Hi folks,

I have an issue about effective stacks and pot when building the tree.. I play nl25 and i would like to run a simulation on a 4bet pot after the flop.
In this specific case I'm 100x OOP and Villain IP has more than 100x..What will be the effective stacks after the flop? ( I mean is only one stack or the sum of both stacks to be considered? ) I wrote down the starting pot on the flop which was 11.5 but pio tells me that stacks and pot are wrong..Can someone help me to understand where the issue can be,please?

Many thanks

Pio doesn't do fractions in starting pot nor bet sizes. The best solution is to multiply everything by 100 so the starting stacks are 2500 (-the preflop raise) and go from there. You will then have results which should be easy to read (it's just number of cents instead of number of dollars). This is of course doesn't change the optimal play

Thank you..But is the effective stack related to mine one or the villain?

Whoever has the smallest stack.

I downloaded and launched the free version of PIO solver, but all that happens is this cmd window, can anyone help me pls? (I dont have any poker running)



http://imgur.com/gx1Fd9Z

You want to run PioViewer.exe
Please follow the quick start video, here:
https://www.youtube.com/watch?v=QnzFpjSr3Lk

as free version now solves one flop (Qs Jh 2h) you will be able to follow it quite closely.

Thanks!
Yea I saw that video before, but there is nothing about problems Im having (instalation/launching/requirements).
WHen I launched PIOViewer.exe it says I need to upgrade my .NET framework, so I tried to install Microsoft .NET Framework 4.6.1 (both web installer and offline installer) but it says its not supported in my operating system, I have Win 7, any help?

Is there a simple option for locking a player's entire strategy (on all branches and all board runouts)? It would be nifty for exploring simplified (and therefore exploitable) strategies vs a static/unaware opponent who does not exploit our simplifications. Something like a "Lock player strategy" button. Then we could manually change/remove various branches in our strategy and recalculate what our simplifications cost us if our opponent does not exploit it.

Try version 4.5.2, here:
https://www.microsoft.com/en-us/down....aspx?id=42642

No but you almost surely don't need it...

You can just change your strategy without solving afterwards to do that. If you want to see yours max exploit there is set_mes UPI command although that's not currently in graphical interface. To use it:

1)ctrl+b to bring arbitrary solver command window
2)type set_mes IP (or set_mes OOP) and hit enter
3)click "calc_results"

I have heard some reports it's crashing for some people and I admit I haven't used it for more than a year (and I already fixed dev). Please let me know if it doesn't work for you.

Just to make sure I get it right, say I want to cut away a branch like XR turn on a tree. I click my way to a turn card and snip away the branch. Does the branch then disappear for all turn cards?

Thanks a lot, its working now

Yes although once you do that your solution is already quite worthless as the hands which played into that branch now are assigned somewhere else randomly (I think they go to the last action now but it's really not defined).

In general it's a better idea to build a new tree without that branch. I am not sure what you are trying to achieve, if you want to see how much worse choosing a different action is you can do that by looking at EV. Maybe try elaborating on a use case so I can try to help you.

Was wondering if it was possible to calculate a GTO strategy from the flop by defining a subset of turns and rivers rather than all possible turns and rivers. To give a simplified example, is it possible to calculate a GTO strategy on a flop of Qs7c8h and then delimit the possible turn cards to 9c, Ah and the possible river cards to Kc, 8s?

This is an interesting and promising idea. We didn't try it yet though.
The functionality to only choose some turns is not available right now. Would you like to have it in order to calculate flop strategies faster or just for experimenting with various toygames?

Considering the vast, vast majority of computing power goes into the flop I have no idea why you'd ever do that.

Maybe there is some misunderstanding but the solver spends almost all its time on the river. That means that limiting number of possible turns (and therefore rivers) would speed things up proportionally to the number of turn cards removed.

Yes, but if you actually prescribe turn and river cards flop play is going to be wildly inaccurate. Starting at the turn makes some sense because it's a complete existing subgame; ending at the turn is nonsensical unless you're playing a weird modification of hold'em.

What I would like to do is to see how a simplified strategy (removing some options) performs against a player who is unaware that I am not using them.

Let's say we 3B OOP and we hit a flop where we have a very high CB% using a small sizing (say, CB 85%). For such cases we can achieve almost the same EV (and CB unexploitably something like 95%) by check-folding our very worst hands and betting the rest. This is an attractive option because it's simplifies our flop strategy to two options (bet or c/f) and the simplification comes at very little theoretical cost.

If we put such a tree into Pio (removing our flop Check-Bet-Call and Check-Bet-Raise branches), Pio will of course bluff every time we check. I was curious how such a simplified strategy would perform against an unaware player who will play against our checking range as if we still are using the c/c and c/r options.

If he doesn't bluff every time we check, our weak checking range will get to realise some equity on future streets (stabbing options, spiking something) and make some money against an opponent who is unaware what we are doing and believing our flop checking range is proper.

On the flop it's easy, we can compute the equilibrium, save Pio's ranges, remove our c/c and c/r options, recalculate, and insert/lock Pio's flop equilibrium ranges vs our bets and checks for the full solution into the simplified solution. But I have no clue how to continue that experiment on the turn. Let's say we do these things, and look at the branch where Pio checks back it's full-game-equilibrium checking range on the flop and we arrive at the turn with a handful of junk hands vs that range.

Am I right to assume that we should now be able to stab profitably at some turns with our junky range, if Pio was operating under the assumption that we had our optimal flop checking range? (which is much stronger than our actual range).

My idea (which might be a bad one) is that if we have Pio landing on the turn with it's full-game-equilibrium strategy for all turn cards, we could figure out the turn cards where Pio would fold often enough (believing our turn range was our full-game-equilibrium range) to allow profitable junk stabs. Then we could cherry-pick those turns for exploitative +EV bluffing opportunities.

Does this make sense? Not claiming this is particularly useful study project (might be useful in an anonymous pool where the opposition would not be able to catch on), but I got curious about exploring it. :-)

I like the idea

The idea is that if you use for example half turn cards and half river cards then maybe flop play is going to be reasonably close while solving would be 4x faster.

You can use the node-locking form to change the strategy and then without running the solver click "calculate results" and you will have your answer.

If you don't do anything after locking it will still play what was previously GTO in such spot which includes some stabbing (and opponent will still fold as they was playing vs optimal strategy not realizing we only have junk in this branch now).

Again, if you change strategy on the flop to only check junk behind and you don't run the solver after that (just click "calculate results) you will have exactly that: one player stabbing as it was still GTO range and another folding as they were facing GTO range.

I hope that makes sense. I get the "lock all range" suggestion often but I fail to see how you can do anything with it which you can't by just changing our strategy and looking at the results.

How much RAM do I need to run 100bb preflop sims from the point of action after a raise and a 3bet?

As usual it depends on details. 32GB should be plenty, maybe you can fit it under 16GB as well.

I have purchased a basic version of your solver with one activation code. I am planning on buying a new PC, partly because mine has reached an aging time of 5 years, and also because SIMS take too long to run on my old PC.

Don't know if this is asked before, but am I not able to have another activation code if I buy a new comp and dismiss another Pio from my old PC?

As this is probably the most frequently asked question I get, let me copy-paste my response:

Of course if you need a reset from us, please communicate by email, don't post personal information (key/email/link) on a public forum.

Thx for a quick answer. Great support.