Chess puzzle (Advantage)
Moves: 1. c4 Nf6 2. d4 g6 3. h4 h5 4. Nc3 Bg7 5. e4 d6 6. Bg5 Nc6 7. Qd2 e5 8. d5 Ne7
9. O-O-O O-O 10. f3 Kh7 11. Be2 c6 12. Kb1 b5 13. dxc6 Ne8 14. Nd5 f6 15. Be3
bxc4 16. g4 Nxc6 17. gxh5 gxh5 18. f4 Nc7 19. Bxh5 Nxd5 20. exd5 Bf5+ 21. Ka1
Na5 22. Ne2 Qc7 23. Rhg1 Rab8 24. Ng3 Bd3 25. Rc1 exf4 26. Qxd3+ *
Position (FEN): 1r3r2/p1q3bk/3p1p2/n2P3B/2p2p1P/3QB1N1/PP6/K1R3R1 b - - 0 26
Black to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 2237
Best move: f5