King's Indian structure in FFA

Introduction

The King's Indian Stracture is in my opinion the safest way to play as red or yellow. And the basic one looks like this:

Known as King's Indian Attack.

There are several similar positions that can be useful to play, but the basic concept is to fianchetto King's Bishop, Knight "f3" and castling and then going for Queenside pawnpush.

The other position that I am playing a lot of times looks like this:

It is by far my favourite structure without any complications and accidents by any opponents.
The idea of going with Ng2 is to protect the Knights by each other and it also gives to red possibility to play h3 to block light-square diagonal and create a base of pawns.

The other possibility that might be even more safety for the King is to bring Queen's Knight to the Kingside where is defending even more:

This Knight manouver takes two moves. He is occupying several squares that in one hand protects the King from possible green's attack and also does some activity on the center. It is somewhat also claering the way for pawns to go forward.

Blue/Green

The thing of playing this system as for blue/green is that, they are castling on the leftside, which is in general a more dangerous side, you might get in danger if your opponent starts to attack you and if your rightside wishes, he can also join the attack. You can also check tips: https://fourplayerchess.blogspot.com/2017/11/tips-in-ffa.html

Move order

We will focus from red side. The best move in my opinion is j3, cause it already opens the diagonal for bishop and also prevents green from playing l5 himself. Then you fianchetto the bishop on j2, also putting some pressure on blue. Then you can go other to fianchetto another bishop or develop King's Knight on i3 and quickly go for castling.

Also another issue with Ni3 is that green can play k4 which is kinda unpleasent.

If you wish you can kindly go by the PGN from images.

I think that's all about King's Indian in this lecture. I will add some games in the future to explain even more about this kind of stractures.