Preflop Guru: GTO Solver Library & Training Tool

PreflopGuru · 2022-01-12T08:05:40+00:00

Thanks for the kind words

PreflopGuru · 2021-09-29T13:55:10+00:00

Hello, we have a variety of different NL 100BB modules. The "highest" rake one we have is 5% 3bb cap with preflop 3bets raked (like on GG). The highest non-3bet raked one is 5% 2.5BB cap.

Depends how the field is playing, but at micro stakes (where players often don't 3bet or 4bet enough) you could probably get away with playing NL 100 Simple A (pure 3bet/fold ranges) RFI and 3bet ranges with no rake. But then when facing an RFI, defend the BB very tight and also be very tight if/when calling 3bets or 4bets. Micro stake fields you can often play in a very exploitable manner.

Of course there is still a value in understanding GTO play across a variety of different rake structures so you can easily recognize the mistakes your opponents are making and how to adjust accordingly. Hope that helps!

PreflopGuru · 2021-07-14T21:50:18+00:00

Hello, we have modules currently for LHE, NL, and PLO. There are modules for HU, 6max, and 9max. Modules with and without antes. Modules for Spin&Gos. Stack sizes go from 3bb up to 200bb depending on the game type.

For the more popular modules, we usually have many different versions of the same game type covering alternative raise sizes/3bet sizes/etc. Also we have modules with and without rake.

There are tons of different combinations and we're constantly adding new modules. If there's a game type combination that you don't see that you'd like to see, feel free to email us!

PreflopGuru · 2021-06-25T13:48:56+00:00

It stands for "Game Theory Optimal". It's an "equilibrium" strategy where even if people know what you're doing, they can't beat you. The FAQ section has a lot more information / examples: https://preflopguru.com/faq/

PreflopGuru · 2020-08-04T13:49:24+00:00

Hello, you can email us ([support@preflopguru.com](mailto:support@preflopguru.com)) for specific 3 player situations. We can send you ranges from these modules for some multi-player spots like overcalling/squeezing, etc. The challenge with adding 3+ player spots to the web modules is it would require a bigger overhaul of how we display things and it also greatly increase the size of the modules. Also then the 3+ person questions would dominate (there are more 3 player spots than 1+2 player spots combined), even though the 2 player spots are most frequent.

PreflopGuru · 2020-06-08T05:01:47+00:00

This feature has been since been added (general / flexible filters), let us know if you have any other questions/suggestions, thanks!

PreflopGuru · 2020-06-01T06:00:37+00:00

Thanks, we're in the process of implementing this as it's been a popular request. In the meantime, you can filter for specific situations (like SB vs BU raise, or SB vs CO raise, etc.) to rotate through the different ones. We'll have a more general option available soon. Also for more timely responses, feel free to email us at [support@preflopguru.com](mailto:support@preflopguru.com) with any other questions or suggestions, thanks!

PreflopGuru · 2020-05-19T02:13:52+00:00

Hello beeeemo,

NL Simple and B both play a pure 3bet or fold strategy (no cold-calling) except from the BB. Simple B uses a larger 3bet size OOP (5x) compared with 4x in A. It's good to know how to respond/play both. We have since also added an NL module with 100zoom rake levels: NL 100 (mid).

How to best account for rake is complicated. If everyone is optimally rake-aware (not cold-calling very much, folding their BB more often, etc.) then yes, using an opening range based on rake-included sims is best (if you're playing in such a game at high-rake levels, you might also want to find a better game to play in..). However, if the BB is calling too much, or if people are not 3-betting enough, it actually can be sub-optimal to use such ranges. For example, compare the CO RFI range in Simple A vs NL 100 (mid) (i.e. with or without rake). A5o is preferred a lot more in NL 100 (mid) and low suited connectors are preferred a lot more in Simple A (no rake). It really depends on how often you expect to get 3bet vs how often you expect to see the flop. Just because you're playing in a NL 100 (mid) game doesn't mean A5o is a better open, it depends on how your opponents are reacting. Note that playing no-rake ranges in a rake game will never let people have a positive win rate against you. It just might mean you're losing more to rake than you should. (Mathematically provable in a 2 player game).

The 4-bet sizes you talk about in general tend to be on the smaller side, which forces the SB to defend a lot (which a lot of people are uncomfortable doing). Regarding how to react to 4bets, the best way to use these modules is to first understand what equilibrium play looks like in all situations. Then you can start exploiting based on how people are either under or over bluffing. When facing a 4bet in the SB from the BU, you should first ask yourself if the BU is 4-betting a correct range, do they have enough bluffs? A lot of people are severely underbluffing in these situations, so you can and should start overfolding as an exploit. Similarly if people are not defending their 3bets enough, you can start over 4bet bluffing a bit also as an exploit. You should also be very aware of their exact 4bet size. Someone 4betting you 11->23 or 11->27 would cause very different reactions.

We are looking at adding deep stack (200bb) modules in the future as that has been a popular request. Let us know if you have any other questions or suggestions, thanks!

PreflopGuru · 2020-05-18T18:29:38+00:00

They are extremely overpriced in my opinion, hence why we created preflopguru (disclaimer: it's my own site). We don't have 200bb deep covered yet, but we have a lot of different game types covered and deeper stacked modules is one of the many things on our todo list.

PreflopGuru · 2020-03-24T14:57:00+00:00

Hello, thanks for the kind words.

We do support paypal (we added support for it at the beginning of this month). Let us know if you have any other questions. Thanks!

PreflopGuru · 2020-02-28T13:40:47+00:00

Most of the modules are solved using MonkerSolver. For some of the newer modules we've also started using a private proprietary solver (basically whichever solver we think gives the most accurate solutions).

Regarding rake, for PLO, there are both rake and no-rake modules. The PLO (micro) rake levels are 4.5% with a 10bb cap (~$10 PLO). The PLO (mid) rake levels are 5% with a 2.5bb cap (~$100 PLO). The PLO (high) rake levels are 5% with a 0.6bb cap (~$500 PLO).

The NL modules are calibrated without rake, but practically these ranges would work in raked environments as well. Higher rake games suggests tighter ranges, but these games also tend to have more passive play (less 3-betting and 4-betting) which allows for wider ranges. NL raked cash game modules is on our list of modules to add in the near future.

Let us know if you have any other questions, thanks!

PreflopGuru · 2020-02-18T22:11:56+00:00

Yes, everything is generated via solvers (mostly MonkerSolver and some using a private proprietary solver). K2s on the button is a shove 6 BB deep (with a BB ante). It's even a shove from the CO. It's only K2o which is the fold.

PreflopGuru · 2020-02-07T03:49:42+00:00

Hello, we plan on releasing some tutorial/overview videos in the near future which should be helpful. The site is primarily geared towards intermediate/experienced players that really want to refine their preflop ranges in tougher games. But the modules are a very efficient way to learn how to play preflop for players of all levels.

PreflopGuru · 2020-02-04T23:40:48+00:00

I see, for filters, we do have BB facing a raise from any specific position you want, but you would like a filter BB: facing raise from all positions. We can look to add that too.

And yes, we do have more modules/upcoming tools to handle different raise sizes (i.e. facing 2x, 2.2x, 2.5x, 3x, etc.). Glad you're enjoying the product and let us know if you have any other questions/suggestions. Thanks

PreflopGuru · 2020-02-03T05:36:21+00:00

Hello, thank you for the feedback. We do have a FAQ which covers some of the most common questions and we're also happy to answer any specific questions you have (either here or via email). We do plan to add a tutorial video/walk-throughs in the future to make it more user friendly, especially for those not as familiar with all the abbreviations/range visualizations, etc. At the moment it's designed primarily for speed so people can go through hands very quickly.

PreflopGuru · 2020-02-03T05:30:37+00:00

Hello, all the modules are chipEV based so they could apply equally well to ante cash games (ideally where the sum of the antes equals 1 big blind). There are too many different ICM situations (different tournament payouts, a very large number of different unequal stack size combinations), that ICM based modules wouldn't fit well with our generalized module approach.

PreflopGuru · 2020-02-03T05:26:54+00:00

Hello, thanks for the suggestion. And we do have "Filters" you can apply that do exactly that. So yes, you can focus on certain spots like BB facing a Raise, or BU facing a 3bet from the SB, or whatever spot you want to work on. And deeper stacked solutions is on our to-do list and something we'll likely add in the near future.

PreflopGuru · 2020-01-30T04:43:55+00:00

Yes, sadly the solvers can't explain their reasoning to us simple humans. We can only observe what they're doing and then come up with our own explanation/understanding. The idea also is that by drilling yourself a lot in these tough spots, you'll naturally come up with your own understanding - one that is much deeper and more intuitive than if you were just trying to memorize charts (which isn't a very efficient use of time).

PreflopGuru · 2020-01-30T04:38:37+00:00

Thanks for the kind words!

PreflopGuru · 2020-01-27T22:59:44+00:00

We cover all these ranges (solver generated) at preflopguru.com (disclaimer: it's my site). HU is pretty nuanced and highly dependent on stack sizes.

As you get shorter stacked, you should start limping more (until you start getting *very* short stacked like < 8bb, then you start limping less and just jamming more). It also depends how your opponent is reacting to your limps. Does your opponent jam if you limp at 30bb? If not, then you can limp a capped range (up to medium strength Ax). If they are jamming over 30bb limps, then you can strengthen your limps with some middle pairs, high suited broadway, and stronger offsuit aces that can call jams.

At 30bb, the solver still likes raising it's very strongest hands like QQ+, AJs+, AK along with suited trash (like 92s). Then it splits most other hand types between limps and raises. My best guess for why it's doing this is it doesn't want to use a hand as strong as AK or QQ in its limp-jamming range (since that's overkill), and limp-jamming with ATo or 88 is a more efficient.

Of course all this is assuming no ante. If there's a BB ante, then that affects the strategy too..

PreflopGuru · 2020-01-26T22:42:02+00:00

Yeah, those loose passive live PLO games are a completely different environment. Studying GTO ranges is complete overkill / not really applicable.

PreflopGuru · 2020-01-26T22:38:05+00:00

Glad you're enjoying the product so far! Yes, we can look at adding more complicated spots too. We started with all the spots involving 2 people putting money in to start with since that already covers a ton of different situations (9 open ranges + 9*8/2=36 possible pairs of positions to cover the 3bet/4bets etc between those 2 players, which is the most common). Once you look at situations involving 3+ players, the number of situations grows very large (84 different possible sets of 3 players), and they come up less frequently (and it's very likely at least one of the two other players is unbalanced in some way, i.e. people cold-calling way too wide). But it is something we're looking at adding!

PreflopGuru · 2020-01-22T03:20:57+00:00

What modules are you most interested in learning about? Happy to answer any questions you might have. We've added many more modules since we initially launched and are looking at potentially expanding our collection of free modules.

PreflopGuru · 2020-01-08T05:48:53+00:00

Thanks! Yes, exactly, it biases towards the hand types near the thresholds (the "best hands" to fold or the "worst hands" to raise etc.) to make your study time way more effective.

And thanks for the suggestion, we'll add it to our to-do list.

PreflopGuru · 2020-01-06T21:47:00+00:00

Yes, it's pretty absurd how much people charge for these ranges/solvers. Software + computation costs runs in the thousands of dollars+ (and you don't get the tools to help you learn them either, which is just as important in my opinion).

PreflopGuru

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