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Featured Puzzle: Sukaku #1

ByJacob Valdez

Sukaku is an interesting variant of Sudoku. Rather than the standard format of revealing a few known numbers, you are instead given pencilmarks. As a matter of fact, another name for this puzzle is Pencilmark Sudoku. Otherwise, normal Sudoku rules apply. Fill the grid with 1-9 in such a way that no row, column, or 3×3 region contains a duplicate.

While I don’t yet have a tutorial specific to Sukaku, you can use many of the same techniques from a normal Sudoku puzzle. See our Sudoku Solving Guide.

Want to try it online? Click here!

The completed grid. I hope you enjoyed it!

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