Chess puzzle (Checkmate)
Moves: 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. a4 b6 6. Qd2 Bb7 7. f3 Nd7 8. Bc4
Ngf6 9. Nge2 O-O 10. Bh6 e5 11. Bxg7 Kxg7 12. O-O Qe7 13. d5 Nh5 14. Nd1 Bc8
15. Ne3 Rb8 16. Kh1 f5 17. exf5 gxf5 18. f4 Kh8 19. Qe1 b5 20. axb5 axb5 21.
Bb3 Nc5 22. fxe5 Nxb3 23. cxb3 Qxe5 24. Qc3 b4 25. Qxe5+ dxe5 26. g4 Ng7 27.
gxf5 Nxf5 28. Ra7 Bd7 29. Rxc7 Rbd8 30. Nxf5 Bxf5 31. Kg1 Rxd5 32. Ng3 e4 33.
Re7 Rg8 34. Kf2 Bg6 35. Nxe4 Rf8+ 36. Ke1 Rc8 37. Rf6 Rc1+ 38. Kf2 Rc2+ 39. Ke3
Rxb2 *
Position (FEN): 7k/4R2p/5Rb1/3r4/1p2N3/1P2K3/1r5P/8 w - - 0 40
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 814
Best move: Rf8#