Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. d4 cxd4 7. Nxd4 Nf6
8. Nc3 g6 9. Be3 Ng4 10. Bg5 Bg7 11. Nxc6 bxc6 12. O-O Rb8 13. h3 Ne5 14. Qe2
Qe6 15. f4 Nxc4 16. f5 gxf5 17. exf5 Qxe2 18. Nxe2 Rxb2 19. Nf4 Ne3 20. Rfe1
Nc2 21. Rxe7+ Kf8 22. Rd1 h6 23. Bh4 Be5 24. Rxe5 dxe5 25. Rd8+ Kg7 26. Nh5+
Kh7 27. Rd7 Rf8 28. Be7 Rbb8 29. Bxf8 Rxf8 30. Rxa7 Nd4 31. Rc7 Nxf5 32. Rxc6
Nd4 33. Rc7 Kg6 34. g4 f5 *
Position (FEN): 5r2/2R5/6kp/4pp1N/3n2P1/7P/P7/6K1 w - - 0 35
White to move.
Themes:  Endgame Hook Mate, Mate in 1 
Puzzle rating: 871
Best move: Rg7#