Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_French_Variation
Moves: 1. e4 e6 2. Nf3 c5 3. Bc4 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. f3 Bc5 8.
Qe2 Qb6 9. Nc3 Qa5 10. Bd2 Rb8 11. Bb3 Ba6 12. Qd1 Qb6 13. Na4 *
Position (FEN): 1r2k2r/p2p1ppp/bqp1pn2/2b5/N3P3/1B3P2/PPPB2PP/R2QK2R b KQk - 12 13
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1197
Best move: Bf2#