| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 125 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e6 11. O-O Ne7 12. Nc3 Nc6 13. Rd1 Rd8 14. d5 exd5 15. Nxd5 Kc8 16. Bf4 Ne5 17. b3 c6 18. Nc3 Bd6 19. Ne4 Bc7 20. Kg2 Rxd1 21. Rxd1 Rd8 22. Rxd8+ Kxd8 23. Nc5 Kc8 24. Ne6 g5 25. Bd2 Bd6 26. f4 Nf7 27. e4 Kd7 28. Ng7 gxf4 29. gxf4 Bc5 30. Kf3 Bd4 31. Nf5 c5 32. Be3 Bxe3 33. Nxe3 Ke6 34. h3 b6 35. f5+ Kd6 36. Kf4 Ne5 37. Nd5 Nd7 38. Nc3 a6 39. Nd5 b5 40. cxb5 axb5 41. a3 c4 42. bxc4 bxc4 43. a4 Kc5 44. Ke3 h6 45. h4 h5 46. a5 Kb5 47. Kd4 Kxa5 48. Kxc4 Ka6 49. Nf4 Kb7 50. Kd5 Kc7 51. Nxh5 Kd8 52. Kd6 Ke8 53. Ng7+ Kf7 54. Kxd7 Kg8 55. Ne6 Kh8 56. e5 fxe5 57. f6 Kg8 58. Ng5 Kf8 59. h5 e4 60. h6 Kg8 61. Ke7 Kh8 62. f7 e3 63. f8=Q# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j in 121 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 Re8 11. Be3 e6 12. Nc3 Ne7 13. O-O-O Nf5 14. Bf4 g5 15. e4 gxf4 16. exf5 exf5 17. Nd5 Re2 18. Nxf6+ Kc6 19. Rhe1 f3 20. Rf1 Bg7 21. Nd5 Re4 22. Nb4+ Kd7 23. Nc2 Rhe8 24. Rd3 Bh6+ 25. Kb1 f4 26. Rxf3 R8e6 27. d5 Re7 28. b3 a5 29. h3 a4 30. c5 axb3 31. Rxb3 R7e5 32. Rd1 fxg3 33. fxg3 Bf8 34. Rb5 Kc8 35. Ra5 Be7 36. Ra8+ Kd7 37. Ra7 Bxc5 38. Rxb7 Kd6 39. Rb8 Re8 40. Rb3 R8e5 41. Rb7 Re2 42. Rb8 Re8 43. Rxe8 Rxe8 44. a3 Re5 45. Nd4 Bxd4 46. Rxd4 Rh5 47. h4 Rxd5 48. Rxd5+ Kxd5 49. Kb2 Kd4 50. g4 c6 51. g5 Ke4 52. h5 Ke5 53. Kc3 Kf5 54. a4 Kxg5 55. a5 Kxh5 56. a6 Kg4 57. a7 h5 58. a8=Q h4 59. Qc8+ Kg3 60. Qc7+ Kg4 61. Qg7+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 95 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e5 11. dxe5 fxe5 12. Nc3 Bb4 13. Bd2 Nf6 14. a3 Bc5 15. O-O-O Kc8 16. Be1 b6 17. b4 Bd6 18. f3 a6 19. e4 Rd8 20. Bf2 a5 21. c5 axb4 22. axb4 bxc5 23. bxc5 Be7 24. Rxd8+ Bxd8 25. Rd1 Be7 26. Nd5 Nxd5 27. Rxd5 Ra3 28. Rxe5 Bf6 29. Rf5 Ra2 30. Be3 Rxh2 31. e5 Bd8 32. Rf7 Re2 33. Bd4 Bg5+ 34. f4 Bh6 35. c6 Kd8 36. Kd1 Rh2 37. e6 Rh1+ 38. Ke2 Rc1 39. Rxc7 Rc2+ 40. Kf3 Ke8 41. Ke4 Re2+ 42. Kd5 Re4 43. Kxe4 Bg5 44. fxg5 h5 45. Rd7 Kf8 46. c7 Kg8 47. c8=Q+ Kh7 48. Rxg7# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 113 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 Re8 11. Nc3 Kc8 12. Be3 e6 13. O-O-O Ne7 14. f4 Nf5 15. Bf2 Bb4 16. Ne4 Rd8 17. a3 Be7 18. g4 Nh6 19. h3 Nf7 20. c5 h5 21. e3 f5 22. gxf5 exf5 23. Nd2 Bf6 24. Nc4 Rhe8 25. Ne5 Nxe5 26. fxe5 Be7 27. h4 g6 28. Rhg1 Rg8 29. Rg2 Rg7 30. Rdg1 Rdg8 31. e6 c6 32. Kd2 Bf6 33. Bg3 Re7 34. Bd6 Rxe6 35. Rxg6 Rxg6 36. Rxg6 Kd7 37. Rh6 Bxh4 38. Rxh5 Be7 39. Bxe7 Rxe7 40. Rxf5 Rh7 41. e4 Rh2+ 42. Kc3 Ke6 43. Re5+ Kf6 44. Re8 Rh7 45. d5 Rh3+ 46. Kd4 cxd5 47. exd5 Rh4+ 48. Re4 Rxe4+ 49. Kxe4 Ke7 50. Ke5 Kd7 51. d6 b5 52. c6+ Kxc6 53. Ke6 a5 54. d7 Kc5 55. d8=Q a4 56. Qd6+ Kc4 57. Qd5# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 103 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e5 11. dxe5 fxe5 12. Nc3 Nf6 13. Bg5 h6 14. O-O-O+ Kc8 15. Bxf6 gxf6 16. Kc2 Bc5 17. f4 Re8 18. Ne4 Be7 19. fxe5 fxe5 20. Rd5 Bg5 21. Rf1 a6 22. Rf7 b6 23. Rdd7 Bd8 24. c5 Re6 25. cxb6 Rc6+ 26. Kd3 Rxb6 27. Rxd8+ Kxd8 28. Rf8+ Kd7 29. Rxa8 Rxb2 30. Rxa6 c6 31. Ra7+ Ke6 32. Rc7 Rxa2 33. Rxc6+ Kf5 34. Rxh6 Rb2 35. Rf6+ Kg4 36. Rg6+ Kf5 37. Rg5+ Ke6 38. h4 Ra2 39. g4 Ra3+ 40. Nc3 Rb3 41. h5 Rb7 42. Rg6+ Kf7 43. Ke4 Rb3 44. Nd5 Rb2 45. e3 Rd2 46. Kxe5 Rg2 47. g5 Rb2 48. Rf6+ Kg8 49. h6 Rb8 50. g6 Rf8 51. Ne7+ Kh8 52. Rxf8# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 117 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e5 11. dxe5 fxe5 12. Nc3 Bb4 13. Bd2 Nf6 14. a3 Bc5 15. O-O-O Kc8 16. Be1 Re8 17. h4 b6 18. b4 Bd4 19. Nd5 Nxd5 20. cxd5 b5 21. e3 Bb6 22. Kd2 a5 23. Ke2 Kb7 24. e4 axb4 25. Bxb4 Rec8 26. Rc1 c5 27. dxc6+ Rxc6 28. Rxc6 Kxc6 29. Rd1 Bd4 30. f4 g6 31. Kf3 Ra4 32. g4 Bb2 33. Rd6+ Kc7 34. Rd3 exf4 35. Kxf4 h6 36. h5 Ra6 37. e5 Re6 38. hxg6 Rxg6 39. Rd5 Ra6 40. Rxb5 Bxa3 41. Bxa3 Rxa3 42. Rd5 Ra4+ 43. Kf5 Ra2 44. e6 Rf2+ 45. Kg6 Re2 46. Kf7 Kc6 47. Ra5 Kc7 48. e7 h5 49. e8=Q Rxe8 50. Kxe8 hxg4 51. Ra6 g3 52. Rg6 g2 53. Ke7 g1=R 54. Rxg1 Kc6 55. Rg5 Kc7 56. Rg6 Kb7 57. Kd7 Ka7 58. Kc7 Ka8 59. Ra6# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 133 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 Re8 11. Nc3 g5 12. f4 h6 13. O-O gxf4 14. Bxf4 e5 15. Be3 b6 16. d5 Kc8 17. Ne4 Be7 18. Kg2 Rd8 19. Rad1 Rh7 20. c5 bxc5 21. Nxc5 Rd6 22. Ne4 Ra6 23. a3 Rg7 24. Rc1 Kb8 25. Rc4 Ra5 26. Nc3 Bd6 27. a4 Rg6 28. b4 Ra6 29. b5 Ra5 30. Bd2 a6 31. Rb1 Ka8 32. e4 h5 33. bxa6 Rxa6 34. Nb5 Rg7 35. Nxd6 Rxd6 36. Ba5 Rdd7 37. Rc6 Rd6 38. Rxc7 Rxc7 39. Bxc7 Rd7 40. Rb8+ Ka7 41. d6 Nh6 42. Rd8 Rxd8 43. Bxd8 Nf7 44. Bc7 Kb7 45. a5 f5 46. exf5 e4 47. Kf1 Ne5 48. Ke2 h4 49. gxh4 Nd7 50. Ke3 Nf6 51. h5 Kc6 52. a6 Nd5+ 53. Kd4 Kb5 54. Kxd5 Ka4 55. a7 e3 56. a8=Q+ Kb3 57. Qe8 Kc2 58. Qxe3 Kb1 59. h6 Kc2 60. d7 Kb2 61. Qe2+ Kb3 62. Qd3+ Kb2 63. Qd2+ Kb1 64. Qd3+ Kb2 65. d8=Q Kc1 66. Qd6 Kb2 67. Q6a3# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 97 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 Re8 11. O-O e5 12. dxe5 Rxe5 13. Nc3 Bb4 14. Rd1+ Kc8 15. Nd5 Bd6 16. Kf1 Rh5 17. h4 Ne7 18. Nxe7+ Bxe7 19. e4 Bd6 20. Kg2 Rd8 21. Be3 Re5 22. f3 b6 23. b3 h6 24. a3 Ree8 25. Rd5 c6 26. Rd2 Be7 27. Rad1 Rxd2+ 28. Rxd2 f5 29. c5 Bxc5 30. Bxc5 bxc5 31. exf5 Re3 32. Rb2 c4 33. bxc4 Rxa3 34. g4 a5 35. g5 hxg5 36. hxg5 Re3 37. f6 gxf6 38. g6 Re7 39. f4 a4 40. Rb6 Kd8 41. Ra6 Rb7 42. Ra8+ Ke7 43. g7 Rb2+ 44. Kh3 Rb3+ 45. Kh2 Re3 46. g8=Q Rb3 47. Re8+ Kd7 48. Qf7+ Kd6 49. Qe7# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 109 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e5 11. dxe5 fxe5 12. Nc3 Nf6 13. Bg5 Kc8 14. O-O-O h6 15. Bxf6 gxf6 16. Nd5 Bc5 17. Nxf6 Bxf2 18. Ng4 Bd4 19. e3 Rg8 20. exd4 Rxg4 21. Rhf1 b6 22. dxe5 Rxc4+ 23. Kd2 Kd7 24. Rf6 Rd4+ 25. Ke2 Rxd1 26. Kxd1 Re8 27. Rxh6 Rxe5 28. Kd2 Rb5 29. b3 Ra5 30. a4 Re5 31. Kd3 Re6 32. Rxe6 Kxe6 33. Ke4 c5 34. h4 Kf6 35. g4 Kg7 36. Kf5 a6 37. Ke5 b5 38. axb5 axb5 39. Kd5 c4 40. bxc4 bxc4 41. Kxc4 Kf6 42. Kd5 Ke7 43. h5 Kf7 44. g5 Kf8 45. Ke6 Kg7 46. Ke7 Kh7 47. Kf8 Kh8 48. Kf7 Kh7 49. g6+ Kh6 50. g7 Kg5 51. g8=Q+ Kf5 52. Qe8 Kg5 53. Qe4 Kxh5 54. Kf6 Kh6 55. Qg6# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 109 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e5 11. dxe5 fxe5 12. Nc3 Nf6 13. Be3 Kc8 14. O-O-O b6 15. f3 Kb7 16. Nd5 Bd6 17. Kc2 Rhe8 18. a3 e4 19. Rhe1 Nxd5 20. cxd5 Rac8 21. b4 c6 22. Kb3 a6 23. f4 g6 24. dxc6+ Rxc6 25. Rc1 Rd8 26. Rxc6 Kxc6 27. Rd1 b5 28. h3 Be7 29. Rc1+ Kb7 30. a4 Rd7 31. axb5 axb5 32. g4 Rc7 33. Rxc7+ Kxc7 34. Kc3 Kc6 35. Kd4 Bxb4 36. Kxe4 Be7 37. Bd4 Bc5 38. f5 b4 39. f6 Bxd4 40. Kxd4 Kd7 41. g5 b3 42. Kc3 b2 43. Kxb2 Ke6 44. e4 Kd6 45. Kb3 Kd7 46. e5 Ke8 47. Kb4 h6 48. gxh6 Kd7 49. h7 Ke6 50. h8=Q Kxe5 51. f7+ Kf5 52. f8=Q+ Ke4 53. Qh4+ Ke3 54. Qff2+ Kd3 55. Qhd4# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 139 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 Re8 11. Nc3 Kc8 12. Be3 e6 13. O-O-O Ne7 14. Kb1 Nf5 15. Bc1 Rd8 16. d5 exd5 17. cxd5 Bc5 18. Na4 Be7 19. e4 Nd6 20. Nc5 Kb8 21. f3 f5 22. Bf4 g6 23. Ne6 Rd7 24. Rd4 fxe4 25. fxe4 Nb5 26. Rc4 Nd6 27. Rb4 Nf7 28. Ra4 Nd6 29. Rf1 Re8 30. Be3 a6 31. Rf3 h5 32. a3 Kc8 33. Ka1 Kb8 34. h3 Ka8 35. h4 Kb8 36. Rf4 Ka8 37. Ka2 Kb8 38. Rf3 Kc8 39. Rd4 Kb8 40. Nc5 Rdd8 41. Ra4 Kc8 42. Bf4 Nb5 43. Ne6 Rd7 44. Rb3 c6 45. Rc4 Bd6 46. dxc6 bxc6 47. Rxc6+ Bc7 48. Nc5 Nd4 49. Rb8+ Kxb8 50. Nxd7+ Kc8 51. Rxc7+ Kd8 52. Nc5 Re7 53. Rxe7 Kxe7 54. Nxa6 Kf7 55. b4 g5 56. hxg5 Ne2 57. b5 Nc3+ 58. Kb3 Nxb5 59. Nc5 Nd4+ 60. Kc4 Ne2 61. Be5 Ng1 62. Kd5 Kg6 63. a4 Nf3 64. a5 Kf7 65. a6 Nxg5 66. a7 Nf3 67. a8=Q Nd2 68. Qa7+ Kf8 69. Ke6 Nxe4 70. Qf7# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 109 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e6 11. Nc3 Ne7 12. e4 Nc6 13. Be3 Rd8 14. d5 Ne5 15. O-O-O Be7 16. Bxa7 Nxc4 17. Rd4 Nd6 18. f4 exd5 19. Rxd5 Ke6 20. Bf2 c6 21. Rd4 Kf7 22. Rhd1 b5 23. a4 bxa4 24. Rxa4 Ra8 25. Rxa8 Rxa8 26. Bc5 Ra1+ 27. Kc2 Rxd1 28. Kxd1 Nc4 29. Bxe7 Kxe7 30. b3 Ne3+ 31. Ke2 Nc2 32. Kd3 Ne1+ 33. Kc4 Kd6 34. Ne2 c5 35. h3 Nf3 36. Kd3 h6 37. Nc3 Ne1+ 38. Ke2 Nc2 39. Nb5+ Kc6 40. Kd3 Na1 41. Kc4 Nxb3 42. Na7+ Kb7 43. Kxb3 h5 44. e5 fxe5 45. fxe5 Kc7 46. Kc4 Kd7 47. Kd5 c4 48. e6+ Ke7 49. Nc8+ Ke8 50. Kd6 g6 51. e7 Kf7 52. Kd7 Kf6 53. e8=Q h4 54. Qe7+ Kf5 55. Nd6# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 97 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e5 11. dxe5 fxe5 12. Nc3 Nf6 13. Be3 Kc8 14. a3 Be7 15. O-O-O Ng4 16. Nd5 Bd8 17. f3 Nxe3 18. Nxe3 Bg5 19. Rd3 Rd8 20. Kc2 Rd4 21. b3 Rxd3 22. Kxd3 Kd7 23. Ke4 Ke6 24. Ng4 Bf6 25. Rd1 b6 26. h4 a5 27. Ne3 Rf8 28. Rd2 Be7 29. Nd5 Bd8 30. c5 bxc5 31. Ne3 Bf6 32. Nc4 Rb8 33. Rd3 Rb5 34. Rc3 g6 35. Rd3 h6 36. Ke3 a4 37. bxa4 Rb1 38. Nd2 Rb4 39. axb4 cxb4 40. a5 Be7 41. Ne4 b3 42. Rxb3 g5 43. a6 gxh4 44. gxh4 Bd8 45. a7 Bxh4 46. a8=Q Bg5+ 47. Kd3 Bf4 48. Qe8+ Kf5 49. Qf7# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j in 107 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 Re8 11. Nc3 g5 12. f4 h6 13. Bd2 e6 14. O-O-O Bb4 15. Rhf1 Rd8 16. a3 Bxc3 17. Bxc3 Ne7 18. d5 Rhf8 19. dxe6+ Kxe6 20. Rxd8 Rxd8 21. fxg5 hxg5 22. Rxf6+ Kd7 23. e4 Rh8 24. Rf7 Re8 25. Kc2 Ke6 26. Rf6+ Kd7 27. Kd3 b6 28. b4 Rh8 29. Rxb6 Rxh2 30. Rb7 Rf2 31. c5 Rf3+ 32. Kc4 Re3 33. Rxa7 Rxe4+ 34. Kd3 Rg4 35. Be5 Nd5 36. b5 Ke6 37. Bxc7 Nxc7 38. Rxc7 Rxg3+ 39. Kc4 Rg4+ 40. Kc3 Rg3+ 41. Kb4 Rg4+ 42. Ka5 Rg3 43. a4 g4 44. b6 Rb3 45. b7 g3 46. Ka6 Kd5 47. Rg7 Kc6 48. Rxg3 Rxg3 49. b8=Q Rg6 50. Qe8+ Kxc5+ 51. Qxg6 Kd4 52. a5 Ke3 53. Kb7 Kd4 54. Qg4+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 109 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e5 11. dxe5 fxe5 12. Nc3 Bb4 13. Bd2 Nf6 14. Rd1 Kc8 15. a3 Be7 16. O-O Rd8 17. Be3 b6 18. Rxd8+ Kxd8 19. f3 c6 20. b4 Kc7 21. Rd1 Rd8 22. Rxd8 Bxd8 23. Kf2 Be7 24. Bc1 a6 25. Bb2 a5 26. Na4 e4 27. bxa5 bxa5 28. Ke3 exf3 29. Kxf3 Kd7 30. e4 Ke6 31. c5 g5 32. Bc3 Nd7 33. Bxa5 Nxc5 34. Nxc5+ Bxc5 35. a4 h5 36. Bc3 Bg1 37. h3 c5 38. a5 Kd6 39. Bf6 Bd4 40. Bxg5 Kc6 41. Bf4 c4 42. e5 Kd5 43. a6 Ba7 44. Be3 Bb8 45. h4 Kc6 46. a7 Bd6 47. a8=Q+ Kc7 48. Qa7+ Kc6 49. Qa6+ Kc7 50. Qxd6+ Kc8 51. Qc5+ Kb8 52. e6 c3 53. e7 c2 54. e8=Q+ Kb7 55. Qcc6# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 89 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 Re8 11. Nc3 g5 12. f4 gxf4 13. Bxf4 e5 14. dxe5 fxe5 15. O-O-O+ Kc8 16. Bd2 Nf6 17. Rhf1 Re6 18. Be3 a6 19. Rf5 Rg8 20. Rdf1 Be7 21. Nd5 Ng4 22. Nxe7+ Rxe7 23. Bc5 Re6 24. Rf8+ Rxf8 25. Rxf8+ Kd7 26. Rf7+ Kc6 27. Be7 Nxh2 28. Rxh7 Nf1 29. Bd8 Nxg3 30. Rxc7+ Kd6 31. Rxb7 Re8 32. Bf6 Nxe2+ 33. Kc2 Kc5 34. b3 e4 35. Rc7+ Kb6 36. Rf7 e3 37. Kd1 Ng3 38. Bd4+ Ka5 39. Ke1 Ne4 40. Rb7 Re6 41. a3 Rd6 42. Be5 Rc6 43. Ke2 Rg6 44. Bc7+ Rb6 45. Bxb6# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 109 moves | 1. Nf3 d5 2. c4 d4 3. Qa4+ Nc6 4. g3 f6 5. Bg2 Bg4 6. Nxd4 Qxd4 7. Bxc6+ Bd7 8. Bxd7+ Qxd7 9. Qxd7+ Kxd7 10. d4 e5 11. dxe5 fxe5 12. Nc3 Nf6 13. Bg5 Kc6 14. O-O-O h6 15. Bd2 Bc5 16. f3 Rhd8 17. b3 a6 18. e4 Rd3 19. Rhf1 Rad8 20. Nd5 Nxd5 21. exd5+ Kd6 22. Kc2 Rd4 23. Bc3 Rxd1 24. Rxd1 b5 25. b4 Bd4 26. Bxd4 exd4 27. Rxd4 bxc4 28. Rxc4 Rf8 29. f4 g5 30. Kd3 gxf4 31. gxf4 Rf5 32. Ke4 Rxd5 33. Rxc7 Rd2 34. Rg7 Rxa2 35. Rg6+ Ke7 36. Rxh6 Rb2 37. Kf5 Rxb4 38. Rxa6 Rb2 39. h4 Rb5+ 40. Kg6 Rb2 41. Ra7+ Ke6 42. f5+ Ke5 43. f6 Ke6 44. f7 Rf2 45. Kg7 Rf6 46. Ra6+ Ke5 47. Rxf6 Kd4 48. h5 Ke4 49. h6 Kd3 50. f8=Q Kd4 51. Qd6+ Kc4 52. Qf4+ Kc5 53. h7 Kb5 54. h8=Q Kc5 55. Qh5# |
| ECO A20 in 2007 play it! ziegler z defeats black's boris the blade by checkmate in 93 moves | 1. c4 e5 2. g3 Nc6 3. Bg2 d6 4. b4 d5 5. b5 Nce7 6. cxd5 Nxd5 7. Bb2 Qd6 8. Nf3 e4 9. Ng5 Qb4 10. Qc2 f5 11. a4 Nge7 12. Ba3 Qd4 13. Bb2 Qb4 14. O-O h6 15. Nh3 Be6 16. f3 O-O-O 17. fxe4 fxe4 18. Nf4 c6 19. Nxe6 Re8 20. Bxe4 Qd6 21. Nxg7 Bxg7 22. Bxg7 Rhg8 23. Rf7 Rxg7 24. Bf5+ Kc7 25. Rxg7 Qe5 26. Rf7 Qxa1 27. bxc6 bxc6 28. Qe4 Kb8 29. Be6 Ka8 30. e3 Rb8 31. Rf1 Qb2 32. Qh7 Rh8 33. Qf7 Rb8 34. Qh5 Qc2 35. Qd1 Qe4 36. Bh3 Qd3 37. Qc1 Qe4 38. a5 Qd3 39. Be6 Qe4 40. Bd7 c5 41. Nc3 Nxc3 42. Qxc3 c4 43. Rf7 Rb1+ 44. Kf2 h5 45. Rxe7 Qh4 46. Bc6+ Kb8 47. Qh8# |
| ECO A20 in 2007 play it! ziegler z defeats black's boris the blade by checkmate in 91 moves | 1. c4 e5 2. g3 Nc6 3. Bg2 d6 4. b4 d5 5. b5 Nce7 6. Bb2 Qd6 7. cxd5 Nxd5 8. e4 Nb4 9. d4 exd4 10. a3 Be6 11. axb4 Qxb4+ 12. Qd2 Bc5 13. Ne2 Rd8 14. O-O Qxd2 15. Nxd2 Bb4 16. Nxd4 Bd7 17. N2f3 Bc5 18. Nb3 Bf8 19. Rfd1 Bxb5 20. Rxd8+ Kxd8 21. Rxa7 Ne7 22. Rxb7 Bc4 23. Ne5 Be6 24. Nd4 Kc8 25. Rb5 Bd7 26. Nxd7 Kxd7 27. Bh3+ f5 28. Nxf5 Nxf5 29. Bxf5+ Ke7 30. Be5 Ke8 31. Bxc7 Kf7 32. Be5 h6 33. f4 Be7 34. Rb7 Rd8 35. Bxg7 Rd1+ 36. Kf2 Rd2+ 37. Ke3 Rxh2 38. Bd4 Rg2 39. Bc5 Rxg3+ 40. Kd4 Kg8 41. Rxe7 h5 42. Be6+ Kh8 43. Bd6 Rg2 44. Be5+ Rg7 45. Rxg7 h4 46. Re7# |
| ECO A20 in 2007 play it! ziegler z defeats black's boris the blade by checkmate in 99 moves | 1. c4 e5 2. g3 Nc6 3. Bg2 d6 4. b4 d5 5. b5 Nce7 6. Bb2 Qd6 7. cxd5 Nxd5 8. e4 Nb6 9. Qc2 Be6 10. f4 Nc4 11. Ne2 Nxb2 12. Qxb2 exf4 13. Nxf4 a6 14. e5 Qb6 15. Nxe6 fxe6 16. Rf1 O-O-O 17. Nc3 g6 18. O-O-O Nh6 19. bxa6 Qxa6 20. Qb5 Qxb5 21. Nxb5 c6 22. Nc3 Ng4 23. Bh3 h5 24. Bxg4 hxg4 25. Rh1 Ba3+ 26. Kc2 Bc5 27. Ne2 Rh5 28. d4 Bb6 29. Nf4 Rxd4 30. Nxh5 gxh5 31. Rhf1 Rxd1 32. Rxd1 Bc7 33. Kd3 Bxe5 34. Re1 Bg7 35. Rxe6 Kd7 36. Rg6 Bb2 37. Rh6 b6 38. Rxh5 Bf6 39. Rf5 Ke6 40. Rf4 Be5 41. Rxg4 Kd5 42. h4 Ke6 43. Ke4 c5 44. h5 c4 45. h6 Ke7 46. Kxe5 c3 47. Rg7+ Kf8 48. Kf6 c2 49. h7 c1=B 50. h8=Q# |