Chess puzzle (Advantage)
Opening: Zukertort_Opening, Zukertort_Opening_Slav_Invitation
Moves: 1. Nf3 c6 2. d4 d5 3. g3 Bg4 4. Ne5 Nf6 5. Nxg4 Nxg4 6. f3 Nf6 7. Bh3 e6 8. e4
dxe4 9. fxe4 Be7 10. e5 Nd5 11. c4 Nb6 12. c5 Nd5 13. O-O Bg5 14. Nd2 Ne3 15.
Qf3 *
Position (FEN): rn1qk2r/pp3ppp/2p1p3/2P1P1b1/3P4/4nQPB/PP1N3P/R1B2RK1 b kq - 6 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 985
Best move: Nxf1