Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Hyperaccelerated_Dragon
Moves: 1. e4 c5 2. Nf3 g6 3. c3 d5 4. Bb5+ Nc6 5. Bxc6+ bxc6 6. e5 c4 7. O-O Bf5 8.
Re1 c5 9. d4 cxd3 10. Bf4 e6 11. Nbd2 h6 12. h3 g5 13. Be3 Rc8 14. Qa4+ Qd7 15.
Qa6 Ne7 16. Rac1 Nc6 17. b4 cxb4 *
Position (FEN): 2r1kb1r/p2q1p2/Q1n1p2p/3pPbp1/1p6/2PpBN1P/P2N1PP1/2R1R1K1 w k - 0 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1355
Best move: cxb4