Extreme Outside Sudoku Puzzles

Download free printable super hard Outside Sudoku puzzles. These extreme puzzles are for the most dedicated Sudoku enthusiasts. Use the clues outside the grid to solve these challenging logic puzzles. Download and print now!

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Rules / How to Play

  • Grid Size: he grid is typically 9x9, divided into 9 smaller 3x3 sub grids.
  • Unique Numbers: You must fill the 9x9 grid with digits from 1 to 9, ensuring that each row, column, and 3x3 subgrid (or "box") contains all digits from 1 to 9 without repetition.
  • Outside Clues: Numbers placed outside the grid indicate the first digit(s) in the corresponding row or column when reading from the direction of the clue. For example, a number "5" placed to the left of a row implies that the first cell in that row (from the left) contains the number 5.
  • No Inside Clues: Some Outside Sudoku puzzles may completely omit clues inside the grid, relying solely on the outside clues. However, other variations might include both internal and external clues.

Need Help?

To get started, check out these detailed instructions, goals and rules for how to solve Outside Sudoku