Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. g3 a6 5. Bg2 dxc4 6. Ne5 Nd5 7. Nxc4 Bb4+ 8.
Bd2 Bxd2+ 9. Qxd2 O-O 10. Nc3 b5 11. Nxd5 exd5 12. Ne5 c6 13. Rc1 Bb7 14. O-O
f6 15. Nd3 Nd7 16. b4 Nb6 17. a3 Nc4 18. Qa2 a5 19. bxa5 Rxa5 20. Rc3 Qe7 21.
Nc5 Rfa8 22. a4 Rxa4 23. Nxa4 Rxa4 24. Qb3 Nd2 25. Qb2 Nxf1 26. Bxf1 Qe4 27. e3
Qe8 28. Bd3 Qa8 29. Bc2 Ra2 30. Qb4 Ra1+ 31. Kg2 Qc8 32. Qb2 Qa8 33. Qb4 Qa2
34. Qe7 Qa8 35. e4 b4 36. Qxb4 Ba6 37. exd5 Bf1+ 38. Kf3 Qe8 39. Re3 Qh5+ 40.
g4 Qh3+ 41. Kf4 Qxh2+ 42. Kf3 Qg2+ 43. Kf4 g5+ 44. Kf5 Qxf2+ 45. Ke6 Qxe3+ 46.
Kxf6 Qf4+ 47. Bf5 Ra8 48. Qb7 Rf8+ 49. Ke6 Qxd4 *
Position (FEN): 5rk1/1Q5p/2p1K3/3P1Bp1/3q2P1/8/8/5b2 w - - 0 50
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 845
Best move: Qxh7#