| ECO C67 in 1979 play it! boll peter defeats black's van ossenbruggen in 75 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 d5 7. Nxe5 Bd7 8. Bxc6 Bxc6 9. Re1 Bd7 10. c4 Bf5 11. cxd5 Qxd5 12. g4 Bh4 13. Nd3 O-O-O 14. gxf5 Rhe8 15. Qf3 Qxd4 16. Nc3 Qxd3 17. Qxd3 Bxf2+ 18. Kg2 Rxd3 19. Rxe4 Rxe4 20. Nxe4 Bd4 21. Bf4 Bxb2 22. Rb1 Rd4 23. Kf3 Ba3 24. Rg1 Rd3+ 25. Ke2 Rd5 26. f6 g6 27. Rg2 h5 28. Rg3 Bb2 29. Bd2 c5 30. Rg5 Re5 31. Kf3 b6 32. Nd6+ Kd7 33. Nxf7 Rxg5 34. Bxg5 Bxf6 35. Bxf6 Ke6 36. Be5 Kxf7 37. Bb8 a6 38. Ba7 |
| ECO C28 in 1974 play it! boll peter defeats black's doup tim in 100 moves | 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6 4. d3 d6 5. f4 exf4 6. Bxf4 Be6 7. Nd5 Bxd5 8. exd5 Ne5 9. Qe2 Qe7 10. Bxe5 Qxe5 11. Bb5+ Nd7 12. O-O-O O-O-O 13. Qxe5 dxe5 14. Nf3 f6 15. Rde1 Nb6 16. d4 Rxd5 17. c4 Rd8 18. c5 Nd7 19. dxe5 c6 20. e6 Nxc5 21. e7 Bxe7 22. Rxe7 cxb5 23. Rxg7 Nd3+ 24. Kb1 Rhe8 25. Rd1 Nb4 26. Rc1+ Kb8 27. a3 Nc6 28. Rxh7 Re2 29. Rg7 Rd3 30. h4 Rf2 31. h5 Re3 32. Nd4 Rd3 33. Nxc6+ bxc6 34. Re1 Rd8 35. h6 Rf4 36. g3 Rf2 37. h7 Rh2 38. Rg8 Kc8 39. Ree8 Rxe8 40. Rxe8+ Kd7 41. h8=Q Rxh8 42. Rxh8 Kc7 43. Rf8 a5 44. Rxf6 a4 45. Kc2 Kb6 46. g4 Kc5 47. g5 Kd5 48. Kd3 c5 49. Rf5+ Kd6 50. g6 c4+ |
| ECO C56 in 1975 play it! boll peter defeats black's doup tim in 33 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 Ng4 7. Re1 O-O 8. h3 Nh6 9. Bg5 Be7 10. Bxh6 gxh6 11. c3 dxc3 12. Nxc3 d6 13. exd6 Bxd6 14. Qd2 Qf6 15. Nd5 Qg6 16. Bd3 Qg7 17. Kh1 |
| ECO C50 in 1973 play it! boll peter defeats black's pepels hans by checkmate in 35 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. O-O Nf6 5. Nc3 Nxe4 6. Bxf7+ Kxf7 7. Nxe4 d5 8. Ng3 Bg4 9. h3 h5 10. hxg4 hxg4 11. Nh2 Bh4 12. Qxg4 Bxg3 13. Qxg3 Rh5 14. f4 Qh8 15. fxe5+ Ke6 16. Qg6+ Kxe5 17. d4+ Nxd4 18. Bf4# |
| ECO C54 in 1977 play it! boll peter defeats black's thornleeson in 51 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d5 9. exd5 Nxd5 10. Qb3 Nce7 11. O-O O-O 12. Rfe1 c6 13. a4 Qb6 14. a5 Qxb3 15. Nxb3 Rd8 16. Nc5 Rb8 17. Ne5 Kf8 18. Ra3 b6 19. axb6 axb6 20. Ne4 f6 21. Rf3 Bb7 22. Nd3 Ra8 23. Ng5 Bc8 24. Nxh7+ Kg8 25. Nxf6+ gxf6 26. Rxe7 |
| ECO C54 in 1977 play it! boll peter defeats black's faber klaas in 85 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. O-O Nxe4 7. cxd4 Be7 8. d5 Nb8 9. Re1 Nd6 10. Bd3 O-O 11. Bf4 Ne8 12. Qc2 h6 13. Nc3 d6 14. Qe2 Bg5 15. Nxg5 hxg5 16. Qh5 Nf6 17. Qxg5 Ng4 18. Qxd8 Rxd8 19. Nb5 Na6 20. Rac1 Bd7 21. Nxc7 Nc5 22. Rxc5 dxc5 23. Nxa8 Rxa8 24. Re7 Nf6 25. Be5 Rd8 26. Bxf6 gxf6 27. Be2 Kf8 28. Re3 a5 29. Rb3 b5 30. h4 a4 31. Rc3 c4 32. a3 Bf5 33. Bf3 Re8 34. Rc1 Be4 35. Rd1 Bxf3 36. gxf3 Re5 37. Kf1 Ke7 38. Re1 b4 39. Rxe5+ fxe5 40. Ke1 c3 41. Kd1 cxb2 42. Kc2 bxa3 43. h5 |
| ECO C70 in 1991 play it! boll peter defeats black's de hoog ronny in 85 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. O-O d6 6. c3 Bg4 7. h3 Bxf3 8. Qxf3 b5 9. Bb3 Qf6 10. Qe2 Nge7 11. a4 b4 12. d3 O-O 13. Nd2 Ng6 14. Nf3 Na5 15. Bg5 Nf4 16. Qd1 Qg6 17. Bxf4 exf4 18. Bc2 bxc3 19. bxc3 Qh6 20. d4 Bb6 21. Qd3 Nc6 22. Rfb1 a5 23. Rb5 Rfe8 24. Re1 Rad8 25. Bb3 Re7 26. Rf5 Rdd7 27. Qd2 Nd8 28. Qxf4 Qxf4 29. Rxf4 Ne6 30. Rh4 f6 31. Nd2 g5 32. Rg4 Kf8 33. Bxe6 Rxe6 34. Rg3 c5 35. d5 Re8 36. Rb1 Bd8 37. Re3 Ra7 38. g4 Ree7 39. Rb8 Red7 40. Nc4 Ke7 41. Re1 h6 42. Reb1 Rdc7 43. Nxd6 |
| ECO C89 in 1981 play it! boll peter defeats black's demelt in 81 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bb7 13. Ng3 Na5 14. Bc2 Nc4 15. b3 Nb6 16. Bd2 c5 17. d5 g6 18. Qe2 Bg7 19. a4 c4 20. b4 bxa4 21. Bxa4 Nxa4 22. Rxa4 Qc7 23. Ra5 Rf8 24. Nh2 Nd7 25. Ng4 Kh7 26. Ne3 Nb6 27. h4 Rac8 28. h5 Nd7 29. Ng4 Qd8 30. Qe3 Qb6 31. Nf6+ Bxf6 32. Qxh6+ Kg8 33. hxg6 fxg6 34. Qxg6+ Bg7 35. Qe6+ Kh8 36. Re3 Nf6 37. Nf5 Nh7 38. Ne7 Rf6 39. Ng6+ Rxg6 40. Qxg6 Nf8 41. Qf7 |
| ECO C24 in 1977 play it! boll peter defeats black's mooren leo in 81 moves | 1. e4 e5 2. Bc4 Nf6 3. Nf3 Nc6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. cxd4 Qxg5 9. Bxb5+ Kd8 10. Qf3 Bb7 11. O-O Rb8 12. d3 Nf4 13. Bxf4 exf4 14. Bc6 Bxc6 15. Qxc6 Qg6 16. Qf3 Bd6 17. Nd2 Re8 18. Rfe1 Re6 19. Nc4 Qf5 20. Rxe6 fxe6 21. Re1 Rb5 22. Nxd6 cxd6 23. Qa8+ Ke7 24. Qxa7+ Kf6 25. Qa8 Rxb2 26. Qf8+ Kg6 27. Qxd6 Kf6 28. Qf8+ Kg6 29. Qxf5+ Kxf5 30. Ra1 Rd2 31. a4 Rxd3 32. a5 Rxd4 33. a6 Rd8 34. a7 Ra8 35. f3 Ke5 36. Kf2 Kd4 37. Ke2 e5 38. Kd2 Kc4 39. Rc1+ Kd5 40. Rc7 g5 41. Rd7+ |
| ECO C26 in 1985 play it! boll peter defeats black's kleijberg ad in 93 moves | 1. e4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Nge2 O-O 5. Bg2 c6 6. O-O d6 7. d3 Nbd7 8. h3 b5 9. g4 Nb6 10. f4 Ne8 11. Ng3 Nc7 12. f5 f6 13. h4 d5 14. g5 Be7 15. Qh5 Re8 16. g6 h6 17. Bxh6 gxh6 18. Qxh6 Bc5+ 19. Kh1 Re7 20. Nh5 Ne8 21. Bf3 a5 22. g7 Rxg7 23. Nxg7 Nxg7 24. Bh5 b4 25. Rg1 Bxg1 26. Rxg1 Qd7 27. Ne2 dxe4 28. Be8 Qc7 29. Bg6 exd3 30. Qh7+ Kf8 31. Qh8+ Ke7 32. Qxg7+ Kd6 33. Qxf6+ Kc5 34. cxd3 Nd5 35. d4+ Kb6 36. Qxe5 Ba6 37. Qxc7+ Kxc7 38. Ng3 Nf4 39. h5 Rh8 40. Re1 Kd7 41. Re5 a4 42. Kg1 b3 43. axb3 axb3 44. f6 Bd3 45. Re7+ Kd8 46. Ra7 Rh6 47. f7 |
| ECO C65 in 1987 play it! boll peter defeats black's olthof rene aja in 77 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. Nc3 O-O 6. Nxe5 Nxe5 7. d4 Bd6 8. f4 Ng6 9. e5 c6 10. Bd3 Bc7 11. exf6 Qxf6 12. Be3 d5 13. f5 Qh4 14. g3 Bxg3 15. Qd2 Re8 16. Rf3 Qxh2+ 17. Qxh2 Bxh2+ 18. Kxh2 Nh4 19. Rf4 Nxf5 20. Bf2 Nd6 21. Rg1 f5 22. Bh4 Kf7 23. Bg3 g5 24. Rf2 Ne4 25. Bxe4 dxe4 26. Be5 Kg6 27. Nxe4 h6 28. Nd6 Re7 29. c4 Be6 30. a4 Rf8 31. b3 a5 32. Ne4 Ref7 33. Nc5 Bc8 34. Nd3 f4 35. Bd6 Re8 36. Ne5+ Rxe5 37. Bxe5 Kf5 38. Bxf4 gxf4 39. Rxf4+ |
| ECO C77 in 1976 play it! boll peter defeats black's mooren leo in 81 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 b5 6. Bb3 Nxe4 7. d5 Na5 8. Qe2 Nxb3 9. axb3 Nf6 10. Nxe5 Be7 11. O-O O-O 12. c4 Bb7 13. Be3 Re8 14. Nd3 c6 15. dxc6 dxc6 16. Nc3 Qd7 17. Rfd1 Qf5 18. Qd2 Rad8 19. Bb6 Rd7 20. Qf4 Qh5 21. c5 Nd5 22. Nxd5 Rxd5 23. Qc7 Bc8 24. Qxc6 Bd7 25. Qb7 Bg4 26. Re1 Rxd3 27. Rxe7 Rf8 28. Rae1 Be6 29. Qe4 Rd2 30. Ra7 Bd5 31. Qf4 Qe2 32. Qe3 Qg4 33. Qg3 Rd1 34. Re7 Rxe1+ 35. Rxe1 Qb4 36. Re3 h6 37. h3 Kh7 38. Qe5 Be6 39. c6 Qd2 40. Bd4 Rg8 41. c7 |
| ECO C24 in 1982 play it! boll peter defeats black's de ruyter luc in 55 moves | 1. e4 e5 2. Bc4 Nf6 3. Qe2 Nc6 4. Nf3 Be7 5. c3 O-O 6. O-O d6 7. h3 Be6 8. Bb5 Bd7 9. d4 exd4 10. cxd4 d5 11. e5 Ne4 12. Nc3 Nxc3 13. bxc3 f6 14. e6 Bc8 15. Re1 Qd6 16. a4 Re8 17. c4 a6 18. c5 Qd8 19. Bxc6 bxc6 20. Ra3 Rb8 21. Nh4 Kh8 22. Qh5 Rb1 23. Ng6+ Kg8 24. Nf4 Bf8 25. Qf7+ Kh8 26. Rae3 Re7 27. Qh5 Qe8 28. Qxe8 |
| ECO C59 in 1977 play it! boll peter defeats black's mostertman loek in 59 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Bd6 11. f4 exf3 12. Nxf3 O-O 13. c3 Re8 14. O-O c5 15. d4 Bb7 16. Kh1 cxd4 17. Nxd4 Ne4 18. Bf4 Bxf4 19. Rxf4 Qg5 20. Qf1 Re7 21. Na3 Rae8 22. Rf5 Qd2 23. Rd1 Qxb2 24. Rxa5 Nxc3 25. Nc4 Qb4 26. a3 Qxc4 27. Bxc4 Nxd1 28. Rf5 Ne3 29. Rxf7 Nxc4 30. Rxe7 |
| ECO C97 in 1980 play it! boll peter defeats black's kunz walter in 133 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 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Bd7 13. Nf1 Rfc8 14. d5 c4 15. Ng3 Nb7 16. Nh2 Ne8 17. Ng4 Nd8 18. Kh1 f6 19. Ne3 g6 20. Bd2 Ng7 21. Kh2 Nf7 22. Rh1 a5 23. a3 h5 24. Ne2 f5 25. f4 Bf6 26. g3 Re8 27. exf5 Nxf5 28. Qg1 Kh8 29. Qf2 Qc8 30. Ng2 e4 31. g4 hxg4 32. hxg4 N5h6 33. g5 Ng4+ 34. Kg1+ Kg8 35. Qh4 Qc5+ 36. Kf1 Bg7 37. Rd1 Bf5 38. Be1 Ne3+ 39. Nxe3 Qxe3 40. Bf2 Qf3 41. Ng1 Qh5 42. Qxh5 gxh5 43. Re1 Nh8 44. Re3 Ng6 45. Ne2 Bg4 46. Bxe4 Bxe2+ 47. Kxe2 Nxf4+ 48. Kd2 b4 49. Bg3 bxc3+ 50. bxc3 Be5 51. Rf1 Nd3 52. Bxd3 Bxg3 53. Rxg3 cxd3 54. Rh1 Re2+ 55. Kxd3 Ra2 56. Rxh5 Rxa3 57. Rgh3 Rf8 58. Rh8+ Kg7 59. R3h7+ Kg6 60. Rxf8 Kxh7 61. Rf6 Ra1 62. Rxd6 a4 63. Ra6 a3 64. Kc2 Rg1 65. Rxa3 Rxg5 66. c4 Kg7 67. Rf3 |
| ECO C43 in 1986 play it! boll peter defeats black's diaconescu paul in 43 moves | 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 Bxd7 7. O-O Qh4 8. c4 O-O-O 9. c5 g5 10. f3 Nf6 11. Be3 Re8 12. Qd2 Rg8 13. Bf2 Qh6 14. g4 Kb8 15. Na3 Rc8 16. Rfe1 Ne8 17. Re5 c6 18. Bg3 Nc7 19. Qb4 Ka8 20. Nc2 Rh8 21. Rae1 Ne6 22. Bf5 |
| ECO C47 in 1974 play it! boll peter defeats black's balk jan in 67 moves | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 Nb4 6. Bg5 Nbxd5 7. exd5 Bb4+ 8. Bd2 Bxd2+ 9. Qxd2 Nxd5 10. Qxd4 Qe7+ 11. Be2 Nf6 12. O-O-O O-O 13. Rhe1 Qe4 14. Qc3 Qf4+ 15. Kb1 d5 16. g3 Qd6 17. Nd4 c6 18. f4 Re8 19. f5 b6 20. g4 c5 21. Nb5 Qxh2 22. Bf3 Rxe1 23. Rxe1 Ba6 24. Qd3 c4 25. Qd1 Bxb5 26. Bxd5 Nxd5 27. Qxd5 Re8 28. Rd1 Qe5 29. Qb7 Qe2 30. Rc1 Qxg4 31. Qxa7 Qd4 32. a4 Bc6 33. a5 bxa5 34. Qxd4 |
| ECO C64 in 1982 play it! boll peter defeats black's lorck frederick in 31 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nge7 5. O-O a6 6. Ba4 b5 7. Bb3 h6 8. d4 exd4 9. cxd4 Bb6 10. a4 Bb7 11. axb5 axb5 12. Rxa8 Qxa8 13. Nc3 Na5 14. Ne5 Rf8 15. Qg4 Qc8 16. Qxg7 |
| ECO C80 in 1978 play it! boll peter defeats black's scheltens in 27 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 7. Re1 f5 8. Nxd4 Bc5 9. Rxe4+ fxe4 10. Qh5+ g6 11. Qxc5 Qf6 12. Be3 b6 13. Qd5 h6 14. Nxc6 |
| ECO C44 in 1974 play it! boll peter defeats black's doup tim by checkmate in 53 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Nxe4 6. Re1 f5 7. Ng5 d5 8. Nxe4 dxe4 9. c3 d3 10. f3 Be7 11. fxe4 fxe4 12. Rxe4 Bf5 13. Qf3 Bxe4 14. Qf7+ Kd7 15. Be6+ Kd6 16. Bf4+ Ne5 17. Na3 Bf6 18. Nc4+ Kc6 19. Na5+ Kb5 20. a4+ Kb6 21. Bxe5 Rf8 22. Nc4+ Ka6 23. b4 c6 24. b5+ cxb5 25. axb5+ Kxb5 26. Bd7+ Kc5 27. Bd6# |