Chess puzzle (Checkmate)
Moves: 1. f4 h6 2. Nf3 g5 3. fxg5 hxg5 4. Nxg5 e5 5. d4 Nc6 6. dxe5 Bc5 7. Qd5 Qe7 8.
Ne4 Nb4 9. Qxc5 Qxc5 10. Nxc5 Nxc2+ 11. Kd1 Nxa1 12. Nc3 d6 13. exd6 cxd6 14.
N5e4 Be6 15. Bf4 d5 16. Nc5 Ne7 17. e3 O-O 18. Bd3 Bf5 19. Kd2 Bxd3 20. Nxd3 d4
21. exd4 Nf5 22. Rxa1 Nxd4 23. Re1 Rfe8 24. Be5 Nc6 25. Bf6 Rxe1 26. Nxe1 Re8
27. Nd3 Re6 28. Bg5 Nd4 29. Be3 Nf5 30. Bf2 Nd6 31. b3 Rg6 32. Bg3 Nf5 33. Ne2
Rc6 34. Be5 f6 35. Bb2 Rc8 36. g4 Nd6 37. Nd4 Ne4+ 38. Ke3 Ng5 39. Nf5 Re8+ 40.
Kf4 Kf7 41. Kg3 Kg6 42. h4 Re3+ 43. Kf4 *
Position (FEN): 8/pp6/5pk1/5Nn1/5KPP/1P1Nr3/PB6/8 b - - 2 43
Black to move.
Themes:  Endgame Hook Mate, Mate in 1 
Puzzle rating: 1757
Best move: Rf3#