| 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. 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. f4 Ke7 24. e4 Ke6 25. b4 f5 26. Kd3 b6 27. Ke3 h5 28. h3 a6 29. fxe5 Kxe5 30. exf5 Kxf5 31. Kd4 Ke6 32. c5 b5 33. Ke4 Kf6 34. a3 Ke6 35. h4 Kf6 36. Kf4 Ke7 37. Kg5 Ke6 38. Kxh5 Kf6 39. Kh6 a5 40. bxa5 Ke5 41. a6 Kd5 42. a7 Kxc5 43. a8=Q Kd6 44. g4 Ke7 45. Qxc6 Kd8 46. h5 b4 47. axb4 Ke7 48. Qe4+ Kd7 49. g5 Kc7 50. g6 Kb6 51. Qd5 Ka7 52. Qb5 Ka8 53. Qd7 Kb8 54. g7 Ka8 55. g8=Q# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j 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. Bxf6 gxf6 15. O-O-O+ Kc8 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 Kf6 34. h4 c6 35. g4 a5 36. g5+ Kg6 37. Ke5 Kf7 38. Kd6 Ke8 39. Kxc6 Ke7 40. Kxb6 Kd8 41. h5 Ke7 42. Kxa5 Ke6 43. b4 Kf5 44. g6 Kf4 45. g7 Kg4 46. h6 Kf4 47. h7 Kg5 48. h8=Q Kf6 49. g8=Q+ Kf5 50. Qd5+ Kg4 51. Qhd4+ |
| 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. 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. Rd5 Rxd5 23. cxd5 f5 24. exf5 Re5 25. g4 Rxd5 26. Be3 Kd7 27. Re1 c5 28. h5 Re5 29. f4 Re7 30. Kf3 h6 31. Bd2 Rf7 32. Re6 Be7 33. Bc3 c4 34. Rg6 Bf8 35. Bd4 Re7 36. g5 Ke8 37. f6 gxf6 38. Bxf6 Rh7 39. Kg4 hxg5 40. fxg5 b5 41. h6 Kf7 42. Kf5 Bb4 43. Bg7 Be7 44. Rf6+ Ke8 45. g6 Rxh6 46. Bxh6 Bxf6 47. Kxf6 Kd8 48. g7 Kc7 49. g8=Q Kb7 50. Qe6 a6 51. Be3 Kc7 52. Bf4+ Kb7 53. Qd7+ Ka8 54. Qc7 c3 55. Qb8# |
| 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 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. b3 g6 23. Re1 Bb4 24. Re2 Bc3 25. Rb1 h6 26. Bf4 f5 27. Rc1 Bb4 28. Rh1 fxe4 29. Rxe4 Rd8 30. g4 Ra5 31. a4 Bd2 32. Rd1 Bxf4 33. Rxd8+ Kxd8 34. Rxf4 Ke7 35. Re4+ Kd6 36. Kf2 Re5 37. Ke3 g5 38. hxg5 hxg5 39. f4 Rxe4+ 40. Kxe4 gxf4 41. Kxf4 Ke6 42. g5 a5 43. Kg4 Kf7 44. Kf5 c6 45. g6+ Kg7 46. Kg5 b5 47. cxb5 Kf8 48. b6 Ke7 49. b7 c5 50. b8=Q Ke6 51. g7 Kf7 52. g8=Q+ Ke7 53. Qge8# |
| 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. 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 a6 23. b3 g6 24. a3 Rd7 25. a4 Re6 26. Rd3 f5 27. exf5 gxf5 28. Rad1 Ree7 29. R1d2 Bb4 30. Rxd7 Rxd7 31. Rxd7 Kxd7 32. Kf2 Bd6 33. f4 c5 34. Kf3 Kc6 35. g4 fxg4+ 36. Kxg4 b6 37. Bd2 Kd7 38. a5 bxa5 39. Bxa5 Be7 40. Bc3 Ke6 41. f5+ Kf7 42. Be5 h6 43. Kh5 Bf6 44. Bf4 Bg7 45. Kg4 Bf8 46. Kf3 h5 47. Ke4 Be7 48. Bg5 Bf6 49. Bxf6 Kxf6 50. Kd5 Kxf5 51. Kxc5 Ke6 52. Kc6 Ke5 53. c5 Kf4 54. Kb6 Kg4 55. c6 Kxh4 56. c7 Kg3 57. c8=Q h4 58. Qc3+ Kg2 59. Qc4 h3 60. Qg4+ Kf1 61. Qc4+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j 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. Be3 Kc8 14. O-O-O b6 15. f3 Kb7 16. a3 Be7 17. Nd5 Rhe8 18. Nxe7 Rxe7 19. b4 e4 20. Rhe1 Rae8 21. Kd2 c6 22. h4 Rd7+ 23. Kc2 Rxd1 24. Kxd1 b5 25. cxb5 cxb5 26. Bc5 Kc6 27. Kd2 a6 28. f4 Ng4 29. Kc3 Rd8 30. Rc1 Rd7 31. Kb3 h6 32. a4 Kd5 33. Rd1+ Kc6 34. axb5+ axb5 35. Rxd7 Kxd7 36. Kc3 Ke6 37. Kd4 Nf6 38. Bf8 Kf7 39. Bd6 Ke6 40. Be5 Kf5 41. Bxf6 gxf6 42. Kc5 Ke6 43. Kxb5 Kd6 44. Kb6 Kd5 45. b5 Kd4 46. Kc6 Ke3 47. b6 Kxe2 48. b7 Kf2 49. b8=Q e3 50. Qa7 Kf3 51. Qa3 h5 52. Kd5 Kf2 53. Ke4 Kxg3 54. Qxe3+ Kh2 55. Kf5 Kg2 56. Kxf6 Kf1 57. Qf3+ Kg1 58. f5 Kh2 59. Qe2+ Kg3 60. Qxh5 Kg2 61. Qg4+ Kf2 62. h5 Ke3 63. h6 Kd2 64. Qe4 Kc3 65. Qe1+ |
| 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 Rhe8 23. Nd6+ Rxd6 24. Bxd6 Bxf2+ 25. Kg2 Bb6 26. Re1 Re6 27. c5 Ba5 28. Rh1 h5 29. h3 Rxe2+ 30. Kf1 Rc2 31. Rxc2 Ne3+ 32. Ke2 Nxc2 33. Rf1 Bd8 34. Kd3 Nb4+ 35. Kd4 Nd5 36. a3 Bc7 37. Bxc7 Kxc7 38. h4 gxh4 39. gxh4 Kd7 40. Rf5 b5 41. Rxh5 Ke6 42. Rxd5 a5 43. Rd6+ Kf7 44. Rxc6 f5 45. Ke5 f4 46. Kxf4 a4 47. bxa4 Ke8 48. axb5 Kd8 49. Ke5 Ke8 50. Rc7 Kd8 51. b6 Ke8 52. b7 Kd8 53. b8=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 e5 11. dxe5 fxe5 12. Nc3 Bb4 13. Bd2 Nf6 14. Rd1 Kc8 15. e4 Bxc3 16. Bxc3 Nxe4 17. Bxe5 Re8 18. f4 Nd6 19. Kf2 Nxc4 20. Bxg7 Nd6 21. Rhe1 Kd7 22. Re5 Re7 23. Rxe7+ Kxe7 24. b3 b6 25. Be5 Rd8 26. Re1 Ke6 27. g4 c5 28. Re2 Kf7 29. f5 Nb5 30. f6 Nd4 31. Re4 Nc6 32. Bc3 Rd1 33. Rc4 Nb4 34. Bxb4 cxb4 35. g5 Rd2+ 36. Kf3 Rxa2 37. Rc7+ Kg8 38. h4 Ra3 39. Rg7+ Kf8 40. Ke4 Rxb3 41. Rxh7 a5 42. g6 Ke8 43. f7+ Ke7 44. Rh8 Kf6 45. f8=Q+ Ke6 46. Qf5+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 123 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. O-O Rd8 16. a3 Be7 17. Be3 Ng4 18. Rxd8+ Kxd8 19. Rd1+ Ke8 20. Nb5 Kf7 21. Nxc7 Nxe3 22. fxe3 Rd8 23. Rf1+ Kg6 24. Nd5 Bd6 25. b4 e4 26. c5 Bb8 27. Ne7+ Kh6 28. Rf7 g6 29. Kf2 a6 30. h4 Kh5 31. Rxh7+ Kg4 32. Rg7 Bxg3+ 33. Kg2 Bxh4 34. Nxg6 Bf6 35. Rxb7 Kf5 36. Nf4 Rc8 37. Rh7 Bg5 38. Kf2 Rc6 39. Rf7+ Ke5 40. Rd7 Bh4+ 41. Kg2 Be1 42. Rd5+ Kf6 43. Rh5 Kf7 44. Re5 a5 45. Rxe4 axb4 46. axb4 Kf6 47. Nd5+ Kf5 48. Kf3 Re6 49. Rd4 Rh6 50. Ne7+ Ke6 51. Rd6+ Kxe7 52. Rxh6 Bxb4 53. c6 Ba5 54. Ke4 Bb6 55. Kd5 Bc7 56. Rh7+ Kd8 57. e4 Ba5 58. e5 Be1 59. c7+ Kc8 60. Kc6 Bb4 61. Rh8+ Bf8 62. Rxf8# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate in 69 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. Rb4 Rf6 28. Rf1 c5 29. Rxa4 Re6 30. Rb1 Rd5 31. cxd5 h6 32. dxe6 g5 33. Ra6 Nf6 34. Ba5 Nh7 35. Rc6# |
| 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 e5 11. dxe5 fxe5 12. Nc3 Nf6 13. f3 Kc8 14. Bd2 Bc5 15. Na4 Be7 16. e4 Rd8 17. Bc3 Nd7 18. Rd1 a6 19. b4 b5 20. Nc5 Bxc5 21. bxc5 Nxc5 22. Ke2 Rxd1 23. Rxd1 Nd7 24. c5 Nxc5 25. Bxe5 g6 26. Ke3 Kb7 27. Rc1 Ne6 28. f4 Re8 29. g4 c6 30. Bf6 Rf8 31. e5 Nc7 32. Ke4 Nd5 33. Bg5 Kc7 34. f5 gxf5+ 35. gxf5 Rg8 36. h4 h6 37. Bxh6 Rg4+ 38. Kf3 Rxh4 39. Bg5 Rh3+ 40. Kg4 Rh2 41. f6 Rf2 42. Rd1 Kd7 43. Bh4 Rf4+ 44. Kg5 Ke6 45. Rc1 Rf3 46. Rxc6+ Kxe5 47. Kg6 Ke4 48. f7 a5 49. Re6+ Kd3 50. Rf6 Rh3 51. Rd6 Re3 52. f8=Q Re5 53. Bg3 Ke4 54. Qa8 Rf5 55. Re6+ Kd4 56. Qa7+ Kc3 57. Kxf5 Kd3 58. Qc5 b4 59. Qxd5+ Kc2 60. Re2+ Kc3 61. Be5# |
| 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 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 h6 22. Bb4 Nf7 23. e3 Be5 24. Rxd8+ Nxd8 25. f4 gxf4 26. exf4 Bd4+ 27. Kf1 Ne6 28. Be7 Kd7 29. Bxf6 Bxf6 30. Nxf6+ Kd6 31. Rd1+ Ke7 32. Ne4 Rf8 33. Kf2 b6 34. Ke3 c5 35. Rd6 Nd4 36. Kd3 Nf5 37. Rd5 Nd4 38. h4 Re8 39. f5 Nf3 40. Ke3 Nd4 41. f6+ Ke6 42. g4 Rf8 43. g5 hxg5 44. Nxg5+ Kxf6 45. Nh7+ Ke7 46. Nxf8 Kxf8 47. Rd7 a6 48. Ra7 a5 49. Ke4 Ne2 50. h5 b5 51. h6 Kg8 52. h7+ Kh8 53. Kf5 a4 54. Kg5 Nd4 55. Kg6 Ne6 56. Ra8+ Nf8+ 57. Rxf8# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j 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 Re8 11. Nc3 Kc8 12. Be3 e6 13. O-O-O Ne7 14. Rd3 Nc6 15. Kb1 Be7 16. f4 Nb4 17. Rdd1 Nc6 18. d5 exd5 19. cxd5 Bb4 20. dxc6 Rxe3 21. Nd5 Re4 22. cxb7+ Kxb7 23. Nxb4 Rxb4 24. Rd7 Re8 25. Re1 g5 26. fxg5 fxg5 27. Rxh7 Rbe4 28. Rc1 R8e7 29. Rxe7 Rxe7 30. Rc2 c6 31. Kc1 Kc7 32. b4 Kd6 33. Kd1 Re4 34. a3 a5 35. bxa5 Ra4 36. Rc3 Kd5 37. Kd2 Rxa5 38. Kd3 Ra4 39. h3 Rd4+ 40. Kc2 c5 41. Rd3 Kc4 42. Rxd4+ Kxd4 43. a4 c4 44. h4 Ke5 45. h5 g4 46. Kc3 Kd6 47. h6 Kd5 48. h7 Ke5 49. h8=Q+ Kd5 50. Qd4+ Kc6 51. Qxc4+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j by checkmate 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. 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. Rf8+ Kb7 23. Rxa8 Kxa8 24. dxe5 Re4 25. Rd5 Rxc4+ 26. Kd2 Kb7 27. Ke3 Rc1 28. Rd2 Kc6 29. Ke4 Rf1 30. e6 Re1+ 31. Kf5 Rf1+ 32. Kg6 Re1 33. Kf7 Rf1+ 34. Ke8 Re1 35. e7 Re5 36. Kd8 Re4 37. e8=Q+ Rxe8+ 38. Kxe8 a5 39. Rd7 a4 40. Kd8 h5 41. Rxc7+ Kd6 42. Rh7 h4 43. Rxh4 b5 44. Rh5 Kc6 45. h4 b4 46. Ra5 Kd6 47. Rxa4 b3 48. axb3 Ke6 49. Rf4 Kd6 50. h5 Ke6 51. h6 Kd5 52. Kd7 Kc5 53. h7 Kd5 54. h8=Q Kc5 55. Qb8 Kd5 56. Qd6# |
| 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 e6 11. Nc3 Bb4 12. Bd2 Ne7 13. a3 Bxc3 14. Bxc3 Nc6 15. Rd1 Rad8 16. e4 Rhe8 17. Ke2 Ke7 18. Ke3 a6 19. f4 Kf7 20. b3 Ne7 21. h3 h6 22. Rhe1 g6 23. Kf3 g5 24. fxg5 hxg5 25. Rf1 Rh8 26. d5 exd5 27. cxd5 Rh6 28. Kg2 Rdh8 29. Rc1 Rxh3 30. Rxf6+ Ke8 31. Re6 Rh2+ 32. Kf3 g4+ 33. Ke3 R8h6 34. Bf6 Rxf6 35. Rxf6 Kd7 36. Rf4 Rb2 37. Rc3 Ra2 38. b4 c6 39. dxc6+ Nxc6 40. Rxg4 Ne7 41. Rh4 Rg2 42. Kf3 Rd2 43. Rh7 Ke6 44. Rh6+ Kd7 45. Rb6 Rd6 46. Rxb7+ Ke6 47. e5 Rd4 48. Rb6+ Kf5 49. e6 Nd5 50. Rc5 Rd3+ 51. Ke2 Ke4 52. Rc4+ Kf5 53. Kxd3 Kf6 54. Rxa6 Kg6 55. b5 Kf6 56. Rc5 Ne7 57. b6 Ng6 58. b7 Kg7 59. Rc7+ Ne7 60. Rxe7+ Kh6 61. b8=Q Kg5 62. Qg8+ Kf5 63. Ra5+ Kf6 64. Qg5# |
| 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 Rc8 16. b3 a5 17. dxe6+ Kxe6 18. f4 Ba3+ 19. Kb1 Ng4 20. Ba7 b6 21. Nb5 Bc5 22. Rd5 c6 23. f5+ Ke7 24. Rxc5 Nf2 25. Bxb6 Nxh1 26. Na7 Nf2 27. e5 Ng4 28. Nxc8+ Rxc8 29. exf6+ gxf6 30. Rxa5 Nxh2 31. Ra7+ Kd6 32. Rxh7 Nf1 33. Rg7 Ke5 34. g4 Ke4 35. Kb2 c5 36. Re7+ Kf4 37. Rf7 Rc6 38. Bd8 Kxg4 39. Rxf6 Rxf6 40. Bxf6 Kxf5 41. Be7 Nd2 42. a4 Ke6 43. a5 Kd7 44. Bxc5 Kc6 45. a6 Kc7 46. Ka3 Ne4 47. Be3 Kb8 48. Kb4 Nf6 49. Kb5 Ne4 50. Kc6 Ka8 51. b4 Kb8 52. b5 Ng3 53. a7+ Ka8 54. b6 Ne2 55. b7# |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j 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 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. Bf4 g5 20. hxg5 fxg5 21. Be5 Re8 22. Kg2 g4 23. Bd4 Bd6 24. e3 b6 25. Rh1 Rxh1 26. Rxh1 Kd7 27. Rxh7+ Re7 28. Rxe7+ Kxe7 29. e4 c5 30. Be3 Be5 31. b3 Bd4 32. Bf4 Ke6 33. Kf1 a6 34. a4 Kd7 35. Ke2 Kc6 36. f3 gxf3+ 37. Kxf3 a5 38. Kg4 Bf6 39. Kf5 Bg7 40. Ke6 Bd4 41. e5 Bc3 42. g4 Bd4 43. g5 b5 44. Kf7 bxc4 45. bxc4 Kc7 46. e6+ Kb6 47. e7 Bf6 48. gxf6 Kb7 49. e8=Q Kb6 50. Qd7 Ka6 51. Qd6+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j in 71 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 f5 17. e4 fxe4 18. Rhe1 Bd6 19. Rxe4 Rhf8 20. Rd2 Rf3 21. b4 Raf8 22. Ree2 b6 23. b5+ Kc5 24. Ne3 c6 25. Ng4 Rc3+ 26. Kb2 Rxc4 27. Nxe5 Rff4 28. gxf4 cxb5 29. Nxc4 bxc4 30. Re5+ Bxe5+ 31. fxe5 Kb4 32. Kc2 Kc5 33. e6 b5 34. e7 b4 35. e8=Q c3 36. Qe7+ |
| ECO A09 in 2007 play it! ziegler z defeats black's ziegler j 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. Bg5 h6 14. Bxf6 gxf6 15. O-O-O+ Kc8 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 Ra5 29. a3 c5 30. h4 Ke7 31. h5 Ra4 32. Rc6 Kd7 33. Rg6 Rd4+ 34. Ke3 Ke7 35. h6 Rd1 36. Kf4 Rh1 37. Kg5 Rh3 38. g4 Rh2 39. Rg7+ Ke6 40. h7 Ke5 41. Rxa7 b5 42. Kg6 b4 43. axb4 cxb4 44. Ra5+ Ke6 45. Rh5 Rg2 46. g5 Rxb2 47. h8=Q Re2 48. Qe8+ Kd6 49. Qxe2 Kc5 50. Qe3+ |
| 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 e6 11. O-O Ne7 12. e4 Rd8 13. Be3 Nc6 14. Nc3 Bb4 15. Ne2 Be7 16. Rad1 Nb4 17. d5 Nc2 18. Nd4 Nxd4 19. Rxd4 Bd6 20. Rd3 b6 21. Kg2 c6 22. f4 cxd5 23. cxd5 Rc8 24. Kf3 Rhd8 25. Rfd1 e5 26. fxe5 fxe5 27. Rc3 Rxc3 28. bxc3 Rf8+ 29. Ke2 h6 30. Rf1 Rxf1 31. Kxf1 Ke7 32. Ke2 Ba3 33. Kd3 Kd6 34. Kc4 g5 35. Kb5 Bb2 36. Bd2 Ba3 37. Ka6 Bc5 38. h4 g4 39. Bxh6 Bf2 40. h5 Bxg3 41. Bf8+ Kd7 42. h6 Bh4 43. h7 Bf6 44. Kxa7 Bg5 45. h8=Q g3 46. Qg7+ Ke8 47. Bb4 b5 48. Kb7 Bh4 49. Kc6 g2 50. Qd7# |