Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Exchange_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nxe5 Qg5 6. Nc4 *
Position (FEN): r1b1kbnr/1pp2ppp/p1p5/6q1/2N1P3/8/PPPP1PPP/RNBQK2R b KQkq - 2 6
Black to move.
Themes:  Opening  
Puzzle rating: 1070
Best move: Qxg2