Chess puzzle (Advantage)
Opening: Benko_Gambit, Benko_Gambit_Other_variations
Moves: 1. d4 c5 2. d5 Nf6 3. c4 b5 4. cxb5 e6 5. Bg5 exd5 6. Bxf6 Qxf6 7. Qxd5 *
Position (FEN): rnb1kb1r/p2p1ppp/5q2/1PpQ4/8/8/PP2PPPP/RN2KBNR b KQkq - 0 7
Black to move.
Themes:  Opening  
Puzzle rating: 1217
Best move: Qxb2