Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. O-O Ngf6 6. Qe2 e6 7. d3 Be7 8.
b3 O-O 9. Bb2 Rc8 10. Nbd2 a6 11. c4 b5 12. Rad1 e5 13. Ne1 Re8 14. f4 Qb6 15.
Kh1 bxc4 16. Nxc4 Qc7 17. fxe5 Nxe5 18. Nf3 Bf8 19. Nfxe5 dxe5 20. Rf5 Nd7 21.
Rdf1 f6 22. Ne3 Bd6 23. Nd5 Qd8 24. Qg4 Re6 25. Rh5 Nf8 26. Rf3 Rb8 27. Rfh3
Rb7 28. Rxh7 Nxh7 29. Qxe6+ Kh8 30. Qf5 Qg8 31. Ne3 g6 32. Qxf6+ Rg7 33. Nd5
Qf7 34. Qxf7 Rxf7 35. Rf3 Rxf3 36. gxf3 Kg7 37. Ne3 Ng5 38. Kg2 Ne6 39. Ng4
Nf4+ 40. Kg3 Nxd3 41. Ba1 g5 42. h4 gxh4+ 43. Kxh4 Be7+ 44. Kh5 *
Position (FEN): 8/4b1k1/p7/2p1p2K/4P1N1/1P1n1P2/P7/B7 b - - 2 44
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 598
Best move: Nf4#