| ECO B90 in 2006 play it! nijboer friso defeats black's tazbir marcin in 71 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. Qf3 Qc7 10. f5 Nxb3 11. axb3 e5 12. Nde2 b5 13. Bg5 b4 14. Nd1 Nd7 15. Ne3 Bb7 16. Rd1 Nb6 17. f6 g6 18. O-O h6 19. Bh4 h5 20. c3 Qc6 21. Nd5 Nxd5 22. exd5 Qd7 23. Bg5 h4 24. h3 Bh6 25. Bxh6 Rxh6 26. Qe3 Rh5 27. cxb4 Qb5 28. Rf4 Bc8 29. Nc3 Qb8 30. Rc4 Bd7 31. Ne4 Bb5 32. Rc6 Bxc6 33. dxc6 Qc7 34. Rxd6 Rb8 35. Qc5 Rb5 36. Re6+ |
| ECO B40 in 2003 play it! nijboer friso defeats black's kuipers eelco in 63 moves | 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Qc7 6. Be2 a6 7. O-O Nf6 8. Kh1 d6 9. f4 Be7 10. Be3 O-O 11. Qe1 Bd7 12. Rd1 Rac8 13. Qg3 Nxd4 14. Bxd4 Bc6 15. Rfe1 b5 16. a3 g6 17. Bf3 Nd7 18. f5 e5 19. Be3 a5 20. Bh6 Rfe8 21. Bg4 Bf8 22. Bxf8 Rxf8 23. Qh4 b4 24. axb4 axb4 25. Nd5 Bxd5 26. Rxd5 Qd8 27. Qxd8 Rcxd8 28. Rxd6 Nc5 29. Rc6 Na4 30. h4 b3 31. cxb3 Nxb2 32. h5 |
| ECO B66 in 2003 play it! nijboer friso defeats black's werle jan in 107 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 h6 9. Be3 Be7 10. f4 Nxd4 11. Bxd4 b5 12. Qe3 Qc7 13. e5 dxe5 14. fxe5 Nd7 15. Ne4 Bb7 16. Nd6+ Qxd6 17. exd6 Bg5 18. Qxg5 hxg5 19. Bxg7 Rh4 20. Bc3 Rc8 21. h3 Bd5 22. Rh2 Bxa2 23. g3 Ra4 24. h4 gxh4 25. Rxh4 Rxh4 26. gxh4 Bc4 27. Bg2 f6 28. Bb7 Rb8 29. Bf3 b4 30. Bh5+ Kf8 31. Bd2 Kg7 32. Rg1+ Kh7 33. Rg4 Ne5 34. Rf4 Kg7 35. b3 Bxb3 36. Rxb4 Rxb4 37. Bxb4 Ba4 38. Be2 Bb5 39. c4 Bc6 40. Kd2 Ng6 41. Bf3 Bd7 42. c5 Ne5 43. Be2 Nc6 44. Bc3 Bc8 45. Bg4 Kg6 46. Kc2 Bd7 47. Kb3 Nb8 48. Bf3 Bb5 49. Kb4 e5 50. Ka5 Kf5 51. h5 Ke6 52. h6 Kf7 53. Be4 Kg8 54. Bf5 |
| ECO B38 in 2000 play it! nijboer friso defeats black's reinderman dimit in 125 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 O-O 8. Be2 d6 9. O-O Bd7 10. Re1 Nxd4 11. Bxd4 Bc6 12. Bd3 a5 13. Qd2 Nd7 14. Bxg7 Kxg7 15. Re3 f6 16. Rd1 Rf7 17. h4 Kh8 18. b3 Ne5 19. Be2 Qb6 20. f4 Nd7 21. Kh2 Rg8 22. Rf1 Rfg7 23. Bg4 f5 24. Bh3 Qc5 25. Nd5 e6 26. Nc7 Nf8 27. Nb5 Bxb5 28. cxb5 Qxb5 29. Rc1 Qb6 30. Rd3 Rd7 31. Qb2+ Rgg7 32. h5 gxh5 33. exf5 exf5 34. Rd5 Rf7 35. Qd2 Qd8 36. Rxd6 Qh4 37. Rd3 h6 38. g3 Qf6 39. Rd6 Rd7 40. Rd1 Rxd6 41. Qxd6 Ne6 42. Qe5 Qxe5 43. fxe5 Ng5 44. Rd8+ Rg8 45. Rd6 h4 46. Rxh6+ Kg7 47. Rb6 hxg3+ 48. Kxg3 Nxh3 49. Rxb7+ Kg6 50. Kxh3 Rd8 51. Ra7 Kg5 52. e6 Re8 53. e7 Kf6 54. Ra6+ Kg5 55. Re6 Kf4 56. Kg2 Rg8+ 57. Kf2 Re8 58. a3 Kg4 59. b4 axb4 60. axb4 Kg5 61. b5 f4 62. b6 Kf5 63. Re1 |
| ECO B32 in 2001 play it! nijboer friso defeats black's ikonnikov vyache in 79 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be7 7. N1c3 a6 8. Na3 Be6 9. Bd3 Bg5 10. Nc2 Bxc1 11. Rxc1 Qg5 12. Ne3 Nge7 13. Ncd5 O-O 14. h4 Qg6 15. Bb1 Rad8 16. O-O Kh8 17. Rc3 f6 18. Nxe7 Nxe7 19. Rd3 Nc8 20. c5 Qe8 21. cxd6 Qc6 22. d7 Rxd7 23. Rxd7 Qxd7 24. Qxd7 Bxd7 25. Rd1 Bc6 26. Nc4 Bb5 27. Na5 b6 28. Nb7 g6 29. Bd3 Bxd3 30. Rxd3 Rf7 31. Nd8 Re7 32. Nc6 Rc7 33. Nb4 a5 34. Rd8+ Kg7 35. Nd5 Rc1+ 36. Kh2 f5 37. Rd7+ Kh6 38. Nf6 g5 39. exf5 gxh4 40. Ne4 |
| ECO B33 in 2004 play it! nijboer friso defeats black's kuijf marinus in 43 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. O-O Bxd5 13. exd5 Ne7 14. Qh5 e4 15. Be2 Bg7 16. c3 b4 17. cxb4 Bxb2 18. Rab1 Bxa3 19. Rb3 Bxb4 20. Rxb4 Nxd5 21. Bc4 Qa5 22. Rb7 |
| ECO B97 in 1992 play it! nijboer friso defeats black's de boer gert jan in 105 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Be7 9. Be2 Nbd7 10. Qd3 Qc7 11. Bf3 Rb8 12. h4 b5 13. g4 b4 14. Ne2 a5 15. Nbd4 Nc5 16. Qe3 Ncxe4 17. Bxe4 Nxe4 18. Bxe7 Kxe7 19. Qxe4 Bb7 20. Qe3 Bxh1 21. f5 e5 22. f6+ Kd7 23. fxg7 exd4 24. gxh8=Q dxe3 25. Qxh7 Qc4 26. Rd1 Rb5 27. Nd4 Re5 28. b3 Qc3+ 29. Ke2 Bd5 30. h5 Qc8 31. Rd3 Qd8 32. Rxe3 Rxe3+ 33. Kxe3 Qg5+ 34. Kd3 Qxg4 35. Qf5+ Qxf5+ 36. Nxf5 Ke6 37. Ne3 Bf3 38. h6 Kf6 39. Nc4 Kg6 40. Nxd6 f6 41. Nc4 Kxh6 42. Nxa5 Kg5 43. Nc4 Bd5 44. Ne3 Be6 45. c4 bxc3 46. Kxc3 Kf4 47. Kd4 f5 48. b4 Bxa2 49. b5 Be6 50. Nd5+ Kg4 51. Ne7 f4 52. b6 f3 53. Ke3 |
| ECO B38 in 1999 play it! nijboer friso defeats black's reeh oliver in 81 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 O-O 8. Be2 d6 9. O-O a5 10. Ndb5 a4 11. Kh1 Bd7 12. f4 h5 13. Rc1 Nb8 14. c5 Bc6 15. cxd6 a3 16. e5 Ng4 17. Bxg4 axb2 18. Rb1 hxg4 19. Qxg4 exd6 20. Nxd6 Qd7 21. Qg3 Ra3 22. Bc5 Ra5 23. Bb4 Ra8 24. Rxb2 Na6 25. Ba3 Nc7 26. Bc5 Nd5 27. Nce4 Ra5 28. Nc4 Rxc5 29. Nxc5 Qc7 30. Nd6 Qa5 31. Nce4 Ne7 32. Ng5 Qd5 33. Qh4 Ra8 34. Qf2 f6 35. Rd2 Qa5 36. Ne6 Nd5 37. Nxg7 Kxg7 38. f5 g5 39. Ne4 Nf4 40. exf6+ Kh6 41. h4 |
| ECO B42 in 1989 play it! nijboer friso defeats black's goldstern in 59 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O d6 7. f4 g6 8. Nf3 Bg7 9. Qe1 Nc6 10. a4 O-O 11. Nc3 Nd7 12. Be3 Re8 13. Rd1 Qa5 14. Qh4 Qb4 15. f5 gxf5 16. Bh6 Bf6 17. Qg3+ Kh8 18. exf5 Rg8 19. Bg5 Qc5+ 20. Kh1 exf5 21. Qh4 Rg6 22. Ne2 Bg7 23. Nf4 Nde5 24. Nxg6+ fxg6 25. Bf6 Be6 26. Ng5 Bg8 27. Ne4 Qb4 28. Bxg7+ Kxg7 29. Qf6+ Kh6 30. Nxd6 |
| ECO B78 in 2003 play it! nijboer friso defeats black's banikas hristos in 117 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. Kb1 Nc4 13. Bxc4 Rxc4 14. g4 Qb8 15. h4 Rfc8 16. h5 Rxc3 17. bxc3 Qc7 18. hxg6 hxg6 19. Bh6 Qxc3 20. Qxc3 Rxc3 21. Bxg7 Kxg7 22. Kb2 Rc7 23. Rd3 Be8 24. Rc3 Rxc3 25. Kxc3 e5 26. Nb3 d5 27. g5 Nh7 28. exd5 Nxg5 29. Re1 f6 30. f4 Nf7 31. Nc5 Kf8 32. fxe5 Nxe5 33. Nxb7 g5 34. Nd6 Bg6 35. Nc4 Nd7 36. d6 Bf5 37. Re7 Bh3 38. Kd4 Nb8 39. Rh7 Be6 40. Rh8+ Bg8 41. Ne3 Kg7 42. Rh1 Be6 43. Rb1 Nc6+ 44. Kc5 Ne5 45. Rb7+ Kg6 46. Re7 Bh3 47. Rxa7 Nd7+ 48. Kd4 Be6 49. c4 f5 50. Nd5 f4 51. Ne7+ Kh5 52. c5 f3 53. Ke3 Nxc5 54. Kxf3 g4+ 55. Kf4 Kh4 56. Ng6+ Kh3 57. Rh7+ Kg2 58. Nf8 g3 59. Rg7 |
| ECO B92 in 2005 play it! nijboer friso defeats black's henrichs thomas in 121 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. Kh1 b6 10. f3 Bb7 11. Be3 b5 12. Qe1 Nbd7 13. Rd1 Qc7 14. a3 Rab8 15. Qf2 Bc6 16. Nc1 a5 17. b4 axb4 18. axb4 Rfd8 19. Nb3 Ba8 20. Nxb5 Qxc2 21. Na5 d5 22. Rc1 Qa4 23. Ra1 Qxb4 24. Rfb1 Rxb5 25. Bxb5 Qd6 26. exd5 Nxd5 27. Nc4 Qe6 28. Ra6 Qf5 29. Rba1 Bb7 30. Nd6 Bxd6 31. Rxd6 N5f6 32. Qb2 h5 33. Bxd7 Rxd7 34. Rxd7 Qxd7 35. Qxe5 Qd5 36. Bd4 Qxe5 37. Bxe5 Nd5 38. Rc1 Kh7 39. Rc5 Kg6 40. Bc3 f6 41. Bd2 Kf5 42. Kg1 g5 43. g3 Kg6 44. h3 Kf5 45. Kf2 Ke5 46. Rb5 Bc8 47. Kg2 Kd4 48. Rb8 Bf5 49. Bc1 Kd3 50. Rd8 Be6 51. Rd6 Bf7 52. Kf2 Kc2 53. Be3 Kd3 54. Bc5 Bg8 55. Ba3 Kc3 56. Rc6+ Kd3 57. Bb2 f5 58. Rg6 Bf7 59. Rxg5 f4 60. g4 Ne3 61. Bc1 |
| ECO B90 in 2003 play it! nijboer friso defeats black's kurnosov igor in 73 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. g4 h6 9. Qd2 Nbd7 10. O-O-O Bb7 11. Bd3 Ne5 12. Rhe1 b4 13. Na4 d5 14. exd5 Nxd5 15. f4 Qa5 16. b3 Nxd3+ 17. Qxd3 O-O-O 18. f5 Be7 19. Bf2 Bg5+ 20. Kb1 Kb8 21. fxe6 fxe6 22. h4 Bf6 23. Qg3+ Nc7 24. Nxe6 Rxd1+ 25. Rxd1 Qe5 26. Qxe5 Bxe5 27. Nec5 Bc8 28. Nb6 Bxg4 29. Rg1 Rd8 30. Nd3 Bf5 31. Nxe5 Rd2 32. Nc6+ Kb7 33. Na5+ Ka7 34. Be3 Rxc2 35. Ka1 Re2 36. Nd5+ Kb8 37. Bf4 |
| ECO B57 in 1988 play it! nijboer friso defeats black's winants luc in 63 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 Be7 8. Qe2 a6 9. Bb3 Qc7 10. O-O-O O-O 11. Rhg1 Na5 12. g4 b5 13. g5 Nxb3+ 14. axb3 Nd7 15. f4 b4 16. Nf5 exf5 17. Nd5 Qd8 18. exf5 Re8 19. Bd4 Bf6 20. Qxe8+ Qxe8 21. gxf6 g6 22. Ne7+ Kf8 23. Rd3 Nxf6 24. Bxf6 Qb5 25. Rgd1 Bxf5 26. Rd5 Qe2 27. Nxf5 Rc8 28. R5d2 Qe4 29. Nxd6 Rxc2+ 30. Rxc2 Qxf4+ 31. Kb1 Qxf6 32. Rc8+ |
| ECO B44 in 1995 play it! nijboer friso defeats black's chow albert in 65 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 d5 9. cxd5 exd5 10. exd5 Nb4 11. Be2 Nfxd5 12. O-O Be7 13. Nxd5 Nxd5 14. Bf3 Be6 15. Nc2 O-O 16. Nd4 Bc8 17. Qb3 Bf6 18. Rd1 Qb6 19. Qxd5 Rd8 20. Qe4 Bxd4 21. Be3 Bxe3 22. Qxe3 Qf6 23. Rxd8+ Qxd8 24. Rd1 Qf8 25. Qb6 Be6 26. Bxb7 Rb8 27. b3 a5 28. Qxa5 g6 29. Bf3 h5 30. h3 Kh7 31. Be4 Qh6 32. Qe5 Rc8 33. f4 |
| ECO B90 in 2000 play it! nijboer friso defeats black's van blitterswijk in 73 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Nbd7 9. Qd2 b5 10. a4 b4 11. Nd5 Bxd5 12. exd5 Nb6 13. Bxb6 Qxb6 14. a5 Qb7 15. Bc4 Be7 16. Ra4 Rb8 17. Nc1 Bd8 18. b3 e4 19. Na2 exf3 20. gxf3 Nd7 21. Qe3+ Kf8 22. Kd1 Ne5 23. Re1 g5 24. Qd4 Qc8 25. Nxb4 Qf5 26. Nc6 Rc8 27. Nxe5 dxe5 28. Qd3 Qf6 29. Bxa6 e4 30. fxe4 Ra8 31. d6 Kg7 32. e5 Qf2 33. Bc4 Bxa5 34. Rf1 Qxh2 35. Rxf7+ Kh6 36. Qd5 Rhf8 37. Qe6+ |
| ECO B41 in 1991 play it! nijboer friso defeats black's kuijf hans in 47 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 Be7 7. Bd3 Nbd7 8. O-O Nc5 9. Kh1 Nxd3 10. cxd3 a6 11. Qe1 O-O 12. Be3 e5 13. fxe5 dxe5 14. Nf5 Bxf5 15. Rxf5 Qxd3 16. Bg5 Rfe8 17. Rd1 Qc4 18. Rxe5 Bd6 19. Rxe8+ Nxe8 20. Nd5 Qxa2 21. e5 Bc5 22. Qc3 Qa4 23. Rc1 Qc6 24. Qxc5 |
| ECO B90 in 1998 play it! nijboer friso defeats black's gelpke peter in 83 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Nc6 7. h3 Bd7 8. g4 Nxd4 9. Qxd4 Bc6 10. Bg2 e6 11. O-O-O Qa5 12. Kb1 h6 13. Rhe1 Be7 14. f4 Nd7 15. Nd5 Bxd5 16. exd5 e5 17. Qe4 O-O 18. g5 f5 19. Qf3 hxg5 20. fxg5 Rac8 21. Qh5 Rc4 22. Bf1 Ra4 23. a3 Qd8 24. c4 Qc8 25. Qg6 Qe8 26. Qxe8 Rxe8 27. Bd2 Bd8 28. Ka2 Ba5 29. b4 Bd8 30. Kb3 b5 31. cxb5 axb5 32. Bxb5 Ra7 33. Be3 Rc7 34. Rc1 Re7 35. Rxc7 Bxc7 36. a4 Kf8 37. a5 f4 38. Bf2 Bd8 39. Bxd7 Rxd7 40. a6 Bxg5 41. a7 Rd8 42. b5 |
| ECO B31 in 1994 play it! nijboer friso defeats black's reinderman dimit in 85 moves | 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. Nc3 e5 7. Be3 b6 8. h3 h6 9. O-O Ne7 10. Nh2 O-O 11. Qd2 Kh7 12. Rae1 Be6 13. Ne2 c4 14. d4 exd4 15. Nxd4 Bc8 16. Rd1 Qe8 17. c3 c5 18. Ne2 Nc6 19. Ng3 Ne5 20. f4 Nd3 21. f5 Qe5 22. Rf3 h5 23. Rdf1 Bb7 24. f6 Bh8 25. Bh6 Rfe8 26. Bg7 Bxg7 27. fxg7 f6 28. Rxf6 Qxg3 29. Rf8 Rxf8 30. gxf8=Q Rxf8 31. Rxf8 Bxe4 32. Nf1 Qe5 33. Rf7+ Kg8 34. Rxa7 g5 35. Qe3 Qf4 36. Qxf4 gxf4 37. Nd2 Bd5 38. Rd7 Bf7 39. b3 Nc1 40. Nxc4 Nxa2 41. Nxb6 Nxc3 42. Na4 Ne4 43. Re7 |
| ECO B53 in 2006 play it! nijboer friso defeats black's hoffmann michael in 55 moves | 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Be2 e6 7. O-O Be7 8. f4 Nc6 9. Be3 O-O 10. a4 Qc7 11. Kh1 Bd7 12. Nb3 b6 13. Bf3 Rfe8 14. Qd2 Rab8 15. g4 Bc8 16. g5 Nd7 17. Bg2 Na5 18. Qf2 Nxb3 19. cxb3 Nc5 20. Rad1 Nxb3 21. f5 Bf8 22. Qh4 exf5 23. Nd5 Qc4 24. Rf4 Bb7 25. exf5 Qc2 26. Rg1 Bxd5 27. Bxd5 Re5 28. Qxh7+ |
| ECO B32 in 2001 play it! nijboer friso defeats black's kabatianski alex in 75 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 a6 7. O-O Nf6 8. Kh1 Be7 9. f4 d6 10. Be3 O-O 11. Qe1 Nxd4 12. Bxd4 b5 13. a3 Bb7 14. Qg3 Bc6 15. Rad1 Qb7 16. Bf3 a5 17. Rfe1 b4 18. axb4 axb4 19. e5 Ne8 20. exd6 Bxd6 21. Ne4 g6 22. Nc5 Qc7 23. Bxc6 Qxc6 24. Qf3 Qxf3 25. gxf3 Nc7 26. Nd7 Rfd8 27. Nf6+ Kg7 28. Ne4+ Kg8 29. Bf6 Nd5 30. Bxd8 Rxd8 31. c4 bxc3 32. bxc3 Bc7 33. c4 Nxf4 34. Rxd8+ Bxd8 35. Rd1 Bc7 36. Rd7 Be5 37. Ng5 f6 38. Nf7 |