One puzzle. A fresh excuse every day.
The daily challenge gives everyone the same memory puzzle on the same UTC date. Study the arrangement, rebuild it, and compare your result with friends.
A fair little daily ritual
The puzzle is generated deterministically for the current UTC date. It changes at midnight UTC, which may differ from midnight where you live. Retry to improve your best score on this browser.
A score, not a claim to world domination
Your best is stored locally on this device. There is no global leaderboard and no account. Share a short result summary without publishing a private room code. Clearing browser storage removes your saved local best.
Questions before you play
Why has the challenge changed before midnight here?
The daily challenge uses UTC so players in different countries share one challenge date.
Are shared scores verified?
Daily results are local personal results. Shared summaries are not a verified competitive ranking.
Create a room with friends · Try solo practice · Rules and controls