Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. a4 b6 8. O-O
Bb7 9. Re1 d6 10. Nb3 Nbd7 11. Bf4 Be7 12. Qd2 Rc8 13. Rad1 Nc5 14. Nxc5 Qxc5
15. e5 dxe5 16. Rxe5 Qc6 17. Ne4 Nd7 18. Bb5 axb5 19. axb5 Nxe5 *
Position (FEN): 2r1k2r/1b2bppp/1pq1p3/1P2n3/4NB2/8/1PPQ1PPP/3R2K1 w k - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1916
Best move: bxc6