Toy game: Exploitation in the Ace-to-Five Game
A toy game in "Play Optimal Poker" by Andrew Brokos. The 4 tables in this post provide the players' equilibrium strategies .










I am racking my brain over why the value of checking As, Ks and Qs also decreases. The intuitive exploits with these hands that I came up with was to check-calling 100% of them. Isn't it true that if Ivan's bluffing frequency remains the same, but his calling frequency with has gone down, we would no longer have an incentive to play a mixed strategy with our strong hands? What am I getting wrong here?
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You are correct if IP bets same strategy as it would be in equilibrium, but folds too much you should check value hands and not lose any ev.
He probably did this with solver, if you node lock solver to over fold he will also bet much less vs a check, making value hands indifferent between bet and check.
There is one video on betting volume by Thombos, this is concept explains why this happens or you can look it the other way checking range is much stronger, so IP cant bet as wide so he ends up betting less.
Here is a video
https://www.youtube.com/watch?v=-JUOaV0y...