Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Other_variations
Moves: 1. e4 c6 2. Nc3 d5 3. f4 g6 4. Nf3 Bg7 5. Be2 Nf6 6. e5 Ne4 7. O-O Nxc3 8. dxc3
Bf5 9. Bd3 Bxd3 10. Qxd3 O-O 11. f5 f6 12. fxg6 hxg6 13. Qxg6 fxe5 14. Ng5 Qb6+
15. Kh1 *
Position (FEN): rn3rk1/pp2p1b1/1qp3Q1/3pp1N1/8/2P5/PPP3PP/R1B2R1K b - - 3 15
Black to move.
Themes: Hanging Piece Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 743
Best move: Rxf1#