Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. c3 e6 3. d4 d5 4. exd5 exd5 5. Nf3 Nc6 6. Bb5 Bd6 7. O-O Ne7 8. Re1
O-O 9. Bg5 f6 10. Bh4 Nf5 11. Bg3 Nxg3 12. hxg3 c4 13. Bxc6 bxc6 14. Nbd2 Rb8
15. b3 cxb3 16. Nxb3 Bf5 17. Nh4 Bd7 18. Qh5 Re8 19. Rab1 a5 20. Nc5 Bxc5 21.
dxc5 Be6 22. Rxb8 Qxb8 23. Nf5 g6 24. Nh6+ Kg7 25. Qh4 Bd7 26. Rxe8 Qxe8 27.
Ng4 Qe7 28. Qh6+ Kg8 29. Qf4 Bxg4 30. Qxg4 Qxc5 31. Qe6+ Kg7 32. Qd7+ Kg8 33.
Qe6+ Kg7 34. Qd7+ Kf8 35. Qxh7 Qxc3 36. Qxg6 Qd4 37. Qh6+ Ke7 38. Qg7+ Kd6 39.
Qf8+ Kc7 40. Qe7+ Kb6 41. Qd8+ Kb5 42. Qb8+ Ka4 *
Position (FEN): 1Q6/8/2p2p2/p2p4/k2q4/6P1/P4PP1/6K1 w - - 13 43
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 788
Best move: Qb3#