Arena

Every ladder rung is measured against the others on paired seeds. The matrix sums the recorded games; the runner plays new games in this browser with the same engine.

Run a match here

Red
Blue

Seeds count up from the one given; stronger players take seconds per game.

Head to head

Effective score of the row against the column over every recorded game, both seats together; a win counts one, a draw a half.

No recorded games yet.

Ladder

Games, wins, draws and losses over every registered game of September 18, 2026 (the 16-world depth-2 cell of the sweep counts for the expectimax rung) plus a 60-game random-expectimax pairing; Elo is a logistic fit over the pairwise effective scores with random anchored at 1000; rungs with zero games are unmeasured; built by scripts/build_second_pass_assets.py.
PlayerEloGamesScore
Expectimaxexpectimax153546075%71% to 79%
Greedygreedy139354057%53% to 61%
Rolloutrollout128310019%13% to 28%
Ataraxos smokeataraxos-smoke10908039%29% to 50%
Randomrandom100070034%30% to 37%

Unmeasured: N-tuple leaf.

Games, wins, draws and losses over every registered game of September 18, 2026 (the 16-world depth-2 cell of the sweep counts for the expectimax rung) plus a 60-game random-expectimax pairing; Elo is a logistic fit over the pairwise effective scores with random anchored at 1000; rungs with zero games are unmeasured; built by scripts/build_second_pass_assets.py.