Sudoku
↗Clear your head and fill the grid. Every row, column and box needs all nine numbers.
Greater than, less than, one solution. Follow the inequalities to finish the grid.
Your goalFill every row and column with 1–4 and satisfy all inequalities.
ControlsTap a blank cell and type a whole digit from 1 to 4.
Rules & scoringEach row and column contains every digit exactly once. The inequalities are listed below the board, and the given digits cannot change.
Choose New game to restart. Your active board resets on refresh.
Use the controls above to start a fresh round. Your device handles the game; no account, payment or download is needed. Rules and supported modes are shown in the game itself.
Progress rewards belong to this browser. Closing or refreshing a page starts a fresh game unless a game explicitly offers a saved state.
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