Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. O-O Ngf6 6. Re1 e6 7. d4 cxd4
8. Nxd4 a6 9. c3 Be7 10. f3 O-O 11. Be3 b5 12. a4 bxa4 13. Nc6 Qe8 14. Nxe7+
Qxe7 15. Qxa4 Rfb8 16. b3 Ne5 17. Rd1 h6 18. c4 Qb7 19. Nd2 Nd3 20. Rab1 Nb4
21. Nf1 d5 22. cxd5 exd5 23. e5 Nd7 24. f4 a5 25. Ng3 Nb6 26. Qb5 Qc7 27. Qc5
Qd7 28. Qd6 Qxd6 29. exd6 Nd7 30. Rdc1 Ra6 31. Nf5 g6 32. Nxh6+ Kg7 33. Ng4
Rxd6 34. Bd4+ Kh7 35. Rc7 Rd8 36. Nf6+ Nxf6 37. Rxf7+ Kh6 38. Bxf6 R8d7 39.
Bg5+ Kh5 40. h3 Rxf7 *
Position (FEN): 8/5r2/3r2p1/p2p2Bk/1n3P2/1P5P/6P1/1R4K1 w - - 0 41
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 853
Best move: g4#