Chess puzzle (Crushing)
Opening: Sicilian_Defense, Sicilian_Defense_Old_Sicilian
Moves: 1. e4 c5 2. Nf3 Nc6 3. c3 e6 4. d3 d5 5. exd5 exd5 6. Be2 Be7 7. O-O Nf6 8. h3
O-O 9. Nh2 a6 10. Ng4 Bxg4 11. Bxg4 Ne5 12. f4 Nexg4 13. Qxg4 *
Position (FEN): r2q1rk1/1p2bppp/p4n2/2pp4/5PQ1/2PP3P/PP4P1/RNB2RK1 b - - 0 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 616
Best move: Nxg4