Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Morphy_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. c3 Bc5 6. b4 b5 7. Bb3 Bb6 8. d3 h6
9. Nbd2 d6 10. Nf1 Bg4 11. Ne3 O-O 12. h3 Bh5 13. g4 Bg6 14. Nh4 Nxe4 15. Nxg6
Nxc3 16. Qc2 Bd4 17. Bb2 Nxb4 18. Qxc3 *
Position (FEN): r2q1rk1/2p2pp1/p2p2Np/1p2p3/1n1b2P1/1BQPN2P/PB3P2/R3K2R b KQ - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 942
Best move: Bxc3+