Livesudoku.seanoliver.dev
Sudoku
A calm, free Sudoku that teaches every technique one move at a time. Hints explain themselves step by step, and it installs to your home screen and works offline. No account, ads, or analytics.
- 09 29 2026refuse crossing out a cell's answer
- 09 29 2026Undo and Redo beside Erase
- 09 28 20263 × 3 number grid