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25x25 Sudoku Book

Welcome to this fantastic collection of 100 ENORMOUS sudoku puzzles, in a large 25x25 grid size. If you're a fan of traditional 9x9 sudoku but need an extra challenge, look no further. Perhaps you've already advanced to 12x12 but need something a little more testing? If you still feel you can go bigger and better- this is the book for you!

This book is guaranteed to bring hours and hours of mind-boggling fun. Each puzzle requires your very best puzzle solving skills to crack. With 100 puzzles to keep you busy, we are sure this collection will bring you a huge amount of fun.

Place each number from 1 to 25 exactly once in each row, column and 5x5 bold-lined box. You'll never need to guess when solving these puzzles, and they each have a unique solution. Can you solve them all? Click the sample link below to see how you get on and let us know! We love to hear from you.

Full solutions are listed towards the back of the book so if you get stuck along the way- take a peek there!

All of our puzzle books are printed on very high quality paper, making the puzzle experience all the more enjoyable! Please do let us know what you thought of this large grid size. We want your feedback!

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

25x25 sudoku sample

The book of large sudoku is available to purchase right now 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.
25x25 sudoku cover

25x25 sudoku interior


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For individuals with comments, questions or ideas with regard to our puzzle books, or if you would like to request a personalised version of any book (eg Daniel's Book of Sudoku) then please use this Contact Form to drop us a line.

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