Sudoku Unblocked: Fill, Deduce, Solve

The classic number puzzle, ready whenever you have a few minutes. Sudoku needs no maths, just careful logic.

Gameplay

Fill the 9x9 grid so every row, every column and every 3x3 box contains the numbers 1 to 9 exactly once. Use notes to pencil in possible numbers, and use a hint if you get stuck. Pick Easy, Medium or Hard, or try the Daily puzzle that every player gets.

Highlights

• Three difficulty levels: from warm-up to brain-burner.
• Notes and hints: help without spoiling the puzzle.
• Daily puzzle: a fresh grid every day.

Sudoku Unblocked Online

This quick game comes from the NUBG Game Hub, so it loads fast and runs in any modern browser without a download.

Pick a difficulty and start solving.