Printable Sudoku
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Special Variations
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Play / Solve
Hard Sujiken Puzzles
Tough Sujiken puzzles for serious solvers. Download and print these challenging brainteasers to improve your logic and problem-solving skills. Perfect for puzzle lovers who want a fun challenge.
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Sujiken - Hard - 5
Sujiken - Hard - 4
Sujiken - Hard - 3
Sujiken - Hard - 2
Sujiken - Hard - 1
Sujiken - Hard - 7
Sujiken - Hard - 10
Sujiken - Hard - 8
Sujiken - Hard - 9
Sujiken - Hard - 6
Basic Rules / How to Play
- Fill the Grid: Fill each empty cell in the triangular grid with a digit from 1 to 9. The numbers used depend on the size of the grid. For example: A Sujiken puzzle with 6 rows might use the numbers 1 through 6.
- No Repetition in Rows: No digit can appear more than once in any row of the grid.
- No Repetition in Columns: No digit can appear more than once in any column of the grid.
- No Repetition in Diagonals: No digit can appear more than once along any diagonal line within the grid.
- No Repetition in Regions: The grid is divided into three triangular regions by bold lines. No digit can appear more than once within any of these regions.
Need Help?
To get started, check out these detailed instructions, goals and rules for how to solve Sujiken puzzles









