River fold against maniac?

[jba]

well a lot of this depends on his betting patterns..

does he take advantage of position ? does he often call pf and flop to setup big street bluffs? would he "slowplay"
Ax like this?

depending on his showdown tendencies i want to just go into check/call mode on the turn.. if he's going to showdown a lot of the time, there's no reason to bet the turn IMO.