Frame Jigsaw Sudoku

Here is another Frame Sudoku Sums puzzle, this time in Jigsaw Sudoku format! So, two distinct sudoku variants merged into one puzzle. Hard to find anywhere else but here, folks! 🙂 Let’s quickly recap the rules: the numbers outside of the grid tell you the sum of the 3 numbers closest to it. In a way this is similar to Outside Sudoku, but here you must process the sums of 3 numbers (always 3!), hence it is more a sudoku killer variant. The rest of the rules are standard rules of Irregular Sudoku Jigsaw. I tried not to make it too difficult this time… it’s only rated COOL. What do you think? Easier? More difficult? Just right? And would you prefer them more difficult than this?

Sum Frame Jigsaw Sudoku – difficulty COOL

(click to download or right-click to save the image!)

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To see the solution to this puzzle click here
PDF Version of this puzzle: Frame Jigsaw Sudoku Sums PDF COOL.
This entry was posted in General, Jigsaw Sudoku, Sudoku Variants and tagged , . Bookmark the permalink. Post a comment or leave a trackback: Trackback URL.


  1. Posted May 4, 2014 at 7:01 am | Permalink

    Good puzzle, about the right level of difficulty for a first one of this type. The answer is not unique: the last two rows in columns 3 and 9 can be transposed.

    • Posted May 6, 2014 at 1:59 am | Permalink

      David, thanks for your reply. Could you please check again if the corner sums are Ok in your other solution? I’m pretty sure they are not and that the puzzle has a unique answer! 🙂

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