Chess puzzle (Advantage)
Opening: Vienna_Game, Vienna_Game_Stanley_Variation
Moves: 1. e4 e5 2. Bc4 Nc6 3. Nc3 Bc5 4. Qg4 Qf6 5. Nd5 Qxf2+ 6. Kd1 d6 *
Position (FEN): r1b1k1nr/ppp2ppp/2np4/2bNp3/2B1P1Q1/8/PPPP1qPP/R1BK2NR w kq - 0 7
White to move.
Themes:  Opening  
Puzzle rating: 1890
Best move: Qxg7