Teams puzzle! What's the move for green?


This is a teams match! So green and blue are working together.

Qe10 followed by blue's d11 is an unstoppable checkmate on yellow
Correct! And then either green or blue could deliver the mate. Qxe4+ ... Nh11 Kf11 Qe10+ ... Ng9+# almost works, except that red can prevent it.

Kind of simple...red doesn't even have any threats so what's even the puzzle part? Mate in 2 on yellow...

Kind of simple...red doesn't even have any threats so what's even the puzzle part? Mate in 2 on yellow...
Yes, it's a mate in 2 puzzle. Not too difficult, I know.

But I mean in a puzzle, if you fail to find the correct solution you end up in a losing position, in this case, blue and green are already winning even if they fail to find the mate