| ECO B02 in 1979 play it! weyerstrass defeats white's houtman a in 27 moves | 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. d4 e6 5. Nf3 c5 6. Be3 Nc6 7. dxc5 Ndxe5 8. Bb5 Nd7 9. Bxc6 bxc6 10. Nd4 Bxc5 11. Nxc6 Qb6 12. Bxc5 Nxc5 13. Ne5 Qxb2 14. Ne2 |
| ECO B02 in 1978 play it! weyerstrass defeats white's ter brugge in 72 moves | 1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Nf3 Nxc3 5. bxc3 g6 6. d4 Bg7 7. Be2 O-O 8. O-O c5 9. Be3 Qc7 10. Qd2 Rd8 11. Rab1 Nc6 12. d5 e6 13. c4 Ne7 14. Bf4 e5 15. Bg3 Nf5 16. Rfd1 f6 17. h3 Nd6 18. Qe3 Re8 19. Nd2 f5 20. Bh2 b6 21. Bf1 Bb7 22. Nf3 Qe7 23. Re1 Nf7 24. Rbd1 Rad8 25. Bf4 Bf6 26. Bh2 Kh8 27. c3 g5 28. g3 Ba6 29. Nd2 Nd6 30. Be2 Qg7 31. Kh1 Qh6 32. Kg2 f4 33. Qf3 e4 34. Qg4 f3+ 35. Bxf3 exf3+ 36. Nxf3 Bc8 |
| ECO B03 in 1984 play it! weyerstrass defeats white's malyskopolen in 52 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nc3 e6 8. Nf3 Nc6 9. Be3 Bg4 10. Qd2 Bb4 11. Be2 Bxf3 12. gxf3 Qh4+ 13. Bf2 Qh3 14. a3 Be7 15. c5 Nd7 16. O-O-O O-O-O 17. Qe3 Ncxe5 18. Bg3 Nc6 19. b4 Bf6 20. b5 Ne7 21. Bd3 Nxc5 22. Bf1 Qh6 23. Qxh6 gxh6 24. dxc5 Bxc3 25. Bh4 Rxd1+ 26. Kxd1 Nf5 |
| ECO B04 in 1979 play it! weyerstrass defeats white's velker in 80 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Nc3 Nxc3 6. bxc3 Bg7 7. Bf4 Nc6 8. Bd3 dxe5 9. Nxe5 Nxe5 10. Bxe5 Bxe5 11. dxe5 Qd5 12. O-O Qxe5 13. Qd2 O-O 14. Rae1 Qf6 15. f4 Rd8 16. Qe3 e6 17. Be4 Rd6 18. g4 c6 19. f5 exf5 20. gxf5 Bxf5 21. Qf4 Re6 22. Bxf5 Qxf5 23. Qxf5 gxf5 24. Rd1 Re5 25. Rd7 b6 26. Rfd1 Rc5 27. Rc7 Rxc3 28. Rdd7 Rf8 29. Rxa7 Rxc2 30. Rab7 b5 31. a3 Kg7 32. Rbc7 f4 33. Rd4 Re8 34. Kf1 Re6 35. a4 bxa4 36. Rxa4 f3 37. Rg4+ Rg6 38. Rf4 Rf6 39. Rg4+ Kh6 40. Rh4+ Kg5 |
| ECO B04 in 1982 play it! weyerstrass defeats white's van den bergh in 40 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. Ng5 d5 8. f4 O-O 9. O-O a5 10. c3 f6 11. Nf3 Bf5 12. Nbd2 a4 13. Bc2 Bxc2 14. Qxc2 f5 15. b3 axb3 16. Qxb3 Nc6 17. a4 Qd7 18. Ba3 Rxa4 19. e6 Qxe6 20. Rfe1 Qd7 |
| ECO B04 in 1981 play it! weyerstrass defeats white's van der ven in 50 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. Bf4 Nc6 8. Nc3 O-O 9. h3 d5 10. Qd2 f6 11. exf6 exf6 12. O-O-O Na5 13. Nb5 Nxb3+ 14. axb3 Rf7 15. Qc3 c6 16. Nd6 Re7 17. Rhe1 Bf8 18. Rxe7 Bxe7 19. Nxc8 Nxc8 20. Qe3 Qd7 21. Re1 Kf7 22. g4 Nd6 23. Kb1 Re8 24. Be5 Ne4 25. Bf4 Bb4 |
| ECO B02 in 1983 play it! weyerstrass defeats white's de beer in 70 moves | 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 e6 6. d4 b6 7. Nxd5 exd5 8. cxb6 axb6 9. f4 Ba6 10. Bxa6 Nxa6 11. Nf3 Be7 12. O-O O-O 13. Be3 f5 14. a3 c6 15. h3 Nc7 16. b4 b5 17. g4 Ra4 18. Qd3 g6 19. Rae1 Ne6 20. Nd2 Qa8 21. Nb1 Bd8 22. Kg2 Bb6 23. Kg3 Qa7 24. Rd1 Kg7 25. Qc3 Rf7 26. Rd3 Qb8 27. Qc1 Qa7 28. Nc3 Rxa3 29. Nxb5 Rxd3 30. Nxa7 Bxd4 31. Rf3 fxg4 32. hxg4 Rc3 33. Qe1 Ng5 34. Bxd4 Rxf3+ 35. Kg2 R7xf4 |
| ECO B02 in 1982 play it! weyerstrass defeats white's fast in 109 moves | 1. e4 Nf6 2. Nc3 d5 3. e5 d4 4. exf6 dxc3 5. bxc3 exf6 6. d4 c5 7. Nf3 Bg4 8. Be2 cxd4 9. cxd4 Nc6 10. c3 Be7 11. Be3 O-O 12. O-O Na5 13. Nd2 Bxe2 14. Qxe2 Rc8 15. Rfc1 Qd7 16. a4 b6 17. Qb5 Rc7 18. Bf4 Bd6 19. Qxd7 Rxd7 20. Bxd6 Rxd6 21. Re1 Rd7 22. Re3 Rc8 23. Rae1 Kf8 24. Ra1 Re7 25. Rae1 Rxe3 26. Rxe3 Nc4 27. Nxc4 Rxc4 28. d5 Rxa4 29. Kf1 f5 30. f3 Ra5 31. c4 Rc5 32. d6 Rc8 33. Re7 Rd8 34. Rxa7 Rxd6 35. Ke2 f4 36. Rb7 g6 37. g4 fxg3 38. hxg3 Kg7 39. Rc7 h5 40. c5 Re6+ 41. Kf2 bxc5 42. Rxc5 Kf6 43. Rc7 g5 44. Rc8 Kg7 45. Rc7 Re8 46. f4 g4 47. Rc5 Kg6 48. Rg5+ Kh6 49. Rf5 Rf8 50. Rf6+ Kg7 51. Rf5 Kg6 52. Rg5+ Kh6 53. Rf5 f6 54. Ra5 Rb8 55. Ra2 |
| ECO B04 in 1979 play it! weyerstrass defeats white's houtman a in 34 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4 dxe5 8. a5 N6d7 9. dxe5 Nxe5 10. Qxd8+ Kxd8 11. Nxe5 Bxe5 12. Bxf7 e6 13. Bg5+ Kd7 14. O-O Rf8 15. Re1 Nc6 16. f4 Bd4+ 17. Kh1 Rxf7 |
| ECO B03 in 1978 play it! weyerstrass defeats white's de vries in 56 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nf3 e6 9. Be2 Bg4 10. O-O Be7 11. Nc3 O-O 12. Ne4 Qd7 13. Qd2 Rad8 14. Rad1 Bxf3 15. Rxf3 a5 16. Rg3 Kh8 17. Bh6 Rg8 18. Bg5 Nxd4 19. Rd3 c5 20. Bxe7 Qxe7 21. Nxc5 Qxc5 22. Rxd4 Rd7 23. Kh1 Rgd8 24. Rxd7 Rxd7 25. Qc3 Rxd1+ 26. Bxd1 Qxc4 27. Qxc4 Nxc4 28. Bf3 b6 |
| ECO B02 in 1984 play it! weyerstrass defeats white's voortman in 60 moves | 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. d4 e6 5. Nf3 c5 6. dxc5 Nc6 7. Bb5 Bxc5 8. O-O O-O 9. Re1 f6 10. exf6 Nxf6 11. Na4 Bd6 12. c4 a6 13. Bxc6 bxc6 14. c5 Bb8 15. Nb6 Ra7 16. Nd4 Ne4 17. Be3 Qc7 18. Qh5 e5 19. Nf3 Nf6 20. Qh4 Bg4 21. Nd2 Qf7 22. h3 Bf5 23. f4 Re7 24. fxe5 Bxe5 25. Bd4 Be4 26. Bxe5 Rxe5 27. Na4 g5 28. Qg3 Nh5 29. Qe3 Bxg2 30. Qg3 Nxg3 |
| ECO B03 in 1979 play it! weyerstrass defeats white's van der heijden in 80 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Bg4 10. Be2 Bxf3 11. gxf3 Qh4+ 12. Bf2 Qf4 13. Qc1 Qxc1+ 14. Rxc1 Be7 15. f4 g5 16. d5 exd5 17. Nxd5 O-O-O 18. Bg4+ Kb8 19. Nxe7 Nxe7 20. fxg5 Ng6 21. Bg3 Nxe5 22. Bxe5 Rhe8 23. O-O Rxe5 24. Bf5 Rg8 25. h4 h6 26. Rce1 Nxc4 27. b3 Ne3 28. Rf3 Rxf5 29. Rfxe3 Kc8 30. Re8+ Rxe8 31. Rxe8+ Kd7 32. Rb8 hxg5 33. h5 g4 34. h6 Rh5 35. Rxb7 Rxh6 36. Rxa7 f5 37. Ra5 f4 38. Rf5 f3 39. Rf4 Rg6 40. Kf2 g3+ |
| ECO B02 in 1985 play it! weyerstrass defeats white's reijnecker in 36 moves | 1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Nxd5 Qxd5 5. c3 e5 6. h3 Nc6 7. Qb3 Qe4+ 8. Ne2 Be7 9. Qd1 Bf5 10. b4 a5 11. b5 Nb8 12. a4 Nd7 13. d4 Rd8 14. Be3 Bh4 15. Ra2 Qxe3 16. g3 Bxg3 17. fxg3 Nc5 18. Qd2 Nd3+ |
| ECO B02 in 1977 play it! weyerstrass defeats white's voortman in 98 moves | 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. f4 dxe5 6. fxe5 Bf5 7. Bd3 Bxd3 8. Qxd3 c5 9. d5 e6 10. Nc3 Qh4+ 11. g3 Qxc4 12. Qxc4 Nxc4 13. Nf3 Be7 14. b3 Nb6 15. d6 Bd8 16. Be3 N6d7 17. Ne4 b6 18. O-O Nc6 19. Bf4 h6 20. h4 f6 21. exf6 Nxf6 22. d7+ Kxd7 23. Rad1+ Ke7 24. Nxf6 gxf6 25. Rd6 Nd4 26. Nxd4 cxd4 27. Rxd4 e5 28. Re4 Bc7 29. Bd2 Bd6 30. Rc4 Bc5+ 31. Kg2 Rad8 32. Bb4 Bxb4 33. Rxb4 Rd2+ 34. Rf2 Rhd8 35. a4 Ke6 36. Kf3 R8d3+ 37. Kg2 f5 38. Rxd2 Rxd2+ 39. Kf3 Rd3+ 40. Kf2 Kd5 41. Rb5+ Ke4 42. b4 Rd2+ 43. Kg1 Rd5 44. Rxd5 Kxd5 45. Kf2 Kd4 46. Kf3 Kd3 47. g4 e4+ 48. Kf4 fxg4 49. Kxg4 e3 |
| ECO B02 in 1991 play it! weyerstrass defeats white's van lingen g in 42 moves | 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. d4 e6 5. Nf3 c5 6. Bb5 Nc6 7. Be3 cxd4 8. Nxd4 Ncxe5 9. Nxe6 fxe6 10. Qh5+ Ng6 11. O-O Bd6 12. Rfe1 O-O 13. Nxd5 Rf5 14. Qg4 Nde5 15. Qd4 Nf3+ 16. gxf3 Rxd5 17. Qc4 Ne5 18. Qe2 Qh4 19. f4 Ng4 20. f3 Nxe3 21. Qxe3 Bc5 |
| ECO B02 in 1977 play it! weyerstrass defeats white's jacobson in 48 moves | 1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Nf3 g6 5. d4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. O-O c5 9. Re1 Qc7 10. Qe2 Nc6 11. Bb2 Bg4 12. Bd5 cxd4 13. Bxc6 Qxc6 14. Ne5 Bxe2 15. Nxc6 bxc6 16. Rxe2 dxc3 17. Ba3 Rfe8 18. Bxe7 Rab8 19. Bd6 Rxe2 20. Bxb8 Rxc2 21. Bxa7 Rb2 22. Be3 c2 23. Re1 Rb1 24. Kf1 Bc3 |
| ECO B02 in 1980 play it! weyerstrass defeats white's van der berg j in 72 moves | 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 e6 6. d4 b6 7. Nxd5 exd5 8. Be3 bxc5 9. dxc5 c6 10. Qa4 a5 11. Nf3 Ba6 12. Rc1 Bxf1 13. Kxf1 Na6 14. a3 Rb8 15. b4 Qc8 16. Bd2 axb4 17. axb4 Qb7 18. g3 Nxb4 19. Kg2 Nd3 20. Rb1 Qa8 21. Qg4 Rxb1 22. Rxb1 Nxc5 23. Bb4 Ne6 24. Bxf8 Rxf8 25. Nd4 h5 26. Qd1 g6 27. Qd2 Qa7 28. Ne2 Ke7 29. Qb4+ Qc5 30. Qh4+ f6 31. Rc1 Qb5 32. Nf4 Nxf4+ 33. gxf4 Qe2 34. h3 d4 35. exf6+ Rxf6 36. f5 gxf5 |
| ECO B02 in 1977 play it! weyerstrass defeats white's dank by checkmate in 64 moves | 1. e4 Nf6 2. Nc3 d5 3. d3 dxe4 4. dxe4 Qxd1+ 5. Kxd1 e5 6. h3 Bc5 7. Be3 Nbd7 8. Bb5 c6 9. Bd3 Bxe3 10. fxe3 b5 11. b4 a5 12. Rb1 axb4 13. Rxb4 Nc5 14. Kd2 Be6 15. Rb2 O-O 16. Nf3 Nfd7 17. g4 Rfd8 18. Ke2 Ra3 19. Ng5 Rxc3 20. Nxe6 fxe6 21. Rd1 Nxd3 22. cxd3 Nc5 23. Rbd2 Na4 24. d4 Ra3 25. Kf3 Nc3 26. dxe5 Rf8+ 27. Kg2 Nxd1 28. Rxd1 Rxa2+ 29. Kg3 g5 30. h4 Raf2 31. hxg5 R8f3+ 32. Kh4 Rh2# |
| ECO B02 in 1989 play it! weyerstrass defeats white's kos in 106 moves | 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. d4 e6 5. Nf3 c5 6. Ne2 cxd4 7. Nexd4 Nc6 8. Bb5 Qb6 9. O-O Bc5 10. c3 Bxd4 11. Bxc6 Bxf2+ 12. Rxf2 Qxc6 13. Qe2 Qc4 14. Qe3 Qe4 15. Qg5 Qg6 16. Qf4 O-O 17. Bd2 Nc5 18. Nh4 Qe4 19. Qg3 Qd3 20. Qg4 Qe4 21. Qg3 h6 22. Be3 b6 23. Rf4 Qh7 24. Rg4 Ba6 25. Nf3 Ne4 26. Qh4 Be2 27. Bxh6 g6 28. Bxf8 Qxh4 29. Rxh4 Rxf8 30. Re1 Bb5 31. Nd4 Bd7 32. Re3 Kg7 33. Nf3 Rc8 34. h3 b5 35. Rg4 a5 36. Ng5 Nxg5 37. Rxg5 d4 38. cxd4 Rc2 39. Rgg3 Rxb2 40. a3 Bc6 41. Kf1 Bd5 42. Re2 Bc4 43. Re3 Ra2 44. Ke1 Bxe2 45. Rxe2 Rxa3 46. Rb2 b4 47. Ke2 b3 48. Kd3 a4 49. Kc3 Ra1 50. Kb4 Kh6 51. Rf2 Ra2 52. Rf1 b2 53. Kc3 Ra1 |
| ECO B03 in 1977 play it! weyerstrass defeats white's nn in 66 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Be2 Nb4 10. Rc1 c5 11. Nf3 Bg4 12. b3 cxd4 13. Nxd4 Bxe2 14. Qxe2 Be7 15. O-O O-O 16. Rfd1 Qc7 17. Nf3 a6 18. Ne4 Rad8 19. a3 Nc6 20. Nd6 Nxe5 21. c5 Nxf3+ 22. Qxf3 Nd5 23. Bd4 Bxd6 24. cxd6 Qd7 25. Qg3 f6 26. Rf1 e5 27. Bb2 Qxd6 28. Rfd1 Qb6+ 29. Kh1 Nf4 30. b4 Ne2 31. Qb3+ Kh8 32. Rxd8 Rxd8 33. Qd5 Nxc1 |