Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Nb3 O-O 8.
Be2 d6 9. h3 e5 10. Qd2 Be6 11. Bh6 a6 12. Bxg7 Kxg7 13. f3 Qc7 14. Nd5 Qd8 15.
Nxf6 Kxf6 16. h4 h5 17. Qg5+ Kg7 18. Qe3 Qc7 19. O-O-O Rac8 20. Rd2 Nb4 21. Bd1
Nxa2+ 22. Kb1 Bxb3 *
Position (FEN): 2r2r2/1pq2pk1/p2p2p1/4p2p/4P2P/1b2QP2/nPPR2P1/1K1B3R w - - 0 23
White to move.
Themes:  Middlegame  
Puzzle rating: 1428
Best move: Qxb3