Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Bird_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. d3 c6 6. Ba4 Qa5+ 7. Bd2 *
Position (FEN): r1b1kbnr/pp1p1ppp/2p5/q7/B2pP3/3P4/PPPB1PPP/RN1QK2R b KQkq - 3 7
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1055
Best move: Qxa4