| ECO A05 in 1992 play it! colias billy defeats white's medin n in 76 moves | 1. Nf3 Nf6 2. d4 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. g3 e5 8. Bg2 e4 9. Ng5 e3 10. Nde4 Ng4 11. f4 h6 12. Nh3 Bf5 13. Nc3 c6 14. Qb3 O-O 15. O-O Re8 16. Rad1 Qc7 17. Qa2 a5 18. b3 Nd7 19. Qb2 Ndf6 20. b4 Nf2 21. Nxf2 exf2+ 22. Rxf2 Ng4 23. e4 Nxf2 24. Kxf2 axb4 25. axb4 Be6 26. Bf1 Bg4 27. Rd2 f6 28. c5 b6 29. Bc4+ Kh8 30. Kg1 bxc5 31. bxc5 dxc5 32. d5 cxd5 33. Nxd5 Qa5 34. Ba2 Rxe4 35. Nc3 Re3 36. Qb7 Rxc3 37. Rb2 Rc1+ 38. Kg2 Qxa2 |
| ECO A05 in 1990 play it! colias billy defeats white's schroder in 80 moves | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 O-O 5. Nc3 d6 6. d4 Nc6 7. O-O a6 8. e4 Bg4 9. Be3 Nd7 10. h3 Bxf3 11. Bxf3 e5 12. d5 Nd4 13. Bg2 c5 14. dxc6 bxc6 15. b3 Qa5 16. Rc1 Rab8 17. Qd2 Qd8 18. Kh2 a5 19. Ne2 c5 20. Nc3 Nb6 21. Bxd4 exd4 22. Nb5 a4 23. b4 Nxc4 24. Rxc4 Rxb5 25. bxc5 dxc5 26. Rxa4 Qb6 27. f4 Rb2 28. Qd3 Qc6 29. Ra6 Qb7 30. Rg1 Rc8 31. Kh1 c4 32. Qa3 c3 33. e5 Rxg2 34. Rxg2 c2 35. Qc1 Qxa6 36. Rxc2 Rxc2 37. Qxc2 Qf1+ 38. Kh2 d3 39. Qc8+ Bf8 40. e6 Qe2+ |
| ECO A05 in 1988 play it! colias billy defeats white's pope r in 104 moves | 1. Nf3 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. Nc3 Na6 7. Bg5 c5 8. d5 Nc7 9. e4 Bg4 10. h3 Bxf3 11. Bxf3 Rb8 12. a4 Nd7 13. Qc1 Re8 14. Nb5 Nxb5 15. axb5 Qb6 16. c4 a6 17. Be2 axb5 18. cxb5 e6 19. Bc4 Ne5 20. Be3 Nxc4 21. Qxc4 Bxb2 22. Ra2 Bg7 23. Rb1 exd5 24. exd5 Ra8 25. Kg2 Qd8 26. b6 Qd7 27. Ra7 Rxa7 28. bxa7 Ra8 29. Qb5 Qxb5 30. Rxb5 Rxa7 31. Rb6 Bf8 32. Bf4 f6 33. Bxd6 Ra6 34. Bc7 Rxb6 35. Bxb6 Bd6 36. Kf3 c4 37. Ke3 Bb4 38. Bd4 Kf7 39. Bb2 Bc5+ 40. Ke2 b5 41. f3 b4 42. Kd1 Bd6 43. f4 h5 44. Kc2 h4 45. gxh4 Bxf4 46. h5 gxh5 47. Bd4 Be5 48. Bc5 b3+ 49. Kb1 c3 50. Ba3 c2+ 51. Kc1 Bf4+ 52. Kb2 c1=Q+ |
| ECO A05 in 1988 play it! colias billy defeats white's yakich b in 104 moves | 1. Nf3 Nf6 2. d4 g6 3. Nc3 c5 4. e4 cxd4 5. Nxd4 d6 6. Be2 Bg7 7. Be3 O-O 8. Qd2 Nc6 9. O-O-O Bd7 10. f3 Rc8 11. Nxc6 bxc6 12. Bh6 Bh8 13. Bxf8 Qxf8 14. g4 Be6 15. g5 Nd7 16. h4 Nc5 17. h5 Rb8 18. Rh4 Rxb2 19. Rdh1 Qb8 20. hxg6 Qb4 21. gxh7+ Kf8 22. e5 Qa3 23. Kd1 Bf5 24. exd6 Bxc2+ 25. Ke1 Qxc3 26. Qxc3 Bxc3+ 27. Kf1 Bh8 28. dxe7+ Kxe7 29. Rh6 Ne6 30. Bc4 Bg6 31. R1h4 Nxg5 32. Rf4 Rc2 33. Bb3 Rc5 34. Rb4 Rb5 35. Rf4 Rb8 36. Rh2 Bd3+ 37. Kg2 Be5 38. Rg4 Bxh2 39. Rxg5 Bf4 40. Rg8 Bxh7 41. Rg7 Rg8 42. Rxg8 Bxg8 43. Kh3 Bh7 44. Kg4 Bd2 45. Bc4 f5+ 46. Kg3 Kf6 47. Kf2 f4 48. Ke2 Be3 49. Bb3 Bf5 50. a4 a5 51. Kd1 Be6 52. Bc2 Ke5 |
| ECO A05 in 1987 play it! colias billy defeats white's ikeuchi c in 76 moves | 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bg4 5. d3 Nbd7 6. Nbd2 e5 7. e4 dxe4 8. dxe4 Bc5 9. h3 Bh5 10. g4 Bg6 11. Nh4 O-O 12. Nf5 Qc7 13. Qe2 Rfe8 14. Nc4 Rad8 15. a4 Bxf5 16. gxf5 h6 17. Kh1 b5 18. axb5 cxb5 19. Ne3 Qc6 20. Rg1 a6 21. Ng4 Nxg4 22. hxg4 Be7 23. Bf3 Bg5 24. Bxg5 hxg5 25. Kg2 Nc5 26. Rad1 Na4 27. c3 Qc4 28. Qe3 Rxd1 29. Rxd1 Nxb2 30. Qxg5 f6 31. Qh5 Qf7 32. Ra1 Qxh5 33. gxh5 Rc8 34. Rxa6 Rxc3 35. Ra2 Nd3 36. Bd1 Kh7 37. f3 b4 38. Be2 b3 |
| ECO A04 in 1985 play it! colias billy defeats white's gallagher joseph in 66 moves | 1. Nf3 c5 2. e4 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e6 7. Qd2 a6 8. O-O-O h6 9. Be3 Be7 10. f3 Nxd4 11. Bxd4 e5 12. Be3 Be6 13. Kb1 Rc8 14. Nd5 Nxd5 15. exd5 Bd7 16. Bd3 b5 17. f4 Bf6 18. Rhf1 O-O 19. Rde1 Re8 20. fxe5 Rxe5 21. Bf4 Rxe1+ 22. Qxe1 Qe7 23. Qa5 Be5 24. Bd2 Qh4 25. Qxa6 Qd4 26. Bc3 Qxd5 27. Re1 Ra8 28. Rxe5 dxe5 29. Qb6 Qxa2+ 30. Kc1 Qd5 31. b3 Qxg2 32. Qd6 Qg1+ 33. Kd2 Qg5+ |
| ECO A05 in 1987 play it! colias billy defeats white's sandrin a in 28 moves | 1. Nf3 Nf6 2. d4 d5 3. c4 c6 4. Nc3 e6 5. cxd5 exd5 6. Bg5 Bf5 7. Qb3 Nbd7 8. Qxb7 Rb8 9. Qxc6 Rxb2 10. Bxf6 gxf6 11. Nxd5 Qa5+ 12. Qc3 Qxc3+ 13. Nxc3 Bb4 14. Rc1 Rb1 |
| ECO A05 in 1989 play it! colias billy defeats white's jytovsky m in 30 moves | 1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 O-O 5. g3 d6 6. Bg2 e5 7. Nc3 Nc6 8. O-O Bf5 9. d3 Qd7 10. a3 Bh3 11. Bxh3 Qxh3 12. e4 Ng4 13. Nd5 f5 14. Ne3 fxe4 15. Nxg4 exf3 |
| ECO A09 in 1988 play it! colias billy defeats white's marchand erich in 70 moves | 1. Nf3 d5 2. c4 c6 3. cxd5 cxd5 4. d4 Nf6 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bd3 Bxd3 9. Qxd3 Be7 10. O-O O-O 11. h3 a6 12. a3 Na5 13. b4 Nc4 14. Rfb1 b5 15. a4 Qb6 16. a5 Qb7 17. Nd2 Rac8 18. Nf3 Ne4 19. Ne2 Rfd8 20. Ra2 Rc6 21. Ne1 Rdc8 22. f3 Nf6 23. Bg3 Nh5 24. Bf2 Bd6 25. f4 Nf6 26. Ng3 Qe7 27. Qb3 Ne4 28. Nxe4 dxe4 29. Re2 Qc7 30. g4 Be7 31. Ng2 Bf6 32. Rd1 Qd7 33. Kh2 Qd5 34. Qa2 Nd6 35. Qb1 Be7 |
| ECO A04 in 1992 play it! colias billy defeats white's mcghee j in 46 moves | 1. Nf3 c5 2. g3 Nc6 3. Bg2 e5 4. d3 g6 5. O-O Bg7 6. e4 d6 7. Nc3 Nge7 8. Ne2 d5 9. c3 dxe4 10. dxe4 Be6 11. Qc2 h6 12. Be3 Qa5 13. Nd2 b6 14. f4 Qa6 15. Rf2 O-O 16. f5 gxf5 17. exf5 Bxf5 18. Rxf5 Qxe2 19. Rf3 Rad8 20. Bf1 Rxd2 21. Qxd2 Qxf3 22. Bxh6 Rd8 23. Qg5 Qf6 |
| ECO A04 in 1987 play it! colias billy defeats white's lovelace r by checkmate in 74 moves | 1. Nf3 c5 2. b3 d6 3. c4 Nf6 4. Bb2 Bg4 5. e3 Nbd7 6. d4 Rc8 7. Be2 e6 8. O-O Be7 9. Nc3 O-O 10. Rc1 b6 11. Nd2 Bxe2 12. Qxe2 Re8 13. Nf3 d5 14. cxd5 exd5 15. dxc5 bxc5 16. Rfd1 Nb6 17. Ba1 Bf8 18. Qd2 Qe7 19. Re1 Red8 20. Ne2 Ne4 21. Qd3 Rc6 22. Nc3 f5 23. Qb1 Rh6 24. Qb2 Qe8 25. Ne2 Rd7 26. Nf4 Bd6 27. Ne5 Re7 28. Nf3 d4 29. Nd3 Qh5 30. exd4 Bxh2+ 31. Kf1 Bc7 32. Nde5 Qh1+ 33. Ng1 Rh2 34. Nd3 Qxg2+ 35. Ke2 Nxf2+ 36. Kd2 Ne4+ 37. Ke3 Nd5# |
| ECO A16 in 1989 play it! colias billy defeats white's long in 76 moves | 1. c4 Nf6 2. Nc3 g6 3. d3 Bg7 4. g3 d6 5. Bg2 e5 6. e3 O-O 7. Nge2 Nc6 8. O-O Be6 9. a3 Qd7 10. b4 Rab8 11. b5 Ne7 12. a4 Bh3 13. Ba3 Rfe8 14. c5 d5 15. d4 e4 16. Nf4 Bxg2 17. Kxg2 h5 18. Rc1 c6 19. Rc2 Nf5 20. Qe2 Bh6 21. Qd2 Bxf4 22. exf4 e3 23. Qd3 exf2 24. Bc1 Ng4 25. Nd1 Re1 26. h3 Nf6 27. Nxf2 Rbe8 28. bxc6 bxc6 29. Rb2 Rxf1 30. Kxf1 Ne4 31. a5 Nfxg3+ 32. Kg2 Qe7 33. a6 Nf5 34. Rb7 Qh4 35. Nh1 Qe1 36. Bb2 Nh4+ 37. Kh2 Nd2 38. Ng3 Ndf3+ |
| ECO A20 in 1989 play it! colias billy defeats white's cohen l in 70 moves | 1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. b3 d5 5. e3 Bg4 6. f3 Bf5 7. Ne2 Na6 8. O-O Bd3 9. Bb2 Bd6 10. cxd5 cxd5 11. Rf2 Nb4 12. Na3 Bg6 13. Nc1 Qa5 14. d4 exd4 15. exd4 O-O 16. Bh3 Rfe8 17. Nb1 Bxb1 18. Rxb1 Nxa2 19. Ra1 Re1+ 20. Qxe1 Qxe1+ 21. Kg2 Nxc1 22. Rxc1 Qe7 23. Rfc2 g6 24. Kf2 Re8 25. Bf1 Qe3+ 26. Kg2 Qxb3 27. Ba1 Ba3 28. Rc3 Qa4 29. R1c2 Bb4 30. Rc7 Qxa1 31. Rxb7 Qxd4 32. Bb5 Re5 33. g4 Nxg4 34. fxg4 Qxg4+ 35. Kf2 Qf5+ |
| ECO A21 in 1989 play it! colias billy defeats white's cohen l in 62 moves | 1. c4 e5 2. Nc3 Bb4 3. Nf3 Bxc3 4. dxc3 d6 5. Qc2 f5 6. Bg5 Nf6 7. e4 fxe4 8. Bxf6 Qxf6 9. Qxe4 Nd7 10. b4 Qe7 11. Be2 Nf6 12. Qh4 e4 13. Nd4 c5 14. Nb3 O-O 15. O-O Be6 16. Nd2 Bf7 17. a3 Rae8 18. bxc5 dxc5 19. Nb3 b6 20. Rad1 Qe5 21. Rc1 Rd8 22. h3 Rd6 23. g4 Nd7 24. g5 Qe7 25. Rfd1 Rg6 26. Kh1 Rxg5 27. Rxd7 Rg1+ 28. Rxg1 Qxh4 29. Rg3 e3 30. Rxe3 Be6 31. Rxe6 Qxh3+ |
| ECO A20 in 1988 play it! colias billy defeats white's hanken jerome by checkmate in 48 moves | 1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. Nc3 Bb4 5. Nf3 d6 6. O-O O-O 7. Qb3 Na6 8. d4 e4 9. Ne1 Bxc3 10. Qxc3 Bf5 11. Nc2 Qd7 12. Bg5 Ne8 13. f3 exf3 14. Bxf3 Bg6 15. e4 d5 16. exd5 cxd5 17. Bxd5 Nd6 18. Ne3 Rac8 19. Qb3 Nc7 20. c5 Ne4 21. Rad1 Nxg5 22. Bxb7 Rb8 23. c6 Be4 24. cxd7 Nh3# |
| ECO A16 in 1989 play it! colias billy defeats white's smith daniel in 122 moves | 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. e3 c6 6. d4 d5 7. b3 Be6 8. c5 Qc8 9. Nge2 Bh3 10. O-O Bxg2 11. Kxg2 Nbd7 12. f4 b6 13. cxb6 axb6 14. a4 Qb7 15. Ba3 Rfe8 16. h3 b5 17. axb5 cxb5 18. Bb4 Rxa1 19. Qxa1 Ra8 20. Qb1 Nb8 21. Kh2 Na6 22. Bc5 b4 23. Na4 Ne4 24. Qd3 Rc8 25. Rc1 Rc6 26. Kg2 Bf8 27. g4 Naxc5 28. Nxc5 Nxc5 29. dxc5 e6 30. f5 Rxc5 31. Rxc5 Bxc5 32. fxe6 fxe6 33. Nf4 Kf7 34. h4 Bd6 35. Nh3 Qe7 36. g5 Bb8 37. h5 Be5 38. hxg6+ hxg6 39. Qd2 Kg7 40. Qe1 Qf8 41. Qh4 Kg8 42. Nf2 Qf5 43. Ng4 Qe4+ 44. Kf2 Bg7 45. Kg3 Qb1 46. Kg2 Qxb3 47. Qg3 e5 48. Nf6+ Bxf6 49. gxf6 Qc2+ 50. Kg1 Qf5 51. Qh4 b3 52. Qb4 Qg5+ 53. Kh2 Qxf6 54. Qxb3 Qf2+ 55. Kh1 Qf3+ 56. Kg1 Kh7 57. Qc3 Qe4 58. Qa3 Kh6 59. Qf8+ Kh5 60. Qh8+ Kg4 61. Qc8+ Kg3 |
| ECO A21 in 1987 play it! colias billy defeats white's wheatley d in 140 moves | 1. c4 e5 2. Nc3 Bb4 3. Nf3 Bxc3 4. bxc3 d6 5. d4 e4 6. Ng5 f5 7. g3 Nf6 8. Bg2 O-O 9. O-O Nc6 10. e3 h6 11. Nh3 Na5 12. c5 d5 13. f3 g5 14. fxe4 fxe4 15. Nf2 Qe8 16. Qe2 Bd7 17. a4 Qh5 18. Qxh5 Nxh5 19. Bh3 Bxh3 20. Nxh3 Rf6 21. Rxf6 Nxf6 22. Rb1 c6 23. Nf2 Rf8 24. h3 Rf7 25. g4 Nd7 26. Kg2 b6 27. cxb6 Nxb6 28. Nd1 Nac4 29. Nb2 Nxb2 30. Rxb2 Nxa4 31. Rb8+ Kg7 32. Rc8 Nb6 33. Rxc6 Nc4 34. Ra6 Rb7 35. Kf2 Kg8 36. Ba3 Rf7+ 37. Ke2 Rf3 38. Bc1 Rxh3 39. Rxa7 Rh2+ 40. Kd1 h5 41. Ra8+ Kf7 42. Ra7+ Ke6 43. Ra6+ Kd7 44. Rg6 h4 45. Rxg5 Kc6 46. Rh5 Nb6 47. Ba3 Kb5 48. Bc5 Na4 49. Bb4 Kc4 50. Ke1 h3 51. Kf1 Nxc3 52. Bxc3 Kxc3 53. Kg1 Rg2+ 54. Kf1 Rxg4 55. Rxh3 Rg5 56. Ke2 Rg2+ 57. Kf1 Ra2 58. Rh5 Ra5 59. Ke2 Ra2+ 60. Kf1 Kd3 61. Rxd5 Kxe3 62. Rd8 Kd2 63. Rh8 Ra1+ 64. Kg2 e3 65. Kf3 Kd3 66. Re8 Rf1+ 67. Kg4 e2 68. d5 e1=Q 69. Rxe1 Rxe1 70. d6 Ke4 |
| ECO A11 in 1988 play it! colias billy defeats white's tutush d in 60 moves | 1. c4 c6 2. d4 d5 3. Nc3 Nf6 4. g3 dxc4 5. Bg2 Nbd7 6. a4 e5 7. dxe5 Nxe5 8. Qxd8+ Kxd8 9. f4 Ned7 10. Nh3 Bb4 11. O-O Nc5 12. Be3 Nb3 13. Rad1+ Ke7 14. Nf2 Ng4 15. Nxg4 Bxg4 16. Kf2 Rhe8 17. h3 Bf5 18. Ne4 a5 19. g4 Bxe4 20. Bxe4 Bc5 21. Bc2 b5 22. Bxc5+ Nxc5 23. axb5 cxb5 24. Rd5 Rac8 25. Rfd1 h6 26. Re5+ Kf8 27. Rh5 b4 28. Rd4 b3 29. Rxc4 Ne4+ 30. Rxe4 bxc2 |
| ECO A21 in 1989 play it! colias billy defeats white's bondari c by checkmate in 74 moves | 1. c4 e5 2. Nc3 Bb4 3. g3 Bxc3 4. bxc3 d6 5. Bg2 f5 6. d3 Nf6 7. Nf3 Nc6 8. Rb1 O-O 9. O-O Qe8 10. Nd2 f4 11. Ne4 Nxe4 12. Bxe4 Bh3 13. Bd5+ Kh8 14. Bg2 Bxg2 15. Kxg2 Ne7 16. f3 b6 17. g4 Qc6 18. Ba3 g5 19. Qb3 a6 20. d4 e4 21. d5 Qd7 22. Qd1 Rae8 23. Kh1 Ng6 24. Rb4 exf3 25. exf3 Re5 26. Bc1 Rfe8 27. Rb2 Qe7 28. Bd2 Re2 29. Rb1 Nh4 30. a4 a5 31. Ra1 Kg8 32. Rb1 Nxf3 33. Rxf3 Qe4 34. Qf1 Rxd2 35. Kg1 Qe2 36. Qh3 Re3 37. Qh6 Qg2# |
| ECO A10 in 1992 play it! colias billy defeats white's beelman bob in 54 moves | 1. c4 g6 2. g3 Bg7 3. Bg2 e5 4. Nc3 d6 5. e4 h5 6. h4 Nc6 7. d3 Nh6 8. Nge2 Bg4 9. f3 Be6 10. Nd5 O-O 11. Be3 Nd4 12. Qd2 Kh7 13. Bg5 f6 14. Nxd4 exd4 15. Nf4 Bd7 16. Bxh6 Bxh6 17. Qf2 c5 18. Bh3 b5 19. Bxd7 Qxd7 20. b3 f5 21. O-O fxe4 22. fxe4 bxc4 23. bxc4 Bxf4 24. gxf4 Qg4+ 25. Kh2 Rab8 26. Rad1 Rxf4 27. Qxf4 Rb2+ |