Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Morphy_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. O-O d6 6. c3 Nf6 7. d4 exd4 8. cxd4
Ba7 9. Bg5 b5 10. Bb3 h6 11. Bh4 g5 12. Nxg5 *
Position (FEN): r1bqk2r/b1p2p2/p1np1n1p/1p4N1/3PP2B/1B6/PP3PPP/RN1Q1RK1 b kq - 0 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 1167
Best move: hxg5