heyo: This "pass stone" is essentially the Chinese scoring system, which others have suggested in this DB before. Chinese scoring actually fixes several nagging issues encountered on this site with the Japanese scoring, mainly dealing with people who don't understand scoring completely.
(verberg) Als u meer over bepaalde spelsoorten wilt weten, kunt u naar de Linkspagina gaan en kijken of u daar interessante sites ziet staan. (pauloaguia) (laat alle tips zien)