I think the weird betting frequencies are to change what blockers the betting range has, in order to juggle as many of villain's bluffcatchers toward zero EV as possible. That's always been my understanding of what's going on in that spot anyway. A more understandable spot for a human might be if on Ah8h2h7x6x you were jamming KhXh flushes and wanted to bluff with KhXx no pairs sometimes, you would be making it so that anytime your opponent had a non-K heart in his hand he was blocking your value range but not your bluffing range, so to get the most efficient range possible you'd want to also occasionally jam a strong pair of some sort so that villain couldn't bluffcatch with 9h8c more favorably than AcJd. The more different sorts of hands exist in the ranges the more things you have to consider, and while a human won't be able to work this stuff out at a table very easily GTORB can easily iterate until it approximates a range which is making a lot of villain's bluffcatchers similarly valuable.

Another way of saying that is that if villain can bluffcatch with one of his bluffcatchers at +1bb and another at -1bb we're wasting value against a perfect player, and so we want to change our range somehow, often by doing something which looks really goofy to a human player, such that both of those bluffcatchers end up at 0bb instead.

I'm not 100% confident I'm right but that is my understanding of what's going on.

Hey Nick, nice vid...gunna start playing around with this software.

22:15 how does villain have Q9o/J9o/JTo etc in his call turn range...isn't he folding all these to the flop cb.

hey Stephen -

yea you're right, i botched the input of that range. i used the get-to-flop range instead of the x/c flop range. here is the tree with the accurate turn strategies after adjusting villain's turn range:

http://gtorangebuilder.com/#homeb=Kh7d2s9hsp=11st=93.75hip=1fc=0mr=0lm=0as=1bs0=0.67p0=22+,53s+,64s+,74-75s,85-86s,95-96s,T5-T7s,J2-J7s,Q2-Q7s,K2-K5s,43s,97+,T8+,J8+,Q8+,K6+,A2+,76,87_p1=22-77,74-75s,K3-K4s,K9-KJo,76o,87o,97o,A2o,ATo,K5-K8,T7,J7,Q7,A7,As6s,As8s,Ad6d,Ad8d,Ah6h,Ah8h

the Hero river c-bet range makes a lot more sense to me now -- he's only betting KT+ now otr.for value

thanks for pointing that out

At around 39:30 you pull up villain calling range on the river. Let me just take two examples where villain would call at about 50% with his hand and fold the rest. Take 95s and A2o.
So what this means to me in practice is that villain will sometimes call with a worse hand and sometimes fold a better hand. How is this strategy not dominated by a strategy where villain calls with 95s 100% of the time and folds A2o 100% of the time?

only problem with this stuff is once you finish the work then humans can't play the game any more. i guess if you don't do it someone else will, essentially it's all over and we can't play poker online any more.

limiting belief! :)

Hey nice vid!

@ 27:45 you mention that hero is 'only' cbetting river 40%, but there is also a green betting line below that shows hero shoving river with 24%, which I think is very interesting. I guess this makes sense because with the 9h we have quite some backdoor turned gutshots and FD's with good blockers to villain's check/calling range like JT/QJ (not 100% if those hands were in either hero's flop cbetting range or if villain has any KQ/KJ in his preflop flatting range though).

I don't think you mentioned this in the vid but I'm curious to hear what you think of this. You think this rivershove strategy might have effect on the 'weird' cbetting strategy of 2/3 pot which includes all Kx and some middle pairs?

DJ-

I shouldve said he c-bets ~64%. GTORB is splitting the river c-bet range into 2 cbet sizings, a 2/3 and also a jam allin. The correct way to read it would be to add the two together.
If you're interested, you can play around with the model link that i posted in an earlier response. It will help answer questions as to how hero is mixing his frequencies with certain hands between overbet jamming and using the smaller 2/3 sizing. My guess is you'll find GTORB mixing both lines with nutted hands, while favoring a more polarized range with the overbet line