Chess puzzle (Advantage)
Opening: Slav_Defense, Slav_Defense_Other_variations
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 b6 5. Bxf6 exf6 6. cxd5 cxd5 7. e4 Bb4 *
Position (FEN): rnbqk2r/p4ppp/1p3p2/3p4/1b1PP3/2N5/PP3PPP/R2QKBNR w KQkq - 1 8
White to move.
Themes:  Opening  
Puzzle rating: 1184
Best move: Qa4+