ke5 49. Be2 c3 50. bxc3 bxc3 51. Bf3 Rc4 52. Bh1 g4 53. Kd3 Ra4 54. Rc2 Ra3 55. Re2+ Kd6 56. Kd4 g3 57. fxg3 c2 58. Rxc2 Rxg3 59. Be4 Ra3 60. Bd3 h3 61. Rh2 Ra4+ 62. Bc4 Ra3 63. Bf1 Ra4+ 64. Kc3 Ra3+ 65. Kb2 |
| ECO C77 in 1986 play it! de jong p defeats black's richter g in 55 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. O-O b5 7. Bb3 Bc5 8. e5 Ng4 9. c3 O-O 10. cxd4 Be7 11. h3 Nh6 12. Bxh6 gxh6 13. Qd3 Kh8 14. Bc2 f5 15. exf6 Rf7 16. fxe7 Qxe7 17. d5 Nb4 18. Qc3+ Kg8 19. d6 Qxd6 20. Bb3 Nd5 21. Qe5 Bb7 22. Qxd6 cxd6 23. Nc3 Rxf3 24. gxf3 Kh8 25. Bxd5 Bxd5 26. Nxd5 Rf8 27. f4 Rf5 28. Rad1 |
| ECO C77 in 1987 play it! de jong p defeats black's zibret l in 35 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 b5 6. Bb3 Nxd4 7. Bxf7+ Kxf7 8. Nxe5+ Ke8 9. Qxd4 c5 10. Qd3 Bb7 11. Bg5 Be7 12. Nd2 d6 13. Nef3 Qb6 14. c4 Nxe4 15. Nxe4 bxc4 16. Qe2 Bxe4 17. Qxe4 Ra7 18. O-O |
| ECO C77 in 1990 play it! de jong p defeats black's roering e in 59 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. O-O Be7 7. Re1 O-O 8. e5 Ne8 9. c3 d3 10. Qxd3 d6 11. Bc2 g6 12. Bh6 Ng7 13. exd6 Bxd6 14. c4 Bb4 15. Qxd8 Rxd8 16. Bd2 Be6 17. Be4 Bxd2 18. Nbxd2 Rab8 19. Bxc6 bxc6 20. b3 f5 21. Nf1 c5 22. Re5 Rd6 23. Rxc5 Ne8 24. Re1 Kg7 25. Ng5 Bg8 26. Rce5 Nf6 27. Re7+ Kh6 28. Nf7+ Bxf7 29. Rxf7 c6 30. c5 |
| ECO C77 in 1986 play it! de jong p defeats black's buhrs j in 103 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. O-O Be7 7. Re1 b5 8. Bb3 d6 9. e5 dxe5 10. Nxe5 Nxe5 11. Rxe5 O-O 12. Qf3 Bd6 13. Re1 Bg4 14. Qd3 c5 15. c4 dxc3 16. Qxc3 c4 17. Bc2 Qc7 18. h3 Bh5 19. Bg5 Rfe8 20. Bxf6 gxf6 21. Qxf6 Bh2+ 22. Kf1 Be5 23. Qg5+ Bg6 24. Bxg6 hxg6 25. Nc3 Bxc3 26. bxc3 Qh2 27. f3 Kg7 28. Kf2 Qd6 29. Rad1 Qf6 30. Qxf6+ Kxf6 31. Rxe8 Rxe8 32. Rd6+ Re6 33. Rxe6+ Kxe6 34. Ke3 Kd5 35. f4 a5 36. a3 Kc5 37. g4 b4 38. cxb4+ axb4 39. axb4+ Kxb4 40. Kd2 c3+ 41. Kc2 Kc4 42. h4 Kd5 43. Kxc3 Ke6 44. Kd4 f5 45. g5 Kd6 46. Kc4 Ke6 47. Kc5 Ke7 48. Kd5 Kd7 49. Ke5 Ke7 50. h5 gxh5 51. Kxf5 Kf7 52. Ke4 |
| ECO C42 in 1990 play it! de jong p defeats black's ydo p in 43 moves | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Nc3 Nxc3 10. bxc3 Bg4 11. cxd5 cxd5 12. Rb1 Qc7 13. h3 Bh5 14. g4 Bg6 15. Bd2 Na6 16. Nh4 Kh8 17. Nf5 Bh2+ 18. Kg2 Rae8 19. Qf3 Bxf5 20. Qxf5 g6 21. Qf6+ Kg8 22. Bh6 |
| ECO C51 in 1996 play it! de jong p defeats black's trabelsi hi by checkmate in 35 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O dxc3 8. Bxf7+ Kxf7 9. Qd5+ Ke8 10. Qxc5 d6 11. Qxc3 Qf6 12. e5 Nxe5 13. Nxe5 dxe5 14. Re1 e4 15. Rxe4+ Kd8 16. Qc5 Qxa1 17. Bg5+ Nf6 18. Qe7# |
| ECO C42 in 1990 play it! de jong p defeats black's verbeek r in 39 moves | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Nc3 Nxc3 10. bxc3 Bg4 11. cxd5 Bxf3 12. Qxf3 cxd5 13. Rb1 b6 14. Rb5 Nd7 15. Rxd5 Nf6 16. Rf5 Rc8 17. Bg5 Be7 18. Bb1 Ne8 19. Rd5 Qc7 20. Qe4 |
| ECO C51 in 1996 play it! de jong p defeats black's verhoeff p in 61 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 6. d4 d6 7. Qb3 Na5 8. Bxf7+ Kf8 9. Qa4 Kxf7 10. Qxa5 c6 11. Qxd8 Bxd8 12. dxe5 dxe5 13. Nxe5+ Ke6 14. Nd3 Nf6 15. f3 Bb6 16. a4 Rd8 17. Ke2 Kf7 18. Bg5 h6 19. Bh4 g5 20. Bg3 Ba5 21. Ne5+ Kg8 22. Nc4 b6 23. Nxa5 Ba6+ 24. Kf2 bxa5 25. Bc7 Rd3 26. Ra2 Rf8 27. Re1 Rf7 28. Bxa5 Rfd7 29. Rb2 g4 30. e5 Nd5 31. e6 |
| ECO C40 in 1989 play it! de jong p defeats black's breuers f in 45 moves | 1. e4 e5 2. Nf3 f5 3. d4 fxe4 4. Nxe5 Nf6 5. Nc3 d6 6. Nc4 Be7 7. Bg5 O-O 8. Be2 Qe8 9. O-O Be6 10. Ne3 Nbd7 11. f3 Qg6 12. Nxe4 Rf7 13. Bxf6 gxf6 14. Bd3 f5 15. d5 Bxd5 16. Nxd5 fxe4 17. Bxe4 Qg7 18. Nxc7 Rc8 19. Nd5 Nc5 20. Nxe7+ Rxe7 21. c3 Nxe4 22. fxe4 Rxe4 23. Qd5+ |
| ECO C00 in 1989 play it! de jong p defeats black's dekker e in 78 moves | 1. e4 e6 2. Qe2 c5 3. f4 Ne7 4. Nf3 g6 5. g3 Bg7 6. Bg2 O-O 7. c3 d5 8. d3 b6 9. e5 Nbc6 10. Na3 Ba6 11. O-O Rc8 12. Bd2 Nf5 13. g4 Nh4 14. Nxh4 Qxh4 15. g5 h5 16. h3 Nxe5 17. fxe5 Qg3 18. Rf3 Qxe5 19. Qxe5 Bxe5 20. Re1 Bg7 21. Bf4 Rfd8 22. Be5 Bxe5 23. Rxe5 d4 24. c4 Bb7 25. Rf2 Bxg2 26. Kxg2 a6 27. Nb1 b5 28. b3 bxc4 29. bxc4 a5 30. Nd2 Rd7 31. Nb3 Rdc7 32. Nxa5 Ra8 33. Nb3 Rca7 34. Rxc5 Rxa2 35. Nxd4 R8a3 36. Rc8+ Kg7 37. Rd8 h4 38. c5 Ra1 39. Rd7 Rc3 |
| ECO C18 in 1988 play it! de jong p defeats black's knook m in 83 moves | 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxb4 7. Nb5 bxa3+ 8. c3 Ne7 9. Nd6+ Kf8 10. Qf3 Nf5 11. Bxa3 Nxd6 12. Bxd6+ Kg8 13. h4 Nc6 14. Ne2 Qb6 15. Rd1 Bd7 16. h5 h6 17. Rh4 Rc8 18. Rg4 Nb4 19. Bxb4 Bxb4 20. Rd3 Bf8 21. Qf4 Qb1+ 22. Nc1 b5 23. Rf3 Be8 24. Bd3 Qa1 25. Bg6 Rc7 26. g3 b4 27. c4 b3 28. Rxb3 Rxc4 29. Bb1 Qa5+ 30. Kf1 Rb4 31. Rxb4 Qxb4 32. Bd3 Bb5 33. Kg2 Bxd3 34. Nxd3 Qc3 35. Qf3 Be7 36. Rf4 f5 37. exf6 Bxf6 38. Qe2 Qc8 39. Nc5 Kf7 40. Qg4 Rg8 41. Rf3 a5 42. Qg6+ |
| ECO C00 in 1987 play it! de jong p defeats black's langerak d in 51 moves | 1. e4 e6 2. Qe2 c5 3. f4 Nc6 4. Nf3 Nge7 5. g3 d5 6. d3 dxe4 7. dxe4 Bd7 8. Be3 Ng6 9. Nbd2 Qa5 10. c3 Qc7 11. Bg2 Be7 12. O-O O-O 13. e5 b6 14. h4 Rae8 15. Ng5 f6 16. Nxh7 Kxh7 17. Qh5+ Kg8 18. Qxg6 Rd8 19. exf6 Rxf6 20. Qc2 e5 21. Ne4 Rff8 22. Ng5 Bxg5 23. fxg5 Be6 24. Qg6 Bd5 25. Bxd5+ Rxd5 26. Qe6+ |
| ECO C10 in 1988 play it! de jong p defeats black's lesi j in 67 moves | 1. e4 e6 2. d4 d5 3. Nc3 a6 4. Nf3 b5 5. exd5 b4 6. dxe6 Bxe6 7. Ne4 Be7 8. c4 Nf6 9. Nxf6+ Bxf6 10. d5 Bc8 11. Qa4+ Nd7 12. Qxb4 Rb8 13. Qd2 O-O 14. Bd3 Re8+ 15. Kf1 Qe7 16. g3 Nc5 17. Kg2 Bg4 18. Rb1 Bxf3+ 19. Kxf3 Ne4 20. Qc2 Ng5+ 21. Bxg5 Bxg5 22. Bxh7+ Kh8 23. Be4 Qf6+ 24. Kg2 Qd4 25. Bf3 Bf6 26. b3 a5 27. Rbe1 Qc5 28. Qf5 g6 29. Qg4 a4 30. h4 Qd6 31. h5 g5 32. Qf5 axb3 33. Be4 Rxe4 34. Qxe4 |
| ECO C00 in 1987 play it! de jong p defeats black's knook m in 65 moves | 1. e4 e6 2. Qe2 b6 3. f4 Bb7 4. Nf3 Nf6 5. d3 c5 6. g3 Nc6 7. Bg2 Be7 8. O-O O-O 9. c3 Qc8 10. Na3 Na5 11. c4 d6 12. Bd2 Nc6 13. Nc2 Re8 14. h3 Nh5 15. Kh2 f5 16. Ng5 Bxg5 17. fxg5 g6 18. Bc3 Ne5 19. Ne3 Qd8 20. h4 Rf8 21. exf5 Bxg2 22. Kxg2 exf5 23. Nxf5 gxf5 24. Qxh5 Ng4 25. g6 h6 26. Rae1 Qd7 27. Rf4 Rae8 28. Rxg4 Rxe1 29. Qxh6 Re2+ 30. Kg1 Re1+ 31. Bxe1 fxg4 32. Bc3 Rf1+ 33. Kxf1 |
| ECO C18 in 1989 play it! de jong p defeats black's bothof p in 59 moves | 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3 7. Qg4 Ne7 8. Qxg7 Rg8 9. Qxh7 Nbc6 10. Nf3 Qc7 11. Bb5 Bd7 12. Bxc6 Bxc6 13. O-O d4 14. Ng5 O-O-O 15. bxc3 Qxe5 16. cxd4 Qd5 17. Qh3 Rxg5 18. Bxg5 Qxg5 19. Rxa7 Rg8 20. Ra8+ Kc7 21. Rxg8 Nxg8 22. Qg3+ Qxg3 23. fxg3 f5 24. c4 b5 25. c5 Nf6 26. h3 Bd5 27. Ra1 Ne4 28. g4 f4 29. h4 Ng3 30. h5 |
| ECO C01 in 1991 play it! de jong p defeats black's stekelenburg r in 55 moves | 1. e4 e6 2. d4 g6 3. Nc3 Bg7 4. Nf3 Ne7 5. Be2 b6 6. Be3 d5 7. O-O O-O 8. Qd2 Ba6 9. Bxa6 Nxa6 10. Bh6 c5 11. Bxg7 Kxg7 12. Ne5 dxe4 13. Qe2 cxd4 14. Nxe4 Nc5 15. Rad1 f6 16. Nd3 Nxe4 17. Qxe4 Nf5 18. Nf4 Re8 19. Nxe6+ Kg8 20. g4 Nd6 21. Qd5 Qc8 22. Nc7+ Nf7 23. Nxa8 Qxg4+ 24. Qg2 Qc8 25. Rxd4 Qxc2 26. Rd7 Qc8 27. Qd5 Rf8 28. Nc7 |