| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 67 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Bb3 e5 9. d4 exd4 10. Nxd4 Be4 11. Rg1 Bxb1 12. Rxb1 Bb4+ 13. Bd2 Bxd2+ 14. Qxd2 g5 15. Rc1 Qd6 16. Nxc6 Qxd2+ 17. Kxd2 Nxc6 18. Rxc6 Rd8+ 19. Ke2 Rd7 20. Be6 Rd8 21. Rc7 a5 22. f4 h6 23. h4 Ne7 24. hxg5 hxg5 25. fxg5 Rh2+ 26. Kf3 fxg5 27. Rxg5 Rd6 28. Re5 Rd4 29. exd4 b4 30. Bf5 Rxb2 31. Rexe7+ Kf8 32. Rh7 Rb3+ 33. axb3 a4 34. Rc8# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 35 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Bb3 e5 9. d4 exd4 10. Nxd4 Be4 11. Rg1 Nd7 12. Nc3 Nc5 13. Nxe4 Nxe4 14. Qg4 Qa5+ 15. Ke2 Rc8 16. Qxc8+ Qd8 17. Bf7+ Ke7 18. Qe6# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z in 131 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 Bd3 8. Be6 Be4 9. Nc3 Qd3 10. Qe2 Bf5 11. Bxf5 Qxf5 12. d4 Nd7 13. e4 Qa5 14. Bd2 O-O-O 15. Nd5 Qa4 16. b3 Qb5 17. Qxb5 cxb5 18. Bf4 e5 19. dxe5 g5 20. Be3 Nxe5 21. Nxe5 fxe5 22. Bxa7 Ne7 23. Bb6 Nxd5 24. Bxd8 Bb4+ 25. Kf1 Rxd8 26. exd5 Rxd5 27. Rg1 e4 28. Rg4 Bd6 29. h4 gxh4 30. Rxh4 Rd2 31. Rxe4 h6 32. Re2 Rd4 33. Kg2 h5 34. Kf3 Kd7 35. Rh1 h4 36. Re4 Rd3+ 37. Ke2 Rc3 38. Rhxh4 Rc2+ 39. Kf3 Rxa2 40. Rh7+ Kc6 41. Re2 Ra3 42. Rc2+ Kd5 43. Rd2+ Ke5 44. Rh5+ Ke6 45. Rh6+ Kf5 46. Rd5+ Be5 47. Rxb5 Ra2 48. Rh5+ Kg6 49. Rbxe5 Rc2 50. Reg5+ Kf6 51. Rf5+ Ke6 52. Rb5 Rc7 53. Rh6+ Kd7 54. Rd5+ Ke7 55. Rh7+ Ke6 56. Rxc7 Kxd5 57. Rxb7 Ke5 58. Rb5+ Kd4 59. Kf4 Kd3 60. Ke5 Kc3 61. f4 Kc2 62. f5 Kc3 63. f6 Kd3 64. f7 Ke3 65. f8=Q Kd2 66. Qf4+ |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 97 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 Bd3 8. Be6 Qa5 9. Qb3 Qb5 10. Bf7+ Kd8 11. Bxg8 Qxb3 12. Bxb3 Nd7 13. Nc3 e5 14. Rg1 Nc5 15. Bd1 Kd7 16. b4 Ne6 17. Rg4 h5 18. Rg3 Bxb4 19. Bb3 g5 20. a3 Ba5 21. h4 gxh4 22. Nxh4 Rhg8 23. Nf3 Rxg3 24. fxg3 Rg8 25. Ne2 Bxe2 26. Kxe2 Rxg3 27. Kf2 Rg4 28. d4 exd4 29. Bxe6+ Kxe6 30. exd4 Kd5 31. Rb1 b5 32. Rb3 h4 33. a4 Kc4 34. Re3 bxa4 35. Re6 Rf4 36. Bxf4 Kd5 37. Rxf6 Bc3 38. Ke3 h3 39. Kd3 Bxd4 40. Nxd4 Kc5 41. Rxc6+ Kb4 42. Bd2+ Ka3 43. Rh6 Ka2 44. Rxh3 a6 45. Bb4 Kb2 46. Rh6 a5 47. Bc3+ Ka3 48. Rh1 Ka2 49. Ra1# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 97 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Be2 Bd3 9. Nc3 e5 10. Rg1 Ne7 11. b4 a5 12. Bxd3 Qxd3 13. bxa5 Rxa5 14. Qe2 Qxe2+ 15. Kxe2 b4 16. Ne4 Nd5 17. Ke1 f5 18. Neg5 e4 19. Nd4 g6 20. f3 exf3 21. Nb3 Ra7 22. Bb2 Bg7 23. Bxg7 Rxg7 24. Nxf3 O-O 25. Nc5 Re8 26. Nd4 Kh8 27. a4 Re5 28. Rb1 Nxe3 29. dxe3 Rxc5 30. Ne6 Na6 31. Nxc5 h6 32. Nxa6 Ra7 33. Nxb4 Kg7 34. Nxc6 Rxa4 35. Nd4 Kf7 36. Rb7+ Kf6 37. Rb6+ Kf7 38. Rgxg6 Ra1+ 39. Kf2 Ra4 40. Rbf6+ Ke8 41. Rxf5 Ra2+ 42. Kg3 h5 43. Re6+ Kd8 44. Rd5+ Kc8 45. Rc6+ Kb7 46. Rxh5 Rc2 47. Rxc2 Kb6 48. Rb5+ Ka6 49. Ra2# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 91 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Be2 Bd3 9. Nc3 e5 10. Rg1 Ne7 11. b4 a5 12. Bxd3 Qxd3 13. bxa5 Rxa5 14. Qe2 Qxe2+ 15. Kxe2 b4 16. Ne4 Nd5 17. Ke1 f5 18. Neg5 e4 19. Nd4 g6 20. f3 exf3 21. Ndxf3 Bg7 22. d4 O-O 23. Ne6 Re8 24. Nxg7 Kxg7 25. Ne5 b3 26. a4 c5 27. Nc4 Nxe3 28. Nxa5 Re5 29. dxe5 Nc6 30. Bxe3 Nxa5 31. Rb1 c4 32. Kd2 Kf7 33. Kc3 Ke6 34. Bb6 Nc6 35. Kxc4 Nxe5+ 36. Kxb3 f4 37. a5 f3 38. a6 Nc6 39. Rbc1 Kd5 40. Rgd1+ Ke5 41. Rxc6 Kf5 42. a7 h6 43. a8=Q f2 44. Rd5+ Kf4 45. Rc4+ Kf3 46. Re5# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 57 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Be2 Bd3 9. Nc3 e5 10. Rg1 g6 11. Bxd3 Qxd3 12. Qb3 Ne7 13. Qe6 Nd7 14. a4 bxa4 15. Rg4 Rd8 16. Ne4 a3 17. Rxa3 Qxe4 18. Rxe4 Nc5 19. Qxf6 Nd5 20. Rxe5+ Ne7 21. Rxc5 Rg8 22. Ne5 Rg7 23. Rxa7 g5 24. Rxe7+ Rxe7 25. Qxc6+ Red7 26. Rd5 g4 27. Rxd7 Be7 28. Rxd8+ Kxd8 29. Qd7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 85 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 Bd3 8. Be6 Na6 9. Qb3 Nc5 10. Bf7+ Kd7 11. Qc3 e5 12. Rg1 Kc8 13. b4 Ne4 14. Qb3 Ne7 15. Bc4 Bxc4 16. Qxc4 Qd5 17. Qe2 Nf5 18. Ba3 Be7 19. d3 Nxf2 20. Kxf2 e4 21. dxe4 Bc5 22. exd5 Bxe3+ 23. Kf1 Kb8 24. dxc6 bxc6 25. Rxg7 Nxg7 26. Qxe3 Re8 27. Qf4+ Kb7 28. Qxf6 Ne6 29. Nbd2 Rad8 30. Qf7+ Nc7 31. Qxh7 Rh8 32. Qe7 Rhe8 33. Qg5 Rd5 34. Qf4 Rd3 35. Nc4 Nd5 36. Nd6+ Kb6 37. Qf7 Rb8 38. Nc4+ Ka6 39. Nfe5 Rc3 40. Nxc6 Rb3 41. Nxb8+ Kb5 42. Qxd5+ Ka4 43. Qd7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 35 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Bb3 Bd3 9. Be6 Qd6 10. Nd4 g6 11. h4 f5 12. Rg1 Nf6 13. f4 Ng4 14. a4 Bg7 15. Qb3 Bxb1 16. Bf7+ Kf8 17. Bxg6 Nxe3 18. Qf7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 33 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Bb3 Bd3 9. Be6 Qd6 10. Nd4 g6 11. Nc3 f5 12. Qf3 Nf6 13. Ncxb5 cxb5 14. Qxa8 Qg3 15. hxg3 Nd7 16. Qb7 Bf1 17. Qc8# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 51 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Bb3 e5 9. d4 exd4 10. Nxd4 Be4 11. Rg1 g6 12. Nc3 Qe7 13. f3 c5 14. Ndxb5 Qd6 15. Nxd6+ Kd8 16. Nf7+ Kc8 17. Nxe4 Nc6 18. Nxh8 c4 19. Bxc4 Kc7 20. Nf7 Bb4+ 21. Bd2 Ne5 22. Bxb4 Nxc4 23. Bd6+ Nxd6 24. Qxd6+ Kc8 25. Nc5 f5 26. Qd8# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 71 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 Bd3 8. Be6 Qd6 9. Nd4 Nd7 10. Nc3 Nc5 11. Bg4 g6 12. b4 Nd7 13. Be6 Rd8 14. a3 Nh6 15. Qa4 Qb8 16. Bb2 Nb6 17. Qb3 Qe5 18. Nce2 Qa5 19. bxa5 Be4 20. Rg1 Bd5 21. Bxd5 Nxd5 22. Qxb7 e5 23. Nxc6 Rd6 24. e4 Ne7 25. Qb8+ Nc8 26. Qxc8+ Kf7 27. d4 exd4 28. Nexd4 a6 29. Ne6 Rg8 30. Ncd8+ Ke7 31. Bxf6+ Kxf6 32. e5+ Kxe5 33. Qc5+ Rd5 34. Qc3+ Kf5 35. Rg5+ Ke4 36. f3# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 103 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Be2 Bd3 9. Qb3 Bxe2 10. Kxe2 g5 11. Nc3 g4 12. Nd4 h5 13. Qe6 Qd7 14. Ncxb5 cxb5 15. Qe4 Nc6 16. Qxc6 Qxc6 17. Nxc6 e5 18. a4 b4 19. d4 exd4 20. Nxd4 Rd8 21. h3 Nh6 22. hxg4 hxg4 23. Rh4 Rd5 24. Bd2 a5 25. Rc1 Rh7 26. Ne6 Rf7 27. e4 Rxd2+ 28. Kxd2 Ng8 29. Nxf8 Rxf8 30. Rxg4 Ne7 31. Rc7 Kd8 32. Rb7 Rf7 33. Rg8+ Nxg8 34. Rxf7 Ke8 35. Ra7 Ne7 36. Rxa5 Nc6 37. Rd5 Ke7 38. a5 Nb8 39. f4 Ke6 40. Rb5 Nc6 41. a6 Kd6 42. Rxb4 f5 43. Rb6 Ke6 44. Rxc6+ Kd7 45. Rc3 Ke8 46. exf5 Ke7 47. Ke3 Kf6 48. Ke4 Kg7 49. b4 Kh8 50. Rc7 Kg8 51. a7 Kf8 52. a8=Q# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 105 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Bb3 Bd3 9. Be6 Qd6 10. Nd4 g6 11. Nc3 c5 12. Qf3 cxd4 13. Qxa8 dxc3 14. dxc3 a6 15. Bd5 Bh6 16. a4 b4 17. Qb7 Qc5 18. Qxb8+ Kd7 19. Bxg8 bxc3 20. Qb7+ Ke8 21. Be6 Kf8 22. b4 Qh5 23. Ra2 c2 24. Kd2 Qe2+ 25. Kc3 Bf4 26. Kb3 Bd6 27. f3 Bxh2 28. Qc8+ Kg7 29. Rxc2 Bxc2+ 30. Qxc2 Qxc2+ 31. Kxc2 Bg3 32. e4 h5 33. Kd3 Rd8+ 34. Ke3 Rd6 35. Bd5 e5 36. Ke2 f5 37. Rg1 h4 38. Bd2 fxe4 39. fxe4 Bf4 40. Bxf4 exf4 41. Kf3 Rb6 42. Kxf4 Rxb4 43. Kg5 Rxa4 44. Rh1 a5 45. Rxh4 Ra1 46. e5 Rg1+ 47. Rg4 Rxg4+ 48. Kxg4 a4 49. Kg5 a3 50. e6 Kh7 51. e7 Kg7 52. e8=Q Kh7 53. Qg8# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 33 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 Bg4 7. Nc3 dxc4 8. Bxc4 Nd7 9. d4 e5 10. Rg1 Nh6 11. e4 Bxf3 12. Qxf3 Bc5 13. Rxg7 Nb6 14. Qh5+ Kf8 15. Rf7+ Ke8 16. Rxb7+ Kf8 17. Bxh6# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 35 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 Bg4 7. Nc3 dxc4 8. Bxc4 Nd7 9. d4 Bxf3 10. Qxf3 g6 11. Be6 Nb8 12. Ne4 Qa5+ 13. Bd2 Qb5 14. b3 f5 15. Qf4 Nh6 16. Qc7 Qd5 17. Bxd5 Bg7 18. Qc8# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 133 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 Bd3 8. Be6 Qd6 9. Nd4 Be4 10. Qb3 h5 11. Bf7+ Kd7 12. f3 Kc8 13. Be6+ Nd7 14. fxe4 Nh6 15. Nc3 Kb8 16. Qc4 Nc5 17. a4 Nxe6 18. Qxe6 a6 19. d3 c5 20. Qxd6+ exd6 21. Ne6 Ka7 22. Nd5 Rc8 23. O-O Ng4 24. Bd2 Re8 25. Nec7 Re5 26. h4 c4 27. dxc4 Rxe4 28. b3 Ne5 29. Nf4 Rh6 30. Nfe6 Rg6+ 31. Kf2 Be7 32. Nf4 Rg4 33. Ncd5 Ng6 34. Nxg6 Rxg6 35. Rg1 Rgg4 36. Rxg4 hxg4 37. Rh1 f5 38. Bb4 Bf8 39. h5 b6 40. Bc3 Re8 41. Bd4 Kb7 42. Nxb6 Kc6 43. Nd5 Re4 44. Rf1 Be7 45. Bxg7 Kd7 46. Ke2 g3 47. Rxf5 g2 48. Kf2 Re6 49. Kxg2 Bh4 50. h6 Rg6+ 51. Kh3 Rxh6 52. Bxh6 Be1 53. Bf4 Kc6 54. Rf6 Kb7 55. Bxd6 Bd2 56. Kg4 Bc1 57. Be5 a5 58. Bc3 Kc8 59. Kf5 Ba3 60. Bxa5 Kd7 61. Ke5 Kc8 62. Rf7 Bb2+ 63. Kd6 Kb8 64. Kc6 Ba3 65. Rb7+ Kc8 66. Bc7 Be7 67. Nxe7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 49 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 b5 8. Bb3 e5 9. d4 exd4 10. Nxd4 Be4 11. Rg1 h5 12. Nc3 Bb4 13. Rxg7 Qa5 14. Bf7+ Kf8 15. Ne6+ Ke7 16. Bxg8+ Ke8 17. Qd4 f5 18. Qf6 Bxc3+ 19. bxc3 Qxc3+ 20. Qxc3 Rxg8 21. Rxg8+ Kf7 22. Qg7+ Kxe6 23. Re8+ Kd6 24. Qe5+ Kd7 25. Qe7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 61 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 g6 7. cxd5 cxd5 8. Nc3 Bg4 9. Rg1 Bh5 10. Bb5+ Nc6 11. d4 Rc8 12. a3 a6 13. Be2 Qd6 14. Rg3 b5 15. a4 bxa4 16. Bxa6 Qe5 17. dxe5 Rd8 18. Qxa4 Bg7 19. Qxc6+ Kf7 20. Nxd5 Bxf3 21. Rxf3 h5 22. Nc7 g5 23. Ne6 Nh6 24. Nxg7 Kxg7 25. exf6+ Kg6 26. fxe7+ Rd6 27. Qxd6+ Kg7 28. Qf6+ Kh7 29. Bd3+ Nf5 30. Bxf5+ Kg8 31. e8=Q# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 107 moves | 1. Nf3 d5 2. c4 c6 3. g4 Bxg4 4. Ne5 Bf5 5. e3 f6 6. Nf3 dxc4 7. Bxc4 Bd3 8. Be6 Nh6 9. Nc3 Nf5 10. Rg1 Nd7 11. b4 Nd6 12. Nd4 Ne5 13. f4 Rc8 14. fxe5 Nc4 15. Bxc8 Qxc8 16. exf6 exf6 17. Qf3 Ne5 18. Qg2 h5 19. a4 Kf7 20. b5 Qg4 21. Qxg4 hxg4 22. bxc6 bxc6 23. Rg2 c5 24. Ndb5 a6 25. Nc7 Bd6 26. N7d5 Nf3+ 27. Kf2 Nxh2 28. Nf4 Bxf4 29. exf4 Rh3 30. Ba3 Nf1 31. Bxc5 Rf3+ 32. Kg1 Rxf4 33. Nd5 Rf5 34. Nb4 Bc4 35. d3 Rxc5 36. Kxf1 Be6 37. Nxa6 Rc3 38. Rd1 Ke7 39. Re2 Kd6 40. Re3 Bb3 41. Ra1 f5 42. Nb4 f4 43. Re4 g5 44. a5 Bc2 45. a6 Rb3 46. Nxc2 Rb8 47. a7 Ra8 48. Ra6+ Kd7 49. Re5 Kc8 50. Rxg5 Kb7 51. Nb4 Rd8 52. a8=Q+ Kc7 53. Qc6+ Kb8 54. Rb5# |