Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. O-O Bc5 6. d3 Ne7 7. Bg5 h6 8.
Bh4 g5 9. Bg3 a6 10. Ba4 Nc6 11. Nd2 d6 12. f4 g4 13. e5 Bd7 14. Ne4 dxe5 15.
Nxc5 h5 16. fxe5 Qe7 17. Nxd7 Qxd7 18. h3 O-O-O 19. Rf4 gxh3 20. gxh3 Qd5 21.
Qf3 Qe6 22. Bh2 Rdg8+ 23. Kh1 Nxe5 24. Bb3 Qh6 25. Qe4 Re8 26. Qf5+ Kb8 27.
Rxd4 Ng4 28. Rxg4 hxg4 29. Qxg4 Rhg8 30. Qd7 Qe3 31. Qxc7+ Ka8 32. Bd5 Qa7 33.
Rf1 Rc8 34. Qxf7 Rgd8 35. Rf6 Rxc2 36. Qxb7+ Qxb7 *
Position (FEN): k2r4/1q6/p4R2/3B4/8/3P3P/PPr4B/7K w - - 0 37
White to move.
Themes: Pin Endgame Mate in 1 
Puzzle rating: 1311
Best move: Rxa6#