Welcome to sudoku-game.org!

We offer 3 sudoku types — classic sudoku, sudoku-diagonals and sudoku with extra zones. Each sudoku type can be played with numbers and letters.

5 difficulty levels:

  • «Very Easy» — 40 cells are opened and sudoku has the one solution;
  • «Easy» — 30 cells are opened and sudoku has the one solution;
  • «Normal» — 25 cells are opened and sudoku has the one solution;
  • «Hard» — 22 cells are opened and sudoku has the one solution;
  • «Very Hard» — 20 cells are opened and sudoku can have more than one solution.

* Different sudoku types can have different number of initially opened cells.

You can play:

  • with mouse —
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