| ECO B67 in 2003 play it! nijboer friso defeats black's acs peter in 95 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. f4 b5 10. Bxf6 gxf6 11. Kb1 Qb6 12. Nxc6 Bxc6 13. Qe1 Be7 14. f5 Qc5 15. Bd3 b4 16. Ne2 a5 17. fxe6 fxe6 18. Nf4 Qe5 19. Rf1 a4 20. Bc4 Bxe4 21. Nxe6 Rc8 22. Qxe4 Qxe4 23. Bb5+ Qc6 24. Bxc6+ Rxc6 25. Nf4 Kf7 26. Nd5 Rg8 27. g3 Rg4 28. b3 axb3 29. cxb3 Bd8 30. Rf4 Rxf4 31. Nxf4 Bb6 32. Nd5 Bc5 33. Rf1 Ke6 34. Nxf6 d5 35. Nxh7 Be7 36. g4 d4 37. g5 d3 38. g6 d2 39. g7 Rc1+ 40. Rxc1 dxc1=Q+ 41. Kxc1 Kf7 42. Nf8 Kxg7 43. Nd7 Kf7 44. Kc2 Ke6 45. Nb6 Bc5 46. Na4 Bf2 47. Kd3 Kd5 48. Nb2 |
| ECO B40 in 2000 play it! nijboer friso defeats black's hoeksema hendrik in 47 moves | 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Nc6 6. Be2 Nge7 7. O-O Nxd4 8. Qxd4 Nc6 9. Qd3 Be7 10. Bf4 Qa5 11. a3 Ne5 12. Qg3 Bf6 13. Nd5 exd5 14. Bxe5 dxe4 15. Bxf6 gxf6 16. Qg7 Rf8 17. Qxf6 d5 18. Rad1 Be6 19. Bh5 Kd7 20. c4 Qd8 21. Qe5 f5 22. cxd5 Bg8 23. Rc1 Rf6 24. d6 |
| ECO B32 in 2001 play it! nijboer friso defeats black's milutinovic step in 123 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. c4 g6 6. Nc3 Bg7 7. Nc2 Nf6 8. Be2 O-O 9. O-O Qc7 10. f3 a5 11. Be3 Ne5 12. Na3 Bd7 13. Rc1 Nc6 14. Nd5 Qd8 15. Bb6 Qb8 16. Nc7 Ne8 17. Nxa8 Bxb2 18. Nb5 Bxc1 19. Qxc1 Qxa8 20. c5 Nb4 21. cxd6 exd6 22. a4 Nc6 23. Rd1 Be6 24. Qe3 Ne5 25. Bd4 Nc6 26. Bb2 Qd8 27. f4 Qe7 28. Rd2 f5 29. exf5 Rxf5 30. Bg4 Bd7 31. Qxe7 Nxe7 32. Bxf5 Nxf5 33. Kf2 h5 34. Bc3 Bxb5 35. axb5 b6 36. Bd4 Nc7 37. Bxb6 Nxb5 38. Bxa5 Kf7 39. g3 Ke6 40. h3 Nfd4 41. Bb6 Nf5 42. g4 hxg4 43. hxg4 Ne7 44. Kf3 Nc6 45. Rh2 Ne7 46. Rh6 Kd7 47. Rh7 Ke6 48. Bf2 Nc3 49. Bh4 Ncd5 50. Rg7 Nf6 51. Bxf6 Kxf6 52. Rh7 Ke6 53. Rh1 Kf7 54. Ra1 Ke6 55. Ke4 Kf6 56. Ra8 Ke6 57. Ra6 Kd7 58. f5 gxf5+ 59. gxf5 Nc6 60. f6 d5+ 61. Kf5 d4 62. Rxc6 |
| ECO B27 in 2001 play it! nijboer friso defeats black's muhren willem in 91 moves | 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 cxd4 5. Nxd4 Nf6 6. Be3 Nc6 7. Bc4 O-O 8. Bb3 a5 9. O-O a4 10. Nxa4 Nxe4 11. Nb5 d5 12. Bb6 Qd7 13. Nc7 Rxa4 14. Bxa4 Bxb2 15. Qxd5 Bxa1 16. Rxa1 Nc3 17. Qxd7 Bxd7 18. Bb3 Bf5 19. Kf1 Rd8 20. a4 Rd2 21. Be3 Rd7 22. Nb5 Nxb5 23. axb5 Nd4 24. Bxd4 Rxd4 25. Ra7 Rd7 26. b6 Be4 27. f3 Bc6 28. Ke2 Kg7 29. c4 Kf6 30. Ke3 e5 31. h4 Ke7 32. Ra5 f6 33. g3 Rd4 34. Ra8 Rd8 35. Rxd8 Kxd8 36. f4 Ke7 37. c5 exf4+ 38. Kxf4 h6 39. h5 gxh5 40. Kf5 Bd7+ 41. Kg6 h4 42. gxh4 f5 43. Bd5 Bc8 44. Kxh6 Kf6 45. c6 bxc6 46. Bxc6 |
| ECO B33 in 2000 play it! nijboer friso defeats black's reinderman dimit in 105 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. Qh5 Rg8 13. c3 Rxg2 14. Qf3 Rg4 15. exf5 Bxd5 16. Qxd5 Ne7 17. Qb7 Bh6 18. f6 Ng8 19. Qc6+ Kf8 20. Rd1 Rf4 21. Bxh7 Rxf6 22. Bxg8 Kxg8 23. Rg1+ Kf8 24. Rg3 Qc8 25. Qxc8+ Rxc8 26. Nc2 Rc4 27. Nb4 Rh4 28. Nd5 Rf5 29. Rg8+ Kxg8 30. Ne7+ Kh7 31. Nxf5 Rxh2 32. Rxd6 Bc1 33. b3 Rh3 34. Rxa6 Rxc3 35. Nd6 Bb2 36. Nxf7 Rc2 37. Ng5+ Kg7 38. Ne4 b4 39. Kd1 Rc1+ 40. Ke2 Ba3 41. Rd6 Bb2 42. Kf3 Bd4 43. Kg4 Kf7 44. Kf5 Ke7 45. Rd5 Rf1 46. Rb5 Bxf2 47. Rb7+ Kd8 48. Ke6 Bh4 49. Rh7 Rf4 50. Nd6 Rf6+ 51. Kxe5 Bg3+ 52. Kxf6 Be5+ 53. Ke6 |
| ECO B76 in 1995 play it! nijboer friso defeats black's reinderman dimit 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 Nxd4 10. Bxd4 Be6 11. Kb1 Qc7 12. h4 Rfc8 13. g4 Qa5 14. Qg5 Qxg5 15. hxg5 Nd7 16. Bxg7 Kxg7 17. Rh4 Rh8 18. f4 Nb6 19. a4 Rac8 20. a5 Nd7 21. Rd4 f6 22. gxf6+ Kxf6 23. Rb4 Nc5 24. Bc4 h6 25. Rxh6 Rxh6 26. g5+ Kf7 27. Bxe6+ Nxe6 28. gxh6 Nxf4 29. Rxb7 g5 30. Nb5 Kf6 31. Nxa7 Rh8 32. Nc6 g4 33. Rb3 Nh5 34. a6 g3 35. Rf3+ Ke6 36. Rxg3 Nxg3 37. a7 Ra8 38. h7 Nxe4 39. Nb8 Rxa7 40. h8=Q Kd5 41. Qc8 |
| ECO B53 in 1989 play it! nijboer friso defeats black's armas iulius in 83 moves | 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. f4 e5 7. Nf3 Nbd7 8. a4 Be7 9. Bd3 O-O 10. O-O exf4 11. Bxf4 Qb6+ 12. Kh1 Qxb2 13. Qe1 Nc5 14. Rb1 Nxd3 15. cxd3 Qc2 16. e5 Nh5 17. Nd5 Bd8 18. Bg5 f6 19. exf6 Nxf6 20. Nxf6+ Bxf6 21. Bxf6 gxf6 22. Qg3+ Kh8 23. Qxd6 Bg4 24. Ne5 Be2 25. Rfc1 Qd2 26. Nd7 Qxd3 27. Qe6 Rae8 28. Nxf8 Rxe6 29. Nxe6 Qd7 30. Nc5 Qd2 31. Nxb7 Bd3 32. Rd1 Qe2 33. Re1 Qf2 34. Rbc1 f5 35. Nc5 Be2 36. Ne6 h6 37. Rc8+ Kh7 38. Rec1 Bf1 39. R1c7+ Kg6 40. Rg8+ Kf6 41. Nc5 Bc4 42. Ne4+ |
| ECO B33 in 1985 play it! nijboer friso defeats black's cmiel thorsten in 65 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 h6 10. Bh4 Bd7 11. Nf3 Qa5 12. Kb1 Rfd8 13. Bd3 Rac8 14. g4 b5 15. Rhg1 b4 16. Ne2 d5 17. Bxf6 Bxf6 18. e5 Be7 19. Nc1 Qb6 20. g5 hxg5 21. Nxg5 Bxg5 22. Rxg5 Be8 23. h4 Kf8 24. Rdg1 g6 25. h5 gxh5 26. f5 Ke7 27. fxe6 Nd4 28. exf7 Bxf7 29. Qf4 Rg8 30. Rf1 Be6 31. Rxh5 Kd7 32. Rh7+ Kc6 33. Rh4 |
| ECO B90 in 2001 play it! nijboer friso defeats black's shneider aleksan in 119 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 Nc6 11. Nxc6 Qxc6 12. Re1 Bb7 13. Qxg7 Rg8 14. Qh6 O-O-O 15. Qh3 Kb8 16. f3 Rg6 17. Be3 Rdg8 18. Re2 h5 19. Rd1 Nd7 20. Nd5 exd5 21. Bxd5 Qc7 22. Bxf7 h4 23. Bxg8 Rxg8 24. Qe6 Rg7 25. Qh6 Rg8 26. Qe6 Rg7 27. h3 Ne5 28. f4 Rg6 29. Qb3 Nc4 30. Bd4 Bf6 31. Qc3 Rg3 32. Rd3 b4 33. Ba7+ Kxa7 34. Qxf6 Qc5+ 35. Qd4 Qxd4+ 36. Rxd4 Nxb2 37. Rxb4 Nd1 38. Rd4 Nc3 39. Re1 Nxa2 40. Rxd6 Nc3 41. Rd4 Kb6 42. f5 Kc5 43. f6 Rg8 44. Rd7 Bc6 45. Rg7 Rf8 46. e5 Nd5 47. f7 Ne7 48. e6 Kd6 49. Rg4 a5 50. Rxh4 a4 51. Rd4+ Kc5 52. Rd3 Bb5 53. Rde3 Kb6 54. Rd1 Kc7 55. Rc3+ Bc6 56. Re3 Ra8 57. h4 Rh8 58. h5 Ra8 59. g4 Nd5 60. e7 |
| ECO B31 in 1992 play it! nijboer friso defeats black's kuijf marinus in 81 moves | 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 O-O 8. Be3 b6 9. Qd2 Re8 10. Bh6 Bh8 11. e5 Nd5 12. Ne4 Nc7 13. O-O-O Nb5 14. Qf4 Nd4 15. Rhe1 Nxf3 16. Qxf3 Qd5 17. Ng5 Qxf3 18. Nxf3 Be6 19. Ng5 Bd5 20. c4 Bxg2 21. Re3 Bg7 22. Bxg7 Kxg7 23. e6 f6 24. Nf7 Rac8 25. f4 Bd5 26. cxd5 cxd5 27. f5 d4 28. Rg3 c4 29. Rdg1 cxd3+ 30. Kd2 Rc2+ 31. Kxd3 Rxb2 32. fxg6 h6 33. R3g2 Rb4 34. Rc2 Ra4 35. h4 h5 36. Rf1 b5 37. Rf4 Ra3+ 38. Kxd4 Rb8 39. Kd5 Rb6 40. Rc7 Rd3+ 41. Ke4 |
| ECO B90 in 2001 play it! nijboer friso defeats black's vink nico in 75 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Nbd7 9. f3 b5 10. a4 bxa4 11. Rxa4 Qc8 12. Be2 Be7 13. O-O O-O 14. Rfa1 Nb8 15. Nd5 Nxd5 16. exd5 Bd7 17. Rb4 Bd8 18. Na5 Bf5 19. Nc4 Bc7 20. Nb6 Bxb6 21. Rxb6 Qc7 22. c4 Bc8 23. Qa5 f5 24. b4 f4 25. Bf2 Bb7 26. c5 Bxd5 27. Rxd6 Qf7 28. c6 Bxc6 29. Qc5 Qe8 30. Bc4+ Kh8 31. Re6 Qc8 32. Qxe5 Nd7 33. Qg5 Rf6 34. Bd4 Bb5 35. Rxf6 Nxf6 36. Qxf6 Ra7 37. Qe6 Qxe6 38. Bxe6 |
| ECO B47 in 1990 play it! nijboer friso defeats black's kuijf marinus in 83 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Kh1 Bb4 9. Qd3 Qd6 10. Nxc6 Qxd3 11. cxd3 dxc6 12. Be3 b5 13. Nb1 e5 14. h3 Be6 15. Nd2 Nd7 16. Nf3 f6 17. Rfc1 Rc8 18. d4 O-O 19. a4 Bd6 20. axb5 axb5 21. d5 cxd5 22. Rxc8 Rxc8 23. exd5 Bf5 24. Bxb5 Rb8 25. Bc6 Nf8 26. Nd2 Bd3 27. b3 Bb4 28. Ba7 Rc8 29. Nc4 Ng6 30. Ra4 Bf8 31. Bd7 Rd8 32. Be6+ Kh8 33. Bb6 Rb8 34. Bc7 Rxb3 35. d6 Nf4 36. Bf7 Be4 37. Ne3 Rb1+ 38. Kh2 Bc6 39. Ra6 Rc1 40. Bc4 Bd7 41. Ra8 Ng6 42. Bf7 |
| ECO B40 in 2005 play it! nijboer friso defeats black's farran martos fr in 37 moves | 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Qc7 6. Be2 Nf6 7. O-O Nxd4 8. Qxd4 Bc5 9. Qd3 a6 10. a4 d6 11. Qg3 Bd4 12. Ra3 O-O 13. Rd1 Qc5 14. Rxd4 Qxd4 15. Be3 Qb4 16. Rb3 Qa5 17. Bb6 Qe5 18. f4 Nxe4 19. Qe3 |
| ECO B85 in 2001 play it! nijboer friso defeats black's arbakov valentin in 69 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Qc7 8. f4 Be7 9. Be3 Nc6 10. Qe1 O-O 11. Qg3 Bd7 12. Rad1 Nxd4 13. Bxd4 Bc6 14. Bf3 Rad8 15. Rfe1 b5 16. Nd5 exd5 17. exd5 Ba8 18. Rxe7 Qxe7 19. Re1 Qxe1+ 20. Qxe1 Nxd5 21. f5 Nc7 22. Bxa8 Rxa8 23. Bxg7 Kxg7 24. Qc3+ f6 25. Qxc7+ Kh8 26. Qxd6 a5 27. h4 b4 28. h5 Kg7 29. Qg3+ Kh8 30. h6 Rf7 31. Qd6 Kg8 32. c4 bxc3 33. bxc3 a4 34. c4 a3 35. c5 |
| ECO B32 in 1999 play it! nijboer friso defeats black's brodsky michail in 75 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. f4 Nxd4 7. Qxd4 a6 8. Be3 b5 9. Be2 Bb7 10. O-O Rc8 11. Rac1 Nf6 12. Bf3 h5 13. h3 h4 14. e5 Nh5 15. Bxb7 Qxb7 16. Qe4 Qc6 17. Qxc6 Rxc6 18. Ne4 Rc4 19. Nd2 Rc6 20. Kf2 d5 21. exd6 Bxd6 22. Kf3 Ng3 23. Rfd1 e5 24. c4 exf4 25. Bf2 bxc4 26. Rxc4 Kd7 27. Rd4 Kc8 28. Rc4 Kd7 29. b4 Rhc8 30. Bc5 Ke6 31. Nb3 Nf5 32. Na5 R6c7 33. Re4+ Be5 34. Nc4 f6 35. Rde1 Rxc5 36. bxc5 Rxc5 37. Rxf4 g5 38. Nxe5 |
| ECO B42 in 1984 play it! nijboer friso defeats black's allegro valery in 61 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Bb6 7. O-O Nc6 8. Nc3 Nge7 9. Kh1 Ne5 10. Bf4 N7g6 11. Bg3 h5 12. Be2 h4 13. Bxe5 Nxe5 14. f4 Nc6 15. e5 Ne7 16. Ne4 Nf5 17. Nd6+ Nxd6 18. Qxd6 Bc7 19. Qd4 b6 20. Bf3 Rb8 21. Rad1 Bb7 22. Qd3 a5 23. h3 Bxf3 24. Rxf3 g5 25. Qb5 gxf4 26. Rfd3 O-O 27. Rxd7 Qc8 28. Qe2 Qb7 29. Qg4+ Kh8 30. Qxh4+ Kg7 31. Qf6+ |
| ECO B41 in 1985 play it! nijboer friso defeats black's grooten herman in 61 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 a6 7. a4 Nc6 8. Nf3 Qc7 9. Bd3 g6 10. O-O Bg7 11. Qe1 O-O 12. Qh4 Nb4 13. Kh1 d5 14. e5 Ne4 15. Nxe4 dxe4 16. Ng5 h5 17. Nxe4 Nxc2 18. Nf6+ Bxf6 19. exf6 Qc5 20. Qg3 Nd4 21. Bxg6 Kh8 22. f5 fxg6 23. Qxg6 Qc7 24. Bh6 Rf7 25. Qxh5 Kg8 26. Qg6+ Kh8 27. Rac1 Nc6 28. Rc4 Ne5 29. Bg7+ Kg8 30. Qh5 Rxg7 31. Qe8+ |
| ECO B93 in 1983 play it! nijboer friso defeats black's klinger josef in 77 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5 7. Nf3 Qc7 8. Bd3 b5 9. O-O Be7 10. Qe1 Nbd7 11. b4 O-O 12. a4 bxa4 13. Nxa4 exf4 14. Bxf4 Ne5 15. Kh1 Nxd3 16. cxd3 Bd7 17. Qd2 Qb7 18. Be3 Rab8 19. Nc3 Rfc8 20. Bd4 d5 21. Bxf6 Bxf6 22. Nxd5 Bxa1 23. Ne7+ Kf8 24. Nxc8 Bxc8 25. Rxa1 Qxb4 26. Qf4 h6 27. d4 Kg8 28. d5 f5 29. Rc1 fxe4 30. Ne5 Qf8 31. Qxe4 Bf5 32. Qc4 Rc8 33. Nc6 Kh7 34. Rf1 Qf7 35. Qf4 Rf8 36. d6 Kg8 37. Ne7+ Kh7 38. Qxf5+ Qxf5 39. Rxf5 |
| ECO B41 in 1990 play it! nijboer friso defeats black's taeger winfried in 47 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 Nd5 7. Bd2 Nxc3 8. bxc3 Ba5 9. Qg4 O-O 10. Bd3 d5 11. O-O f5 12. exf6 Qxf6 13. Rae1 Nc6 14. Nxe6 g6 15. f4 Bd7 16. f5 Rfe8 17. Qg3 Bxe6 18. fxe6 Qe7 19. Rf7 Qc5+ 20. Kh1 Rxe6 21. Rxh7 Bb6 22. Bxg6 Rxe1+ 23. Qxe1 Ne5 24. Rh5 |
| ECO B90 in 2004 play it! nijboer friso defeats black's spoelman wouter in 97 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. g4 b5 10. g5 b4 11. Ne2 Nh5 12. Qd2 a5 13. Ng3 Nxg3 14. hxg3 a4 15. Nc1 Qa5 16. f4 g6 17. Nd3 d5 18. exd5 Bxd5 19. Rh2 a3 20. b3 Rc8 21. Bh3 Be6 22. Bxe6 fxe6 23. O-O-O Rd8 24. Nxe5 Nxe5 25. Qxd8+ Qxd8 26. Rxd8+ Kxd8 27. fxe5 Be7 28. c3 Rf8 29. cxb4 Rf3 30. Kd2 Bxb4+ 31. Ke2 Rxg3 32. Rh4 Bc3 33. Ra4 Rg2+ 34. Kd3 Bb2 35. b4 Rg3 36. Ke2 Rg2+ 37. Kf3 Rc2 38. b5 Kc7 39. Ra6 Rc3 40. Ke2 Rc2+ 41. Kd3 Rc3+ 42. Kd2 Rc1 43. Rxe6 Ra1 44. b6+ Kb7 45. Re7+ Kc6 46. Rc7+ Kd5 47. b7 Rb1 48. Kc2 Bxe5 49. Rc5+ |
