| ECO A16 in 1999 play it! nijboer friso defeats white's gurevich mikhail in 100 moves | 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d3 d6 6. Nf3 e5 7. O-O Nc6 8. Rb1 a5 9. a3 Nd4 10. Nd2 c6 11. e3 Nf5 12. Nf3 Re8 13. e4 Nd4 14. Nxd4 exd4 15. Ne2 Nd7 16. b4 axb4 17. axb4 Nb6 18. Qc2 Na4 19. Ra1 b5 20. e5 Ra6 21. Nxd4 Bd7 22. Be3 Bxe5 23. Rae1 Qf6 24. Nf3 Bc3 25. Bg5 Qg7 26. Rxe8+ Bxe8 27. Qe2 Ra8 28. cxb5 cxb5 29. Nd2 Rb8 30. Qe7 f6 31. Bd5+ Kh8 32. Re1 Qxe7 33. Rxe7 fxg5 34. Ne4 Be5 35. d4 Nb6 36. Be6 d5 37. Nxg5 Bg7 38. Kg2 h6 39. Nf7+ Bxf7 40. Bxf7 g5 41. Kh3 Bxd4 42. Kg4 Bc3 43. Kh5 Bxb4 44. Ra7 Bf8 45. f4 gxf4 46. gxf4 Nc8 47. Rd7 Ne7 48. Be6 b4 49. f5 Kg7 50. Bxd5 Kf6 |
| ECO A16 in 1994 play it! nijboer friso defeats white's riemens m in 90 moves | 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. e3 e5 6. Nge2 c6 7. d4 d6 8. b3 Qe7 9. a4 e4 10. a5 Bf5 11. h3 h5 12. Qc2 Re8 13. Ba3 Na6 14. b4 Nc7 15. b5 cxb5 16. Nxb5 Nxb5 17. cxb5 Rac8 18. Qb2 Qd7 19. h4 Be6 20. Nf4 Bc4 21. Bf1 Bh6 22. Qb4 Bxf1 23. Kxf1 Bxf4 24. gxf4 Qg4 25. Rg1 Qxh4 26. Rg2 Qh1+ 27. Rg1 Qh3+ 28. Rg2 Nd5 29. Qd2 Qh1+ 30. Rg1 Qf3 31. Rg3 Rc2 32. Rxf3 Rxd2 33. Rg3 Rc8 34. Kg1 Rcc2 35. Rf1 Nc3 36. Rg5 Nd1 37. Bb4 Nxf2 38. Bxd2 Nh3+ 39. Kg2 Nxg5 40. fxg5 Rxd2+ 41. Kg3 Rb2 42. b6 axb6 43. axb6 Rxb6 44. d5 Rb5 45. Rd1 f5 |
| ECO A15 in 1987 play it! nijboer friso defeats white's deleyn gunter by checkmate in 80 moves | 1. c4 Nf6 2. g3 c5 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nc7 6. d3 e5 7. Nf3 Nc6 8. O-O Be7 9. Nd2 Bd7 10. Nc4 O-O 11. Bxc6 Bxc6 12. Nxe5 Be8 13. Qb3 b6 14. Be3 Bf6 15. f4 Bxe5 16. fxe5 Bc6 17. Rf5 Qd7 18. Raf1 Rae8 19. Qc4 Re6 20. Bd2 Qd4+ 21. Qxd4 cxd4 22. Nd1 Nd5 23. e4 dxe3 24. Nxe3 Ne7 25. R5f2 Rxe5 26. Nc4 Re6 27. Bb4 f6 28. Rc1 Re8 29. Ba3 Bd5 30. Nd6 Rd8 31. Rc7 Bxa2 32. Rxa7 Nc6 33. Ra6 Bd5 34. Nf5 g6 35. Nh4 Nd4 36. Ra7 g5 37. Ng2 Rc8 38. Rd7 Rc1+ 39. Rf1 Nf3+ 40. Kf2 Rc2# |
| ECO A16 in 2002 play it! nijboer friso defeats white's henrichs thomas in 77 moves | 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. Qa4+ Bd7 6. Qh4 Bc6 7. Qd4 f6 8. e3 Bg7 9. b4 a6 10. Bb2 e5 11. Qc4 Qd6 12. a3 Nd7 13. Ne4 Qe7 14. Rc1 N5b6 15. Qc2 Na4 16. Ba1 f5 17. Ng3 Nab6 18. Be2 Nc8 19. O-O Nd6 20. Rfe1 O-O 21. a4 Kh8 22. Rb1 Bd5 23. d3 Bg8 24. e4 f4 25. Nf1 Rac8 26. b5 axb5 27. axb5 c5 28. bxc6 bxc6 29. d4 exd4 30. Nxd4 Ne5 31. Nd2 Nb5 32. Nxb5 cxb5 33. Qd1 b4 34. Nf3 Rfd8 35. Qa4 Ra8 36. Qb5 Nxf3+ 37. Bxf3 Bxa1 38. Rxa1 Rab8 39. Qd3 |
| ECO A16 in 1992 play it! nijboer friso defeats white's bosboom manuel in 94 moves | 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O e5 7. d3 Nc6 8. Rb1 h6 9. b4 a6 10. a4 Be6 11. b5 axb5 12. axb5 Ne7 13. Bb2 Ne8 14. Qc2 f5 15. Ra1 Rb8 16. Rfd1 g5 17. d4 e4 18. Nd2 Ng6 19. e3 h5 20. Ra7 Nf6 21. Nb3 h4 22. d5 Bd7 23. Nd4 hxg3 24. hxg3 Qe8 25. Ne6 Bxe6 26. dxe6 Qxe6 27. Ne2 Ng4 28. Bxg7 Kxg7 29. Nd4 Qf6 30. b6 cxb6 31. Nb5 Rfd8 32. Rd5 Ne7 33. Rd2 Ne5 34. Ra4 Rbc8 35. Qa2 d5 36. Ra7 Nxc4 37. Rd1 Rd7 38. Nd4 Ne5 39. Ra8 Rxa8 40. Qxa8 g4 41. Qe8 Qf7 42. Qb8 N7c6 43. Nxc6 Nxc6 44. Qf4 Kg6 45. Rb1 Qf6 46. Rxb6 Qd6 47. Qxd6+ Rxd6 |
| ECO A16 in 1983 play it! nijboer friso defeats white's smith in 76 moves | 1. c4 Nf6 2. Nc3 c5 3. Nf3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 7. O-O e5 8. d3 Be7 9. Nd2 Bd7 10. Nc4 O-O 11. f4 exf4 12. Bxf4 Be6 13. Ne3 Rc8 14. Qd2 Bd6 15. Ne4 Bxf4 16. Rxf4 Na6 17. Raf1 f6 18. Nf5 Rc7 19. h4 Bxf5 20. Rxf5 Ne5 21. h5 h6 22. Qf4 Nb4 23. Nc3 Rd7 24. a3 Nbc6 25. Bxc6 bxc6 26. Ne4 Rd4 27. b3 Qe7 28. Rc1 a5 29. Rxc5 Rxe4 30. Qxe4 Qxc5+ 31. d4 Qb6 32. Kg2 Nd7 33. Qe6+ Rf7 34. Qe8+ Nf8 35. Rc5 Qxb3 36. Rxc6 Qd5+ 37. Kh2 Qxd4 38. Rc8 Qd7 |
| ECO A16 in 2000 play it! nijboer friso defeats white's psakhis lev b in 77 moves | 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Bg5 h6 6. Be3 e5 7. d5 Ng4 8. Bc1 f5 9. Be2 Nf6 10. exf5 gxf5 11. Bh5+ Nxh5 12. Qxh5+ Kf8 13. f4 Qe8 14. Qh3 Na6 15. Nge2 Nb4 16. O-O e4 17. Rb1 Bd7 18. Be3 Rg8 19. Bd4 Qg6 20. Bxg7+ Rxg7 21. a3 Nd3 22. Nc1 Nc5 23. Rf2 Qf6 24. Qe3 a5 25. b3 Kg8 26. Rc2 Kh7 27. b4 axb4 28. axb4 Na4 29. Nxa4 Bxa4 30. Rd2 Rag8 31. Rbb2 Rxg2+ 32. Rxg2 Qxb2 33. Rxg8 Kxg8 34. Ne2 Qxb4 35. Ng3 Bd7 36. Nh5 Kf7 37. Qg3 Qb1+ 38. Kg2 Qc2+ 39. Kg1 |
| ECO A16 in 1999 play it! nijboer friso defeats white's hoeksema hendrik in 58 moves | 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nge2 a6 6. f3 Nbd7 7. Be3 c5 8. d5 O-O 9. Qd2 Ne5 10. Ng3 b5 11. cxb5 h5 12. Be2 h4 13. Nf1 axb5 14. Nxb5 h3 15. gxh3 Ba6 16. Kf2 Qd7 17. a4 Bxb5 18. Bxb5 Qxh3 19. Ng3 c4 20. Qe2 Rfb8 21. Rad1 Ne8 22. Rd2 Nc7 23. Bxc4 Rxa4 24. b3 Nxc4 25. bxa4 Nxd2 26. Bxd2 Rb2 27. Qd3 Na6 28. Nf1 Nc5 29. Qe3 Nb3 |
| ECO A10 in 1989 play it! nijboer friso defeats white's kraehenbuehl ger in 76 moves | 1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 f5 5. d4 Nf6 6. d5 O-O 7. Nh3 Na6 8. O-O Nc5 9. Rb1 a5 10. Nf4 e5 11. dxe6 c6 12. Qc2 Nxe6 13. Rd1 Nc5 14. b3 Qe7 15. Bb2 g5 16. Nd3 Nce4 17. e3 h5 18. Re1 h4 19. gxh4 Nh5 20. hxg5 Qxg5 21. f4 Qg6 22. Nxe4 fxe4 23. Nf2 Rf7 24. Kh1 d5 25. cxd5 cxd5 26. Nh3 Bxb2 27. Qxb2 Ng3+ 28. hxg3 Rh7 29. Kh2 Bxh3 30. Bxh3 Qg4 31. Qg2 Ra6 32. Kg1 Rxh3 33. Kf2 Rah6 34. Rh1 Rxh1 35. Rxh1 Rc6 36. Ke1 Qc8 37. Qd2 Rc1+ 38. Kf2 Rc2 |
| ECO A03 in 2003 play it! nijboer friso defeats white's becx cesar in 84 moves | 1. f4 d5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nh6 5. O-O O-O 6. d3 d4 7. Na3 c5 8. Nc4 Nf5 9. e4 dxe3 10. c3 Nc6 11. Nxe3 Rb8 12. Ne1 Na5 13. Nxf5 Bxf5 14. g4 Bd7 15. Be3 b6 16. f5 Bc6 17. Bxc6 Nxc6 18. Qf3 Rc8 19. Qh3 Ne5 20. fxg6 fxg6 21. Rxf8+ Qxf8 22. d4 Nc4 23. dxc5 bxc5 24. Ng2 Qf7 25. Rf1 Qe6 26. Bc1 Ne5 27. Nf4 Qxa2 28. g5 Rf8 29. Qe6+ Qxe6 30. Nxe6 Rxf1+ 31. Kxf1 Nd3 32. Nxg7 Kxg7 33. Be3 c4 34. Bxa7 Nxb2 35. Ke2 Kf7 36. Ke3 e5 37. Ke4 Ke6 38. Bb8 Nd3 39. Ba7 Nf4 40. Be3 Nd5 41. Bd2 Ne7 42. Be1 Nc8 |
| ECO A00 in 2004 play it! nijboer friso defeats white's lazic miroljub in 60 moves | 1. g3 f5 2. Nf3 Nf6 3. c4 d6 4. d4 g6 5. b4 Bg7 6. Bb2 O-O 7. Bg2 e5 8. dxe5 Ng4 9. c5 Kh8 10. cxd6 cxd6 11. Qb3 Nxe5 12. Nbd2 Qe7 13. Nd4 a5 14. O-O axb4 15. Nc4 Nbd7 16. Qxb4 Nxc4 17. Qxc4 Nb6 18. Qb4 Na4 19. Rad1 Nxb2 20. Qxb2 f4 21. a3 Ra4 22. Rd3 Qe5 23. Rfd1 Qf6 24. Qb5 fxg3 25. fxg3 Rxd4 26. Rxd4 Qf2+ 27. Kh1 Bxd4 28. Rf1 Qxf1+ 29. Bxf1 Rxf1+ 30. Kg2 Rf2+ |
| ECO A00 in 1997 play it! nijboer friso defeats white's hoogendoorn joos in 38 moves | 1. g3 g6 2. Bg2 Bg7 3. e4 d6 4. d4 Nf6 5. Nc3 O-O 6. h3 e5 7. Nf3 Nbd7 8. Be3 a6 9. O-O b5 10. dxe5 dxe5 11. a4 Bb7 12. axb5 axb5 13. Qd3 b4 14. Nd5 Bxd5 15. exd5 e4 16. Qb3 exf3 17. Bxf3 Re8 18. Kh2 Rxa1 19. Rxa1 Bf8 |
| ECO A00 in 2002 play it! nijboer friso defeats white's kasparov sergey in 116 moves | 1. g3 Nf6 2. Bg2 d5 3. Nf3 c6 4. d3 Bg4 5. Nbd2 Nbd7 6. O-O e5 7. e4 dxe4 8. dxe4 Qc7 9. Qe1 Nc5 10. b3 Nfd7 11. Bb2 f6 12. Nh4 Bh5 13. Bh3 Bf7 14. a4 Ne6 15. Qe2 Bc5 16. Nf5 h5 17. Ba3 Bxa3 18. Rxa3 g6 19. Ne3 Ndf8 20. b4 Nd4 21. Qd1 Rd8 22. Rd3 h4 23. Bg2 Qd6 24. f4 hxg3 25. hxg3 Nh7 26. fxe5 fxe5 27. Nf3 c5 28. bxc5 Qxc5 29. Nxd4 Rxd4 30. c3 Rxd3 31. Qxd3 O-O 32. Kh2 Kg7 33. Ng4 Ng5 34. Qe3 Qxe3 35. Nxe3 Be6 36. Kg1 Rxf1+ 37. Kxf1 b6 38. Ke1 Bd7 39. Nc4 Bxa4 40. Nxe5 Bc2 41. Nc6 a5 42. e5 Be4 43. Bxe4 Nxe4 44. c4 a4 45. Kd1 Nxg3 46. Nb4 Ne4 47. Nd5 Kf7 48. Nxb6 Nc5 49. Kc2 Ke6 50. Kc3 Kxe5 51. Nd5 g5 52. Ne3 Kf4 53. Kd2 Kf3 54. Nf5 g4 55. Ke1 a3 56. Nd4+ Kg2 57. Nc2 a2 58. Kd1 Kf2 |
| ECO A00 in 2002 play it! nijboer friso defeats white's thiede lars in 82 moves | 1. g3 Nf6 2. c4 g6 3. Bg2 Bg7 4. Nc3 O-O 5. d3 d6 6. Nf3 e5 7. O-O Nc6 8. Rb1 a5 9. a3 Nd4 10. Nd2 c6 11. e3 Nf5 12. Nf3 Re8 13. e4 Nd4 14. Nxd4 exd4 15. Ne2 Nd7 16. b3 Nc5 17. Bb2 Ne6 18. f4 f5 19. exf5 gxf5 20. g4 Nc5 21. Ng3 Re3 22. gxf5 Nxd3 23. Nh5 Qf8 24. Ba1 Bxf5 25. Ng3 Rae8 26. Qh5 Bg6 27. Qg4 Qf6 28. f5 Bf7 29. Ne4 R8xe4 30. Bxe4 Nc5 31. Bc2 Nd7 32. Rbd1 c5 33. Bb2 Ne5 34. Qg2 Bh5 35. Be4 Re2 36. Rf2 Rxf2 37. Qxf2 Bxd1 38. Qg3 Qh6 39. Kf1 Qd2 40. f6 Be2+ 41. Kg2 Bg4+ |
| ECO A01 in 1999 play it! nijboer friso defeats white's welling gerard in 70 moves | 1. b3 Nf6 2. Bb2 d5 3. e3 g6 4. c4 dxc4 5. bxc4 Bg7 6. Nf3 O-O 7. Be2 c5 8. O-O b6 9. Nc3 Bb7 10. Qc2 Nc6 11. Rad1 Rc8 12. Qb1 e5 13. d3 Re8 14. Nd2 Nd7 15. Bf3 Nf8 16. Bd5 Ne6 17. Nb5 Qe7 18. Ne4 Rcd8 19. Qa1 a6 20. Bxe6 fxe6 21. Na3 Rf8 22. Nc2 b5 23. cxb5 axb5 24. f4 b4 25. fxe5 Rxf1+ 26. Kxf1 Nxe5 27. Bxe5 Bxe4 28. Bxg7 Bxd3+ 29. Rxd3 Rxd3 30. Bh6 e5 31. Ne1 Rd6 32. Qb1 g5 33. Qb3+ Qf7+ 34. Qxf7+ Kxf7 35. Bxg5 e4 |
| ECO A00 in 2001 play it! nijboer friso defeats white's sturm pieter in 88 moves | 1. Nc3 d5 2. e4 d4 3. Nce2 e5 4. Ng3 Be6 5. c3 c5 6. Bb5+ Nd7 7. Nf3 f6 8. Qe2 Ne7 9. O-O Rc8 10. Bc4 Bxc4 11. Qxc4 Nb6 12. Qb5+ Qd7 13. Qxd7+ Kxd7 14. d3 Nc6 15. c4 g6 16. Ne1 Bd6 17. Bd2 Na8 18. a3 Nc7 19. Ne2 a6 20. g3 b5 21. cxb5 axb5 22. b3 f5 23. f4 fxe4 24. dxe4 Rhe8 25. Nd3 exf4 26. Bxf4 Rxe4 27. Bxd6 Kxd6 28. Rf6+ Re6 29. Raf1 c4 30. bxc4 bxc4 31. Nb4 Nxb4 32. axb4 d3 33. Nc3 Rxf6 34. Rxf6+ Ke5 35. Rf4 Ne6 36. Re4+ Kf6 37. Kf2 Ng5 38. Rf4+ Ke6 39. Ke3 Nf7 40. Ne4 Ne5 41. Kd4 c3 42. Rf6+ Ke7 43. Kxe5 c2 44. Nc5 Rf8 |
| ECO A00 in 2000 play it! nijboer friso defeats white's bettman jan in 58 moves | 1. a3 g6 2. h4 d5 3. c4 dxc4 4. e3 Nc6 5. h5 Bg7 6. Nc3 Ne5 7. Bxc4 Nxc4 8. Qa4+ c6 9. Qxc4 Be6 10. Qf4 Qd6 11. Nge2 Qxf4 12. Nxf4 Bb3 13. d4 O-O-O 14. Nd3 b6 15. Bd2 Kb7 16. Rc1 c5 17. Rh4 g5 18. h6 Nxh6 19. Rh5 f6 20. Ne4 Bf7 21. Rh3 cxd4 22. Ndc5+ bxc5 23. Nxc5+ Ka8 24. exd4 Nf5 25. Ba5 Rxd4 26. Na6 Re4+ 27. Kd1 Bc4 28. Rxc4 Rxc4 29. Rb3 Nd4 |
| ECO B30 in 1995 play it! nijboer friso defeats white's van der weide ka in 80 moves | 1. e4 c5 2. Nf3 Nc6 3. d3 Nf6 4. g3 d5 5. Nbd2 e5 6. Bg2 Be7 7. O-O O-O 8. c3 d4 9. Nc4 Qc7 10. a4 Be6 11. Qe2 Nd7 12. Bd2 Rfd8 13. Rfb1 b6 14. Ne1 a6 15. f4 f6 16. f5 Bf7 17. Na3 Na7 18. c4 Qc6 19. b3 b5 20. axb5 axb5 21. Bf3 Kf8 22. Bh5 Bg8 23. Ng2 Rdb8 24. Nh4 bxc4 25. bxc4 Rxb1+ 26. Rxb1 Qa4 27. Bc1 Bd8 28. Rb7 Qc6 29. Rb3 Ba5 30. Qb2 Bc3 31. Qb1 Qc8 32. g4 Nc6 33. Rb5 Nb4 34. g5 fxg5 35. Ng2 Nf6 36. Be2 Bf7 37. Nc2 Be8 38. Rb6 Qc7 39. Re6 Bf7 40. Nxb4 cxb4 |
| ECO B25 in 2002 play it! nijboer friso defeats white's van arkel rogier in 82 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 Nf6 7. Nf3 O-O 8. O-O Rb8 9. h3 b5 10. a3 a5 11. Be3 b4 12. axb4 axb4 13. Ne2 Bb7 14. b3 e6 15. g4 Nd7 16. Rc1 d5 17. e5 d4 18. Bd2 f6 19. exf6 Nxf6 20. Ng5 Qe7 21. Ng3 h6 22. N5e4 Nd5 23. f5 Ne3 24. Bxe3 dxe3 25. fxg6 Rxf1+ 26. Qxf1 Rf8 27. Qe1 Bd4 28. Nh5 Ne5 29. g7 Nf3+ 30. Bxf3 Rxf3 31. Ra1 e2+ 32. Kh2 Rf1 33. Qg3 Kh7 34. g5 Bxe4 35. g6+ Kg8 36. Qb8+ Rf8 37. gxf8=Q+ Qxf8 38. Qxf8+ Kxf8 39. Re1 Be5+ 40. Kg1 Bf3 41. g7+ Kf7 |
| ECO B30 in 2005 play it! nijboer friso defeats white's neubauer martin in 78 moves | 1. e4 c5 2. Nf3 Nc6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 d6 7. Bc4 e6 8. O-O Be7 9. exd6 Qxd6 10. Nc3 O-O 11. Re1 a6 12. Ne4 Qb4 13. Bb3 Rd8 14. a3 Qb6 15. Bc2 h6 16. Qd3 Qb5 17. Qd1 Nf6 18. Nc3 Qb6 19. Be3 Ng4 20. Qd3 g6 21. b4 Qc7 22. Bb3 Bf6 23. h3 Nxe3 24. fxe3 Bg7 25. Rac1 Bd7 26. Ne4 Be8 27. Kh1 Qe7 28. Nc5 a5 29. b5 Ne5 30. Nxe5 Bxe5 31. a4 Rac8 32. Qe4 Bg3 33. Rf1 b6 34. Nd3 Rxc1 35. Rxc1 Qa3 36. Bd1 Kg7 37. Qf3 Bb8 38. Qe2 e5 39. Bc2 e4 |
