en.wikipedia.org/wiki/Awantura_o_kasę (polish version has more info tho pl.wikipedia.org/wiki/Awantura_o_kasę)
some differences compared to that article: now they are starting the game with 10000 PLN each and every auction starts with 500 PLN from each team, and champions in this episode started with the same amount of money of the round 1 winner (so, 19500 PLN in this case, which is why the prize pool got so crazy) and i think this rule is gonna stay