Chess, staged likea performance.

Play free in your browser — solo instantly, online with a quick sign-in.

World-class engine·Private & secure·Free to play·Works offline

Act I — The Engine

Solo · vs MateStorm

Ten strengths from first-timer to grandmaster, live evaluation, and honest move verdicts — brilliancies and blunders alike.

Free to play · no account needed

Act II — The Arena · Beta

Online · vs Anyone

Private rooms with friends, a live lobby of challengers, rated games and a leaderboard. In beta — you may hit the odd rough edge. Sign in to continue.

Blitz · Rapid · Classical · No clock

World-class engine

NNUE neural net, in your browser

Real analysis

every move judged

Live arenas

presence & challenges