Poker Face
Poker Face combines a plain-language hold'em trainer with audited solver labs. The trainer
teaches poker fundamentals; the labs solve small, explicitly defined games and independently
measure how much each player could gain by changing strategy.
Live app: pokerface.katswint.com.
For a solver-first tour, open /solver/flop for six saved three-street games,
/solver/postflop for turn-to-river examples with raises, or
/solver/river for small custom river solves. /drills has timed poker-math practice;
/drills?drill=solver asks for decisions from the saved 12-flop bridge library.
Open these locally or on a deployment containing those routes.
Current state
Repository status as of 2026-09-30 (not a deployment verification): the river lab and
comparisons, bounded TypeScript turn/flop solvers and saved explorers, and an offline bridge
to the external Rust postflop-solver engine are implemented. The bridge adds wide-range
CPU solves, checked on small games by our independent graders, and a saved 12-flop 100bb
library now used by solver-backed drills. Math drills also work without that library.
The solvers remain separate from the heuristic four-player trainer.
A new simplified preflop model is research only: it converges within its assumed
payoff model, but its near-100% big-blind defence and future-betting valuation need further
validation. Its ranges are not used in the library or app. /solver/live now provides
bounded Rust/WASM turn and river solving in a Worker when its source-complete assets are
prepared; without those assets it still offers a saved example. Heads-up re-solving play
remains unfinished: /play is not shipped.
| Experience | What is implemented | Important boundary |
|---|
/ — hold'em trainer | Observe or practice four-player hands, with worker-backed equity and price explanations | Heuristic strategy; exact heads-up river equity, sampled equity elsewhere; not an equilibrium solver |
/drills — math and solver drills | Exact-arithmetic drills plus saved-solver decisions, action values, explanations and a browser-stored review queue | Math shortcuts are labelled approximate; solver grades concern a finite game with assumed ranges, not universal poker advice |
/solver — push/fold explorer | Instant precomputed heads-up shove-or-fold charts from an exact equity matrix, with card removal | Shove-or-fold abstraction only (chip EV, no antes); one frequency per hand class |
/solver/lab — Leduc lab | Four lessons about mixing, value bets, bluffs, and bluff-catching | A six-card teaching game, not ordinary hold'em |
/solver/river — River Solver Lab | Saved example, bounded custom solves, decision inspection, and one-change comparisons | Two players, known final board, explicit ranges and finite bet menu |
/solver/postflop — turn & river explorer | Two instant saved examples, legal action navigation, river previews, hand values and conditional ranges | Three handcrafted combinations/player in these UI examples; no custom browser turn solve |
/solver/flop — three-street explorer | Six saved games, both public-card transitions, exact-hand values, range groups, source-bound links and downloadable inputs | Five small teaching ranges plus one synthetic 64-by-64 example; one opening size/street, no raises or custom browser flop solve |
| Offline turn-and-river solver | Joint two-street solve, configurable betting, exact river enumeration, independent grading, restartable checkpoints | Up to 64 combinations/player, three opening sizes, three raise targets, optional all-in and one raise per street; custom solves remain offline |
| Offline flop/turn/river solver | All three streets solved together, exact ordered runouts, independent grading, binary restart checkpoints; sequential cached library generation | One capped opening size per street, no raises; up to 64 physical combinations/player |
/solver/live — bounded Rust/WASM lab | Guided turn/river inputs, preflight, real progress/cancel, root inspection and a saved example | Live solving needs prepared source-complete assets; 64 hands/player, float32, conservative memory/export limits; phones not yet validated |
Math drills (/drills). Timed one-question drills for pot odds, minimum defence
frequency, polar bluff share, outs → equity, counting outs on a real flop, combo counting with
card removal, and call-or-fold. Answers are exact (formula or enumeration; unit tests check
each generator a second way, including the app's hand evaluator and full deck enumeration).
Explanations show the formula with your numbers and the at-table shortcut, and rules of thumb
are labelled approximate. Missed questions return through a Leitner review queue stored in
your browser. See the drills spec.
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