Thu, 30 Nov 2023
View our latest book releases for 2023!

Popular Puzzle Book Recommendations:

 Crime Logic Puzzles Codeword a Day 2024 Arrow Word Puzzles Grandad's Crosswords

Toroidal Sudoku is one of the more unusual variants of sudoku out there, and may be unfamiliar to many. Therefore it is ideal if you are looking for a puzzle that is a little novel or different for your publication, and particularly if you are looking for something tricky as a competition puzzle - the unusual region shapes in a toroidal sudoku grid can make the puzzle hard for humans to solve.

The basics of toroidal sudoku are the same - the rows and columns must contain the numbers specified once and once only, but the twist is the standard box shapes are changed. This is akin to jigsaw sudoku, but toroidal sudoku takes it one dastardly step further: these regions can wrap around the top, bottom, left and right of the puzzle, and therefore a keen eye is required to solve this fun variant puzzle.

You can see in the image to the right that here there are nine coloured regions, and several of these wrap around the edges of the grid. For instance, the second and third squares in the grid are part of the region containing the given '2' in column one.

We use colour where available to help the eye distinguish the regions, but also use the thickness of the border to demarcate the regions. You'll notice that where regions wrap around the edge of the grid, there is no border in the direction of the wrap.

We supply 6x6 and 9x9 toroidal sudoku puzzles, in PDF format or another format if required. If you'd like to try before you buy, then here is a link where you can play the puzzle above online using our online toroidal sudoku player.

We can supply an order of toroidal sudoku any size with quick turnaround times and meet any bespoke requirements. All puzzles have a single solution that can be reached through logical rules alone, no guessing is ever required to solve our toroidal sudoku puzzles.

The video below outlines the rules of toroidal sudoku puzzles:

What to do next...

Individuals - You can play a large range of logic and number puzzles online at the Puzzle Connoisseur's Club

Puzzle Solutions
i Newspaper Solutions
Children's Puzzle Solutions

View a single page overview
List of puzzles

List of kids puzzles

View content such as dot to dots, adult colouring and more available to license for print right now

Word Puzzles
Children's Puzzles
Wordsearch
CodeWords
Arrow words
Kriss Kross
Word Wheel

Number & Colouring Puzzles
Children's Sudoku
Samurai Sudoku
Jigsaw Sudoku
Futoshiki
Mind Games
Killer Sudoku
Kakuro
Chess Puzzles
A - Z of Puzzles
Colour By Number
Dot To Dot

Puzzle Tools
Puzzle FAQ
Codeword Solver
Rhyming Dictionary
Puzzle Solving Tools
Solving Videos

Services
Puzzles for Apps
Article Writing
Themed Puzzle Pages