Re: 3/6 3bet pot facing river check raise
I don't see him with a straight (he would have led on the flop or made a pot sized bet on the turn) he cannot have QQ (he would flat call on the river fearing AA).
A bluff is very difficult to pull since he knows that there is a strong possibliity that I have AA
I am folding.
By the way I would have bet 150 on the flop. If player4 raises, I will fold, if player3 raises all in I will call.