| 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. 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. Bf4 h6 13. Nf3 Nxe4 14. Qe2 Nd6 15. Bd3 Be7 16. Qe5 Rg8 17. Rc1 Qd8 18. Qc5 Nf5 19. Qc4 Bd6 20. Bxd6 Nxd6 21. Qxb4 a5 22. Qd2 Qb6 23. b3 a4 24. b4 a3 25. O-O Ra4 26. Rb1 Nd7 27. Qf4 Nb5 28. Rb3 Nf6 29. Re1 Nd5 30. Qg4 Rxb4 31. Rxe6+ fxe6 32. Qxe6+ Kf8 33. Ne5 Ne3 34. Qf7# |
| 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. 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 Bxg4 18. Rd1+ Ke8 19. fxg4 a5 20. Rf1 Ng6 21. h5 Ne5 22. Be2 f6 23. g5 Rf8 24. Bc5 Rf7 25. Rd6 Re7 26. gxf6 gxf6 27. h6 Kf7 28. Bh5+ Kg8 29. Rd2 Rd7 30. Rxd7 Nxd7 31. Be7 c5 32. Bxf6 Nxf6 33. Rxf6 e5 34. Rf5 Rf8 35. Rxe5 Rc8 36. Re7 c4 37. Rg7+ Kh8 38. Ra7 c3 39. bxc3 bxc3 40. Kd1 c2+ 41. Kc1 Rc4 42. Ra8+ Rc8 43. Rxc8# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z in 91 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 f5 7. Bxc4 fxe4 8. Ne5 Be6 9. Bxe6 Qd6 10. Bxg8 Qxe5 11. Qb3 Qf5 12. Qe6 Qxe6 13. Bxe6 Nd7 14. O-O Rd8 15. Re1 Nf6 16. a3 bxa3 17. Rxa3 Rd3 18. Nc5 Rxa3 19. bxa3 h5 20. Nxe4 Nxe4 21. Rxe4 Rh6 22. d4 Rg6 23. g3 Rf6 24. Kg2 a5 25. Bg5 Rg6 26. f4 Rxg5 27. fxg5 g6 28. Rf4 Bg7 29. Bf7+ Kd7 30. Bxg6 Kd6 31. Bxh5 Kd5 32. Rf7 Bxd4 33. g6 e6 34. Rd7+ Ke4 35. Rxd4+ Kxd4 36. g7 c5 37. g8=Q c4 38. Qg4+ Kd5 39. Kf3 c3 40. Bf7 a4 41. Qxe6+ Kc5 42. Qe5+ Kb6 43. Qxc3 Kb7 44. Qb4+ Kc7 45. Qxa4 Kd6 46. Qd4+ |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 83 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 Be6 7. Nc5 c3 8. Nxe6 cxb2 9. Bxb2 fxe6 10. Ng5 Nf6 11. e5 Qd5 12. exf6 exf6 13. Qh5+ g6 14. Qg4 Nd7 15. Nxe6 Bd6 16. Bc4 Qa5 17. Ng7+ Kd8 18. Qe6 Kc7 19. O-O Rhd8 20. Bxf6 Nxf6 21. Qxf6 Kb8 22. d4 Qb6 23. Ne8 Bc7 24. Nxc7 Kxc7 25. Rad1 Rd6 26. Be6 Rad8 27. Rfe1 Kb8 28. Qe5 h5 29. g3 Ka8 30. Re4 c5 31. d5 c4 32. Rdd4 Rf8 33. Qg7 Rdd8 34. d6 b3 35. axb3 cxb3 36. Bd5+ Kb8 37. Rb4 Rxd6 38. Qxf8+ Kc7 39. Qe7+ Kc8 40. Qe8+ Kc7 41. Re7+ Rd7 42. Rxd7# |
| 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. 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 Bxg4 18. Rd1+ Ke8 19. fxg4 a5 20. Bd4 Rg8 21. Bb6 a4 22. Bc5 Rb8 23. Rf1 Rb7 24. Rf2 Ng6 25. Rd6 Ne7 26. Rfd2 Rb8 27. Bxb4 Ng6 28. Bc5 Nxh4 29. Rf2 g6 30. Rxc6 h5 31. Rc7 Kd8 32. Rcxf7 Ra8 33. Rd2+ Ke8 34. Re7+ Kf8 35. Ra7+ Ke8 36. Bb5# |
| 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 f5 7. Bxc4 fxe4 8. Ng5 Nh6 9. Qc2 Bf5 10. O-O Qd6 11. f4 exf3 12. d3 fxg2 13. Kxg2 Qd4 14. Rf4 Qe5 15. Kg3 g6 16. Qd1 Nd7 17. d4 Qd6 18. Bd2 Nf6 19. Kg2 Nh5 20. Rg4 Nxg4 21. Qf3 Qh2+ 22. Kf1 Bg7 23. Qxc6+ Kf8 24. Qxa8+ Qb8 25. Qxb8+ Bc8 26. Qxc8# |
| 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 Qc8 8. Nxe6 Qxe6 9. Ng5 Qd7 10. Bxc4 e6 11. d4 Nf6 12. e5 h6 13. exf6 hxg5 14. Bxg5 g6 15. h5 a5 16. h6 Qd6 17. Qg4 Nd7 18. O-O-O Nb6 19. Bf4 Qd7 20. Bxe6 fxe6 21. Qxg6+ Qf7 22. Qxf7+ Kxf7 23. h7 Nd7 24. Rh4 Nxf6 25. Rdh1 c5 26. Be5 cxd4 27. Bxd4 Bg7 28. Rf4 Rad8 29. g4 Kg6 30. Re1 Rxh7 31. Rxe6 Rc8+ 32. Kd2 Kg5 33. Be3 Rc5 34. Rfxf6+ Kh4 35. Bxc5 Bxf6 36. Rxf6 Kxg4 37. Ra6 Rh5 38. Rxa5 Rd5+ 39. Ke3 Re5+ 40. Kd3 Rf5 41. Rb5 Kf3 42. Kc4 Rf4+ 43. Kb3 Re4 44. Rxb4 Re5 45. Rc4 Re4 46. a4 Re8 47. a5 Re6 48. Be3 Ke2 49. Kb4 Rd6 50. Rd4 Rf6 51. b3 Kf3 52. Rf4+ Kg2 53. Rxf6 Kf1 54. a6 Ke2 55. Kc4 Ke1 56. a7 Kf1 57. a8=Q Ke2 58. Qf3+ Ke1 59. Rd6 Kf1 60. Rd1# |
| 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 Bg4 8. Bxc4 e6 9. Ne5 Bxd1 10. Nxf7 Kxf7 11. Nxe6 Qe7 12. Kxd1 Kg6 13. h5+ Kf6 14. d4 h6 15. Rh3 Qe8 16. Rf3+ Ke7 17. Nc7 Qxh5 18. Nxa8 c5 19. dxc5 Nf6 20. a4 Nxe4 21. Kc2 Qxc5 22. b3 Qd4 23. Rf7+ Kd8 24. Nc7 Nxf2 25. Ne6+ Kc8 26. Rc7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 75 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. d4 cxd3 6. exd3 Nf6 7. Be2 Bg4 8. Bf4 Nbd7 9. O-O e6 10. d4 g6 11. Ne5 Bxe2 12. Qxe2 Rc8 13. g3 Qb6 14. Nxd7 Nxd7 15. Rad1 Be7 16. Bh6 Rd8 17. Ne4 Rg8 18. Qf3 f5 19. Ng5 Nf8 20. Rfe1 Bxg5 21. Bxg5 Rd6 22. Qa3 b4 23. Qe3 Rd5 24. Bh6 Rd6 25. Qe5 Qd8 26. Qc5 a5 27. Bg5 Kd7 28. Bxd8 f4 29. Bxa5 fxg3 30. fxg3 b3 31. Qa7+ Ke8 32. Qb8+ Ke7 33. Bb4 c5 34. Bxc5 Kf6 35. Bxd6 bxa2 36. Qd8+ Kg7 37. Be5+ Kf7 38. Rf1# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 59 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 Nd7 11. d4 c5 12. Bf4 Qb6 13. Nc7+ Kd8 14. Nxa8 Qc6 15. Be6 Qxa8 16. dxc5 Qe4+ 17. Be3 Qc6 18. Ne5 Qc7 19. Nxd7 Ke8 20. Bxh6 a6 21. Qd4 Qd8 22. Bxg7 b3 23. Bxh8 Qa5+ 24. Qc3 Qa4 25. Nxf8 Qe4+ 26. Kf1 Qg4 27. Qxb3 Qf4 28. Nxh7 a5 29. Qb5+ Kd8 30. Qd7# |
| 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 f5 8. Nxe6 Qa5 9. exf5 Nf6 10. Bxc4 Nbd7 11. O-O g6 12. fxg6 hxg6 13. Qc2 Rg8 14. Nc7+ Qxc7 15. Bxg8 O-O-O 16. Be6 Kb8 17. Re1 Qd6 18. Qxg6 Nc5 19. Bc4 Ncd7 20. Re6 Qc5 21. d3 Qb6 22. Bf4+ Ka8 23. d4 Qb7 24. Ne5 Nxe5 25. Bxe5 Qb6 26. Re1 Qb7 27. Bxf6 Rd7 28. Qe8+ Qb8 29. Qxd7 Qb7 30. Qe8+ Qb8 31. Qxc6+ Qb7 32. Qe8+ Qc8 33. Qxc8# |
| 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 Be6 7. Nc5 Qc8 8. Nxe6 Qxe6 9. Ng5 Qg6 10. Bxc4 e6 11. d4 Be7 12. h5 e5 13. hxg6 fxg6 14. Nf7 Nf6 15. Nxh8 exd4 16. Qxd4 Nbd7 17. e5 Bc5 18. Qf4 Nd5 19. Qf7+ Kd8 20. Bxd5 cxd5 21. Qg8+ Bf8 22. e6 d4 23. exd7 Kc7 24. Qc4+ Kd8 25. Nf7+ Kxd7 26. Ne5+ Kd6 27. Qc6+ Ke7 28. Bg5# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 117 moves | 1. Nf3 d5 2. c4 c6 3. h4 dxc4 4. Nc3 b5 5. e4 b4 6. Na4 f5 7. Bxc4 fxe4 8. Ng5 Nf6 9. Bf7+ Kd7 10. Qb3 e5 11. Bc4 Kc7 12. Nf7 Qd4 13. Nxh8 Ng4 14. O-O Be7 15. Nf7 a5 16. g3 Nd7 17. d3 e3 18. Bxe3 Nxe3 19. fxe3 Qxe3+ 20. Kg2 Nf6 21. Qc2 Bg4 22. Rae1 b3 23. Rxe3 bxc2 24. Rxe5 Bb4 25. b3 Re8 26. Rxe8 Nxe8 27. Rc1 Bd1 28. d4 Bd2 29. Ra1 c1=R 30. Rxc1 Bxc1 31. Nc5 Be3 32. Ne5 Nd6 33. Bd3 a4 34. bxa4 g6 35. a5 Nb5 36. Ne6+ Kd6 37. Nc4+ Kxe6 38. Nxe3 Ba4 39. a6 Na7 40. Kf3 Kd7 41. Ke4 Kc7 42. Bc4 Nb5 43. Ke5 Kb6 44. Bg8 c5 45. dxc5+ Kxc5 46. Bxh7 Nd4 47. Bxg6 Bb5 48. h5 Bd7 49. h6 Nc6+ 50. Kf6 Kd4 51. Nc2+ Kc5 52. h7 Bg4 53. h8=Q Bd7 54. Qa8 Kd6 55. a7 Nxa7 56. Qb8+ Kc5 57. Qxa7+ Kd6 58. Be4 Be6 59. Qe7# |
| 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 Qg6 10. Bxc4 e6 11. d4 Be7 12. h5 Qf6 13. Rh3 Bd6 14. Rf3 Bf4 15. Bxf4 Qe7 16. Nxf7 Qxf7 17. Bxb8 Nf6 18. Be5 Qxh5 19. Bxf6 gxf6 20. Rxf6 Qh1+ 21. Kd2 Qxg2 22. Qh5+ Kd8 23. Qa5+ Kd7 24. Bxe6+ Ke7 25. Qc7+ Ke8 26. Qd7# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 87 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 Bxg4 18. Rd1+ Ke8 19. fxg4 h5 20. g5 a5 21. Bd4 Rg8 22. Bb6 Ng6 23. Rd6 Ne5 24. Bxe6 Ke7 25. Bc5 fxe6 26. Rd5+ Kf7 27. Rxe5 Rge8 28. a4 bxa3 29. Rf1+ Kg6 30. Bxa3 a4 31. Rc5 Ra6 32. Rf2 Kh7 33. Rf7 Rb6 34. Ra7 Rd8 35. Re5 Re8 36. Rxa4 Rb3 37. Ra6 Rb5 38. Rxb5 cxb5 39. Rb6 Rc8 40. Rxe6 Rc2 41. g6+ Kh6 42. Bd6 Rc1+ 43. Kf2 Rc4 44. Bf4# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 53 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. Ne1 g6 15. Bf4 Qd4 16. Bg3 Ng4 17. Nf3 Qf6 18. Re2 Nd7 19. Rae1 Rc8 20. Kh1 a5 21. Ng5 c5 22. Nf7 b3 23. Qxb3 Rc6 24. Nxh8 Qd4 25. Qb7 Qxh8 26. Qxc6 Bh6 27. Qc8# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 93 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 Bxf3 13. gxf3 Nxc5 14. Rg1 Kf8 15. Be3 Nd7 16. Bf4 e5 17. Rd1 Ngf6 18. Be3 a5 19. Rd6 Rc8 20. Ba6 Rc7 21. Bc4 Ke7 22. Rd2 g6 23. a3 Rd8 24. Bg5 c5 25. a4 Rc6 26. b3 Rb6 27. Bb5 Re8 28. Rxd7+ Kf8 29. Rc7 Rd8 30. Rxc5 Rbd6 31. Bh6+ Kg8 32. Be2 Re8 33. Rxa5 Nd7 34. Bb5 f6 35. Ra7 Rd8 36. Bc4+ Kh8 37. a5 Rd4 38. a6 Rc8 39. Rb7 Rd8 40. a7 Rd1+ 41. Kxd1 Nc5+ 42. Bd5 Nxb7 43. Ke2 Nd6 44. Ra1 Nxe4 45. fxe4 f5 46. a8=Q Rg8 47. Qxg8# |
| ECO A09 in 2007 play it! ziegler m defeats black's ziegler z by checkmate in 75 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 a5 13. a4 Nbd7 14. d5 Nc5 15. Nxc6 Nxd5 16. axb5 Nxe3 17. Qxe3 O-O 18. Rd1 Bc7 19. O-O f5 20. b3 f4 21. Qf3 Rae8 22. Rfe1 g6 23. b4 axb4 24. Nxb4 e5 25. Nbd5 Ne4 26. Nxb6 Nxc3 27. Qxc3 Bxb6 28. Rxe5 Rd8 29. Rxd8 Bxd8 30. Qc4+ Kg7 31. Re4 Bxh4 32. Rxf4 Bd8 33. Rd4 Bf6 34. Rd7+ Kh8 35. b6 Ra8 36. b7 Ra6 37. b8=Q+ Bd8 38. Qxd8# |
| 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 e5 13. hxg6 Na6 14. gxf7+ Kd7 15. fxg8=Q Raxg8 16. Bxa6 Bxg5 17. dxe5+ Kc7 18. Bxg5 Kb6 19. Qa4 Re8 20. Be3+ c5 21. Qb5+ Kc7 22. Qxc5+ Kd7 23. Qd6# |
| 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 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. Qxg5+ Kxe4 16. Qe3+ Kf5 17. Qf4# |