Logic LabSudoku
Sudoku
Choose your challenge.
Easy
A gentle warm-up. Around 40 numbers pre-filled.
~5 minutesStart EasyMedium
A steady challenge. Around 30 numbers pre-filled.
~10 minutesStart MediumHard
For seasoned solvers. Around 24 numbers pre-filled.
~20 minutesStart Hard
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Your fastest Easy / Medium / Hard solves will appear here.