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About Jigsaw Sudoku Puzzles

Jigsaw Sudoku Puzzle Rules

The rules of jigsaw sudoku are as follows:

Here is an image of the start position of a jigsaw sudoku puzzle:

Jigsaw Sudoku Puzzle

The rules of jigsaw sudoku are very simple, as with standard sudoku itself. However, jigsaw sudoku are generally trickier to solve than standard sudoku. This is partly because it is harder for the human eye to work with the wiggly, irregular-shaped regions that replace the orderly 3x3 boxes in standard sudoku puzzles. We often miss deductions that we would spot easily if the grid had its more familiar shape as per regular sudoku grids.

The beauty of jigsaw sudoku is that there are a huge range of different grid patterns possible, and many of these have a unique character of their own dictated by their geometry: whereas every sudoku grid is exactly the same, the pattern of a jigsaw sudoku varies from puzzle to puzzle and can have a large impact on how the puzzle solves.

Because of the irregular shaped nature of the regions, it is easy to see how the puzzle got its name jigsaw sudoku. It is also known as jigsawdoku, irregular sudoku and no doubt has various other names too. It is one of the more commonly seen sudoku variants that exist.

Play A Sample Jigsaw Sudoku Puzzle

If you'd like to have a go at solving the sample jigsaw sudoku shown above, then you can! Simply click this link to play it with our Online Jigsaw Sudoku Puzzle Player

Strategy and Solving Tips for Jigsaw Sudoku Puzzles

Here are a few strategy tips to help you solve these puzzles:

This video walks through the solve of the puzzle above using the strategies outlined above and more, so, if you've not already done so, you might like to give it a go before watching this video: