This one is a little more difficult than a traditional sudoku puzzle, the numbers 1-9 are still used in the same way but you will need to solve the first puzzle to get more clues for the second. A new puzzle is generated every 15 minutes, and should be solvable by beginners and experts alike.


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Sudoku rules

Only use the numbers 1-9

Each number 1-9 should only appear once in each line vertically and horizontally.

In the sub grids marked with bold lines the numbers 1-9 should appear here once too.

The yellow areas in the grid demonstrate this.

Don't forget where there is more than one grid the numbers still have to be unique in both.

Simple but great way to keep your brain working.

Download a free PDF file containing 18 unique double suduko puzzles, each download will contain a unique set of grids as no two books are the same.

There is no restriction on how many books you can download and each one contains the solutions to each puzzle and can be printed as many times as you want.

Whats the catch?

There isn't one, we don't even want your email address or any personal information before you download. Simply click on the link below and download a free ebook in PDF format of 18 double sudoku puzzles and solutions.

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