Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nc3 e6 3. Bf4 a6 4. a3 Nf6 5. h3 Bd6 6. Qc1 Bxf4 7. Qxf4 O-O 8. b4
b5 9. e3 Nbd7 10. Bxb5 *
Position (FEN): r1bq1rk1/2pn1ppp/p3pn2/1B1p4/1P1P1Q2/P1N1P2P/2P2PP1/R3K1NR b KQ - 0 10
Black to move.
Themes:  Middlegame  
Puzzle rating: 1489
Best move: axb5