Contact puzzlemix
Play free puzzles         Create free account         Instructions         Discussion forum         Log in    

Brained Up, daily online brain training site
daily online brain training
Cutting-edge brain training created by Dr Gareth Moore
Think faster, better,
and improve your mental capabilities

Sudoku Xtra, written by Dr Gareth Moore
Sudoku Xtra 24
logic puzzle compendium
Printed puzzles from Dr Gareth Moore

Killer Sudoku

Jigsaw Sudoku
Consecutive Sudoku
Kropki Sudoku
Sudoku XV
Oddpair Sudoku
Toroidal Sudoku
Killer Sudoku-X
Killer Sudoku

Jigsaw Killer

Looking for puzzles for your book, magazine or newspaper?

How to play Jigsaw Sudoku

The rules of Jigsaw Sudoku are similar to standard Sudoku, since you must place each of the numbers 1 to 9 (or 1 to whatever the size of the puzzle is) into each of the rows and columns. However whereas standard Sudoku also has rectangular boxes that must each contain every number, in Jigsaw Sudoku these boxes are replaced by different bold-lined shapes that must each contain every number instead.

In different-sized puzzles, place for example 1 to 6 into each region in 6x6 puzzles, and 1 to 9 and A to C into each region in 12x12 puzzles.

On puzzlemix each of these shapes is coloured a different shade so that you can see them clearly:

As an example of how these different-shaped region shapes work, look at the yellow shape in the middle. There are only two places a '4' can fit, as marked. Similarly in the light blue cyan shape on the right there are only two places a '3' can fit.

Continue to solve the puzzle using regular Sudoku logic, to reach the final result. When the puzzle is fully-solved you will have 1 to 9 in each row, column and bold-lined/coloured box as shown here:

Back to puzzle rules choice page

©Brained Up Ltd/Gareth Moore 2005-2021 - email - publishers please visit Any Puzzle Media - our privacy policy - registered in England & Wales no. 8642393