Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 h6 5. Nc3 a6 6. h3 Nge7 7. O-O Ng6 8. Nd5
Nce7 9. d4 exd4 10. Nxd4 c6 11. Nxe7 Nxe7 12. Nf5 Nxf5 13. exf5 O-O 14. Re1 d5
15. Bd3 Qf6 16. Qf3 Bd7 17. Be3 Bxe3 18. Rxe3 Qxb2 19. Rae1 Rfe8 20. a3 Qxa3
21. f6 Rxe3 22. Rxe3 Qc1+ 23. Kh2 gxf6 24. Qxf6 Re8 25. Bh7+ Kxh7 26. Qxf7+ Kh8
27. Rxe8+ Bxe8 28. Qxe8+ Kg7 29. Qe7+ Kg6 30. Qe6+ Kg7 31. Qe7+ Kg6 32. Qe8+
Kf6 33. Qf8+ Ke6 34. Qc8+ Kd6 35. Qxb7 Qf4+ 36. Kg1 Qc4 37. Qb8+ Kc5 38. Qa7+
Kb4 39. Qe7+ Ka4 40. Qh7 Qf4 41. Qd3 a5 *
Position (FEN): 8/8/2p4p/p2p4/k4q2/3Q3P/2P2PP1/6K1 w - - 0 42
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 937
Best move: Qb3#