Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Stafford_Gambit
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. Nc3 Bc5 6. Bc4 Qd4 7. O-O *
Position (FEN): r1b1k2r/ppp2ppp/2p2n2/2b5/2BqP3/2N5/PPPP1PPP/R1BQ1RK1 b kq - 5 7
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1878
Best move: Qxc4