Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Be2 Nf6 7. Bg5 Bb4 8. f4
Qa5 9. O-O Bxc3 10. bxc3 Nxe4 11. Bd3 Nxg5 12. fxg5 Qxg5 13. Qf3 O-O 14. Qh3
Qh6 15. Qxh6 gxh6 16. Rf6 Kg7 17. Raf1 Nxd4 18. cxd4 b5 19. R6f3 Bb7 20. Rg3+
Kh8 21. Rf6 Bd5 22. Rh3 Bc4 23. Bxc4 bxc4 24. Rfxh6 Rab8 25. Rxh7+ Kg8 26. R7h4
Rb2 *
Position (FEN): 5rk1/3p1p2/p3p3/8/2pP3R/7R/PrP3PP/6K1 w - - 3 27
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1468
Best move: Rg3#