Sudoku
Measures logical deduction. Fill every row, column and 3×3 box with 1–9, each exactly once, then press Submit. Only a fully correct grid counts.
⏱ 3–8 minRanked by time · lower is better
World record
—
Be the first
Your best
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Set a name to track
Runs recorded
0
across all players
Before you start
Who's being measured?
Add a name to put your result on the leaderboard and into your capability profile. No account, no email.