Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. f4 e6 3. Nf3 d5 4. exd5 exd5 5. Bb5+ Bd7 6. a4 Nf6 7. d3 Bd6 8. O-O
O-O 9. Nc3 Qc7 10. Ne5 Bxe5 11. fxe5 Qxe5 12. Bf4 Qd4+ 13. Kh1 Nc6 14. Bd6 Bg4
15. Qd2 Rfe8 16. Rf4 Qe3 17. Qxe3 Rxe3 18. Bxc5 Re5 19. h3 Be6 20. Raf1 Nh5 21.
Bxc6 Nxf4 22. Bxb7 Rb8 23. Bd6 Rxb7 24. Bxe5 Ng6 25. Bd4 Rxb2 26. Bxa7 Rxc2 27.
Bd4 Nh4 28. a5 Bc8 29. Nxd5 Kf8 30. Rb1 f6 31. Rb8 Kf7 32. Nb6 Bxh3 33. gxh3
Nf3 34. Rb7+ Kg6 35. Bg1 Nh4 36. a6 Nf5 37. a7 *
Position (FEN): 8/PR4pp/1N3pk1/5n2/8/3P3P/2r5/6BK b - - 0 37
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 821
Best move: Ng3#