[cmyr]

Ryu's reasoning is probably "villain will bet any hand he expects to win at showdown and every hand that will never win at showdown, and I am getting 2:1 on my call." Against a villian who won't check behind with a sure loser this line isn't that bad with any hand that can beat a bluff, and ryu's hand can beat most bluffs. villian isn't (likely to be) betting here with a straight or a set, so his range is narrowed significantly.


I'm giving ryu credit here, but this is a line of reasoning that is fair and that explains the action.