Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Albin_Countergambit
Moves: 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. a3 Nge7 6. b4 Ng6 7. Bb2 Ngxe5 8.
Nxe5 Nxe5 9. Qxd4 Qxd4 10. Bxd4 Nxc4 11. e3 Nd6 12. Bd3 Be6 13. Nd2 O-O-O 14.
Bxa7 *
Position (FEN): 2kr1b1r/Bpp2ppp/3nb3/8/1P6/P2BP3/3N1PPP/R3K2R b KQ - 0 14
Black to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 1549
Best move: b6