Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Veresov_Attack
Moves: 1. d4 d5 2. Nf3 e6 3. Nc3 Nf6 4. Bg5 c6 5. e3 Bd6 6. Bd3 Nbd7 7. O-O e5 8. dxe5
Nxe5 9. Nxe5 Bxe5 10. h3 Bxc3 11. bxc3 Qd6 12. Bf4 Qe7 13. c4 O-O 14. cxd5 Nxd5
15. Bg3 Qf6 16. c4 Nb4 17. Be2 Bf5 18. Qb3 a5 19. a3 *
Position (FEN): r4rk1/1p3ppp/2p2q2/p4b2/1nP5/PQ2P1BP/4BPP1/R4RK1 b - - 0 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1662
Best move: Bc2