Chess puzzle (Checkmate)
Moves: 1. Nf3 c5 2. c4 g6 3. e3 Nf6 4. d4 Bg7 5. d5 O-O 6. Nc3 e6 7. Be2 exd5 8. cxd5
Re8 9. Nd2 d6 10. O-O b6 11. a4 a6 12. e4 Nbd7 13. Nc4 Qc7 14. Bf4 Ne5 15. Nxe5
dxe5 16. Be3 Rf8 17. Rc1 Ne8 18. b4 cxb4 19. Na2 Qb7 20. Nxb4 Bd7 21. Nc6 Nd6
22. f3 Kh8 23. Qb3 b5 24. a5 f5 25. Qb4 Nc8 26. Nxe5 Re8 27. Nf7+ Kg8 28. Nh6+
Kh8 29. Bd3 Ne7 30. Bd4 Rf8 31. Bxg7+ Kxg7 32. Qxe7+ Kxh6 33. Kh1 Rae8 34. Qd6
fxe4 35. Rc7 Qb8 36. Qxd7 exd3 37. Qxh7+ Kg5 38. h4+ Kf6 39. Qg7+ Kf5 40. Qd4
Qxc7 *
Position (FEN): 4rr2/2q5/p5p1/Pp1P1k2/3Q3P/3p1P2/6P1/5R1K w - - 0 41
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1652
Best move: g4#