Puzzle time

[Juslas]

About Terence machination answer. Question was about the turn 20 that could have been played the way blue cannot prevent red winning on next turn.
Your answer is correct about turn 21 (blue), red having 6 wits (not enough). If blue had simply killed red sniper, that would have saved the base, too.
Simple 2v2 rule: prioritize units that follow your turn!
Turn 21 is not really a puzzle post worthy. Learning worthy it is. But turn 20, alternative move, is simple puzzle about placing units the way they do not block own team and same time limit opponent movement.