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Gridmote / hard mode

Hard Sudoku.

A deeper grid for when you want your attention fully occupied.

Free to play — no account, countdown, or payment required.

Around 18 minutesAccount-free play
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Your gridHard

How to play

No account needed
  1. Goal. Fill the grid so every row, column, and 3×3 box contains numbers 1–9 exactly once.
  2. Enter a number. Select an empty cell, then use the 1–9 controls below or press 1–9 on your keyboard.
  3. Check answers. Use Check answers to see whether the puzzle is complete and correct.
  4. Start over. Use Clear to remove an entry, or Reset grid to clear your entries and begin again.

Remaining

  1. 16
  2. 27
  3. 38
  4. 47
  5. 57
  6. 66
  7. 76
  8. 86
  9. 98
Select an empty square to enter a number.

Numbers 1–9 also work from your keyboard.