Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nf3 Nc6 3. e3 e6 4. Be2 Bd6 5. O-O Nf6 6. Nbd2 O-O 7. c3 Bd7 8. b3
Qe7 9. a3 a6 10. c4 dxc4 11. bxc4 b5 12. cxb5 axb5 13. Bxb5 Ra7 14. a4 Rfa8 15.
Nc4 Ng4 16. h3 Nf6 17. Nfe5 Nxe5 18. Nxe5 *
Position (FEN): r5k1/r1pbqppp/3bpn2/1B2N3/P2P4/4P2P/5PP1/R1BQ1RK1 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1158
Best move: Bxb5