Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. Re1 Bg4 6. h3 Bh5 7. c3 Be7 8. d4
exd4 9. cxd4 O-O 10. Bxc6 bxc6 11. Nc3 h6 12. Bf4 Nh7 13. g4 Bg6 14. Rc1 h5 15.
e5 hxg4 16. hxg4 Bg5 17. Qd2 Rb8 18. b3 Rb4 19. Ne4 Bxf4 20. Qxf4 dxe5 21. dxe5
Qd7 22. Nf6+ Nxf6 23. Qxb4 Nd5 24. Qc4 Re8 25. Nh4 Bh7 26. f3 Nb6 27. Qxc6 Qd4+
28. Kg2 Re6 29. Qxc7 Bd3 30. Qc3 Qd8 31. Rcd1 Bf1+ 32. Kg3 Nd5 33. Rxf1 Qxh4+
34. Kxh4 Nxc3 35. Rd8+ Kh7 36. f4 Ne2 37. Rd7 Rh6+ 38. Kg5 Rg6+ 39. Kf5 *
Position (FEN): 8/p2R1ppk/6r1/4PK2/5PP1/1P6/P3n3/5R2 b - - 6 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1123
Best move: Ng3#