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Supreme Sudoku 15x15 Puzzle Book

Welcome to this superb collection of 100 brand new 15 x 15 sudoku puzzles.

15 x 15 sudoku puzzles work just the same as regular 9 x 9 sudoku puzzles, but on a larger scale! Infact whereas a normal sudoku has 81 squares in it, a 15x15 sudoku has 225 squares in it.

Here are the rules of 15 x 15 sudoku:

- Place each number from 1 - 15 exactly once in each row, column and 5 x 3 bold-lined box that compose the grid.

That's all there is to it!

If you would like to try a few of the puzzles before buying this book, please click the link below:

Supreme Sudoku Sample

The book is available to purchase from Amazon.co.uk, Amazon.com and Amazon.eu. Please click the relevant link below to purchase this book via Amazon:

If you're based in Europe but outside the UK, then this book is also available on the version of Amazon in your country.

15 x 15 Sudoku Questions

What strategies are required to solve these puzzles?

With our 15x15 sudoku puzzles, you will just need the standard sudoku solving logic: looking at possible values for a square and also where each number can be placed within a region. Thus if there is only one square that can contain the 15 within a region, then you know it must be placed there.

Each puzzle can be solved through the above two rules, so you won't need to do anything like look at sets which gets pretty tricky when there are 15 numbers to take into account in each and every region of the 45 regions in the puzzle grid.

Can I try before I buy?

Most certainly you can! Please click the link above to the samples, and print and play. Print at 100% to see the size of the puzzle on the page too. The books come printed on high quality white paper so are ideal for puzzle solving.

What other large sudoku puzzles are available?

We have a large and expanding range as we hope to offer an unparalleled choice of different sized sudoku grids to puzzling fans all over the world who often struggle to find books containing just the puzzle that they are interested in. Therefore please browse the site via the links to the left and choose from sudoku that are very small at 4x4 right up to very large at 25x25; choose from single puzzle collections right up to puzzles containing 13-grids overlapping!

Supreme Sudoku

Supreme Sudoku Interior

How to Solve Futoshiki Puzzles

In our new series of videos, you can learn about new puzzle types and take part in quizzes. Why not have a watch?

In this video we look at the rules of futoshiki and how they work. We examine the greater than and less than signs that are the key addition to standard sudoku rules. Take a look if you're tempted to have a go at this puzzle type...

If you are a publisher looking to purchase puzzles for publication, or a license to use material from our books, please use this Contact Form to get in touch.

For individuals with comments, questions or ideas with regard to our puzzle books, then please use this Contact Form to drop us a line.

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