[Rush17]

Rolled Kings would NEVER check 5th street when the action gets to him, especially seeing how ultra aggressive he was before that. When the 9 doorcard makes open J's and checks, if he had KKK, he would bet. So, if you thought that it was a possibility (which of course it was) now you can remove it from your list.

I would play 6th street differently. You already know that you're trailing to 2 pair when the K bets. You already have the low side locked up. By raising, you force out a hand that might make a better hand than K's up, hence, making your side of the pot larger perhaps.

And the river bet is NEVER pointless! Anyone who checks behind in these spots with a hand that CAN NOT lose, is playing sloppy poker. Why? because once you start saying, "this bet is silly", you start to miss bets in other spots without even realizing it. Always bet, always give them the chance to fold. Whoever said, "Never underestimate the misclick," is correct, and it's just another reason why betting is such the favorable choice. Also, if you only bet when you improve, don't you think that really good players will start to fold more correctly against you? I wouldn't give them the satisfaction of checking; when you always bet the river in these spots with a hand that has one side locked guaranteed, then you are also disguising your hand, AND, you send the message that the river is NOT going to be free for them when you don't improve. Because by doing that, you make their life/decsions that much easier. F&*# that, make them pay, scare them a little if you can. That's what it's all about, or at least, a part of what it's about. Besides, betting a no-brainer is fun!