Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bb5 a6 5. Bxc6 dxc6 6. b3 Bg4 7. h3 Bh5 8. g4
Bg6 9. O-O h5 10. g5 f6 11. d3 fxg5 12. Bxg5 Qd7 13. Nxe5 Qxh3 14. Nxg6 Rh7 15.
Nf4 Qg4+ 16. Qxg4 hxg4 17. Rad1 Ne7 18. d4 Bb6 19. d5 g3 20. dxc6 Nxc6 21. Ncd5
Bxf2+ 22. Rxf2 gxf2+ 23. Kxf2 Rc8 24. Ne6 g6 25. Ndxc7+ Rcxc7 26. Nxc7+ Rxc7
27. c4 Ne5 28. Rd5 Nf7 29. e5 Nxg5 30. c5 Ne4+ 31. Ke3 Nc3 32. Rd6 Rxc5 33.
Rxg6 Nxa2 34. e6 Ke7 35. Kd4 Rc6 36. Kd5 Rd6+ 37. Ke5 Rd1 38. Rg7+ Ke8 39. e7
Nb4 40. Ke6 Nc6 *
Position (FEN): 4k3/1p2P1R1/p1n1K3/8/8/1P6/8/3r4 w - - 3 41
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 852
Best move: Rg8#