Hedgehog system - g6 againt f4 - a new idea

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paras_chess
While preparing Hedgehog system, I come across below game.
 

 

What is the logic behind 11th move ...g6 and later develops Bishop from e7.

...g6 is played against f4 by other GMs as well in the year 2014-2015. Is this some new idea in Hedgehog system against f4?

Also, white is scoring quite well with f4. So, what is the best way to counter f4 in Hedgehog system?

paras_chess

...g6 is played might be to prevent f5 or black is planning ...e5 and preventing Nf5.

GM_NitishDas

the idea of g6 is to play Nf6-e8-g7 and push f5 :)

paras_chess

yes Nitish, Nf6-e8-g7 with the idea f6 or f5 break seems good idea.