Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. e5 d5 3. d4 c5 4. c3 Qb6 5. Nf3 Nc6 6. a3 cxd4 7. cxd4 Be7 8. Nc3
f6 9. Bb5 a6 10. Bxc6+ bxc6 11. O-O Bd7 12. b4 a5 13. Na4 Qc7 14. Nc5 Bxc5 15.
bxc5 fxe5 16. Nxe5 Nf6 17. Bg5 O-O 18. Rb1 Ne4 19. Qc1 Rab8 20. Rxb8 Rxb8 21.
Bf4 Rb5 22. a4 Rb7 23. f3 Nf6 24. Nc4 Qd8 25. Nb6 Rxb6 26. cxb6 Qxb6 27. Be5
Qb4 28. Qa1 Qb3 29. Rb1 Qe3+ 30. Kh1 h5 31. Bxf6 gxf6 32. h3 Kf7 33. Rb7 Ke8
34. Qb2 h4 35. Qb1 Qf4 36. Qg6+ Kf8 37. Rb8+ Ke7 38. Qg7+ Kd6 39. Rb1 Qxd4 40.
Qf8+ Kc7 *
Position (FEN): 5Q2/2kb4/2p1pp2/p2p4/P2q3p/5P1P/6P1/1R5K w - - 2 41
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 837
Best move: Qb8#