Free daily
Large-Print
Sudoku
Two fresh sudoku puzzles every day -- a full 9x9 and a quick 4x4 mini. Large print, browser-based, with undo and note-taking built in.
Features
Built for serious puzzlers
Undo anytime
Made a mistake? Hit Undo (or Cmd+Z) to step back through your last 50 moves.
Pencil notes
Switch to pencil mode to jot candidate numbers in any cell without committing.
Progress saved
Close the tab and pick up exactly where you left off. No account needed.
Two sizes
The 9x9 classic for a full challenge. The 4x4 mini when you want a quick win.
Large print
Big cells, clear numbers. Designed for comfort whether you're on desktop or tablet.
Daily streak
Sign in to track your solving streak and earn achievements as you improve.
Today's sudoku is live
A fresh puzzle drops at midnight GMT every day.