| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 127 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bf5 4. e3 f6 5. Nf3 Nc6 6. Nh4 Qd7 7. Nxf5 Qxf5 8. Nc3 Nb4 9. d3 c5 10. a3 Nc6 11. e4 dxe4 12. dxe4 Qe5 13. Bb5 Rd8 14. Qf3 g6 15. Bf4 Qe6 16. O-O a6 17. Nd5 Rd7 18. Bd3 Ne5 19. Qg3 Bh6 20. Bxe5 Qxe5 21. Qxe5 fxe5 22. Rfd1 Nf6 23. b4 Nxd5 24. exd5 Rc7 25. Re1 Bd2 26. Re4 Bc3 27. Ra2 cxb4 28. axb4 Kd7 29. b5 a5 30. b6 Rc5 31. Bc4 Rf8 32. Ra4 Rf4 33. Bb3 Rb5 34. Rxf4 exf4 35. Rc4 Rxb3 36. Rc7+ Kd6 37. cxb3 e5 38. Rxc3 Kxd5 39. Rc7 e4 40. Rxb7 Kc5 41. Rf7 Kxb6 42. Rxf4 Kc5 43. Rxe4 Kb5 44. Kg2 Kc5 45. Kf3 Kb5 46. Kf4 Kc5 47. Kg5 Kd6 48. Rh4 Kd5 49. Rxh7 Kd4 50. Kxg6 Kc3 51. Rh3+ Kb4 52. Rh5 Kxb3 53. Rxa5 Kb4 54. Rd5 Kc3 55. h4 Kc4 56. Rd8 Kc3 57. h5 Kc4 58. h6 Kc5 59. h7 Kc6 60. h8=Q Kb6 61. Qe5 Kb7 62. Qb5+ Kc7 63. Rd7+ Kc8 64. Qb7# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 115 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bf5 4. e3 Nf6 5. Nc3 e6 6. a3 Bd6 7. d4 Nbd7 8. Nxd7 Nxd7 9. Bd2 O-O 10. h3 Qh4 11. Rc1 Nf6 12. Qf3 Ne4 13. Rg1 Nxd2 14. Kxd2 c6 15. Bd3 Bxd3 16. cxd3 g6 17. Ke2 f5 18. Rge1 Rf7 19. Rg1 g5 20. Qg2 Be7 21. Qg3 Qxg3 22. fxg3 g4 23. h4 Kg7 24. Na4 Rc8 25. Nc5 Bxc5 26. Rxc5 Kf6 27. Rf1 b6 28. Rcc1 Rd7 29. b3 h6 30. Kd2 Ke7 31. Kc3 Kd6 32. b4 Ra8 33. e4 fxe4 34. dxe4 dxe4 35. Rf4 Kd5 36. Re1 a5 37. Rxg4 axb4+ 38. axb4 Rd6 39. Rexe4 Ra3+ 40. Kb2 h5 41. Kxa3 hxg4 42. Rxg4 Rd8 43. b5 c5 44. dxc5 bxc5 45. b6 Rb8 46. h5 Ke5 47. h6 Kd6 48. h7 Ra8+ 49. Kb3 Re8 50. Rg8 Re7 51. h8=Q Rb7 52. Rb8 Rd7 53. Kc4 Re7 54. Rd8+ Rd7 55. Qf8+ Kc6 56. Qxc5+ Kb7 57. Rxd7+ Ka8 58. Qc8# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 105 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bh5 4. d4 Nd7 5. Nxd7 Qxd7 6. Nc3 e6 7. Rg1 Nf6 8. f3 h6 9. Bf4 Bg6 10. a3 c5 11. Be5 cxd4 12. Bxd4 Bd6 13. e4 Rc8 14. e5 a6 15. exf6 gxf6 16. Bxf6 Rf8 17. Rg2 Be7 18. Bxe7 Qxe7 19. Qd4 Qc5 20. Qxc5 Rxc5 21. O-O-O Ke7 22. Bd3 Bxd3 23. Rxd3 Rd8 24. b4 Rc6 25. Rg7 Rdc8 26. Kb2 d4 27. Ne4 Rxc2+ 28. Kb3 e5 29. f4 Kf8 30. Rh7 exf4 31. Rxd4 R2c4 32. Rxc4 Rxc4 33. Kxc4 f3 34. Rxh6 b5+ 35. Kd3 Ke7 36. Rxa6 f5 37. Ng5 f2 38. Ke2 f1=R 39. Kxf1 Ke8 40. Rf6 f4 41. Rxf4 Kd7 42. Rd4+ Kc7 43. h4 Kc6 44. h5 Kc7 45. h6 Kc6 46. Ke2 Kb6 47. Ke3 Kc6 48. Ke4 Kb7 49. Ne6 Kb6 50. h7 Kc6 51. h8=Q Kb6 52. Qg7 Kc6 53. Qc7# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 49 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bf5 4. e3 f6 5. Nf3 Nc6 6. Nh4 Be6 7. d4 g5 8. Nf3 Bg4 9. Nc3 e5 10. dxe5 Bb4 11. h3 Bxf3 12. Qxf3 Nxe5 13. Qh5+ Kf8 14. Bd2 d4 15. exd4 Bxc3 16. Bxc3 Qd6 17. dxe5 Qd5 18. Rg1 Re8 19. Rd1 Qe4+ 20. Be2 Qxc2 21. exf6 Qf5 22. Bb4+ Ne7 23. Bxe7+ Rxe7 24. Rd8+ Re8 25. Rxe8# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 79 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bh5 4. d4 Nd7 5. Nxd7 Qxd7 6. Nc3 e6 7. Rg1 Nf6 8. Bg5 Be7 9. f3 Bg6 10. e4 dxe4 11. fxe4 Bb4 12. Bxf6 gxf6 13. Qd3 Qc6 14. Bg2 Bh5 15. Kd2 O-O-O 16. a3 Bxc3+ 17. bxc3 Qd6 18. Qg3 Qc5 19. Bf3 Bxf3 20. Qxf3 Qe5 21. Raf1 c5 22. Qxf6 Qxh2+ 23. Kd1 cxd4 24. cxd4 Qd6 25. c3 Qxa3 26. Kd2 Qb2+ 27. Kd3 Qb5+ 28. Kd2 Rhf8 29. Qe7 Rde8 30. Qd6 Qc4 31. Rg5 Qa2+ 32. Ke3 b6 33. Qc6+ Kd8 34. Rg7 e5 35. Qa8+ Ke7 36. Qb7+ Kd6 37. Rf6+ Re6 38. Rfxf7 exd4+ 39. Kd3 Qf2 40. Qd5# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 71 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bf5 4. e3 Nf6 5. Nc3 c6 6. d4 Nbd7 7. Bd3 Bxd3 8. Nxd3 Qc7 9. b3 e5 10. dxe5 Nxe5 11. h3 Bd6 12. Bd2 O-O 13. Rg1 Rfe8 14. Nxe5 Bxe5 15. Rb1 d4 16. Ne2 dxe3 17. Bxe3 Rad8 18. Qc1 Qa5+ 19. Kf1 Qxa2 20. Bg5 Kh8 21. Rg2 Bb2 22. Qe1 Bc3 23. Qc1 Qa6 24. f3 Rd7 25. Bxf6 Bxf6 26. Qe1 Rd5 27. c4 Rd3 28. Qg3 Qa2 29. Re1 Qxb3 30. Rf2 Bd4 31. Nxd4 Rxe1+ 32. Kg2 Rg1+ 33. Kxg1 Qd1+ 34. Rf1 Rxd4 35. Rxd1 Rd8 36. Rxd8# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 49 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bh5 4. c3 f6 5. Nd3 e5 6. Qb3 b6 7. Bh3 Nc6 8. Qa4 Qd6 9. b3 d4 10. Bg2 Qa3 11. Qxc6+ Ke7 12. Bxa3+ Kd8 13. Qxa8+ Kd7 14. Qe4 Bxa3 15. Nxa3 Bg6 16. Qc6+ Kd8 17. Bh3 Ke7 18. Qxc7+ Kf8 19. Qc8+ Ke7 20. Rg1 dxc3 21. dxc3 a5 22. Nc4 f5 23. Ndxe5 f4 24. Qe6+ Kf8 25. Nd7# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 105 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bf5 4. e3 f6 5. Nf3 Bg4 6. Rg1 Nh6 7. h3 Bh5 8. d4 e5 9. Be2 c6 10. dxe5 Bxf3 11. Bxf3 fxe5 12. e4 dxe4 13. Bxe4 Qxd1+ 14. Kxd1 Nd7 15. Bg5 Nf6 16. Bd3 O-O-O 17. Kc1 Nf7 18. Be3 e4 19. Bc4 Nd6 20. Be6+ Kb8 21. Nc3 Re8 22. Bb3 Nf5 23. Bf4+ Ka8 24. Bf7 Rd8 25. Rg5 Nd4 26. a3 Rd7 27. Bc4 b5 28. Ba2 h6 29. Rg6 Nd5 30. Bxd5 cxd5 31. Be3 Nf3 32. Nxb5 Rb7 33. a4 Rd7 34. Re6 Bb4 35. c3 Rc8 36. Kb1 Bf8 37. Ka2 Bc5 38. Rd1 Bxe3 39. fxe3 Ng5 40. Rd6 Rxd6 41. Nxd6 Rc5 42. Kb3 Nxh3 43. Kb4 Nf2 44. Kxc5 Ng4 45. Rxd5 Nxe3 46. Re5 Kb8 47. Rxe4 g5 48. Rxe3 h5 49. Re8+ Kc7 50. Re7+ Kb8 51. Kc6 a6 52. Kb6 g4 53. Re8# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 61 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Nf6 4. Nxg4 Nxg4 5. e4 Nf6 6. e5 Nfd7 7. d4 e6 8. c3 c5 9. Qb3 Qc7 10. Be3 Nc6 11. Nd2 cxd4 12. cxd4 Nb4 13. Bd3 Nxd3+ 14. Qxd3 Rc8 15. Qb3 b6 16. Rd1 f6 17. f4 Qc2 18. Qb5 Qf5 19. Qa6 Rc7 20. Rg1 Qh3 21. Qe2 Qh4+ 22. Rg3 Rc2 23. f5 exf5 24. exf6 h6 25. fxg7 Qxg3+ 26. Bf2+ Qe5 27. gxh8=Q Qxe2+ 28. Kxe2 Rxb2 29. Qg8 Rc2 30. Bh4 Rc4 31. Qg6# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 97 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bf5 4. e3 Nf6 5. Nc3 c6 6. d4 Nbd7 7. Bd3 Bxd3 8. Nxd3 Qc7 9. Qf3 e6 10. Bd2 Bd6 11. Rg1 Rg8 12. h3 a6 13. O-O-O O-O-O 14. Kb1 Kb8 15. Qe2 e5 16. dxe5 Nxe5 17. Nxe5 Bxe5 18. f4 Bd6 19. Rg5 h6 20. Rg2 Rde8 21. Qf2 Qb6 22. Na4 Qa7 23. Nc3 Re6 24. Qh4 Bc5 25. f5 Rd6 26. Qf4 Bxe3 27. Bxe3 b6 28. Qxd6+ Qc7 29. Qxf6 gxf6 30. Rxg8+ Kb7 31. Bxh6 Qe7 32. h4 Qb4 33. Re1 Kc7 34. h5 Qh4 35. Re7+ Kd6 36. Rxf7 Ke5 37. Rg6 Kxf5 38. Bg5 Qe1+ 39. Bc1 Qh4 40. Ne2 c5 41. Re7 b5 42. Ng3+ Qxg3 43. Rxg3 d4 44. h6 c4 45. h7 d3 46. Rf3+ Kg4 47. Rf4+ Kg5 48. Rg7+ Kh5 49. h8=Q# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 67 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bh5 4. c3 f6 5. Nd3 c6 6. Nc5 Nd7 7. Ne6 Qa5 8. Rg1 g5 9. d4 a6 10. Nd2 Nh6 11. h4 Bg4 12. Nb3 Nf5 13. Nxa5 Rb8 14. Rxg4 h5 15. Rg1 Nxh4 16. Nc7+ Kf7 17. Qb3 e5 18. Nxb7 a5 19. Bh3 g4 20. Bg2 Nxg2+ 21. Rxg2 exd4 22. Qa4 Ne5 23. Nxa5 dxc3 24. Nxc6 Nxc6 25. Qxc6 cxb2 26. Bxb2 Rxb2 27. Qe8+ Kg7 28. Ne6+ Kh6 29. Nxf8 Rxf8 30. Qxf8+ Kg6 31. Rh2 Rb6 32. Qg8+ Kh6 33. Qxg4 Rd6 34. Rxh5# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 89 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bh5 4. c3 f6 5. Nd3 e5 6. Bh3 Nc6 7. b4 Bd6 8. Be6 Bf7 9. Bxf7+ Kxf7 10. Qb3 Nce7 11. e4 Kf8 12. exd5 e4 13. Nb2 Bf4 14. c4 c6 15. Nc3 cxd5 16. cxd5 Rc8 17. Nba4 b6 18. Ba3 f5 19. b5 Nf6 20. d4 exd3 21. O-O Ng4 22. h3 Nh2 23. Rfd1 Nf3+ 24. Kh1 Qd7 25. Rxd3 Ne5 26. Rd4 Ng6 27. Re1 Be5 28. Rd3 Bd6 29. Kg1 Bxa3 30. Qxa3 f4 31. Re4 Qf5 32. d6 Ne5 33. dxe7+ Kf7 34. Rd5 Nf3+ 35. Kg2 Nh4+ 36. Kf1 Qxh3+ 37. Ke1 Ng2+ 38. Ke2 Rhe8 39. Qd6 Qf3+ 40. Kxf3 Rxc3+ 41. Nxc3 Nh4+ 42. Kg4 g5 43. Rxg5 Ra8 44. Qd5+ Kf6 45. Qe6# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard in 73 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bd7 4. e3 Nc6 5. Nxd7 Qxd7 6. d4 e5 7. dxe5 Nxe5 8. Nc3 O-O-O 9. Qh5 f5 10. Bd2 Nf6 11. Qe2 c6 12. O-O-O Bd6 13. Nb1 Kb8 14. f3 Rhe8 15. Bc3 Nc4 16. Rd3 Qe6 17. Rg1 Rd7 18. Bd4 c5 19. Bxf6 Qxf6 20. Nc3 d4 21. Nd1 Nxe3 22. c4 Bf4 23. Kb1 g5 24. h4 gxh4 25. Nxe3 Rxe3 26. Qf2 Qe6 27. Rd1 Bg3 28. Qg2 Qc6 29. Qc2 Qxf3 30. Bg2 Qg4 31. Qa4 Rde7 32. Rc1 Bf2 33. Qa5 b6 34. Qa4 Bxg1 35. Qc6 b5 36. Qa8+ Kc7 37. Qxa7+ |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 81 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bh5 4. d4 Nd7 5. Nxd7 Qxd7 6. c3 e6 7. Rg1 h6 8. Nd2 Nf6 9. b3 g5 10. f3 Bd6 11. Rg2 O-O-O 12. a3 Rhe8 13. Bb2 Bf4 14. a4 Bg6 15. Bc1 Qc6 16. c4 Bxd2+ 17. Qxd2 dxc4 18. bxc4 Qxc4 19. e4 Qb3 20. Ra3 Qb6 21. Bb2 Bxe4 22. fxe4 Nxe4 23. Qe3 Qa5+ 24. Kd1 Qd5 25. Qf3 f5 26. Qh3 Qa5 27. Bd3 Qb4 28. Bxe4 fxe4 29. Rc2 c6 30. Qxh6 Rxd4+ 31. Bxd4 Qxa3 32. Qg6 Qf3+ 33. Kc1 Rd8 34. Qxe6+ Kb8 35. Kb2 Qd1 36. Qe5+ Ka8 37. Be3 Qd3 38. Rd2 Qxd2+ 39. Bxd2 Rd7 40. Qe8+ Rd8 41. Qxd8# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 75 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 h5 4. Nxg4 hxg4 5. e3 Nf6 6. Nc3 d4 7. Nb5 dxe3 8. fxe3 e5 9. Bc4 Qd7 10. Qe2 a6 11. Nc3 b5 12. Bb3 Nc6 13. Qg2 Bb4 14. O-O Rh3 15. Ne4 Rd8 16. Rxf6 Rf3 17. Bxf7+ Ke7 18. Be6 Qe8 19. Rxf3 gxf3 20. Qg4 Ra8 21. c3 Nd8 22. Bd5 f2+ 23. Nxf2 Rc8 24. Qxc8 c6 25. Bg2 Bd6 26. Ne4 Qg6 27. b4 a5 28. bxa5 Qh6 29. Nxd6 Qxd6 30. a6 Ne6 31. Qxc6 Qxc6 32. Bxc6 Kd8 33. a7 Nf4 34. a8=Q+ Ke7 35. exf4 exf4 36. Ba3+ Ke6 37. Qf8 g5 38. Re1# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 63 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bh5 4. d4 Nd7 5. Nxd7 Qxd7 6. Nc3 e6 7. Rg1 Nf6 8. Bg5 Bb4 9. f3 Qc6 10. Bd2 O-O 11. a3 Bd6 12. Bg5 Nd7 13. Rg2 Qb6 14. b3 f6 15. Bd2 Rad8 16. Na4 Qc5 17. Nxc5 Nxc5 18. dxc5 Bxc5 19. e3 e5 20. Be2 Bg6 21. b4 Bb6 22. Rb1 Bf5 23. Bd3 e4 24. fxe4 dxe4 25. Bc4+ Kh8 26. Qh5 g6 27. Qh6 c6 28. Bc3 Bc7 29. Rd1 Be5 30. Bxe5 fxe5 31. Rxd8 Rg8 32. Rxg8# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 67 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Nf6 4. Nxg4 Nxg4 5. e4 h5 6. h3 Ne5 7. d4 Ng6 8. e5 e6 9. c3 Nd7 10. Bd3 Qh4 11. Bxg6 fxg6 12. Qf3 c5 13. Rg1 Kd8 14. Bg5+ Qxg5 15. Rxg5 cxd4 16. cxd4 Bb4+ 17. Nc3 Rc8 18. Rxg6 Rc4 19. Rxe6 Rxd4 20. Qf7 Rf8 21. Qxg7 Kc8 22. Rc1 Rc4 23. a3 Bc5 24. Rc2 a6 25. b3 d4 26. bxc4 dxc3 27. Rg6 Rf4 28. e6 Nf8 29. Rf6 Rxf6 30. Qxf6 Bxa3 31. Rxc3 Bb4 32. e7 Ba3 33. e8=Q+ Kc7 34. Qed8# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 63 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bh5 4. c3 f6 5. Nd3 e5 6. Bh3 Nc6 7. b4 Bd6 8. Be6 Bf7 9. Bxf7+ Kxf7 10. Qb3 Nce7 11. e4 a5 12. bxa5 f5 13. f4 fxe4 14. Nxe5+ Ke6 15. c4 Bxe5 16. fxe5 g5 17. O-O Kxe5 18. d4+ Kd6 19. Qxb7 Qb8 20. Qxb8 Rxb8 21. Nc3 c6 22. Bxg5 Kd7 23. Rf7 Ke6 24. Raf1 Rb2 25. a6 h5 26. a7 Nf5 27. R1xf5 Ne7 28. Bxe7 Rc8 29. cxd5+ Kd7 30. Bc5+ Kd8 31. Rf8+ Kc7 32. R5f7# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 65 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bf5 4. e3 f6 5. Nf3 Bg4 6. Rg1 Nh6 7. h3 Bh5 8. Be2 Qd7 9. Nc3 c6 10. Rg3 Nf5 11. Rg1 Nd6 12. Rg3 e5 13. d4 Nf5 14. Rg1 Bb4 15. dxe5 Bxf3 16. Bxf3 fxe5 17. Bd2 O-O 18. a3 Be7 19. e4 dxe4 20. Bxe4 Qd4 21. Qe2 g6 22. Rg4 Qb6 23. O-O-O Nd4 24. Qc4+ Kh8 25. Be3 Qa6 26. Qa2 Ne2+ 27. Nxe2 Qxe2 28. Qe6 Rc8 29. Qxe5+ Kg8 30. Qe6+ Kg7 31. Rxg6+ hxg6 32. Qxg6+ Kf8 33. Bh6# |
| ECO A06 in 2007 play it! zacharyziegler defeats black's thewizard by checkmate in 105 moves | 1. Nf3 d5 2. g4 Bxg4 3. Ne5 Bf5 4. e3 Nf6 5. Nc3 c6 6. d4 Nbd7 7. Nxd7 Nxd7 8. Bd3 Bxd3 9. cxd3 e6 10. Qb3 Rb8 11. e4 e5 12. dxe5 Nxe5 13. exd5 Nxd3+ 14. Ke2 Nc5 15. Qc4 cxd5 16. Nxd5 Bd6 17. Be3 b6 18. b4 Ne6 19. Qc6+ Kf8 20. Kf1 Rc8 21. Qb7 Be5 22. Re1 Rb8 23. Qc6 Qd6 24. Qxd6+ Bxd6 25. a4 Rc8 26. Rd1 Be5 27. Bxb6 Ba1 28. Bxa7 Bb2 29. a5 f5 30. Re1 Kf7 31. Bb6 Rc6 32. b5 Rd6 33. Ne3 Bc3 34. Rd1 Rxd1+ 35. Nxd1 Bf6 36. a6 Nd4 37. Bxd4 Bxd4 38. Ne3 g6 39. Ke2 Rb8 40. Nc4 Re8+ 41. Kf3 Re6 42. Rd1 Bc5 43. Rd5 Bb6 44. Nxb6 Re8 45. a7 Ke6 46. Ke3 h5 47. Kd4 Kf7 48. Kc5 g5 49. a8=Q Rh8 50. Qb7+ Kf6 51. Qc6+ Kf7 52. Rd7+ Kg8 53. Qc8# |