Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Exchange_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. Nxe5 Qg5 6. Ng4 h5 7. d3 *
Position (FEN): r1b1kbnr/2pp1pp1/p1p5/6qp/4P1N1/3P4/PPP2PPP/RNBQK2R b KQkq - 0 7
Black to move.
Themes:  Opening  
Puzzle rating: 1159
Best move: Qxg4