Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 e6 2. d4 c5 3. Nf3 a6 4. Nc3 cxd4 5. Nxd4 d5 6. exd5 exd5 7. Be2 Be7 8.
O-O Nf6 9. Re1 Be6 10. Nxe6 fxe6 11. Bg5 O-O 12. Bd3 Qb6 13. Bxf6 Bxf6 14. Qh5
g6 15. Bxg6 hxg6 16. Qxg6+ Bg7 17. Rxe6 Qxf2+ 18. Kh1 Qf1+ 19. Rxf1 *
Position (FEN): rn3rk1/1p4b1/p3R1Q1/3p4/8/2N5/PPP3PP/5R1K b - - 0 19
Black to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 818
Best move: Rxf1#