Extreme Twodoku Puzzles

Download free printable extreme level Twodoku (Double Sudoku) puzzles with our printable collection. Improve your thinking with these tricky number puzzles. Print your copy now and start solving.

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Basic Rules / How to Play

  • Two Grids: The puzzle consists of two 9x9 Sudoku grids that partially overlap.
  • Numbers Placement: Each row, column, and 3x3 sub-grid (box) must contain all digits from 1 to 9 without repetition.
  • Overlapping Region: The area where the two grids overlap (usually the middle 3x3 part) must follow the rules of both grids at the same time.

Need Help?

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