Chess puzzle (Advantage)
Opening: Bishops_Opening, Bishops_Opening_Berlin_Defense
Moves: 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 d6 5. Ng5 O-O 6. Qf3 Bg4 7. Qg3 h6 8. Nh3
Kh7 9. f3 Bh5 10. Qh4 Nc6 11. c3 g6 12. g4 g5 *
Position (FEN): r2q1r2/ppp2p1k/2np1n1p/2b1p1pb/2B1P1PQ/2PP1P1N/PP5P/RNB1K2R w KQ - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1893
Best move: Nxg5+