| 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 Re8 11. Nc3 e5 12. dxe5 fxe5 13. Bd2 Nf6 14. e4 Kc8 15. f3 Rd8 16. Be3 Bb4 17. Rc1 b6 18. a3 Bxc3+ 19. Rxc3 Rd7 20. Ke2 Rhd8 21. c5 b5 22. c6 Rd6 23. Rhc1 a6 24. Rc5 Re8 25. a4 bxa4 26. Ra5 Ree6 27. Rxa6 Kd8 28. Ra8+ Ke7 29. Bc5 Kf7 30. Bxd6 Rxd6 31. Rxa4 g6 32. Ke3 Ne8 33. Ra7 Kf6 34. f4 h6 35. Rc5 Re6 36. b4 exf4+ 37. gxf4 Re7 38. Rd5 Nd6 39. e5+ Kf7 40. Rxd6 cxd6 41. c7 dxe5 42. b5 exf4+ 43. Kxf4 Rxc7 44. Rxc7+ Ke6 45. b6 Kd6 46. Rh7 Kd5 47. b7 h5 48. b8=Q Kd4 49. Qd8+ Kc5 50. Rc7+ Kb5 51. Qb8+ Ka4 52. Ra7# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 99 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. O-O-O Kc8 15. f3 Rd8 16. Nd5 Bxd2+ 17. Rxd2 c6 18. Nxf6 Rxd2 19. Kxd2 gxf6 20. Rd1 Kc7 21. Kc3 Rd8 22. Rxd8 Kxd8 23. e4 b6 24. b4 Kd7 25. c5 bxc5 26. bxc5 Ke6 27. Kd3 a5 28. a4 h5 29. Ke3 f5 30. Kd3 Kf6 31. exf5 Kxf5 32. h4 e4+ 33. fxe4+ Kf6 34. Kd2 Ke6 35. Ke2 Kf6 36. Kf3 Ke6 37. g4 Ke5 38. gxh5 Kf6 39. Kf4 Ke6 40. e5 Kf7 41. Kf5 Ke8 42. Kf6 Kd7 43. e6+ Ke8 44. e7 Kd7 45. h6 Kc8 46. e8=Q+ Kb7 47. h7 Ka7 48. h8=Q Kb7 49. Qhf8 Ka6 50. Qa8# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 87 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. Bxf6 gxf6 15. Nd5 f5 16. O-O-O Kc6 17. Ne3 f4 18. Nd5 Bd6 19. a3 Rad8 20. Kc2 Rhe8 21. b4 a5 22. Kb3 axb4 23. axb4 b5 24. Rd2 bxc4+ 25. Kxc4 Kb7 26. Rhd1 Rf8 27. gxf4 c6 28. Nc3 Rfe8 29. Rxd6 Rxd6 30. Rxd6 exf4 31. Rxh6 Rg8 32. h4 f3 33. exf3 Rf8 34. Ne4 Rxf3 35. h5 Rf4 36. Kd4 Kc7 37. Rg6 Kd7 38. h6 Ke7 39. Rxc6 Kd8 40. Ra6 Ke7 41. h7 Rf5 42. h8=Q Kf7 43. Qh7+ Ke8 44. Ra8# |
| 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 Re8 11. Nc3 Kc8 12. O-O e5 13. d5 Bb4 14. Bd2 f5 15. a3 Bxc3 16. Bxc3 Nf6 17. f3 Kd7 18. Rae1 f4 19. e4 g5 20. Kf2 Rhg8 21. b3 Rg6 22. c5 fxg3+ 23. Kxg3 h5 24. a4 g4 25. f4 exf4+ 26. Rxf4 h4+ 27. Kg2 Ng8 28. e5 Ne7 29. e6+ Kd8 30. Rd1 Rgg8 31. d6 cxd6 32. cxd6 Nd5 33. e7+ Nxe7 34. Bf6 b5 35. dxe7+ Kc7 36. axb5 g3 37. Rxh4 gxh2+ 38. Kxh2 Kb6 39. Rd7 Kxb5 40. Rxa7 Rc8 41. Rh5+ Kc6 42. Bd4 Kd6 43. Rh6+ Kd5 44. Rd7+ Ke4 45. Kh3 Kf3 46. Rf6+ Ke4 47. Re6+ Kf5 48. Rdd6 Kf4 49. Re1 Rgf8 50. Rf1+ Ke4 51. Rxf8 Rc7 52. e8=Q+ Kd3 53. Qg6+ Ke2 54. Qe4+ Kd1 55. Bb2# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j in 105 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. Rhe1 Rd8 15. f4 Nf5 16. Bf2 Bb4 17. d5 exd5 18. cxd5 Nd6 19. e4 Rhe8 20. e5 fxe5 21. fxe5 Nc4 22. e6 a5 23. Re4 Nd6 24. Rh4 h6 25. Rg4 Re7 26. a3 h5 27. Rh4 Bxc3 28. bxc3 Rf8 29. Bc5 g6 30. Rf4 Rd8 31. Rf6 Rg7 32. Bxd6 Rxd6 33. c4 b6 34. Rf8+ Rd8 35. Rdf1 Re7 36. R1f7 a4 37. Kd2 g5 38. Rf5 h4 39. Rxd8+ Kxd8 40. Rxg5 hxg3 41. Rg8+ Re8 42. Rxe8+ Kxe8 43. hxg3 Ke7 44. g4 Kd6 45. g5 b5 46. g6 bxc4 47. g7 c6 48. g8=Q Kc5 49. e7 Kd4 50. dxc6 Ke4 51. e8=Q+ Kf4 52. Qe3+ Kf5 53. Qd5+ |
| 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 e5 11. dxe5 fxe5 12. Nc3 Bb4 13. Bd2 Nf6 14. Rd1 Kc8 15. a3 Be7 16. O-O Rd8 17. Be3 Rxd1 18. Rxd1 b6 19. Nd5 Nxd5 20. cxd5 Kb7 21. Kg2 Rd8 22. Bc1 c6 23. e4 Kc7 24. Be3 cxd5 25. exd5 Kd6 26. f3 Rc8 27. Rd2 Rc4 28. h4 Ra4 29. Rd3 Rc4 30. Kh3 Kd7 31. Rd2 Ra4 32. Rd1 Bd6 33. Kg2 h6 34. Kf2 Rc4 35. Ke2 e4 36. g4 Rc2+ 37. Rd2 Rc4 38. Kf2 exf3 39. Kxf3 h5 40. Rd4 Rc2 41. Ra4 Bb8 42. gxh5 Rxb2 43. Rg4 Be5 44. Ke4 Bf6 45. Rg6 b5 46. h6 gxh6 47. Rxf6 a5 48. Rxh6 b4 49. Rh7+ Kc8 50. d6 Re2 51. axb4 axb4 52. Kf4 Rxe3 53. Kxe3 b3 54. Rc7+ Kd8 55. h5 b2 56. Rb7 b1=R 57. Rxb1 Kc8 58. Rd1 Kd8 59. d7 Ke7 60. d8=Q+ Ke6 61. Rd6+ Kf5 62. Qh4 Ke5 63. Qf4# |
| 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 e6 11. Nc3 Ne7 12. O-O Nc6 13. Rd1 Rd8 14. d5 exd5 15. Nxd5 Kc8 16. Bf4 Ne5 17. b3 c6 18. Nc3 Bc5 19. Ne4 Bd4 20. Rac1 g5 21. Bd2 Nf7 22. e3 Be5 23. Bb4 f5 24. Nc5 Bd6 25. h3 a5 26. Bxa5 Bxc5 27. Bxd8 Rxd8 28. Rxd8+ Kxd8 29. Rd1+ Ke7 30. Kf1 Ke6 31. Ke2 Nd6 32. f3 b5 33. cxb5 cxb5 34. Rc1 Kd5 35. g4 Ba3 36. Rc7 Ke5 37. Rxh7 Bb2 38. Rh5 Kf6 39. Rh6+ Ke7 40. f4 gxf4 41. exf4 Bd4 42. Kf3 b4 43. Rh7+ Ke6 44. g5 Ne4 45. Rb7 Nd2+ 46. Kg2 Bh8 47. Rxb4 Ne4 48. g6 Bg7 49. Rb6+ Nd6 50. Kg3 Bd4 51. Ra6 Bf6 52. h4 Ke7 53. Ra7+ Kf8 54. h5 Bd4 55. Rd7 Ne4+ 56. Kf3 Bg7 57. Rf7+ Kg8 58. Rxf5 Nd6 59. Rd5 Ne8 60. a4 Kf8 61. Rd7 Nf6 62. Rf7+ Kg8 63. h6 Bxh6 64. Rxf6 Bg7 65. Rf7 Bc3 66. f5 Be1 67. Ke4 Bd2 68. f6 Be1 69. Rc7 Bd2 70. Rc8# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 101 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. Be3 Kc8 15. a3 Be7 16. Rd1 b6 17. f3 c6 18. O-O Kb7 19. Bf2 Rhf8 20. e4 Rad8 21. Be3 a6 22. Kg2 a5 23. Na4 Nd7 24. Rd3 g5 25. Rfd1 Kc7 26. h3 h5 27. b4 g4 28. fxg4 hxg4 29. hxg4 axb4 30. axb4 Rh8 31. g5 Bxb4 32. Nxb6 Nc5 33. Rxd8 Rxd8 34. Rxd8 Kxd8 35. g6 Ne6 36. Kf3 Ke7 37. Kg4 Bc3 38. Bg5+ Nxg5 39. Kxg5 Bd2+ 40. Kf5 Kf8 41. Nd7+ Kg8 42. Nxe5 Be1 43. g4 c5 44. Nd7 Bd2 45. Nxc5 Kf8 46. Ne6+ Ke8 47. Kf6 Be3 48. g7 Bd2 49. g8=Q+ Kd7 50. Qd8+ Kc6 51. Qc7# |
| 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 e6 11. Nc3 Ne7 12. O-O Nc6 13. Rd1 Rd8 14. d5 exd5 15. Nxd5 Kc8 16. Bf4 Ne5 17. b3 c6 18. Nc3 Bc5 19. Rab1 Ng6 20. Bd2 Rhe8 21. b4 Bd6 22. f4 Bc7 23. Be1 a5 24. Rxd8+ Rxd8 25. b5 cxb5 26. Nxb5 Bb6+ 27. Kg2 Ne7 28. e4 Nc6 29. Rb2 Bd4 30. Rd2 Bc5 31. Rd5 b6 32. Bf2 Bxf2 33. Kxf2 Nb4 34. Rh5 Rd2+ 35. Ke3 Rxa2 36. Rxh7 Nc2+ 37. Kd3 Nb4+ 38. Kc3 g6 39. Rh6 Rc2+ 40. Kb3 Re2 41. Rxg6 Nd3 42. Rxf6 Nc5+ 43. Kc3 Nxe4+ 44. Kd3 Nxf6 45. Kxe2 Kd7 46. f5 Ng4 47. h3 Ne5 48. g4 Nxc4 49. g5 Ke7 50. Kd3 Ne5+ 51. Ke4 Nc4 52. f6+ Ke6 53. Nd4+ Kf7 54. Kd5 Ne3+ 55. Ke5 Nc4+ 56. Ke4 a4 57. Nb5 a3 58. Nxa3 Nxa3 59. Kf5 Nc4 60. g6+ Kf8 61. Ke6 Nd6 62. Kxd6 Kg8 63. Ke7 b5 64. h4 Kh8 65. h5 b4 66. f7 b3 67. f8=Q# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j in 111 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. Bd2 Kc8 14. f3 Bc5 15. Na4 Be7 16. Bc3 Nd7 17. b3 a6 18. Rd1 Rf8 19. Rd5 Ra7 20. Bxe5 c6 21. Bd4 cxd5 22. Bxa7 dxc4 23. bxc4 Kc7 24. Nc3 Bc5 25. Bxc5 Nxc5 26. Kf2 Kd6 27. e4 Nd3+ 28. Ke2 Ne5 29. Rd1+ Kc6 30. f4 Nxc4 31. e5 b5 32. Nd5 Re8 33. Nb4+ Kb6 34. Rd7 a5 35. Nd3 Rg8 36. e6 Kc6 37. Kf3 Re8 38. f5 g6 39. g4 h5 40. h3 gxf5 41. gxf5 b4 42. Kf4 Rf8 43. Ne5+ Nxe5 44. Kxe5 Rb8 45. f6 Rb5+ 46. Kd4 Rf5 47. f7 Rf2 48. Rd8 Rd2+ 49. Ke3 Rxd8 50. e7 Rc8 51. e8=Q+ Kc7 52. Qxc8+ Kxc8 53. f8=Q+ Kb7 54. Qc5 Ka6 55. Qc6+ Ka7 56. Qc5+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 119 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. O-O Nc6 13. Rd1 Rd8 14. d5 exd5 15. Nxd5 Kc8 16. Bf4 Ne5 17. b3 c6 18. Nc3 Bc5 19. Rab1 Ng6 20. Bd2 Bb4 21. Ne4 Bxd2 22. Nxd2 Rhe8 23. Kf1 Kc7 24. Nf3 Nf8 25. Nd4 Ne6 26. Nxe6+ Rxe6 27. Rxd8 Kxd8 28. Rd1+ Ke7 29. e3 Rd6 30. Rxd6 Kxd6 31. Ke2 Kc5 32. a3 b5 33. Kd3 b4 34. a4 f5 35. h3 a6 36. f3 g6 37. f4 Kd6 38. e4 fxe4+ 39. Kxe4 c5 40. g4 Ke6 41. h4 Kd6 42. f5 gxf5+ 43. Kxf5 Ke7 44. Ke5 Kf7 45. Kd6 Ke8 46. Kxc5 Kd8 47. Kb6 Ke7 48. c5 Kd7 49. Kb7 Ke7 50. c6 Kd6 51. c7 Ke7 52. c8=Q Kd6 53. Kxa6 Ke5 54. Qf5+ Kd4 55. Qxh7 Kd5 56. Qe7 Kc6 57. Qe5 Kd7 58. Kb6 Kd8 59. Kc6 Kc8 60. Qe8# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 129 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. Rd3 c6 17. Rhd1 Bb4 18. Kc2 f5 19. f3 Rf8 20. Rd7 b6 21. a3 Bc5 22. Rg7 Bd4 23. Rg6 Kc7 24. Rd3 h5 25. Rg7+ Kc8 26. Rh7 h4 27. Rxh4 a6 28. e4 fxe4 29. Nxe4 Ra7 30. Rh6 Kb7 31. h4 Rd8 32. h5 Rd7 33. Re6 Ra8 34. Rxe5 Kc7 35. Re6 b5 36. c5 Rad8 37. h6 a5 38. Rd6 Be5 39. Rxd7+ Rxd7 40. Rxd7+ Kxd7 41. f4 Bh8 42. h7 Ke6 43. b3 Kf7 44. Ng5+ Kg6 45. Kd3 Bf6 46. Ke4 Kg7 47. Kf5 Bxg5 48. fxg5 Kxh7 49. Kf6 a4 50. g6+ Kg8 51. bxa4 Kf8 52. g7+ Ke8 53. g8=Q+ Kd7 54. Qh7+ Kc8 55. axb5 cxb5 56. Qd3 b4 57. axb4 Kc7 58. Ke6 Kb7 59. Qd7+ Ka6 60. c6 Kb5 61. Qb7+ Kc4 62. c7 Kd3 63. c8=Q Kd2 64. Qe4 Kd1 65. Qcc2# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 105 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 Bb4 12. Bd2 Ne7 13. a3 Bxc3 14. Bxc3 Rhd8 15. e4 a5 16. Ke2 Nc6 17. f4 a4 18. Ke3 Na5 19. Bxa5 Rxa5 20. Rhd1 Ke7 21. d5 b6 22. dxe6 Rxd1 23. Rxd1 Kxe6 24. Rd5 Ra8 25. c5 bxc5 26. Rxc5 Rb8 27. Rxc7 Rb3+ 28. Kd4 Rxb2 29. Rxg7 Rd2+ 30. Ke3 Rxh2 31. Ra7 Rc2 32. Ra6+ Kf7 33. Rxa4 Rc3+ 34. Kf2 h5 35. Ra7+ Ke6 36. Ra6+ Kf7 37. f5 h4 38. gxh4 Rh3 39. a4 Rxh4 40. Ke3 Rh3+ 41. Kd4 Ra3 42. a5 Ke7 43. Re6+ Kf7 44. a6 Ra2 45. Kc5 Ra3 46. Rb6 Rc3+ 47. Kd4 Rc2 48. a7 Rd2+ 49. Kc5 Ra2 50. Rb7+ Kf8 51. Rb8+ Ke7 52. a8=Q Re2 53. Qb7# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 105 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. O-O Nc6 13. Rd1 Rd8 14. d5 exd5 15. Nxd5 Kc8 16. Bf4 Ne5 17. b3 c6 18. Nc3 Bc5 19. Ne4 Bd4 20. Rac1 g5 21. Bd2 Ng4 22. Bb4 Bb2 23. Rb1 Rxd1+ 24. Rxd1 Rd8 25. Rxd8+ Kxd8 26. h3 Nh6 27. Kg2 Nf5 28. Nc5 Nd4 29. Nxb7+ Kc7 30. Nc5 Nxe2 31. Ne6+ Kb7 32. Kf3 Nd4+ 33. Nxd4 Bxd4 34. Ke4 Bxf2 35. g4 Kc7 36. Bc3 Bg3 37. Bxf6 Bh4 38. Kf5 Be1 39. Bxg5 Bc3 40. Be3 a6 41. Ke6 Kc8 42. Kd6 Kb7 43. h4 Be1 44. h5 Bb4+ 45. Ke6 c5 46. g5 Bc3 47. g6 hxg6 48. hxg6 Kc6 49. Bg5 Ba5 50. g7 Bb6 51. g8=Q Kc7 52. Qa8 a5 53. Bf4# |
| 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 e5 11. dxe5 fxe5 12. Nc3 Bc5 13. Bg5 h6 14. Rd1+ Kc6 15. Bd2 Nf6 16. Na4 Bd6 17. b4 a6 18. c5 Be7 19. a3 Rad8 20. f3 Rd4 21. Bc3 Rxd1+ 22. Kxd1 a5 23. Kc2 Ra8 24. Kb3 e4 25. Be5 exf3 26. exf3 axb4 27. axb4 Rd8 28. Nc3 Rd3 29. Rd1 Rxd1 30. Nxd1 b5 31. Ne3 g6 32. Kc3 Nd7 33. Bg7 Bf6+ 34. Bxf6 Nxf6 35. Kd4 Kd7 36. Ke5 Nh7 37. f4 h5 38. f5 gxf5 39. Kxf5 Nf8 40. Nd5 Ne6 41. Ke5 Nd8 42. Ke4 Kc6 43. Nf4 Kb7 44. Kd3 Nc6 45. Kc3 Ne7 46. Nxh5 Nd5+ 47. Kb3 Ne3 48. Nf4 Nf1 49. g4 Nd2+ 50. Kc2 Nf3 51. h3 Kc6 52. Kd3 Ng5 53. h4 Nf3 54. Ke3 Ne5 55. g5 Nc4+ 56. Ke4 Kd7 57. g6 Ke8 58. Ne6 Ke7 59. Nxc7 Kf6 60. h5 Ne5 61. Ne8+ Ke7 62. Kxe5 Kf8 63. Kd6 Kxe8 64. c6 Kf8 65. h6 Kg8 66. c7 Kf8 67. c8=Q# |
| 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 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 Rc5 20. b3 Rc6 21. f3 Re6 22. a4 Bd6 23. Kg2 f5 24. exf5 Re2+ 25. Kh3 Rf8 26. Rd5 b6 27. Rb1 Re1 28. a5 Rfe8 29. axb6 axb6 30. Ra1 Rh1+ 31. Kg4 Rg1 32. Ra8+ Kd7 33. Rxd6+ cxd6 34. Ra7+ Kc6 35. Bb2 Re2 36. Bxg7 Reg2 37. Bd4 Rd1 38. Be3 h5+ 39. Kf4 d5 40. f6 dxc4 41. f7 Rd8 42. bxc4 Rc2 43. Kg5 Rxc4 44. Kxh5 b5 45. Bf4 Rh8+ 46. Kg5 Kd5 47. Kf5 Rc5 48. Be5 Rf8 49. Bg7 Rxf7+ 50. Rxf7 b4 51. h5 b3 52. h6 Rb5 53. h7 Rb8 54. h8=Q Rb4 55. Qa8+ Kc4 56. Qe4+ Kb5 57. Rb7+ Ka5 58. Qxb4+ Ka6 59. Qb5# |
| 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 Bc5 13. O-O Nf6 14. Rd1+ Kc6 15. Bd2 Raf8 16. e3 b6 17. f3 Rd8 18. Kg2 Rd3 19. e4 h6 20. Nd5 Kb7 21. Bc3 Rxd1 22. Rxd1 c6 23. Nxf6 gxf6 24. Rd7+ Ka6 25. b4 Be3 26. Rc7 Bd4 27. Bd2 h5 28. a4 b5 29. Rxc6+ Kb7 30. axb5 Rc8 31. Rxc8 Kxc8 32. f4 exf4 33. gxf4 Kb7 34. Kg3 a6 35. bxa6+ Kxa6 36. Kh4 Kb7 37. Kxh5 Kc6 38. Kg6 Kd7 39. h4 f5 40. Kxf5 Bg7 41. h5 Bh6 42. Kg6 Bxf4 43. Bxf4 Ke6 44. h6 Ke7 45. h7 Ke8 46. h8=Q+ Kd7 47. Kf6 Kc6 48. Qc8+ Kb6 49. Be3# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 129 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. O-O Nc6 13. Rd1 Rd8 14. d5 exd5 15. Nxd5 Kc8 16. Bf4 Ne5 17. b3 c6 18. Nc3 Bc5 19. Ne4 Bd4 20. Rac1 g5 21. Bd2 Nf7 22. e3 Be5 23. Bb4 f5 24. Nc5 Bd6 25. h3 a5 26. Bxa5 Bxc5 27. Bxd8 Rxd8 28. Kg2 Ne5 29. Rxd8+ Kxd8 30. f4 Bxe3 31. Rd1+ Nd7 32. fxg5 Bxg5 33. Rf1 Ke7 34. Rxf5 Bd2 35. Kf3 Ke6 36. g4 b6 37. Ke4 Bb4 38. Kd4 Bc5+ 39. Kc3 Bf8 40. b4 Bg7+ 41. Kb3 Bd4 42. a4 Be5 43. a5 bxa5 44. bxa5 Kd6 45. Rh5 Nc5+ 46. Kc2 Bf6 47. Rh6 Ke5 48. Rxh7 Bg5 49. Ra7 Ne4 50. a6 Be3 51. Re7+ Kf4 52. g5 Kxg5 53. Rxe4 Ba7 54. Re7 Bd4 55. a7 Kf6 56. a8=Q Kxe7 57. Qxc6 Be5 58. c5 Kd8 59. Qd5+ Ke7 60. Qxe5+ Kf8 61. c6 Kf7 62. Qd5+ Ke7 63. c7 Ke8 64. c8=Q+ Ke7 65. Qcd8# |
| 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 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 b6 21. f3 Re8 22. Be3 f5 23. Rd5 g6 24. Bg5 fxe4 25. g4 Rxg5 26. hxg5 e3 27. Re1 Bf4 28. c5 c6 29. Rd3 Bxg5 30. cxb6 axb6 31. Kf1 Rd8 32. Red1 Rxd3 33. Rxd3 Kc7 34. Ra3 Kd6 35. Ra7 Bf6 36. Rxh7 Bxb2 37. Ke2 Bd4 38. Rh6 b5 39. Rxg6+ Kd5 40. g5 c5 41. Rb6 Ke5 42. Rxb5 Kf5 43. a4 Kxg5 44. a5 Be5 45. a6 Kf4 46. a7 Bd4 47. a8=Q Bg7 48. Rxc5 Kg3 49. Qb8+ Kg2 50. Rg5+ Kh1 51. Qg3 Bh6 52. Qh4# |
| 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 e5 11. dxe5 fxe5 12. Nc3 Bc5 13. O-O Nf6 14. Rd1+ Ke6 15. Bg5 h6 16. Bxf6 gxf6 17. Rd5 Bb4 18. Rad1 Bxc3 19. bxc3 Rhg8 20. Rd7 Rac8 21. e4 Rge8 22. f4 f5 23. exf5+ Kxf5 24. R1d5 Ke4 25. Rxe5+ Rxe5 26. fxe5 Kxe5 27. Kf2 Ke4 28. Ke2 Kf5 29. Ke3 a6 30. h3 Kg5 31. c5 Kf6 32. Kd4 a5 33. Kd5 Kf5 34. g4+ Kf4 35. Kc4 Kg5 36. a4 Kh4 37. Rh7 Kg5 38. Kb5 Kg6 39. Rd7 h5 40. gxh5+ Kxh5 41. Kxa5 Kh4 42. c6 bxc6 43. Kb4 Kxh3 44. Rd4 Ra8 45. Rc4 Ra6 46. a5 Kg3 47. Re4 Kf3 48. Re5 Kf4 49. Re2 Kf5 50. Re7 Kf6 51. Rxc7 Ke6 52. c4 Kd6 53. Rg7 Ra8 54. Rb7 Ra6 55. Rb6 Ra7 56. a6 Ra8 57. Ka5 Ra7 58. Rb7 Ra8 59. Kb6 Ke5 60. a7 Rh8 61. Rb8 Rh4 62. Kc5 Kf5 63. a8=Q Rh5 64. Qxc6 Kg5 65. Rg8+ Kf5 66. Qg6+ Kf4+ 67. Kd4 Rd5+ 68. cxd5 Kf3 69. Qc2 Kf4 70. Qe4# |