Fill the grid so that every row, every column and every box holds each digit exactly once. Boards are generated fresh each time and always have a single solution, so nothing ever has to be guessed. Play a gentle four-by-four, a six, or the full nine.
The same walkthrough the table opens with — you can replay it in the game at any time.
Every row, every column and every outlined box has to hold each digit exactly once. The digits already printed are fixed.
Tap a cell, then a number — or use your keyboard. The eraser clears a cell, and the hint fills one in for you at the cost of a slip.
Turn on Notes and the digits you tap are written small, as candidates. It's the fastest way to keep track of a cell with two possible answers.
A cell in red repeats a digit already in its row, column or box. Every board has exactly one solution, so there is always a next step you can reason out.
Yes. Sudoku is free to play on PlayTable, and playing against the AI does not even need an account.
A browser. Sudoku runs on any modern phone, tablet or computer, and you can add PlayTable to your home screen if you want it to open like an app.
Yes. Sign in with your email, create a lobby, and share the six-character code or the invite link. Everyone plays from their own device, and the match is checked on the server so nobody can see a hand that is not theirs.
Yes — Sudoku opens with a guided tutorial on the real table that points at the real cards, and the steps above are that same walkthrough. It takes about two minutes.