It's $200/$400 NL Hold'em with a $100 ante, six handed and UTG player straddles for $800.

UTG+1 folds.
Hero, with 6h5d, raises to $2,600.
Villain on button calls.
Small blind folds.
Big blind folds.
Straddle folds.

Heads up to the flop, with a pot of $7,200. Villain has a super LAG reputation--EVERYONE knows he plays extremely aggressive.

Flop comes 6s 6d Kh. Hero bets $4,200. Villain calls.

To the turn, the pot size is now $15,600. Turn card is the 8d. Hero bets $10,600. Villain calls.

To the river, the pot size is now $36,800. River card is the Js. Hero bets $25,600. Villain raises to $65,600. Action is back on hero. It's $40,000 to call a pot of about $130,000.



Now, these are both very good players. Before you just say "snap call" or "all-in" for Hero, let's go reconsider the hand.

What range of hands do you put villain on preflop when he calls a raise from the cut-off?

What range of hands do you put this aggressive villain on when he just calls on the 66K flop?

What range of hands do you put this aggressive villain on when he just calls on the 66K8 turn?

What range of hands do you put this aggressive villain on when he raises on the 66K8J river?

Hero's 65 is chopping against all 6s except 68, 6J, 6Q, 6K, and 6A, to which he is losing. Hero is also losing to KK, JJ, and 88.

Given the way villain has played the hand, it looks a lot like an A6 type of hand, and I can see 88 possibly playing the hand this way. Given that we know villain is very aggressive, I figure we see a raise on the flop from most kings here. As hero, I think we can pretty easily put villain on a 6 here--and in that case, we can't call just to chop, because as I said, some of those sixes have us beat. So part of the time he has a six we win half the pot, and the other part of the time we lose, so it's a -EV call if we put villain on a six, which I think is very easy to do here.