What is the difference with flop As Ks 8h
What is the difference with flop As Ks 8h when BTN open we know it is always OB flop, and BB 3 bet vs BTN we also bet big, but why BTN vs HJ 3 bet we only bet small and betting range, I know we have big advantage in range and position, But I think there must be some reason more than that. I am new to GTO please enlighten me
2 Replies
I would guess in BTNvHJ, HJ folds a ton to a cbet(because BTN hit this flop super hard) so small bet is enough to get the job done. If BB cbets small IP probably can call pp with spade and this sizing gives him an option to gii in tow streets.
This is just my guess looking at the small range cbet 3bp.
At 500 NL rake structure, HJ's calling range against the BTN 3-bet only includes about 50 or so combos, more than half of which are pocket pairs between 22-JJ, the rest are A-broadway suited and K-broadway suited combos with more or less mixed preflop frequencies, and less than 3 combos that just flopped a flush draw or a combo draw, like JsTs or 8s7s etc. Virtually zero two pairs and something like 1.5 sets.
I'm thinking by betting just small to medium with the entire range, the solver will just simply make more EV against such a weak range despite the nut advantage, because HJ has so few hands that can call or raise a larger bet, much more of those that can call a smaller bet with some weaker but still made hands with back doors or not.
Then when HJ does call, BTN will start piling in large or OB on most or possibly all brickish turns with a polarized range.
I think in a lot of spots in 3bet pots, solver logic could be understood in a simplified way by thinking: "How are we going to make the most EV out of the callers pocket pairs?". If those pairs cannot call a large bet at all, then we bet a size where they do call at least some of the time.
In the other two spots, the pre flop caller's range is much wider with way more draws, which gives the pre flop aggressor a reason to make the caller pay more right away to realize their equity, but still doing more checking than betting.
There might be some overall betting volume reasons or abstractions which could be useful in understanding these sim results better, but I'm not smart enough to understand or explain those, I just know some more studied players do at least talk about it.
There are smarter people here, so feel free to correct my guess work.
