Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Italian_Variation
Moves: 1. e4 e5 2. Bc4 Nf6 3. Nf3 Nxe4 4. Nxe5 Qf6 5. Qf3 Nd6 6. Qxf6 *
Position (FEN): rnb1kb1r/pppp1ppp/3n1Q2/4N3/2B5/8/PPPP1PPP/RNB1K2R b KQkq - 0 6
Black to move.
Themes:  Opening  
Puzzle rating: 1167
Best move: gxf6