Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Steinitz_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 Nf6 6. d3 Be7 7. Be3 O-O 8. Bc4
h6 9. d4 Na5 10. Bd3 exd4 11. Nxd4 c5 12. Nf5 Nc6 13. Bxh6 gxh6 14. Nxh6+ Kh7
15. e5+ Kg7 16. exf6+ Bxf6 17. Ng4 Bg5 18. Qf3 Bxg4 *
Position (FEN): r2q1r2/pp3pk1/2np4/2p3b1/6b1/2PB1Q2/PP3PPP/RN3RK1 w - - 0 19
White to move.
Themes:  Middlegame  
Puzzle rating: 961
Best move: Qxg4