Dominoes
Play a full scored match, read public pass information, and learn when to shed pips, control an end, or score the table — locally, with no coins or wagering.
Advanced review, fixed benchmark & local backup
Decision Review & Repeatability Lab
Read your own public-state decisions without peeking at hidden tiles. Every claim below comes from the same local rules engine, visible chain, your own hand, or fully visible exact endgame positions.
V0.206 decision evidence remains scoped to classic 2-player Draw/Block public states. Multi-player and All Fives matches never pretend that legacy two-end evidence covers extra seats or spinner arms.
Make a local move to see pip shedding, legal-choice count, follow-up coverage and visible-chain evidence.
Complete a round to review your public-state decisions one by one.
Five families × four questions: legal ends, pip math, blocked finishes, exact minimax tile, exact minimax end. Exact minimax questions use fully visible Block endgames only.
Choose Fixed Benchmark or Adaptive Drill.
Clean-5 compares only your own five fixed runs. No population percentile, rating, IQ, diagnosis or global rank is inferred.
Decision Lab ready.
Double-six set. Two players receive seven tiles; three or four receive five. If you cannot play, draw from the boneyard until a match appears or it empties.
No drawing. A pass publicly proves that player lacked every currently open pip. Harder local bots remember those passes and use only public information plus their own hand.
The first double becomes the spinner. Once both long sides are filled, its two cross arms open. Live points are awarded when the exposed-end total is a multiple of five.
Round points accumulate locally. The prior round winner leads the next round with any tile. Daily keeps one deterministic two-player Draw match for the date.