rs-poker

RS Poker is a rust library aimed at being a good starting place for lots of poker rust code. Correctness and performance are the two main goals.

Documentation is uploaded here The crates.io page is here

Core

The Core module contains code that is not specific to different types of poker games. It contains:

• Suit type
• Value type
• Card type
• Deck
• Hand iteration
• Poker hand rank type
• Poker hand evaluation for five card hands.
• Poker hand evaluation for seven card hands.
• PlayerBitSet suitable for keeping track of boolean values on a table.

The poker hand (5 card) evaluation will rank a hand in ~20 nanoseconds per hand. That means that 50 Million hands per second can be ranked. The seven card hand evaluation will rank a hand in < 25 ns.

The hand evaluation is is fully accurate, it does not rely on just single kicker. This allows for breaking ties on hands that are closer.

Holdem

The holdem module contains code that is specific to holdem. It currently contains:

• Starting hand enumeration
• Hand range parsing
• Monte Carlo game simulation helpers.

Arena

Arena is currently a beta feature. There are no planned breaking changes, but additions are expected.

Arena is a feature that allows creating agents that play a simulated Texas Holdem poker game; these autonomous agent vs agent games are great for determining strength of automated strategies. Additionally agent vs agent arenas are a good way of playing lots of GTO poker quickly.

• Holdem simulation struct for overall status of the simulation
• Game state for the state of the current game
• Agent trait that can be implemented to create your own poker agent.
• A few example Agents.

Testing

The code is pretty well tested and benchmarked. If you find something that looks like a bug please submit a pr with test code.

5 Card + Hand iteration has been used in conjunction with fuzzing to validate the seven card hand evaluation.