A king saved his friend

In this situation (in Teams Mode) I thought I checkmated red (I was blue):

But yellow found the only move to help his teammate.

Green must make a move now. So he moved his king and red escaped.

P.S.

Kings + pawns endgame in 4 Player Chess is possible.

and here is the video :

https://www.youtube.com/watch?v=-CjESVyrJO8&feature=youtu.be

btw nice game first time experience this situation.

Wow, nice move from yellow!

yup

That's why he's almost 1700

I've been thinking of zugzwang to avoid mate to be theoretically possible. First time I have seen it happen.