According to GTO ( simple postflop) we should check back 4d5s in hu in position ( 14 deep both) 90% of times with a flop like this: Qc 4h Qh .
I don't get the reason.
There are also other weird gto solutions. Is there a way to learn the basics of GTO without memorizing thousands of boards?

GTO doesn't value protection as much most people think it would. It checks back here bc vs a x/r we're going broke with 4X combos usually at such short stacks. BB response on this board is to play a high x/r strategy I imagine (XXY, Y is very volatile...turn usually overcard).

In practice, just cbet here. Hardly anyone defends aggressively enough for cbetting to not be the best option.

I see, thanks. These spots are really counter intuitive for me.

Just look for common themes and general heuristics when reviewing GTO play. Like for example, you will notice that GTO doesn't value protection as much as you would think as I said. Also, you will notice that strategies are pretty similar on similar types of texture - for example the QQ2 JJ4 KK3 high paired low second card boards. You don't need to much of anything imo, but once you study/understand just one of these textures well and consider mistakes the population is making then you can extrapolate across other similar textures. That felt like a run-on sentence.

Yeah some spots are basically the same and have the same solutions. Do you know about any resources/site to learn the general lines of GTO?

lucidgto and simplegtotrainer are you best bet i would think. I just ran my own solves in PIO over the last few years and studied that way, but that's pretty time consuming and I think these sites are probably way more time efficient.

But if gto wise the protection is not that important, why on this spot ( 14 deep, we are on the sb)
ks 8c 3h (limped pot)
we have Qs3s and must bet 98% of times?

I have gto trainer, but they don't provide some kind of explanation for the solutions.

BB plays a more passive strategy here on a less volatile texture. If BB is x/r less, SB cbets more. Q3 has some thin value, and also values protection (i'm not saying it's a non-factor). Also, Q
3 dominates the other 3X combos which will usually check down after w us after calling flop. If we check flop w Q3, we can't bet unimproved turn/river bc it's too thin and we miss that value vs 3x. A combo like QQ is probably a 100% check here though, and that's bc it doesn't need protection on flop and most turns are fine for it and can get value later streets.

I see thanks

You can try to figure out things, but dont try to repeat them.
This is good example how should you approach things.

In GTO you can always find part of the answer by looking at what other player is supposed to do.
GTO will play passively a lot of hands in a lot of spots because other player is supposed to raise, but in practice people dont raise that much and fold more than they should and that makes betting a lot better.

Always check what other player does and compare that to population, because in a lot of spots as soon as you change how other player plays, your play changes drastically.

Check what hands BB should call and x/raise here, adjust it a bit closer to what people actually do, like make BB fold a bit more backdoor draws, pretty sure BB should continue some Thx, Tcxc backdoors and 65, 76 with hearth, prob even wider, make bb fold those hands most of the time and also imo bb plays 4x more passive than gto would and if you do that pretty sure SP will show you that SB bets 100% of its range which is actually correct thing to do.

You could also make SB bet a lot and check how would BB play change and try to copy something from it, basically get idea how BB exploits high limp cbet in spots where is shouldn't be high.

thank you, very useful advices... this is really tough to master

Just keep in mind that guys crushed for years without even knowing what GTO is The main reason to study GTO is to make better exploitative decisions.

One of the most unusual new things for me is the idea of sometimes raising middle pair, which I thought was plain wrong ( he would never call me with something I beat, I thought)...

beautiful!

also having a sound understanding and foundation is must before a need for GTOlookups.
like vs fish game should be locked solid.

/// I'd call A9o+ A6s+ 55+ ///