Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Exchange_Variation
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 e5 7. d5 c6 8. c4
cxd5 9. cxd5 Bb4+ 10. Bd2 Qa5 11. Bxb4 *
Position (FEN): rnb1k2r/pp3ppp/8/q2Pp3/1B2P3/8/P4PPP/R2QKBNR b KQkq - 0 11
Black to move.
Themes:  Opening  
Puzzle rating: 522
Best move: Qxb4+