a question about c-betting

This question really brings up the fundamental reasons for betting. Let's say it's an otherwise dry A high flop, against an opp who will never fold an A and never call with a lower PP (QQ,JJ...) when you bet. Then you have no reason to bet. You don't get value from anything in his range, and you can't bluff him, so why bet? If you're OOP and you think they bluff 100% of the time when checked to, then call them down.

Obviously you have to adjust to your opp and the flop texture, for example you can possibly profitably bet against villains who chase with second pair or with draws. Put them on a range to figure out whether they call with this type of hand often enough to make a bet profitable.

Thanks for the link on playing KK with an A on the board! I've never really known what to do there besides experiencing a sinking feeling in the pit of my stomach and just betting to "see where I am" and hoping. (Which of course doesn't work in the long run in this situation as I understand now)

More importantly I ran into this exact situation twice tonight. I checked the flop, called the turn, then shoved the river after they checked... one flipped over QQ and the other JJ.

I owe you a beer at least original author!

There's plenty of spots where betting KK here is the best line because some worse hands will call and you get to take down dead money, and avoid putting yourself in a spot where you're likely going to maske mistakes due to having no clue about your opponents bluff frequencies should you check.

On A93r for instance you can get called by a range like Ax 9x TT JJ 99 33 etc which you're not doing that badly against and you avoid a situation where you call down too light or fold the best hand too often. It is possible that a bet you make can have less than 50% equity vs your opponents continuing range and still be the best option due to being more +EV than alternative lines. Think about that.

If you think your opponent bluffs turns with a very high frequency then check back this sort of flop and call turn bets.

If you think he bluffs turns with a very low frequency then check back and fold to turn bets.

If you're unsure then betting is often better due to the reasons above.