Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4
c6 9. cxd5 cxd5 10. Nc3 Bf5 11. Re1 Re8 12. Qc2 Nc6 13. Nxe4 dxe4 14. Bxe4 Bxe4
15. Rxe4 Rc8 16. Rxe8+ Qxe8 17. Qb3 Nxd4 18. Qxb7 Ne2+ 19. Kf1 Nxc1 20. h3 Nd3
21. Qd5 Nf4 22. Qxd6 Qe2+ 23. Kg1 Nxh3+ 24. gxh3 Qxf3 25. Qg3 Qf6 26. Re1 h6
27. Qe5 Qf3 28. Qe3 Qh5 29. Kh2 Qd5 30. Qe4 Qxe4 31. Rxe4 Rc2 32. Rb4 Rxf2+ 33.
Kg3 Rd2 34. a4 f5 35. Kf4 Rf2+ 36. Ke5 g5 37. Kf6 Kh7 38. Rb7+ Kg8 39. Kg6 g4 *
Position (FEN): 6k1/pR6/6Kp/5p2/P5p1/7P/1P3r2/8 w - - 0 40
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1197
Best move: Rb8#