Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. c3 d5 3. exd5 Nf6 4. Nf3 Nxd5 5. d4 e6 6. Bb5+ Bd7 7. Qe2 Nc6 8.
O-O Be7 9. Nbd2 O-O 10. dxc5 Bxc5 11. Bd3 h6 12. Ne4 Be7 13. Bc2 f5 14. Ng3 Bf6
15. Nh5 Qc7 16. Nxf6+ Rxf6 17. Be3 Nxe3 18. Qxe3 e5 19. Rad1 e4 20. Nd4 Nxd4
21. Rxd4 Bc6 22. Rfd1 f4 23. Qh3 f3 24. Bxe4 fxg2 25. Bxc6 Qxc6 26. Rd8+ Rxd8
27. Rxd8+ Kf7 28. Qd7+ Kg6 29. Qg4+ Kh7 30. Rd7 Rg6 31. Qf5 Qb6 32. b3 Qa6 33.
a4 *
Position (FEN): 8/pp1R2pk/q5rp/5Q2/P7/1PP5/5PpP/6K1 b - - 0 33
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 440
Best move: Qf1#