10PLO R&C - KK62 River bluff spot?

Against a nit we might consider folding our hand heads-up preflop as we are dependant on villains overplaying tendency postflop and our weak structured KK performs not that great against a very tight opening range. But this is marginal, a call is not a bad play I´d say and could be justified by loose blinds calling after us ie.

The flop call is not good (against the typical GG-nit which I have a long suffering history against..). Our hand is a possible mix of bluff and protection-bet against those (passive when checking) opponents blocking the straightdraw but facing a bet ourself without improvement possibilities we usually fold. His tight range will have a lot of high ranked cards that hit the heavy structure of this board well, the bet itself is showing additional strength.

The turn call as a default is okay but for different reasons than Solver. Often those tight players just bet with stuff like combodraws (where some should be check-raising oop) and mediocre twopairs or naked AA`s and just 2barrel all of them but continue a fit-or-fold playing style on the river with a relatively high checking frequency, this gives us enough equity and also playability for the single early street. Afterwards we have no implieds against an already pretty value-heavy range. Against some we can occasionally pull crazy rabbit bluffs out of our hat when the texture shift allows us to do so but bluff-raising immediately is often deadly. Some rivers we can value-bet thinly with comparably stronger hands like your second-nutflush if we hit you can bet 1/3-1/2 pot to get value from his non-nutted backdoorflushes. Many tight players mix stronger SDV combo stuff like (2-)pair+flush-/straightdraw and barely have blocker-/weak bluffs when 2barreling. Remember, his range ott is a big deviation which means we do not need to actually call the turn defensively a lot.

The river check for SDV is standard and usually a good play but against a straightforward nit I´d consider bringing a pot-sized bluff repping a or even without blocker. When being called it is important to take a note of his bluffcatcher, tendencies here can be very different. In general they overfold here because people tend to underbluff when pot gets big against a perceived value-heavy range and ofc they are aware of their perceived tightness. Use it against them. They do have that regular discipline to make those ridiculously tight laydowns, especially on Rush tables or they are grinding multible tables for rakeback. That daily 25$ leadboard or platinum octopus rakeback prize is a relatively to western countries more purchasing power in their countries and often enough to make a living out of it. Many of them just sit there and raise the nuts, pot-control the stuff inbetween. Overall we are likely to have lots of FE on a final texture shift against someone betting merged and protective which I think makes betting a superior exploitative option. He is likely to fold a bunch of hands with better SDV he has been valuebetting with like :5x:, or

To his hand: Barreling naked AA (marginal SDV) is a mistake from his perspective but increased postflop aggression with more marginal hands is pretty common among nits due to their tight preflop tendencies. Those tight often Asian/Russian players are very merged and value-focused with their aggression but have a very unbalanced strategy overall.

Thanks Mascherano95, Super detailed explanation!

In terms of preflop I think you are correct, perhaps it will not even hurt us that much to fold pre. However on the BTN I think a call is fine, allthough very slim and marginal.

As played I think fold flop is indeed best, allthough it might feel weak. Thanks for also considering and explaining turn and river play!