otter-crew — Writing

No flat vocab table - factored additive embeddings built from poker primitives, and bet sizes fed as floats instead of bucketed tokens

Mask the hidden cards, translate the public betting record into a belief over 1,326 combos, and re-read the range at every street

Machine learning starts with a dataset.

CFRAgent - budget-driven exploration, regret-based pruning, and board enumeration, wired into the arena

CFR needs a huge self-referential, multi-threaded game tree - the memory-arena design behind CFRState

A small crate for a big idea: regret matching, CFR+, and the discounted and predictive variants - the numeric core every solver shares

Counterfactual regret minimization from zero - how tracking what you wish you'd done converges to unexploitable poker

Inside rs-poker's arena - the game state machine, the Agent trait, historians, side pots, invariant-checked fuzzing, and the tournament that crowned a bot

The perfect-hash hand evaluator - how rs-poker ranks poker hands in less than a nanosecond

Ten years of representing cards, hands, and decks in Rust - from Vec to bitsets, and why representation sets your speed ceiling

There is no open source engine for multiway no-limit hold'em.

rs-poker v5.0.0 releases with async RL arena, a state-of-the-art CFR agent, and an `rsp` CLI

Welcome, lets discuss what Otter Crew is, and what we're about.