Thursday, July 9, 2015

GTORB / Simple Postflop Integration and Discounts

Over the past month, I've been working with the Simple Postflop creators to integrate our functionality and today we're launching the first major step in that process.  If you compute a flop scenario using the Simple Postflop desktop version or a turn/river scenario using their free version, you can now view and share your solution via GTORB by going to File-->Share in the menu.  I've made a quick tutorial video that walks through this process here:





Sharing/viewing solutions that are computed using their SaaS license will be available soon as well, hopefully within the next week.

As part of this launch, the Simple Postflop team are also offering the GTORB community a 50% discount on a month of their SaaS version (100 flop calcs for $35) or $70 off their desktop client.  Just click this link before you make your purchase and your GTORB discount will be applied automatically: http://simplepostflop.com/en/Buy?source=gtorangebuilder

Hopefully you guys enjoy this new integration!  If you have any feedback on how we could improve the experience or add additional integration features let me know in the comments below.

Tuesday, July 7, 2015

GTORB Flop Library Highlights #2

Its been a while since my last highlights post and the flop library has more than doubled in size, so I expect it will hit 1,000 solutions sometime this month.  In this post I am going to take a look at two interesting results that come from some analysis done by our community.  The first result comes from 6-max 3-bet pot scenarios but applies to all game types.  As always you can get access to all our Library solutions starting at just $20 on our buy now page.  The second result is an example of a good usage of our new minimally exploitative solutions that I use heavily in my latest In Position C-betting strategy pack.


Ah9h5c vs Ac9h5h



An important, and often overlooked concept on high card two-toned boards is that in general the board texture where the top card is the same suit as one of the other cards is fundamentally different from boards where the top card is the only one of its suit. 

The reasons for this is very simple, lets consider a 3-bet pot in 6-max as an example.  On Ac9h5h, top pair + nut FD is a very common and highly strategically relevant hand, whereas on Ah9h5c it is not a possible holding.  In addition, if neither player has A9o in their range then there are 3 possible top 2-pair combos on Ah9h5c vs 2 such combos on Ac9h5h.

The result of this is that in a SB vs BTN 3-bet situation where the SB 3-bets 15.5% linear and the BTN calls with 20.1% of hands, in terms of EV Ah9h5c is much closer to A95 rainbow than it is to Ac9h5h.  In fact, with the same game tree and starting ranges the strategy EV for the SB on Ac9h5h vs Ah9h5c is about 25bb/100 higher (approximately 8x the nash distance) while Ah9h5c and A95r are within 7bb/100 (~2x the nash distance).

The three relevant solutions are here:
In order the EVs for the SB are 10.7 (Ac9h5h), 10.44 (Ah9h5c), 10.37 (Ac9h5d). 

Now lets consider taking that same setup but changing the A to a K, which is in general always going to be more favorable for the SB.  It turns out that we get a similar (but slightly smaller) effect where Kc9h5h is more favorable for the SB than Kh9c5h which is turn more favorable than Kh9h5c.  However, in this case it turns out that the rainbow version of the scenario is by far and away the best version for the hero.

The reason for this is quite interesting and is a concept that comes up somewhat frequently in GTO calculations.  As I noted before the K high boards are in general more favorable for the hero than the A high boards and this is reflected by a significant increase in c-betting frequency on all of the two-toned flops.  In general the SB is c-betting around 40% on the two toned A high flops whereas he is c-betting around 70% on the K high flops.  

It turns out that on the rainbow K high board, the SB hits a break point where suddenly his range is strong enough relative to his opponents that he can effectively bet his entire range, because when all FD possibilities are removed from the BTNs range his positional advantage decreases and his range disadvantage increases and he suddenly no longer has enough combos to profitably defend enough to make any kind of bluff -EV.  In general hitting these types of break points can be extremely strong because it means that there is no longer a requirement of balance between a betting and checking range and when these types of breakpoints are hit we can see sudden, large EV increases.  In this case the rainbow board is about 60bb/100 better than the best of the two toned boards.

The relevant solutions are here:


There are a bunch of additional similar scenarios investigating the detailed implications of suitness on a variety of boards that you can check out in the flop library.  If you filter by string for "SB 15.5% linear" they will come up.


Minimally exploiting aggressive c-betting in 3-bet pots



One of the more notable elements of GTO solution strategies in 3-bet pots is that on A high boards the 3-bettor often has a very low c-bet frequency and takes a much more passive approach to the hand than many regulars usually take.

One GTORB user was particularly surprised by a SB vs BTN 3-bet scenario where the SB 3-bet 15.8%, the BTN defended 18.3%.  On a A54r flop the SB only was c-betting 13.6% of the time for a 62% pot c-bet, even in a version of the scenario where the BTN was not allowed to raise a c-bet with a small sizing (which should favor c-betting more, not less).

Of course as poker players, we care about EV, not frequency, so this raises the question, how much EV would one lose by adopting a more aggressive c-betting frequency in this type of spot if your opponent were to minimally exploit you?  It turns out the EV loss for c-betting 63% here is around 35bb/100 which is about 35 times the nash distance.  

The relevant solutions are here:
C-betting to aggressively on A high boards is one of the more common leaks that many regulars have and this is a good simple example illustrating that even an opponent who will never attack you with bluff raises can still substantially exploit this approach.  If a non-all in raise against a c-bet were allowed the amount of potential exploitation would only increase.

I believe that the addition of minimally exploitative calculations opens up many new avenues of study for using GTO computations to analytically improve your poker game and I leverage minimally exploitative calculations heavily myself.


That's it for today, thanks as always to our community for coming up with quality scenarios for study.  For those of you who may have missed it the previous library highlights post is here: http://blog.gtorangebuilder.com/2015/04/gtorb-flop-library-highlights-1.html

Tuesday, June 30, 2015

July Asuth Strategy Pack Sale

For the month of July if you purchase our new In Position C-Betting Strategy Pack from the GTO Dojo you can get 50% either my GTO Flop C-bet defense strategy pack or my GTO Play in 3-bet Pots strategy pack. Just purchase both packs at the regular price via paypal and email gtorangebuilder@gmail.com and we will refund $50 of your purchase within 24 hours.


 You can check out the preview for the In Position C-betting Strategy pack in the GTO Dojo.


Thursday, June 25, 2015

New C-betting Strategy Pack Available in the GTO Dojo

I'm very excited to announce the release of my first strategy pack on c-betting which focuses on c-betting after raising from in position and getting called by an out of position player. The second half of this strategy pack has a lot of material that I don't think has been explored by anyone else before because it focuses heavily on using minimally exploitative calculations to identify and measure leaks in c-betting strategies. I also demonstrate how different board textures allow for different levels of flexibility to c-bet exploitative without fear of counter exploitation.

 This pack features over 30 GTO and exploitative flop solutions that are carefully constructed and over two hours of video analysis. The first ~7 minutes are available on youtube for free, you can check it out below.


Wednesday, June 10, 2015

GTORB in Ivey League Session Review

One of the easiest ways to use GTORB to improve your play is to compare GTORB resutls against actual hands from your recent sessions during post session review. Ivey League pro "The Student" recently released a training video on how GTORB can best be used for session review in his latest training video here: http://iveyleague.com/video/micro-stakes-session-review

Friday, June 5, 2015

New GTO Strategy Pack Release -- GTO Postflop Play in HUSNGs ft. Coffeeyay from HUSNG.com

Our latest GTO strategy pack was created in conjunction with HUSNG.com and their lead coach Coffeeyay.  This strategy pack focuses on postflop play both in limped and raised pots with 20-25 BB stacks.  We were able to work with Will Tipton to get the exact preflop ranges that were used to generate the charts in his book and these scenarios all use a smoothed version of those ranges.

HUSNGs are on of the game types where directly applying GTO computational solutions to improve your play is easiest and most effective and this video pack should give you insight into how one of the top coaches in the HUSNG communities leverages GTORB solutions to construct stronger ranges and win more money.

You can check out a sample segment from the strategy pack in the preview video below.



Saturday, May 9, 2015

Get access to the GTORB Flop Library for just $20 with the new GTORB Library Pass

Yesterday we launched a new purchase option, the GTORB Library Pass which gives full access to browse our flop solution library and discuss solutions with other users for just $20 per month (with our 50% launch sale).  Our flop solution library currently has almost 500 flop solutions with more being added every day, for some highlights from the library see this post: http://blog.gtorangebuilder.com/2015/04/gtorb-flop-library-highlights-1.html





You can also check out our 3 free library solutions without making a GTORB account in our GTO Dojo here: http://gtorangebuilder.com/#gto-dojo to get an idea of what a GTORB flop solution looks like.  Just click the "View the GTORangeBuilder Flop Library" button and the free solutions will be right at the top with the "free" tag.

With hundreds of GTO flop solutions instantly available at your fingertips for just $20 the library pass is an incredibly effective way to study GTO play at a great price.