Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 d6 4. Bc4 Be6 5. Nd5 c6 6. Nxf6+ Qxf6 7. Bxe6 Qxe6
8. d3 Be7 9. O-O O-O 10. Re1 Bf6 11. c3 d5 12. exd5 cxd5 13. c4 d4 14. Nxd4 Qb6
15. Nf3 Nc6 16. a3 Rfe8 17. b4 a6 18. Bb2 e4 19. Bxf6 exf3 20. Bh4 *
Position (FEN): r3r1k1/1p3ppp/pqn5/8/1PP4B/P2P1p2/5PPP/R2QR1K1 b - - 1 20
Black to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 1735
Best move: Nd4