I contributed a  horrible win on board one as MTK beat Sztaki 4-2

I completely misplayed the solid Queen’s Indian and the resulting hanging pawns structure

Banhidi-Yip

Queen’s Indian/Closed Catalan

Board 1

After 30.Kg2Diagram)

Black started with a lost position which somehow got transformed into this nice passed d-pawn monster position

What do you recommend for Black?

After 30.Kg2

Just before the game started

Getting ready for the game