Chess puzzle (Equality)
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. Bf4 Nc6 6. c3 g6 7. Nf3 Bg7 8. O-O
O-O 9. Nbd2 Bf5 10. Bxf5 gxf5 11. Ne5 e6 12. Ndf3 Ne4 13. Qc1 Rc8 14. Bh6 Qf6
15. Bxg7 Qxg7 16. Nxc6 bxc6 17. Ne5 Kh8 18. f3 Rg8 19. Qc2 Nf6 20. Rf2 Nh5 21.
Nd3 Nf6 22. Qa4 Qh6 23. Ne5 Rg7 24. Qxa7 Qh5 25. Qb7 Rcg8 26. a4 Ne8 27. a5 *
Position (FEN): 4n1rk/1Q3prp/2p1p3/P2pNp1q/3P4/2P2P2/1P3RPP/R5K1 b - - 0 27
Black to move.
Themes:  Middlegame  
Puzzle rating: 1640
Best move: f6