| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 45 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qg6 10. Bxc4 e6 11. d4 Be7 12. h5 Bc5 13. hxg6 fxg6 14. dxc5 Nd7 15. Nxe6 Rc8 16. Nxg7+ Kd8 17. Bg5+ Kc7 18. Ne6+ Kb8 19. Qxd7 Nf6 20. Bxf6 a5 21. Ba6 Rc7 22. Qxc7+ Ka8 23. Qb7# |
| 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. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qd7 10. Bxc4 e6 11. d4 h6 12. Nf3 c5 13. Be3 Nf6 14. Ne5 Qb7 15. dxc5 Nxe4 16. Qa4+ Ke7 17. O-O-O Kf6 18. Nd7+ Nxd7 19. c6 e5 20. cxb7 Rd8 21. Rxd7 Bd6 22. Rxf7+ Kg6 23. Qc2 Kh7 24. Qxe4+ Kg8 25. Rf4# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 65 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Bg4 8. Bxc4 e6 9. d4 Bxc5 10. dxc5 Qxd1+ 11. Kxd1 Nd7 12. Ke1 Nxc5 13. Ne5 Bh5 14. f3 Ne7 15. Be3 Nd7 16. Nxd7 Kxd7 17. g4 b3 18. gxh5 bxa2 19. Rxa2 a5 20. Ke2 Ke8 21. Rd1 a4 22. h6 Rg8 23. hxg7 Rxg7 24. Bg5 Rb8 25. Rxa4 Rxb2+ 26. Kf1 Rb8 27. Ra7 Nd5 28. exd5 cxd5 29. Ba6 h5 30. Bd3 Rb3 31. Bf6 Rb5 32. Bxb5+ Kf8 33. Ra8# |
| 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. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qd7 10. Bxc4 e6 11. d4 c5 12. d5 Nf6 13. dxe6 Qxd1+ 14. Kxd1 fxe6 15. Bxe6 h6 16. Nf7 Bd6 17. Nxh8 Nxe4 18. Re1 Nxf2+ 19. Ke2 Bg3 20. Bd5 Nd7 21. Kf1+ Kd8 22. Bxa8 Bxh4 23. Bf4 g6 24. Nf7+ Kc8 25. Re8+ Bd8 26. Rxd8# |
| 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. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 f5 7. Bxc4 fxe4 8. Ng5 Nh6 9. Qc2 Bf5 10. O-O e3 11. Qb3 exf2+ 12. Rxf2 Qa5 13. Bf7+ Kd8 14. Be6 Bg6 15. Rf4 Ke8 16. d4 Nd7 17. Bxd7+ Kxd7 18. Bd2 Nf5 19. Nc5+ Kc8 20. Qe6+ Kb8 21. Qxc6 Qxc5 22. dxc5 a5 23. Qb6+ Kc8 24. Ne6 Kd7 25. Re1 Ke8 26. Qc6+ Kf7 27. Ng5+ Kg8 28. Qe6+ Bf7 29. Qxf7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 41 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qg6 10. Bxc4 e6 11. d4 Be7 12. h5 Bc5 13. hxg6 f6 14. Nxe6 b3 15. dxc5 Nd7 16. Nxg7+ Kf8 17. Ne6+ Ke8 18. g7 h6 19. gxh8=Q Rb8 20. Qxg8+ Ke7 21. Qd6# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 37 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 f5 7. Bxc4 fxe4 8. Ng5 Nh6 9. Qb3 a5 10. Bf7+ Kd7 11. Ne6 g5 12. Nac5+ Kd6 13. Nxe4+ Ke5 14. Qg3+ Kd5 15. N6xg5+ Kd4 16. Qe3+ Ke5 17. f4+ Kf5 18. Ng3+ Kg4 19. Bh5# |
| 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. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qg6 10. Bxc4 e6 11. d4 Be7 12. h5 Qf6 13. e5 Qxg5 14. Bxg5 Bxg5 15. Qg4 Bh6 16. a3 bxa3 17. Rxa3 Nd7 18. Qf3 Ne7 19. g4 Bg5 20. O-O h6 21. Rfa1 Rb8 22. Rxa7 Rxb2 23. Qa3 Rb8 24. Rxd7 c5 25. Qa7 Nc6 26. Qc7 Nd8 27. Qxb8 Kxd7 28. Bb5+ Nc6 29. Ra7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 55 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 f5 7. Bxc4 fxe4 8. Ng5 Nh6 9. Qc2 Bf5 10. O-O e3 11. d3 exf2+ 12. Rxf2 Qd4 13. Nf3 Qd6 14. Bxh6 Qxh6 15. Qb3 Qf4 16. Qxb4 Qc7 17. Re1 a5 18. Qc5 Ra6 19. Qxf5 Kd8 20. Ne5 Nd7 21. Nf7+ Ke8 22. Nxh8 Ra7 23. Rff1 g6 24. Qf7+ Kd8 25. Qxf8+ Nxf8 26. Rxf8+ Kd7 27. Be6+ Kd6 28. Nf7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 119 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Bg4 8. Bxc4 e6 9. d4 Bxc5 10. dxc5 Qxd1+ 11. Kxd1 Nd7 12. Ke1 Nxc5 13. Ne5 Bh5 14. f3 f5 15. exf5 exf5 16. Be3 Nd7 17. Nxd7 Kxd7 18. Rd1+ Ke8 19. Bc5 a5 20. Kf2 Nf6 21. Rhe1+ Ne4+ 22. Kg1 Bf7 23. Bxf7+ Kxf7 24. fxe4 fxe4 25. Rxe4 Rhe8 26. Rd7+ Kg8 27. Rxe8+ Rxe8 28. Bd4 Re4 29. Bxg7 Rxh4 30. Bd4 Rh5 31. Bb6 Rb5 32. Bc7 a4 33. Bf4 Rd5 34. Re7 Rd1+ 35. Kf2 Ra1 36. Rb7 c5 37. Be5 Rxa2 38. Kf1 a3 39. bxa3 bxa3 40. Rg7+ Kf8 41. Rxh7 Rd2 42. Rc7 a2 43. Rxc5 Ke7 44. g4 Ke6 45. Ra5 Rd5 46. Rxd5 Kxd5 47. Bf6 Ke4 48. Kg2 Kf4 49. Kh3 Ke3 50. Kg3 Kd3 51. g5 a1=R 52. Bxa1 Kc4 53. g6 Kd5 54. g7 Kc5 55. g8=Q Kb5 56. Kf4 Kb4 57. Qd5 Ka4 58. Bc3 Ka3 59. Qb5 Ka2 60. Qb2# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 69 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 g5 8. Nxe6 fxe6 9. hxg5 Nd7 10. Bxc4 Qb6 11. d4 O-O-O 12. Bxe6 c5 13. d5 Qd6 14. g6 h5 15. g4 Kb8 16. Rxh5 Bg7 17. Rxh8 Bxh8 18. Qa4 Bg7 19. Qb5+ Ka8 20. Qc6+ Kb8 21. Qxd6+ exd6 22. Bg5 Ngf6 23. Rc1 Ne5 24. Nxe5 dxe5 25. Rxc5 a6 26. Rc6 Rf8 27. Rb6+ Kc7 28. Rxb4 Rh8 29. Rc4+ Kb6 30. d6 Rh1+ 31. Ke2 Rh2 32. d7 Nxg4 33. d8=Q+ Ka7 34. Qd7+ Kb6 35. Bd8# |
| 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. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qd7 10. Bxc4 e6 11. d4 c5 12. d5 h6 13. dxe6 Qa4 14. exf7+ Ke7 15. fxg8=N+ Rxg8 16. Qxa4 Rh8 17. Bd5 a6 18. Qa5 Nd7 19. Bxa8 hxg5 20. Bxg5+ Ke6 21. Bd5+ Ke5 22. Qc7+ Bd6 23. f4+ Kd4 24. Rd1+ Ke3 25. Rh3# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 77 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. d4 cxd3 6. exd3 Nf6 7. Be2 Bg4 8. Ne5 Bxe2 9. Qxe2 Qd4 10. Nf3 Qg4 11. O-O Nbd7 12. Bg5 h6 13. Bxf6 Nxf6 14. Qe5 Qd7 15. Rfe1 Rd8 16. a4 b4 17. Ne4 Ng4 18. Qf4 Qe6 19. Nc5 Qd6 20. Qxb4 e6 21. Rac1 h5 22. Qb7 Rb8 23. Qxa7 Rxb2 24. Ne4 Qxd3 25. Rcd1 Bc5 26. Qa8+ Ke7 27. Qxh8 Nxf2 28. Rxd3 Nxd3+ 29. Nxc5 Nxe1 30. Nxe1 Rb1 31. Kf2 g6 32. Qd4 Rc1 33. a5 Rb1 34. a6 Rc1 35. a7 Rxe1 36. a8=Q Rf1+ 37. Kxf1 f5 38. Qad8+ Kf7 39. Q4d7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 119 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Bg4 8. Bxc4 e6 9. d4 Bxc5 10. dxc5 Qxd1+ 11. Kxd1 Nd7 12. Ke1 Nxc5 13. Ne5 Bh5 14. f3 Bg4 15. Nxg4 f5 16. Be3 Nd7 17. Nf2 Ke7 18. exf5 exf5 19. Nd3 a5 20. a3 bxa3 21. bxa3 Ngf6 22. Kf1 Kf8 23. Nf4 Nd5 24. Nxd5 cxd5 25. Bxd5 Re8 26. Bd4 Re7 27. Rc1 Re8 28. Rc7 Rb8 29. Rxd7 Ke8 30. Rb7 Rxb7 31. Bxb7 Kd7 32. Kf2 Rb8 33. Rb1 Kd6 34. Bxg7 Kc5 35. g3 Rg8 36. Bc3 a4 37. Rb4 Rb8 38. Bd4+ Kd6 39. Ba7 Re8 40. Rxa4 Kc7 41. Rb4 Kd6 42. Bd4 h6 43. Rb6+ Kc7 44. Rb5 Re6 45. a4 Re7 46. a5 Rd7 47. Be5+ Kd8 48. Ke2 Re7 49. a6 Rxe5+ 50. Rxe5 Kc7 51. Re7+ Kb6 52. Bc8 Kc6 53. Bxf5 Kd6 54. Re8 Kc6 55. a7 Kb6 56. a8=Q Kb5 57. Qb7+ Kc5 58. Qc7+ Kb4 59. Rb8+ Ka3 60. Qa5# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 41 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qg6 10. Bxc4 e6 11. d4 Be7 12. h5 f5 13. hxg6 Bxg5 14. Rxh7 e5 15. Rxh8 Bxc1 16. Rxg8+ Kd7 17. dxe5+ Bd2+ 18. Qxd2+ Kc7 19. Qd8+ Kb7 20. Rxg7+ Nd7 21. Rxd7# |
| 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. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Bg4 8. Bxc4 e6 9. d4 Bxc5 10. dxc5 Qxd1+ 11. Kxd1 Nd7 12. Ke1 Nxc5 13. Ne5 Bh5 14. f3 Ne7 15. Be3 Nd7 16. Nxd7 Kxd7 17. g4 b3 18. gxh5 bxa2 19. Rxa2 a5 20. Ke2 Ke8 21. Bb6 a4 22. Rd1 Ng8 23. Rd6 Nf6 24. h6 Rg8 25. Bd4 Ra6 26. Bxa6 Ke7 27. Rxc6 a3 28. hxg7 Nh5 29. Rc7+ Kd6 30. Rxf7 e5 31. Bxe5+ Kxe5 32. Rf5+ Kd6 33. Rxh5 axb2 34. Rxb2 Kd7 35. Bc4 Rxg7 36. Rb7+ Kc6 37. Rxg7 Kb6 38. Rgxh7 Kc6 39. Rd5 Kb6 40. h5 Kc6 41. Ke3 Kb6 42. h6 Kc6 43. Rg7 Kb6 44. h7 Kc6 45. h8=Q Kb6 46. Qh6# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 43 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. d4 cxd3 6. exd3 Nf6 7. Be2 Bg4 8. Ne5 Bxe2 9. Qxe2 e6 10. Bd2 Bd6 11. d4 Qb6 12. Be3 Nbd7 13. Nxd7 Nxd7 14. d5 Qc7 15. dxe6 fxe6 16. Bg5 Kf7 17. O-O-O Nf6 18. Rhe1 Bf4+ 19. Kb1 Rhe8 20. Bxf6 Kxf6 21. Qe4 Red8 22. Qxe6# |
| 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. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 f5 8. Nxe6 Qd6 9. exf5 Nh6 10. Bxc4 Nxf5 11. d4 b3 12. Qxb3 c5 13. Qb7 Nxd4 14. Qc8+ Kf7 15. Neg5+ Kf6 16. Ne4+ Kg6 17. Qg4# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 47 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qg6 10. Bxc4 e6 11. d4 Bd6 12. h5 Qf6 13. e5 Bxe5 14. dxe5 Qxe5+ 15. Be3 Nh6 16. O-O Nd7 17. Qf3 Rd8 18. Rad1 Qc7 19. Nxf7 Qg3 20. fxg3 Rf8 21. Bxh6 gxh6 22. Nd6+ Ke7 23. Qf7+ Rxf7 24. Rxf7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 47 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qd7 10. Bxc4 e6 11. d4 Nf6 12. e5 h6 13. exf6 hxg5 14. Bxg5 g6 15. h5 gxh5 16. Rxh5 Rxh5 17. Qxh5 Qxd4 18. Qe2 Qc5 19. Bf4 Nd7 20. Bxe6 fxe6 21. Qxe6+ Kd8 22. Rd1 Qd5 23. Rxd5 Bg7 24. Qxd7# |