Chess puzzle (Advantage)
Opening: Nimzo-Indian_Defense, Nimzo-Indian_Defense_Samisch_Variation
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. Bg5 O-O 7. e3 cxd4 8.
cxd4 *
Position (FEN): rnbq1rk1/pp1p1ppp/4pn2/6B1/2PP4/P3P3/5PPP/R2QKBNR b KQ - 0 8
Black to move.
Themes:  Opening  
Puzzle rating: 659
Best move: Qa5+