What variants of outside sudoku are there?
We provide outside sudoku puzzles that not only have addition regions around the outside, but also with subtraction regions, division regions and multiplication too.
That said we've never seen anything other than addition outside sudoku elsewhere and this remains a very rarely seen variant puzzle, which is a shame - as tehy are great fun and once you get going they don't always take too long to solve, but being something different can be a particularly satisfying solve!
Most popular questions in puzzle category:
How do you solve outside sudoku puzzles?
There are various strategies that can be used to solve...
Any advanced solving tips for outside sudoku?
Well, one thing that might not be immediately obvious is...
What is outside sudoku?
Outside sudoku is a puzzle that you won't come across too...
View a list of puzzles for publication with pictures of each.
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