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Range vs range equity

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02-21-2017 , 12:50 PM

baalbaki1986

newbie

Join Date: Sep 2015 Posts: 46

I've started developing an app where I need to calculate the range vs range equity. So I implemented my hand evaluator and equity calculator but the equity calculations was taking too much time. So I've started using the 7 card evaluator of Klaatu ( https://wiki.csc.calpoly.edu/CPE-480...andeval/klaatu ). So know I want to know how to proceed from this point on to calculate range vs range calculation. Do I run a 10k simulations for each hand in range 1 vs each hand range 2? This should takes time even with the fast hand evaluator. If we are testing AA vs 22. Should I be testing every suit? 2s2h vs AsKh should give us same equity as 2c2d vs AcKd.

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02-21-2017 , 01:04 PM

RustyBrooks

Carpal \'Tunnel

Join Date: Feb 2006 Posts: 24,647

If you want to be 100% correct then the easy way is to test every combo

If you can (correctly) resolve the matchups into *completely* equivalent classes then you can simulate them once and weight by the number of equivalent matchups.

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02-25-2017 , 05:13 PM

aner0

Verified Coach NLHE

Join Date: Oct 2013 Posts: 3,671

I made a similar thing with Monte Carlo system that works perfectly, this means I pick random hands from both ranges in each iteration. And yes you test "every" suit(whichever suit it randomly picks).
With 100k+ iterations you will get a very good estimate

Last edited by aner0; 02-25-2017 at 05:24 PM.

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02-25-2017 , 06:02 PM

outfit

old hand

Join Date: Feb 2015 Posts: 1,396

Do you alternate who gets the first card? Or do you assume one player is IP and the other OOP?

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02-25-2017 , 06:35 PM

aner0

Verified Coach NLHE

Join Date: Oct 2013 Posts: 3,671

Quote:

Originally Posted by outfit

Do you alternate who gets the first card? Or do you assume one player is IP and the other OOP?

depends on the kind of analysys im trying to come up with.

i either give me first cards so i can account for my blockers and then give cards to villaisn in random order,
or i give everyone cards in random order to get the raw equity between ranges.

short answer yeah sometimes i alternate randomly

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02-25-2017 , 10:12 PM

reso8

newbie

Join Date: Feb 2017 Posts: 27

I found this when researching fast evaluators: https://github.com/zekyll/OMPEval

It's C++ but could still be useful for you.

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