Now the f6-knight is protected by the rook. The strong pressure against e4 forces White to exchange his h4-bishop.
Unity Chess Club
Marc Narciso Dublan-Evgeny Solozhenkin France tt 2001 Does 12.Ng5 make sense here?
Actually, this is quite a common manoeuvre in the Colle to gain space. So the answer is yes, since…
12.Nd2 c5 (12…Qxg2 13.Ke2!, and Black’s king is walking a tightrope) 13.dxc5? Rd8.