Chess puzzle (Checkmate)
Opening: Latvian_Gambit, Latvian_Gambit_Other_variations
Moves: 1. e4 e5 2. Nf3 f5 3. Nxe5 Nf6 4. Bc4 d5 5. exd5 Bd6 6. d4 O-O 7. O-O f4 8.
Bxf4 Ne8 9. Nc3 Rxf4 10. Nb5 Bxe5 11. d6+ Kh8 12. g3 Qg5 13. dxe5 Rxc4 14. f4
Qg6 15. b3 Rxc2 16. f5 Bxf5 17. Qxc2 Bxc2 *
Position (FEN): rn2n2k/ppp3pp/3P2q1/1N2P3/8/1P4P1/P1b4P/R4RK1 w - - 0 18
White to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 600
Best move: Rf8#