Chess puzzle (Equality)
Moves: 1. Nf3 Nf6 2. g3 d5 3. d4 Bf5 4. c4 dxc4 5. Qa4+ c6 6. Qxc4 e6 7. Bg2 Nbd7 8.
O-O Bd6 9. Bg5 Qb6 10. Nc3 O-O 11. a4 Qxb2 12. Nh4 Qb4 *
Position (FEN): r4rk1/pp1n1ppp/2pbpn2/5bB1/PqQP3N/2N3P1/4PPBP/R4RK1 w - - 2 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1442
Best move: Qxb4