Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Other_variations
Moves: 1. d4 Nf6 2. e3 d5 3. a3 c5 4. c3 Nc6 5. Nf3 e6 6. c4 Be7 7. dxc5 Qa5+ 8. Qd2
Qxc5 9. cxd5 Nxd5 10. Be2 Bf6 11. O-O O-O 12. Bd3 Rd8 13. Qc2 Qb6 14. Bxh7+ Kf8
15. Be4 Bd7 16. Nbd2 Rac8 17. Qb3 Qc5 18. Rb1 Na5 19. Qd3 *
Position (FEN): 2rr1k2/pp1b1pp1/4pb2/n1qn4/4B3/P2QPN2/1P1N1PPP/1RB2RK1 b - - 10 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1366
Best move: Bb5