Chess puzzle (Advantage)
Opening: Benoni_Defense, Benoni_Defense_Old_Benoni
Moves: 1. d4 c5 2. c3 cxd4 3. cxd4 Nf6 4. Bg5 e6 5. e3 *
Position (FEN): rnbqkb1r/pp1p1ppp/4pn2/6B1/3P4/4P3/PP3PPP/RN1QKBNR b KQkq - 0 5
Black to move.
Themes:  Opening  
Puzzle rating: 1209
Best move: Qa5+