Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5
Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. O-O-O O-O-O 14. c4
c5 15. d5 e6 16. dxe6 fxe6 17. Qe2 Bd6 18. Ne4 Nxe4 19. Qxe4 Rhe8 20. Bc3 Nf6
21. Bxf6 gxf6 22. Kb1 f5 23. Qe2 e5 24. Nh4 Qf7 25. g4 f4 26. Qe4 Bc7 27. Nf5
Qf6 28. f3 Rxd1+ 29. Rxd1 Rd8 30. Rd5 Rxd5 31. Qxd5 b6 32. a3 e4 33. Qxe4 Be5
34. Qa8+ Kc7 35. Qxa7+ Kc6 36. Ne7+ Kd6 37. Nd5 Qd8 38. Qh7 Kc6 39. Qg6+ Bd6
40. Qxh6 Qe8 41. Qg6 Qe1+ 42. Ka2 Qc1 43. Qe8+ Kb7 44. Qd7+ Ka6 45. Qa4+ Kb7
46. h6 Be5 47. Qb3 Kc6 48. Qxb6+ Kd7 49. h7 Bh8 50. Qb3 Ke6 51. Nxf4+ Kf6 52.
Nd5+ Kg7 53. Qb7+ Kh6 54. Ne7 Qxc4+ 55. Qb3 Qe2 56. Qf7 *
Position (FEN): 7b/4NQ1P/7k/2p5/6P1/P4P2/KP2q3/8 b - - 3 56
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 712
Best move: Qxb2#