Chess puzzle (Advantage)
Opening: Anderssens_Opening, Anderssens_Opening_Other_variations
Moves: 1. a3 Nf6 2. b4 e6 3. Bb2 d5 4. e3 c5 5. bxc5 Bxc5 6. d4 Bb6 7. Nf3 Bd7 8. c4
dxc4 9. Bxc4 Qc7 10. Nbd2 Nc6 11. O-O Na5 12. Ba2 O-O 13. Rc1 Qd6 14. e4 Qf4
15. Re1 Bc6 16. Bb1 Rfd8 17. e5 Ng4 18. h3 Bxf3 *
Position (FEN): r2r2k1/pp3ppp/1b2p3/n3P3/3P1qn1/P4b1P/1B1N1PP1/1BRQR1K1 w - - 0 19
White to move.
Themes:  Middlegame  
Puzzle rating: 1494
Best move: Nxf3