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Sudoku Generator

Create a unique-solution 4×4 shape Sudoku or 9×9 number Sudoku with a deterministic answer grid.

Runs locally in your browser · A4 preview · Fixed seed · No registration

Help with Sudoku

Open verified guidance, or prepare a local problem report. Nothing is sent by this page.

Public diagnostics to include

Review or remove these before opening Contact. Worksheet content, names, answers, seeds, files and private input are never included.

1.0.0
/puzzles/sudoku
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