Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 d5 3. cxd5 Nxd5 4. e4 Nf6 5. Nc3 Bg4 6. Qb3 Qc8 7. Be3 e6 8. f3
Bh5 9. O-O-O Be7 10. g4 Bg6 11. h4 h5 12. g5 Nh7 13. Bd3 O-O 14. f4 f6 15. d5
exd5 16. Nxd5 Bd6 17. Ne7+ Kh8 18. Nxc8 Bf7 19. Bc4 Bxc4 20. Qxc4 Rxc8 21. g6
Nf8 22. Qd5 Nc6 23. Qxh5+ Kg8 24. Qh7+ Nxh7 25. gxh7+ Kxh7 26. Nf3 Nb4 27. a3
Nc6 28. h5 Re8 29. Nh4 Rxe4 30. Nf5 Bxf4 31. Bxf4 Rxf4 32. Ng3 Rd8 33. Rxd8
Nxd8 34. Rd1 Ne6 35. Rd7 Rc4+ 36. Kb1 Rd4 37. Re7 Rc4 38. Nf5 Ng5 39. Rxg7+ Kh8
40. h6 Rc5 41. Ne7 Ne6 *
Position (FEN): 7k/ppp1N1R1/4np1P/2r5/8/P7/1P6/1K6 w - - 3 42
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1413
Best move: Ng6#