AA At 100NL

[swedeD]

The pot is $71 and he have around $60 left. No point to make a 1/2 blocking bet here. Villian will probably call with better hands like twopair or set, hands he can check behind after river if you check. So you loose less against that kind of hands if you check.

If I hit the backdoor flush or straight on the river, I would push hoping he think I'm bluffing or overplaying my pair or AK. So with that pot compared to what he have left, it wouldn't suprise me if a player who is capable of a all-in river bluff, will take your 1/2 pot bet for just what it is - "please don't bluff me when I have an overpair". When he only have less than the pot left, a push is not that far away with missed draws, another overpair or of course a straight or flush, regardless if you make a 1/2 pot blocking bet or not. So it all come downs to if he bluff often enough, your blocking bet doesn't change that much, you just get better odds to call his push, so you have to be more certain that he rarely bluff (or just get frustrated with his overpair or whatever) in situations like this.