| ECO B41 in 2003 play it! de jong migchiel defeats black's nagel yvette in 101 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd2 Nc6 7. Nxc6 dxc6 8. e5 Nd7 9. Qg4 Qa5 10. f4 O-O 11. a3 f5 12. exf6 Nxf6 13. Qd1 Bxc3 14. Bxc3 Qd5 15. Qd4 c5 16. Qe5 Bd7 17. Rd1 Qxe5+ 18. Bxe5 Bc6 19. Bc4 Nd5 20. Bxd5 exd5 21. c3 Rae8 22. O-O Re6 23. Rf3 g6 24. Rg3 Rf5 25. h4 Kf7 26. Rdd3 h6 27. Rge3 Ke7 28. g4 Rf7 29. Kh2 Kd7 30. g5 hxg5 31. hxg5 Ree7 32. Rh3 Rh7 33. Rh6 Ke6 34. Rdh3 Rxh6 35. gxh6 Rh7 36. Bg7 Kf5 37. Kg3 Ke4 38. Rh2 d4 39. cxd4 cxd4 40. Kg4 Ke3 41. Rh3+ Ke4 42. Kg5 Be8 43. f5 gxf5 44. Rh4+ f4 45. Rxf4+ Kd5 46. Rxd4+ Kc6 47. Rf4 Kd5 48. Rf8 Ba4 49. Rc8 Bb5 50. Rc7 Ba6 51. Kg6 |
| ECO B32 in 2004 play it! de jong migchiel defeats black's bark eric in 45 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Nf6 6. Nc3 e6 7. Bd3 a6 8. O-O d6 9. Be3 Qc7 10. a4 b6 11. f4 Be7 12. Qf3 O-O 13. g4 d5 14. e5 Nd7 15. Qh3 g6 16. Rf3 Bb7 17. Qh6 Rfe8 18. Rh3 Nf8 19. Rf1 d4 20. Ne4 Qd8 21. g5 Nxe5 22. Bxd4 Bxe4 23. Bxe5 |
| ECO B55 in 2001 play it! de jong migchiel defeats black's nemet ivan in 95 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 a6 6. c4 e6 7. Nc3 Be7 8. Be2 O-O 9. O-O Nbd7 10. Be3 d5 11. cxd5 exd5 12. exd5 Nb6 13. Bf2 Nbxd5 14. Nxd5 Nxd5 15. Bc4 Bf6 16. Qb3 Bxd4 17. Bxd5 Bxf2+ 18. Rxf2 a5 19. Rd1 Qf6 20. Rfd2 h5 21. Qc3 Qe7 22. Rd4 Bf5 23. Re1 Qf6 24. Bxb7 Rab8 25. Be4 Rfc8 26. Qd2 a4 27. Kh1 Be6 28. a3 h4 29. h3 Rb3 30. Re3 Rc1+ 31. Qxc1 Qxd4 32. Re2 Rb8 33. Bb1 Rd8 34. Kh2 Qd6+ 35. f4 Rc8 36. Qd2 Qb8 37. Re5 Rc4 38. Re4 Rc5 39. Rxa4 Qc7 40. Rb4 g6 41. Be4 Rc1 42. Rd4 g5 43. Rd8+ Kg7 44. Qd4+ f6 45. Qd6 f5 46. Qf8+ Kg6 47. Bxf5+ Bxf5 48. Rd6+ |
| ECO B90 in 2007 play it! de jong migchiel defeats black's wiehagen j in 61 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O Be7 8. Bb3 O-O 9. f4 Qc7 10. f5 e5 11. Nde2 Nbd7 12. Nd5 Nxd5 13. Bxd5 Nf6 14. Nc3 Bd7 15. Bb3 Bc6 16. Bg5 Rac8 17. Bxf6 Bxf6 18. Qd2 Rfd8 19. Rad1 Qb6+ 20. Kh1 Qc5 21. Rf3 b5 22. Rd3 Be7 23. Qe2 Rf8 24. a3 a5 25. Nd5 Bg5 26. f6 Bxf6 27. Rc3 Qa7 28. Nxf6+ gxf6 29. Rxd6 Qb7 30. Qg4+ Kh8 31. Qf5 |
| ECO B33 in 2005 play it! de jong migchiel defeats black's kolev atanas in 103 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. a4 a6 8. Na3 Bg4 9. f3 Be6 10. Bc4 Rc8 11. Bg5 Nb4 12. Qe2 Be7 13. Bxf6 Bxf6 14. O-O O-O 15. Rad1 Qc7 16. Bb3 Rfd8 17. Kh1 Qc5 18. Nd5 Nxd5 19. Bxd5 Bxd5 20. Rxd5 Qb4 21. c3 Qxa4 22. Rfd1 Be7 23. Nc2 g6 24. R5d3 Qb5 25. Nb4 Qd7 26. Qd2 Qe6 27. Nd5 Bf8 28. Qc2 Rc6 29. b4 b5 30. Qf2 Ra8 31. Qh4 h6 32. g4 Kg7 33. g5 h5 34. f4 exf4 35. Qxf4 a5 36. bxa5 Rxa5 37. Rf1 Rc4 38. Rdf3 Ra7 39. Qe3 Rb7 40. Nf6 Be7 41. Ne8+ Kf8 42. Nf6 Bd8 43. Qd2 Kg7 44. Qxd6 Qe7 45. Qd5 Rbc7 46. Qxb5 R7c5 47. Qe8 Qxe8 48. Nxe8+ Kf8 49. Nd6 f6 50. Nxc4 Rxc4 51. Rd1 Ba5 52. Rxf6+ |
| ECO B33 in 2006 play it! de jong migchiel defeats black's slingerland fred in 95 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f3 e6 7. Be3 Be7 8. Qd2 a6 9. g4 h6 10. O-O-O Qc7 11. h4 Bd7 12. Qf2 Ne5 13. Nb3 b5 14. Bb6 Qc8 15. Be2 Bc6 16. a3 Nfd7 17. Bd4 Rg8 18. f4 Nc4 19. Rhf1 Qc7 20. Bxc4 bxc4 21. Nd2 Bb7 22. g5 O-O-O 23. Qe2 e5 24. fxe5 Nxe5 25. Bxe5 dxe5 26. Rxf7 hxg5 27. hxg5 Rd7 28. Qg4 Kb8 29. g6 Bc8 30. Qf3 Bb7 31. Qg4 Bc8 32. Qh5 Bb7 33. Rdf1 Rgd8 34. Nf3 Bf6 35. Rxd7 Rxd7 36. Kb1 Ka7 37. Qg4 Bc8 38. Qg1+ Qb6 39. Qxb6+ Kxb6 40. Nd5+ Kc5 41. Nxf6 gxf6 42. Nh4 Kd4 43. Nf5+ Kxe4 44. g7 Rd8 45. Ne7 Be6 46. Rxf6 Bg8 47. Rf8 Rd7 48. Nxg8 |
| ECO B90 in 1999 play it! de jong migchiel defeats black's azadmanesh moosa in 57 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O b5 8. Bb3 Be7 9. f4 O-O 10. e5 dxe5 11. fxe5 Bc5 12. Be3 Nfd7 13. Ne4 Bb7 14. Nxc5 Nxc5 15. Qg4 Nxb3 16. Nxb3 Qd5 17. Na5 Qe4 18. Qg3 Bd5 19. Rf4 Qxc2 20. Rg4 g6 21. Bh6 Rc8 22. Rf1 Qc7 23. Qh4 Qxe5 24. Qe7 f5 25. Rxf5 Rc1+ 26. Bxc1 Qxf5 27. Rf4 Nc6 28. Nxc6 Qc2 29. Qf7+ |
| ECO B32 in 1994 play it! de jong migchiel defeats black's agergaard l in 105 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qc7 Nge7 9. Nc3 O-O 10. Qb6 Nd4 11. Qxf6 gxf6 12. Bd3 b5 13. Bh6 Re8 14. h4 d6 15. f4 b4 16. Ne2 Nxe2 17. Kxe2 exf4 18. Bxf4 d5 19. Kf3 Bb7 20. exd5 Bxd5+ 21. Kf2 Ng6 22. Bd2 a5 23. a3 b3 24. cxb3 Bxb3 25. Bc3 Ne5 26. Bf5 Be6 27. Be4 Rab8 28. Rhe1 Red8 29. Kg1 a4 30. Rf1 Ng4 31. Rf4 h5 32. Bc2 Bb3 33. Bxb3 axb3 34. Raf1 Ne3 35. Bxf6 Rd2 36. R1f3 Rxg2+ 37. Kh1 Re2 38. Bd4 Re1+ 39. Kh2 Ng4+ 40. Kg3 f6 41. Bxf6 Rg1+ 42. Kh3 Re8 43. Bd4 Rh1+ 44. Kg3 Rd1 45. Rxb3 Nh6 46. Rf6 Rxd4 47. Rxh6 Re5 48. Rf3 Kg7 49. Rc6 Rg4+ 50. Kh3 Ree4 51. Rg3 Re2 52. Rb6 Re4 53. Rb4 |
| ECO B44 in 1995 play it! de jong migchiel defeats black's langeweg kick in 73 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. g3 Qb6 6. Nb3 Nf6 7. Bg2 d6 8. O-O Be7 9. c4 O-O 10. Nc3 Ne5 11. Qe2 a6 12. Bf4 Qc7 13. Nd2 b6 14. Rac1 Bb7 15. h3 Rac8 16. b3 Qb8 17. Be3 Ned7 18. g4 Qa8 19. g5 Ne8 20. f4 Nc7 21. a4 f5 22. gxf6 Bxf6 23. Rfd1 Rf7 24. Nf3 Ne8 25. Bd4 e5 26. fxe5 dxe5 27. Bf2 Nc5 28. Bxc5 Rxc5 29. b4 Rc8 30. Nd5 Bxd5 31. exd5 Nd6 32. Kh1 Rfc7 33. Nd2 a5 34. Ne4 Rxc4 35. Rxc4 Nxc4 36. Nxf6+ gxf6 37. d6 |
| ECO B56 in 1995 play it! de jong migchiel defeats black's stefansson hanne in 13 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 e6 7. Bg2 |
| ECO B76 in 1994 play it! de jong migchiel defeats black's neufeglise herma in 81 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. O-O-O d5 10. Qe1 e6 11. h4 Qc7 12. exd5 exd5 13. Qd2 Be6 14. Ncb5 Qd7 15. Bh6 Bxh6 16. Qxh6 a6 17. Nc3 Nxd4 18. Rxd4 Rac8 19. Qg5 Qd8 20. h5 Nd7 21. Qd2 Qf6 22. Nxd5 Bxd5 23. Rxd5 Nc5 24. hxg6 fxg6 25. Bc4 Kh8 26. Rd6 Qf4 27. Qxf4 Rxf4 28. b3 b5 29. Be6 Rc7 30. Rhd1 Rf8 31. Bd5 Kg7 32. b4 Na4 33. Bb3 Rfc8 34. Rxa6 Nc3 35. Rd2 Re8 36. Re6 Rce7 37. Rxe7+ Rxe7 38. Kb2 Ne2 39. c4 bxc4 40. Bxc4 Nf4 41. a4 |
| ECO C78 in 1999 play it! de jong migchiel defeats black's markus john raym in 82 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. a4 Bb7 8. d3 d6 9. c3 h6 10. Na3 O-O 11. Bd2 Bxa3 12. Rxa3 d5 13. Bc2 Re8 14. Qe2 d4 15. Rfa1 Qd6 16. Nh4 Ne7 17. c4 g5 18. Nf3 bxc4 19. dxc4 Ng6 20. g3 c5 21. Ba5 Qe6 22. Ne1 Qh3 23. Rb3 Bc6 24. Rb6 Re6 25. f3 g4 26. Bd2 Kh8 27. fxg4 Nxg4 28. Qg2 Qh5 29. h3 Ne3 30. Bxe3 dxe3 31. Bd1 e2 32. Bxe2 Qg5 33. Kh2 Rg8 34. Qf2 Rf6 35. Nf3 Bxe4 36. Rxf6 Qxf6 37. Qe3 Nf4 38. Qxe4 Nxe2 39. Qxe2 e4 40. Nh4 Rb8 41. Rb1 Rd8 |
| ECO C63 in 2003 play it! de jong migchiel defeats black's mostertman conra in 39 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 Nd4 5. Bc4 Nf6 6. d3 d6 7. Nxd4 exd4 8. Nd5 c6 9. Nxf6+ Qxf6 10. O-O fxe4 11. dxe4 Bd7 12. b4 O-O-O 13. Bb2 c5 14. Qd3 Re8 15. c3 dxc3 16. Bxc3 Qd8 17. Rab1 Be7 18. bxc5 dxc5 19. Rxb7 Bc6 20. Rxa7 |
| ECO C78 in 2006 play it! de jong migchiel defeats black's van der kaap jos in 129 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. d3 O-O 8. a4 Rb8 9. axb5 axb5 10. Nc3 d6 11. h3 Be6 12. Nd5 Nd7 13. Be3 Bf6 14. c3 Ne7 15. Nxf6+ Nxf6 16. Bc2 Ng6 17. d4 Qe7 18. d5 Bd7 19. Ra7 Rfc8 20. Nd2 Qf8 21. Qe2 Ra8 22. Rxa8 Rxa8 23. Bd3 Qe8 24. c4 bxc4 25. Nxc4 Qb8 26. Rc1 h6 27. Kh2 Ra7 28. g3 c6 29. Bb1 Ra1 30. Nb6 c5 31. Nxd7 Nxd7 32. Bd3 Rxc1 33. Bxc1 Qb4 34. Qd2 Qxd2 35. Bxd2 Kf8 36. h4 Nf6 37. Kh3 Ke7 38. f3 Nh5 39. b3 Kd8 40. Ba5+ Ke7 41. Ba6 Nf6 42. Kg2 Nf8 43. Bd2 Ng6 44. Bc8 Kd8 45. Bf5 Ne7 46. Bh3 Ne8 47. Ba5+ Nc7 48. f4 f6 49. fxe5 fxe5 50. Be6 Nc8 51. Kf3 Na7 52. Kg4 Nb5 53. Kh5 Ke7 54. Kg6 Nxe6 55. dxe6 Nd4 56. Kxg7 Nxb3 57. Bd8+ Kxe6 58. Kxh6 c4 59. Kg6 d5 60. exd5+ Kxd5 61. h5 e4 62. Bg5 Kd4 63. h6 e3 64. h7 e2 65. h8=Q+ |
| ECO C67 in 1999 play it! de jong migchiel defeats black's jonkman harmen in 105 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Ne4 8. Qe2 Bf5 9. Rd1 Qc8 10. Rd4 Nc5 11. Nh4 Bg6 12. Nc3 Be7 13. Nxg6 hxg6 14. b4 Ne6 15. Rg4 a5 16. b5 Bb4 17. Bb2 Bxc3 18. Bxc3 c5 19. a4 Ke7 20. Qe4 b6 21. Rg3 Rb8 22. Re1 Qb7 23. Qg4 Rbd8 24. f4 Rh5 25. Rf3 Rdh8 26. h3 Rf5 27. Rff1 Qd5 28. Re2 Qc4 29. Bd2 Qxa4 30. c3 Qxb5 31. Qf3 Rfh5 32. Qe4 Qa6 33. Ref2 Qa8 34. Qc2 Qc6 35. f5 gxf5 36. Rxf5 Rxf5 37. Qxf5 Rf8 38. Bg5+ Kd7 39. Rd1+ Kc8 40. Be7 Qa4 41. Rd2 Re8 42. Qxf7 Qc6 43. h4 b5 44. h5 b4 45. c4 a4 46. Bh4 a3 47. Ra2 Rf8 48. Qg6 Rf4 49. Bf6 gxf6 50. h6 fxe5 51. h7 Rf8 52. Rf2 Nf4 53. Qxc6 |
| ECO C74 in 2006 play it! de jong migchiel defeats black's van ruitenburg j in 81 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. O-O Bd3 8. Re1 Be7 9. Bc2 Bxc2 10. Qxc2 Qd7 11. d4 exd4 12. cxd4 Nf6 13. Nc3 O-O 14. d5 Nb4 15. Qb3 a5 16. Bg5 Kh8 17. Rad1 c6 18. dxc6 Nxc6 19. Na4 Rae8 20. Nc5 Qf5 21. Ne6 Rf7 22. Qxb7 Ne5 23. Nfd4 Qg6 24. f4 Ng8 25. Qb5 Bxg5 26. Qxe8 Bh4 27. Re2 Ng4 28. Nd8 Bxd8 29. Qxd8 Rxf4 30. Qh4 d5 31. Qg3 Qh6 32. Ne6 Rb4 33. h3 N4f6 34. Nd8 Qh5 35. Qg5 h6 36. Qxh5 Nxh5 37. Nc6 Rb5 38. Rc2 Ngf6 39. a4 Rb3 40. Nxa5 Rg3 41. Nc6 |
| ECO C01 in 2000 play it! de jong migchiel defeats black's archangelsky mik in 133 moves | 1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 c5 6. Ne2 Nc6 7. Be3 Nd5 8. Bxd5 Qxd5 9. Nbc3 Qd8 10. dxc5 Qxd1+ 11. Rxd1 Bd7 12. Nb5 O-O-O 13. c3 e5 14. O-O Be7 15. Nd6+ Bxd6 16. cxd6 Be6 17. b3 b6 18. Rd2 Rd7 19. c4 Kb7 20. Nc3 Rc8 21. Rfd1 f5 22. f4 e4 23. Nb5 Nb4 24. Nc7 Bg8 25. c5 bxc5 26. Bxc5 Nd3 27. b4 Nxf4 28. Rf1 Ne6 29. Nxe6 Bxe6 30. g4 g6 31. g5 Rf8 32. Rf4 Rc8 33. Kf2 Rc6 34. Ke3 Ra6 35. Rff2 Ra3+ 36. Kf4 Bc4 37. b5 Rd3 38. Rxd3 Bxd3 39. Rb2 Rd8 40. b6 a6 41. Ke5 Bb5 42. Be3 Bc6 43. Rc2 Re8+ 44. Kf6 Rd8 45. Rd2 Bb5 46. h4 Rd7 47. Ke6 f4 48. Bxf4 Kxb6 49. Rb2 Kc6 50. Rc2+ Kb7 51. Rc5 Bc6 52. Rc3 Bb5 53. Be5 Kb6 54. Re3 Bc6 55. Rb3+ Kc5 56. Rc3+ Kb6 57. Bd4+ Kb7 58. Bf6 Bb5 59. Rc5 Bc6 60. Be7 Kb6 61. Re5 Kb7 62. a3 Kb6 63. Kf7 Rb7 64. Kg7 Bd7 65. Rxe4 Kc5 66. Kxh7 Bf5 67. d7+ |
| ECO C01 in 2001 play it! de jong migchiel defeats black's marechal andy in 79 moves | 1. e4 e6 2. d4 d5 3. Bd3 Nf6 4. e5 Nfd7 5. Nf3 c5 6. c3 Nc6 7. O-O Be7 8. Re1 g5 9. Be3 h6 10. h3 Qb6 11. Qd2 c4 12. Be2 Qa5 13. a4 Nb6 14. Qc2 Bd7 15. Nbd2 Nd8 16. b4 Qa6 17. a5 Nc8 18. Nh2 Bb5 19. f4 gxf4 20. Bxf4 Kd7 21. Bh5 Qc6 22. Ng4 Bg5 23. Rf1 Ne7 24. Bxg5 hxg5 25. Bxf7 Kc7 26. Bg6 b6 27. Rf6 bxa5 28. bxa5 Rg8 29. Bf7 Rg7 30. Raf1 Rb8 31. Qc1 Qd7 32. Qa3 Nf5 33. Bxe6 Nxe6 34. R1xf5 Bc6 35. Nh6 Nd8 36. Rd6 Qe7 37. Rff6 Bd7 38. Qc5+ Kb7 39. Qxd5+ Kc7 40. Qxc4+ |
| ECO C01 in 2003 play it! de jong migchiel defeats black's algra jouke in 71 moves | 1. e4 e6 2. d4 c5 3. d5 exd5 4. exd5 d6 5. Nc3 Nf6 6. Bb5+ Bd7 7. a4 Be7 8. Nf3 O-O 9. O-O Na6 10. Bf4 Nc7 11. Bxd7 Qxd7 12. Qd3 b6 13. Nd2 a6 14. Nc4 Rab8 15. Rfe1 Rfe8 16. a5 b5 17. Nb6 Qd8 18. b4 cxb4 19. Na2 Rxb6 20. axb6 Ncxd5 21. Bd2 Qxb6 22. Nxb4 Nxb4 23. Bxb4 Ng4 24. Qg3 Ne5 25. Qe3 Qb7 26. Qa3 Ra8 27. Rxe5 dxe5 28. Bxe7 Qc6 29. c3 Rc8 30. Bb4 Ra8 31. Qb2 Qd5 32. Qe2 f6 33. h3 Qc6 34. Qa2+ Kh8 35. Qf7 Qc8 36. Rxa6 |
| ECO B07 in 1992 play it! de jong migchiel defeats black's eppinga roland in 57 moves | 1. e4 d6 2. d4 g6 3. c4 Bg7 4. Nc3 Nf6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. cxd5 Bg4 10. O-O Re8 11. h3 Bxf3 12. Bxf3 b5 13. e5 Nfd7 14. e6 Bxc3 15. bxc3 Nf6 16. f5 Kg7 17. exf7 Kxf7 18. fxg6+ hxg6 19. Bg4 Kg7 20. Bg5 Rf8 21. Qc1 Nbd7 22. Bxd7 Qxd7 23. Rxf6 Rxf6 24. Bxf6+ Kxf6 25. Qh6 Rc8 26. Rf1+ Ke7 27. Qg5+ Ke8 28. Qxg6+ Kd8 29. Rf8+ |