http://www.handconverter.com/hands/2513439

I have no idea what villains betting range is, however, I would like to exclude hands like QJ, Tx, 5x, h-draws, J9. For me to be good here I need to be winning ~22% here against villains range. The way he played the hand, I would pretty much always exclude bluffs. I think his range is capped to Ax on the river. Thus I fold (anyone disagree?).

What about someone who is capable to have a hand like 76/QJ? I would need to call ~73% of my range to make him indifferent to bluffing, correct? Now, if he adjusts and simply does not bluff, why is my strategy of calling 73% of the time unexploitable? Wouldn't he be exploiting me right there by not bluffing?