Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. Nb5 Qb6 6. Bc4 c6 7. Nc3 Bf5 8.
d3 e6 9. O-O Bd6 10. Ne2 O-O 11. Ng3 Bg6 12. Be3 Qc7 13. Nh4 Nbd7 14. Nxg6 hxg6
15. a3 Rad8 16. Re1 Bf4 17. Qf3 Bxe3 18. Qxe3 b5 19. Bb3 c5 20. c3 c4 21. dxc4
bxc4 22. Bc2 Nd5 23. Qg5 Rfe8 24. Ne4 N7f6 25. Qh4 Nxe4 26. Bxe4 Nf6 27. Rad1
Rxd1 28. Rxd1 Rd8 29. Bf3 Rxd1+ 30. Bxd1 Ne4 31. Qxe4 Kf8 32. Bf3 Qc5 33. Qa8+
Ke7 34. Qb7+ Kf6 35. g3 g5 36. h3 a5 37. Qe4 Qb5 38. h4 gxh4 39. Qxh4+ g5 40.
Qh6+ Ke7 41. Kg2 Qe5 42. Qh7 Kf6 43. Qe4 Qc7 44. Be2 Qb8 45. Qxc4 Qxb2 46. Qd4+
Ke7 47. Qc5+ Kf6 48. Bf3 a4 49. Qb4 Qc2 50. Qd4+ Ke7 51. c4 f6 52. c5 f5 53.
Qd6+ Kf6 54. c6 g4 55. c7 gxf3+ 56. Kxf3 *
Position (FEN): 8/2P5/3Qpk2/5p2/p7/P4KP1/2q2P2/8 b - - 0 56
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1261
Best move: Qe4#