Chess puzzle (Checkmate)
Opening: Russian_Game, Russian_Game_Italian_Variation
Moves: 1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. Nxe5 d5 5. Bb3 Qg5 6. d4 Qxg2 7. Rf1 Bh3 8.
Ke2 f6 9. Nf3 Bg4 10. Ke3 g6 11. Bxd5 Bh6+ 12. Kxe4 *
Position (FEN): rn2k2r/ppp4p/5ppb/3B4/3PK1b1/5N2/PPP2PqP/RNBQ1R2 b kq - 0 12
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 1952
Best move: Bf5#