Hard Sandwich Sudoku Puzzles

Download free printable hard sandwich sudoku puzzles. Logic puzzles are a fun way to exercise your brain, get better at solving problems, and keep yourself entertained. Perfect for offline play. Download, print and start solving using a pen or pencil.

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How to Play

  • Grid Size: The puzzle has 9x9 grid size made up of three 3x3 sub-grids.
  • Numbers: Each row, column, and 3x3 box must contain the digits 1 through 9.
  • No Repeats: Numbers in each row, columns and diagonals should appear only once without repetition.
  • Sandwich Clue: A number is placed outside each row and column. This number represents the sum of the digits between the 1 and 9 in that row or column.

Need Help?

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