| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j in 83 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. f3 Rd8 17. Kc2 b6 18. b4 Be7 19. e4 Rd4 20. Nd5 Bd6 21. Ne3 a5 22. bxa5 Bxa3 23. axb6 cxb6 24. Ra1 Kb7 25. Bc3 Rd7 26. Bxe5 Ra6 27. Nd5 Rf7 28. Bxf6 gxf6 29. g4 Bc5 30. Rxa6 Kxa6 31. Rb1 Rf8 32. f4 Rf7 33. h4 h6 34. h5 Rf8 35. Kd3 Kb7 36. Nxb6 Bxb6 37. c5 Kc6 38. cxb6 Rf7 39. b7 Kd6 40. b8=Q+ Kd7 41. Qa7+ Kd6 42. Qb6+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 127 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. e4 Bc5 17. Rd2 Bb4 18. Kc2 b6 19. Rhd1 Rf8 20. a3 Bxc3 21. Kxc3 f5 22. exf5 Rxf5 23. c5 Kb7 24. Kc4 Raf8 25. Rf1 e4 26. Kd4 Rd8+ 27. Kxe4 Rxd2 28. Kxf5 bxc5 29. b3 Rb2 30. b4 cxb4 31. axb4 Rxb4 32. f3 Rb5+ 33. Kg6 Rb6+ 34. Kh5 Rf6 35. g4 Kc6 36. h4 Kd5 37. g5 hxg5 38. hxg5 Rf5 39. Kg4 Re5 40. g6 Ke6 41. Rc1 c5 42. f4 Rd5 43. Ra1 Rd7 44. f5+ Ke5 45. Kg5 Rd2 46. Re1+ Kd6 47. g7 Rg2+ 48. Kf6 a5 49. Re8 Rg3 50. Rd8+ Kc6 51. g8=Q Rxg8 52. Rxg8 Kd7 53. Ke5 Ke7 54. Rc8 Kd7 55. Rxc5 a4 56. f6 a3 57. Rd5+ Kc6 58. f7 a2 59. Rd1 a1=Q+ 60. Rxa1 Kc5 61. f8=Q+ Kc4 62. Ra3 Kb5 63. Kd5 Kb6 64. Qb8# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 85 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. f3 Rd8 17. Kc2 b6 18. e4 Rd7 19. b4 Bd4 20. Ne2 a5 21. bxa5 bxa5 22. Bf4 Ra6 23. Nxd4 exd4 24. Kd3 Re6 25. Rb1 Nh5 26. Bd2 a4 27. Rb5 Rxe4 28. fxe4 Nf6 29. Rf1 c6 30. Ra5 Ng4 31. Rf4 h5 32. Rxh5 Nh6 33. Ra5 Rb7 34. Rf8+ Kd7 35. Bxh6 g6 36. Rf7+ Kc8 37. Ra8+ Rb8 38. Rf8+ Kd7 39. Rfxb8 Kd6 40. c5+ Ke7 41. Bg5+ Ke6 42. Re8+ Kf7 43. Re7# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j in 131 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. Bg5 Be7 14. O-O-O+ Kc8 15. Be3 b6 16. Nd5 Nf6 17. Nxe7+ Rxe7 18. c5 Rf8 19. f3 e4 20. Bd4 exf3 21. exf3 Nd5 22. f4 Rd8 23. a3 Kb7 24. Rd2 h6 25. Rhd1 c6 26. b4 Rde8 27. Kb2 g6 28. cxb6 axb6 29. h4 Re4 30. Be5 g5 31. hxg5 hxg5 32. b5 gxf4 33. bxc6+ Kxc6 34. Rc2+ Kb7 35. Rxd5 R8xe5 36. Rxe5 Rxe5 37. gxf4 Rd5 38. Rf2 Kc6 39. f5 Kd7 40. f6 Ke8 41. Kc3 Kf7 42. Kc4 Re5 43. a4 Re6 44. Kd5 Re3 45. Kc6 Re4 46. Kb5 Re6 47. Rf4 Rd6 48. Rf1 Re6 49. Rf2 Re4 50. Rf5 Rd4 51. Rf3 Re4 52. Rc3 Kxf6 53. Rc6+ Ke7 54. Rxb6 Re5+ 55. Kc6 Re6+ 56. Kb7 Re5 57. Rb5 Re3 58. a5 Rd3 59. a6 Rd7+ 60. Kb6 Rd6+ 61. Ka5 Rg6 62. a7 Kd8 63. a8=Q+ Ke7 64. Qe4+ Kf6 65. Qe5+ Kf7 66. Qd5+ |
| 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. Bd2 Kc8 14. f3 Bc5 15. Na4 Be7 16. Bc3 Nd7 17. O-O-O a6 18. b4 b5 19. Nc5 Nxc5 20. bxc5 Bxc5 21. Rd5 Ba3+ 22. Kc2 bxc4 23. Rxe5 Rb8 24. Re4 Rd8 25. Bxg7 Rd7 26. Bc3 Re7 27. Rxe7 Bxe7 28. e4 Kd7 29. Rd1+ Ke6 30. Rd4 Rb5 31. Rxc4 Bd6 32. f4 Rh5 33. h4 Rb5 34. Kd3 c5 35. f5+ Kd7 36. e5 Bf8 37. Ke4 Ke8 38. g4 Rb1 39. g5 Rf1 40. e6 Rh1 41. Ke5 Rh2 42. f6 Rxa2 43. f7+ Kd8 44. Ke4 Ke7 45. Kd5 Rf2 46. Bf6+ Rxf6 47. gxf6+ Kxf6 48. Ra4 h6 49. Rxa6 h5 50. Ra8 Bd6 51. Kxd6 Kf5 52. f8=Q+ Kg4 53. Ra3 c4 54. Qf3+ Kxh4 55. Qf4# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j 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. Nc3 Kc8 12. Be3 e6 13. O-O-O Ne7 14. h4 Rd8 15. f4 Nf5 16. Bf2 Bb4 17. e4 Nd6 18. c5 Nf7 19. Be1 Nh6 20. a3 Bxc3 21. Bxc3 Kd7 22. Kc2 Ng4 23. Rhe1 Rhe8 24. b3 g6 25. a4 a6 26. Re2 Kc6 27. Kd3 e5 28. Kc4 exd4 29. Rxd4 h5 30. Rxd8 Rxd8 31. b4 b5+ 32. cxb6 cxb6 33. b5+ Kb7 34. bxa6+ Kxa6 35. e5 Rc8+ 36. Kb4 fxe5 37. fxe5 Kb7 38. e6 Kc6 39. e7 Kd7 40. Kb5 Re8 41. Bb4 Rb8 42. Rd2+ Ke8 43. Kc6 Ne5+ 44. Kc7 Nd7 45. Rxd7 b5 46. Rd8+ Rxd8 47. exd8=Q+ Kf7 48. Qe7+ Kg8 49. Qe6+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 137 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. a3 Be7 17. Nd5 Rhe8 18. Nxe7 Rxe7 19. Rhe1 e4 20. Bd4 Rae8 21. f4 c5 22. Bxf6 gxf6 23. Rd6 Rf8 24. Red1 Kc7 25. Kc2 Rg7 26. b4 cxb4 27. axb4 Rgf7 28. c5 bxc5 29. bxc5 Rb8 30. Ra6 Kb7 31. Rda1 Ka8 32. Kc3 Rb5 33. c6 Rd5 34. R1a2 e3 35. h3 Rc7 36. Kb4 Rd2 37. Kc5 h5 38. R6a3 Kb8 39. Rb3+ Kc8 40. Rxe3 Rd8 41. Rb2 a5 42. Reb3 Ra7 43. e4 a4 44. Rb8+ Kc7 45. R8b7+ Rxb7 46. Rxb7+ Kc8 47. Ra7 Rd3 48. Rxa4 Rxg3 49. h4 Rg2 50. Ra8+ Kc7 51. Ra7+ Kc8 52. Rf7 Re2 53. Kd6 Rd2+ 54. Ke6 Rc2 55. Kxf6 Rxc6+ 56. Kf5 Kd8 57. Rh7 Rd6 58. Rxh5 Rd7 59. Rh8+ Ke7 60. e5 Rd5 61. h5 Rd2 62. h6 Rg2 63. h7 Rh2 64. Rc8 Rh5+ 65. Kg6 Rxh7 66. Rc7+ Kd8 67. Rxh7 Ke8 68. Kf6 Kf8 69. Rh8# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate 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 e6 11. Nc3 Ne7 12. e4 Nc6 13. Be3 Rd8 14. d5 Ne5 15. O-O-O Rc8 16. b3 a6 17. dxe6+ Kxe6 18. f4 Ng4 19. Bd4 Ba3+ 20. Kc2 Kf7 21. h3 Nh6 22. Nb1 Bb4 23. a3 Be7 24. Rd3 Rcd8 25. c5 b6 26. cxb6 cxb6 27. Rhd1 Rd6 28. Kb2 Rc8 29. Nc3 Rdc6 30. R1d2 f5 31. e5 Rd8 32. Bf2 Rxd3 33. Rxd3 g5 34. Nd5 gxf4 35. Nxf4 Ke8 36. Bd4 Nf7 37. Nd5 h6 38. b4 Bd8 39. Rf3 Ng5 40. Rxf5 Nxh3 41. Be3 Ng5 42. g4 Ne4 43. Rf4 Ng5 44. Kb3 Rg6 45. a4 Ne6 46. Rc4 b5 47. Rc8 Kd7 48. Ra8 bxa4+ 49. Kxa4 a5 50. Nf6+ Bxf6 51. exf6 Rxf6 52. Kxa5 Rg6 53. b5 Rxg4 54. b6 Rg2 55. b7 Rg4 56. b8=Q Ke7 57. Qe5 Rg6 58. Ra7+ Ke8 59. Qb5+ Kf8 60. Qb8+ Nd8 61. Qxd8# |
| 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 Nf6 13. Bg5 h6 14. O-O-O+ Kc8 15. Bxf6 gxf6 16. Nd5 Bc5 17. Nxf6 Bxf2 18. Ng4 Bd4 19. e3 Rg8 20. exd4 Rxg4 21. dxe5 Rxc4+ 22. Kb1 b5 23. Rhe1 Rc6 24. e6 Rd6 25. Rxd6 cxd6 26. Rf1 Kc7 27. Rf6 d5 28. Kc2 Rh8 29. a3 Kd6 30. Kd3 Re8 31. Rxh6 Rxe6 32. Rxe6+ Kxe6 33. Kd4 Kd6 34. h4 Ke6 35. g4 Kf6 36. Kxd5 a5 37. b4 Kf7 38. bxa5 Kf6 39. a6 Kg6 40. a7 b4 41. axb4 Kf6 42. b5 Ke7 43. b6 Kf6 44. b7 Kg7 45. b8=Q Kh7 46. a8=Q Kh6 47. Qc7 Kg6 48. Qac6# |
| 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 Kc8 14. O-O-O Nf6 15. f3 e4 16. Bf4 Bc5 17. Rhe1 Bb4 18. Kc2 Rhf8 19. Be3 b6 20. a3 Bxc3 21. Kxc3 h6 22. b4 a6 23. Bd4 Rf7 24. Kb3 Rd7 25. Bc3 Rxd1 26. Rxd1 exf3 27. exf3 Re3 28. Rf1 Kd7 29. a4 Kc6 30. Rf2 g5 31. b5+ Kb7 32. Kc2 Nd7 33. Kd2 Re6 34. Re2 Rxe2+ 35. Kxe2 Nc5 36. Bg7 h5 37. g4 hxg4 38. fxg4 Nxa4 39. Bf6 a5 40. Bxg5 Nb2 41. Bf6 Nxc4 42. g5 Nd6 43. h4 c5 44. h5 Nf5 45. h6 a4 46. h7 Ng3+ 47. Kd3 a3 48. h8=Q Kc7 49. Qg8 Kb7 50. Be5 c4+ 51. Kxc4 Nf5 52. Qb8# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 115 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. O-O-O+ Kc6 16. Nd5 Bc5 17. b4 Bf8 18. Rd3 a5 19. b5+ Kc5 20. Nxc7 Rc8 21. Nd5 Bg7 22. Rhd1 e4 23. Rb3 Rcd8 24. Kc2 f5 25. b6 Kxc4 26. Ne3+ Kc5 27. Rxd8 Rxd8 28. Nxf5 Bf8 29. h4 a4 30. Re3 Re8 31. f3 Kd5 32. fxe4+ Rxe4 33. Kd3 Rxe3+ 34. Nxe3+ Kc6 35. Nc4 Bc5 36. g4 Be7 37. h5 Kc5 38. e4 Bh4 39. Ne5 Be7 40. Nf7 Bf8 41. g5 hxg5 42. Nxg5 Kxb6 43. Nf7 Kc6 44. h6 Kd7 45. h7 Bg7 46. h8=B Bxh8 47. Nxh8 Ke6 48. Kd4 b6 49. Ng6 Kd6 50. e5+ Ke6 51. a3 Kd7 52. Kd5 Kd8 53. e6 Ke8 54. Kd6 Kd8 55. e7+ Kc8 56. Kc6 Kb8 57. Kxb6 Kc8 58. e8=Q# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j in 91 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 Bb4 14. a3 Bxc3+ 15. bxc3 Na5 16. c5 b6 17. Ke2 bxc5 18. Rhd1 cxd4 19. Rxd4+ Kc8 20. Rad1 g5 21. f3 Nc6 22. Rd7 g4 23. fxg4 Rb8 24. Rf7 h5 25. gxh5 Rb2+ 26. Rd2 Rxd2+ 27. Kxd2 Rxh5 28. h4 f5 29. exf5 Nd8 30. Rg7 exf5 31. Bxa7 f4 32. Bf2 Rd5+ 33. Ke2 Ne6 34. Rh7 fxg3 35. Bxg3 Ra5 36. Re7 c6 37. Rxe6 c5 38. h5 Rxa3 39. h6 Ra2+ 40. Kf3 Kd7 41. Re8 Rd2 42. h7 Kxe8 43. h8=Q+ Kd7 44. Qh7+ Kd8 45. Qc7+ Ke8 46. Qe5+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 67 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 a5 16. d5 Be7 17. Ne4 Kc8 18. Bd2 b6 19. Kg2 Rd8 20. b3 c6 21. Be3 cxd5 22. cxd5 Rxd5 23. Bxb6 Rb5 24. Rac1+ Kb7 25. Be3 Rb4 26. Rfd1 Ka6 27. Nd6 Rb6 28. Bxb6 Rh7 29. Bf2 Bxd6 30. Rxd6+ Kb7 31. Rb6+ Ka8 32. Rc8+ Ka7 33. Rb4+ Ka6 34. Rc6# |
| 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. Be3 Nf6 13. f3 Bb4+ 14. Nd2 Rhd8 15. a3 Be7 16. O-O-O b6 17. Ne4+ Kc6 18. Ng5 Rxd1+ 19. Rxd1 g6 20. b4 Kb7 21. Kb2 a6 22. Ne6 a5 23. Kb3 e4 24. fxe4 axb4 25. axb4 Nxe4 26. Rd7 Bd6 27. Bf4 Rh8 28. Bxd6 Kc6 29. Rf7 Kxd6 30. Nxc7 Rc8 31. Nb5+ Ke6 32. Rxh7 g5 33. Nd4+ Ke5 34. Nf3+ Kf5 35. Rf7+ Kg4 36. Rb7 Rd8 37. Rxb6 Nd2+ 38. Nxd2 Rxd2 39. c5 Rxe2 40. c6 Re1 41. c7 Rc1 42. Rb7 Kf5 43. Kb2 Rc4 44. b5 Rc3 45. Kxc3 Ke4 46. c8=Q Ke5 47. Re7+ Kd6 48. Qe6+ Kc5 49. Qc6# |
| 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 Re8 11. Nc3 g5 12. f4 gxf4 13. Bxf4 e5 14. dxe5 fxe5 15. O-O-O+ Kc8 16. Bg5 Bh6 17. Bxh6 Nxh6 18. Rhf1 Ng4 19. Rf7 Ref8 20. Rdd7 Rxf7 21. Rxf7 Nxh2 22. Kc2 h5 23. Nb5 a6 24. Nxc7 Rg8 25. c5 Rxg3 26. Ne8 Kd8 27. Nd6 Rg6 28. Nxb7+ Ke8 29. Rh7 Ng4 30. Nd6+ Kd8 31. Rxh5 Kd7 32. b4 Ne3+ 33. Kd2 Nf1+ 34. Ke1 Ne3 35. Nf7 Re6 36. Nxe5+ Kc7 37. Rh7+ Kc8 38. Nd3 Re4 39. Kd2 Nf1+ 40. Kc3 Rxe2 41. a4 Ra2 42. Rh1 Ne3 43. Ne5 Nd5+ 44. Kc4 Ne3+ 45. Kb3 Rd2 46. c6 Nd5 47. Rh8+ Kc7 48. Rh7+ Kc8 49. b5 axb5 50. axb5 Rd4 51. Nc4 Rd3+ 52. Kb2 Rg3 53. Nd6+ Kb8 54. Rb7+ Ka8 55. c7 Rg8 56. b6 Nxb6 57. Rxb6 Rg2+ 58. Kb3 Rg3+ 59. Kc4 Rg7 60. Ra6# |
| 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. f3 Kc8 16. b4 Be7 17. Nd5 Bd6 18. Rd1 Nxd5 19. cxd5 Rf8 20. a4 Kd7 21. O-O a5 22. bxa5 Ba3 23. e4 g6 24. Kg2 Bc5 25. Rb1 Rab8 26. Rb5 Ba7 27. Rfb1 Kc8 28. Bc3 Re8 29. h4 Re7 30. R5b3 h6 31. Kh3 Re8 32. Kg4 Re7 33. R1b2 Re8 34. h5 g5 35. Rb5 Re7 36. R2b3 Re8 37. Kf5 Rf8+ 38. Kg6 Rxf3 39. Bxe5 Re3 40. Rxe3 Bxe3 41. Kxh6 Ra8 42. Kg7 c6 43. Rb3 Bc5 44. h6 cxd5 45. exd5 Ra7 46. h7 b5+ 47. Kg6 Rxh7 48. Kxh7 b4 49. a6 Bb6 50. Rxb4 Be3 51. Bb8 Bc5 52. a7 Bxa7 53. Bxa7 Kd7 54. Bc5 g4 55. a5 Kc7 56. a6 Kd7 57. a7 Kc7 58. a8=Q Kd7 59. Rb7# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 63 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. Be3 e6 14. O-O-O Kc8 15. a3 Ne7 16. Ne4 Bg7 17. Bf2 b6 18. Nd2 e5 19. e4 exf4 20. gxf4 f5 21. e5 Ng6 22. Be3 Nxf4 23. Bxf4 gxf4 24. Rhg1 Rh7 25. Rg6 c5 26. dxc5 bxc5 27. e6 Bh8 28. Nb3 f3 29. Rd5 Rf7 30. exf7 Kb7 31. Rd7+ Kc8 32. fxe8=Q# |
| 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 Nf6 13. Bd2 Kc8 14. Rd1 Bc5 15. O-O Rd8 16. Na4 Ne4 17. Nxc5 Nxd2 18. Rfe1 Nxc4 19. Rxd8+ Kxd8 20. Rd1+ Kc8 21. Ne6 b6 22. b3 Nd6 23. Nxg7 Kd7 24. Nh5 Ke6 25. f3 Rf8 26. Kf2 Rf7 27. f4 Ne4+ 28. Ke3 Nd6 29. Kf3 e4+ 30. Kf2 Nb5 31. g4 Nc3 32. f5+ Ke5 33. Rc1 Nxa2 34. Rc4 c5 35. Ke3 Kd6 36. Kxe4 Re7+ 37. Kf3 b5 38. Rc2 Nb4 39. Rd2+ Ke5 40. e4 a5 41. g5 a4 42. Nf6 h5 43. bxa4 Rf7 44. axb5 Rxf6 45. gxf6 Kxf6 46. Rd7 Ke5 47. b6 Nc2 48. b7 Kf6 49. Kf4 Na1 50. e5# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 79 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 h6 19. f3 b6 20. Nd5 Bf8 21. Kg2 c6 22. Nxf6 gxf6 23. g4 Bg7 24. b3 Kc7 25. Kg3 Rg8 26. b4 Bf8 27. Kh4 f5 28. gxf5 Rg2 29. Rd2 Rxh2+ 30. Kg3 Rh1 31. f6 Ra1 32. Rd3 Ra2 33. Kf2 h5 34. f7 Rc2 35. Bg5 e4 36. fxe4 Bxb4 37. axb4 Kb8 38. f8=R+ Kb7 39. Rf7+ Ka6 40. Ra3# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 135 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. e4 Kc7 21. Ke3 Rd8 22. f4 Kb6 23. b4 c5 24. a3 Rd4 25. Rc1 a6 26. g4 exf4+ 27. Kxf4 Rd2 28. h4 Rb2 29. bxc5+ Kxc5 30. g5 fxg5+ 31. hxg5 Kd4 32. Rd1+ Kxc4 33. Rd7 Rf2+ 34. Ke5 b5 35. Rxh7 Rg2 36. Kf6 Rf2+ 37. Ke6 Rg2 38. Rg7 a5 39. g6 Kd4 40. e5 Ke4 41. Rg8 b4 42. axb4 axb4 43. g7 b3 44. Rb8 Rxg7 45. Rxb3 Rh7 46. Rb4+ Ke3 47. Kd6 Ra7 48. e6 Ra6+ 49. Kd7 Ra7+ 50. Ke8 Rh7 51. e7 Rh5 52. Kd7 Rh8 53. e8=R+ Rxe8 54. Kxe8 Kf3 55. Ke7 Ke3 56. Ke6 Ke2 57. Rb3 Kd2 58. Kd5 Kc2 59. Rh3 Kd2 60. Ke4 Kc2 61. Kd4 Kb2 62. Rc3 Ka2 63. Kc4 Kb2 64. Kb4 Ka2 65. Rb3 Ka1 66. Kc3 Ka2 67. Kc2 Ka1 68. Ra3# |