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Deliberate reasoning

Sudoku

Stay with one logical problem. Use notes, work at your own pace, and leave when the puzzle is complete.

Time0:00

Wrong entries0

Creating a unique puzzle…

The rule

One of each.

Fill every row, column, and 3×3 box with the digits 1 through 9, without repeating a digit.

Useful controls

Select a cell, then choose a number.
Turn on Notes for small candidate marks.
Use Undo to reverse your last entry.

Progress for the current puzzle is saved on this device.

Uunrot

Train the opposite of distraction.

Methodology About Privacy Accessibility

Unrot is a practice tool, not a medical service or diagnostic test.