Chess puzzle (Checkmate)
Moves: 1. Nf3 e6 2. c4 d5 3. cxd5 exd5 4. d4 Nf6 5. Nc3 c5 6. dxc5 Bxc5 7. Bg5 O-O 8.
Nxd5 Ne4 9. Bxd8 *
Position (FEN): rnbB1rk1/pp3ppp/8/2bN4/4n3/5N2/PP2PPPP/R2QKB1R b KQ - 0 9
Black to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 1477
Best move: Bxf2#