Chess puzzle (Checkmate)
Opening: Russian_Game, Russian_Game_Stafford_Gambit
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. d3 Bc5 6. c3 Bb6 7. Bg5 Nxe4 8.
Bxd8 Bxf2+ 9. Ke2 *
Position (FEN): r1bBk2r/ppp2ppp/2p5/8/4n3/2PP4/PP2KbPP/RN1Q1B1R b kq - 1 9
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 979
Best move: Bg4#