Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8.
Be2 h6 9. Nf3 e4 10. Ng1 Bc5 11. c3 Nb7 12. b4 Bb6 13. Na3 O-O 14. Nc4 Bc7 15.
Bb2 Be6 16. h3 Qd5 17. Ne3 Qg5 18. Qc2 Bb6 19. g4 c5 20. a3 a5 21. b5 *
Position (FEN): r4rk1/1n3pp1/1b2bn1p/pPp3q1/4p1P1/P1P1N2P/1BQPBP2/R3K1NR b KQ - 0 21
Black to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 2211
Best move: c4