Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nf3 Nc6 3. g3 Bg4 4. Bg2 Nf6 5. O-O h5 6. h4 g6 7. c4 Bh6 8. Nc3
Bxc1 9. Rxc1 dxc4 10. e3 Qd7 11. Kh2 O-O-O 12. b3 cxb3 *
Position (FEN): 2kr3r/pppqpp2/2n2np1/7p/3P2bP/1pN1PNP1/P4PBK/2RQ1R2 w - - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1830
Best move: Qxb3