Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 b6 3. c3 Bb7 4. d3 Nc6 5. Bg5 f6 6. Bh4 g5 7. Bg3 h5 8. h3 Nh6
9. Nh2 Rg8 10. Qxh5+ Ke7 11. Qf3 Bg7 12. Ng4 Nf7 13. h4 d6 14. h5 Qd7 15. h6
Bh8 16. Nd2 Rg6 17. h7 Bg7 18. Ne3 Rh8 19. Nd5+ Kd8 20. O-O-O Nh6 21. Qe2 Rxh7
22. f3 Bf8 23. Be1 g4 24. fxg4 Nxg4 25. Rxh7 Qxh7 26. Kb1 Ba6 27. c4 *
Position (FEN): 3k1b2/p1p4q/bpnp1pr1/3Np3/2P1P1n1/3P4/PP1NQ1P1/1K1RBB2 b - - 0 27
Black to move.
Themes:  Middlegame  
Puzzle rating: 976
Best move: Nd4