Sheetdoku
Fill each row, column, and section with clean values. Sudoku is a natural silent puzzle, and the spreadsheet styling makes it feel like data validation work.
Premise
Complete a number-validation worksheet by filling every row, column, and box with clean values.
Why it fits Bored Spreadsheet
Sudoku already looks like data validation; spreadsheet headers and restrained colors make the disguise feel natural.
Controls
Click a cell, type a number, use notes, hints, pause, and keyboard navigation.
Scoring and leaderboards
Scores reward difficulty, speed, few mistakes, and few hints.
Good for focused puzzle sessions and personal-best chasing.