Chess puzzle (Advantage)
Moves: 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Be7 5. Bg2 d6 6. O-O Be6 7. b3 O-O 8. Bb2
Rb8 9. d4 exd4 10. Nxd4 Nxd4 11. Qxd4 a6 12. e4 Nd7 13. Nd5 Nf6 14. f4 Bxd5 15.
cxd5 c5 16. Qc3 b5 17. g4 b4 18. Qh3 Qd7 19. Bf3 h5 20. f5 hxg4 21. Bxg4 Qb5
22. Rae1 c4 23. bxc4 Qxc4 24. Qb3 *
Position (FEN): 1r3rk1/4bpp1/p2p1n2/3P1P2/1pq1P1B1/1Q6/PB5P/4RRK1 b - - 1 24
Black to move.
Themes:  Middlegame  
Puzzle rating: 1045
Best move: Qxb3