Chess puzzle (Checkmate)
Moves: 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3
Qd7 9. Nf3 Bg4 10. Be2 Bxf3 11. gxf3 O-O-O 12. Ne4 e6 13. c5 Nd5 14. Bf2 Nf4
15. Bb5 a6 16. Ba4 Qd5 17. Be3 Ng2+ 18. Kf2 Nxe3 19. Kxe3 Nxe5 20. dxe5 Bxc5+
21. Kf4 g5+ 22. Nxg5 Qc4+ 23. Ne4 Rxd1 24. Bxd1 f5 25. exf6 Bd6+ 26. Ke3 Bc5+
27. Kf4 Rf8 28. Kg3 Rg8+ 29. Kh3 Qd5 30. Ng3 Qg5 31. f7 Rf8 32. Bb3 Qh6+ 33.
Kg2 Rxf7 34. Rae1 Re7 35. Re4 Qd2+ 36. Re2 Qg5 37. Rhe1 e5 38. Re4 Bd4 39. Rg4
Qf6 40. Bc2 b6 41. Ne4 Qc6 42. Rc1 h5 43. Rg8+ Kb7 44. Ng5 Qf6 45. Be4+ c6 46.
Rxc6 Qxc6 47. Bxc6+ Kxc6 48. Rg6+ Kd5 49. Ne4 b5 50. b3 a5 *
Position (FEN): 8/4r3/6R1/pp1kp2p/3bN3/1P3P2/P5KP/8 w - - 0 51
White to move.
Themes:  Endgame Hook Mate, Mate in 1 
Puzzle rating: 919
Best move: Rd6#