chinese rule have a important part about winning compute is called fill-stone-system(填子法). it means, you round a land, it's not yours yet, you need 'money'(stone) to buy it.

(to be continued, my phone need to charge lol)

in Go 19*19 Black have 181 stones and White have 180. if someone's stone has been captured, it(stone) will throw to the trash can. so if white lose 50 stone and round 180 places, he have just 130 places.

(my English is not good, sorry)

if im wrong plz tell me

ai tells me 填子法 should translate to 'filling system'