Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 h6 6. O-O d6 7. Bb3 O-O 8. Re1
a5 9. h3 Be6 10. Bc2 d5 11. exd5 Nxd5 12. Nbd2 Bd6 13. Nc4 Qf6 14. d4 Nxc3 15.
Qd3 e4 16. Qxc3 exf3 17. Nxd6 cxd6 18. Qd3 g6 19. Bxh6 Bf5 20. Qxf3 *
Position (FEN): r4rk1/1p3p2/2np1qpB/p4b2/3P4/5Q1P/PPB2PP1/R3R1K1 b - - 0 20
Black to move.
Themes:  Middlegame  
Puzzle rating: 1242
Best move: Nxd4