Short Deck Holdem (Command Line)

[TZubiri]

Short deck holdem seems to be gaining popularity, although it has been around since 2014 apparently, originating from China, and allowing for faster paced games.

There are 2 rule changes:

2,3,4,5 are removed.

Ace can make a lo straight with A,6,7,8,9

Omaha 6 card was kind of easy because apparently someone had already done most of the heavy work, the last centimeter was missing.

Removing some cards and replacing the straight from A2xxx to A6xxx should also be somewhat trivial, if hacking the software for my personal use, as I would probably just override the Holdem Evaluator. However adding shortdeck support to a build while maintaining traditional holdem, and ensuring no other formats break, will surely prove a harder challenge, (at least for me)

Worth noting that there's some variants where Flushes are worth more than full houses. (In some jurisdictions it's the only legal variant), but I'm sure that has support in custom evaluators. I believe it's the last parameter in the universalHandEvaluator.

Similarly GUI support will be a bit easier than a double Board Omaha, the easiest approach would probably be to black out 2,3,4,5 from the range and combo selector, or flat out removing those options completely. Although I'd say GUI support is probably not in scope, provided that even standard Omaha doesn't have it.