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Sudoku

Fill the grid so every row, column and 3×3 box contains 1–9 exactly once.

Pick a cell and enter a number (keys 1–9, ⌫/0 to erase, arrows to move) · Mistakes cost points

About this game

The definitive number logic puzzle: fill a 9×9 grid with 1–9. Every puzzle is solvable by logic alone, and the daily challenge brings a new one each day.

How to play

  1. Pick a cell, then enter a number with the buttons or keys 1–9.
  2. Each row, column and 3×3 box must contain 1–9 exactly once.
  3. Wrong entries cost points. Clear a cell with ⌫ or 0.
  4. Choose Easy, Medium or Hard.

Tips

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Add to Home Screen

  1. Tap the Share button at the bottom of the screen (top on iPad). It looks like a square with an arrow pointing up.
  2. Scroll down and tap "Add to Home Screen".
  3. Tap "Add" at the top right. The HTML6 Games icon appears on your home screen.

This works in Safari. Opened from the home screen, it runs without the address bar, like an app, and even offline.