Chess puzzle (Advantage)
Opening: Zukertort_Opening, Zukertort_Opening_Dutch_Variation
Moves: 1. Nf3 f5 2. d3 Nf6 3. Nc3 d6 4. g3 e5 5. Bg2 Be7 6. e4 O-O 7. Be3 Nc6 8. exf5
Bxf5 9. O-O Qe8 10. Nh4 Be6 11. Nf3 Ng4 12. Bg5 Qh5 13. Bh4 *
Position (FEN): r4rk1/ppp1b1pp/2npb3/4p2q/6nB/2NP1NP1/PPP2PBP/R2Q1RK1 b - - 9 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 2257
Best move: g5