Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. c4 Nf6 3. Nc3 Bb4 4. Qf3 O-O 5. a3 Bxc3 6. Qxc3 Nxe4 7. Qf3 f5 8.
d3 Nd6 9. Bd2 e4 10. Qe2 Nc6 11. O-O-O Nd4 12. Qe3 c5 13. Bc3 f4 14. Qd2 Nb3+
15. Kc2 Nxd2 16. Rxd2 e3 17. fxe3 fxe3 18. Rd1 Nf5 19. Ne2 a6 20. g4 Nh6 21. h3
b5 22. Bg2 Rb8 23. Bd5+ Kh8 24. Rhg1 Bb7 25. g5 Nf5 26. Bxb7 Rxb7 27. Rdf1 b4
28. axb4 cxb4 29. Be5 d6 30. Bf4 b3+ 31. Kd1 Qa5 32. Nc3 Qa1+ 33. Ke2 Qxb2+ 34.
Kf3 Qxc3 35. g6 Nd4+ 36. Kxe3 Re7+ 37. Kf2 Rxf4+ 38. Kg2 Re2+ 39. Kh1 Rh4 *
Position (FEN): 7k/6pp/p2p2P1/8/2Pn3r/1pqP3P/4r3/5RRK w - - 4 40
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 457
Best move: Rf8#