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Book Sudoku X

    Book Details:
  • Author : Christopher Monckton
  • Publisher : Justin, Charles & Co.
  • Release : 2005-10-25
  • ISBN : 1932112456
  • Pages : 161 pages

Download or read book Sudoku X written by Christopher Monckton and published by Justin, Charles & Co.. This book was released on 2005-10-25 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sudoku is the new number puzzle craze sweeping the nation, and Sudoku X is the only puzzle collection to add diagonal play to the Sudoku formula.

Book USA TODAY Sudoku X and Mini Sudoku

Download or read book USA TODAY Sudoku X and Mini Sudoku written by USA Today and published by Andrews McMeel Publishing. This book was released on 2007-05 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: You can be sitting in the train working a puzzle but it can take you far away from the everyday. Before you know it you're at your stop or about to pass it. It's not like you were even in the train. It's something different, something removed from the ordinary." --Maki Kaji, The Japanese Times The Nation's No. 1 Newspaper offers puzzle-smiths the ultimate book featuring a new collection of challenging conundrums. Sudoku X uses the familiar 9 x 9 grid, but includes an additional "X" space to solve, while Mini Sudoku offers a 6 x 6 grid that's perfect for early morning coffee or as an afternoon energizer.

Book 250 Easy to Medium Sudoku X 9x9

    Book Details:
  • Author : James Forest
  • Publisher : Independently Published
  • Release : 2019-01-09
  • ISBN : 9781731217608
  • Pages : 146 pages

Download or read book 250 Easy to Medium Sudoku X 9x9 written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book The Big Book of Sudoku Red

Download or read book The Big Book of Sudoku Red written by Parragon Books and published by Parragon Books. This book was released on 2018-09-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: You don't need to be a math whiz to enjoy a great sudoku puzzle! Sharpen your mind and have some fun with this great collection of sudokus, including over 540 challenges across four difficulty levels (Warm-Up, Challenging, Tough, and the ultimate Samurai Sudoku!) A must-have for all Sudoku enthusiasts. OVER 500 PUZZLES & SOLUTIONS: Hours of fun and entertainment to enjoy! VARIETY OF LEVELS: From levels 1 to 3 increasing levels of difficulty including Warm Up, Challenging and Tough. When you are done, test your skills on the ultimate Samurai Sudoku Puzzle - 5 puzzles linked together by a central puzzle! Can you become a master samurai? LAY FLAT: Spiral-bound lays flat for ease of use at home or on the go. Whether your drinking your morning coffee, riding on the train or relaxing on vacation this sudoku book can go with you. MAKES A GREAT GIFT: For the sudoku puzzle lover, this books makes a great gift for any occasion! Birthday, stocking suffers, road trip or more, everyone will love it! BRAIN BUSTERS(TM) Part of the Brain Busters Puzzle Collection from Parragon & Cottage Door Press. Look for other books including word finds, crosswords, picture puzzles, and more.

Book 250 Medium Sudoku X 9x9

    Book Details:
  • Author : James Forest
  • Publisher : Independently Published
  • Release : 2019-01-09
  • ISBN : 9781731141804
  • Pages : 146 pages

Download or read book 250 Medium Sudoku X 9x9 written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book Sudoku Variants

    Book Details:
  • Author : Conceptis Puzzles
  • Publisher : Sterling Publishing Company, Inc.
  • Release : 2006-08
  • ISBN : 9781402741111
  • Pages : 154 pages

Download or read book Sudoku Variants written by Conceptis Puzzles and published by Sterling Publishing Company, Inc.. This book was released on 2006-08 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Everyone knows sudoku is enjoyable--but these addictive puzzles come in endless variations too! They range from simple to very difficult, and can take almost no time to finish...or require many hours. This entertaining collection showcases a wide range of possibilities, offering solvers who have become accustomed to the standard rules and grids an exciting new challenge. Select from Mega Sudokus that provide a real workout; Diagonals or Odd and Even versions with extra constraints; Sum Sudokus that merge with kakuro; and Multisudoku with overlapping puzzles. There's something for every level--12 x 12 puzzles, ones with irregularly shaped areas, even Mini Sudoku--and lots of fun for everyone.

Book 250 Easy Sudoku X 9x9

    Book Details:
  • Author : James Forest
  • Publisher : Independently Published
  • Release : 2019-01-09
  • ISBN : 9781731141750
  • Pages : 146 pages

Download or read book 250 Easy Sudoku X 9x9 written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book 250 Medium to Hard Sudoku X 9x9

    Book Details:
  • Author : James Forest
  • Publisher : Independently Published
  • Release : 2019-01-09
  • ISBN : 9781731217790
  • Pages : 146 pages

Download or read book 250 Medium to Hard Sudoku X 9x9 written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book Extra Large Print Sudoku Medium

    Book Details:
  • Author : Panda Puzzle Book
  • Publisher : Independently Published
  • Release : 2019-06-30
  • ISBN : 9781077227514
  • Pages : 130 pages

Download or read book Extra Large Print Sudoku Medium written by Panda Puzzle Book and published by Independently Published. This book was released on 2019-06-30 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the book that contains Sudoku medium puzzles in very large print. The perfect gift for any Granma and Grandad. All of the puzzles inside the book are 9x9 in medium difficulty.This Sudoku puzzles specifically designed for Seniors. Sudoku rules are very easy. Each number 1,2,3,4,5,6.7,8 and 9 must appear only once in each row, column, and region. Complete this puzzle so that every row across, every column down and every region contains the numbers 1 to 9. Each row and each column have only one and exactly one of each of the numbers 1,2,3,4,5,6,7,8,9 Sudoku puzzles are a proven method for enhancing logic skills. As a logic puzzle, Sudoku is also a great brain game. If you play Sudoku everyday, you'll soon begin to see improvements within your concentration and overall brain power. You could reduce your probabilities of Dementia or Alzheimer's simply by solving Sudoku puzzles. By using this selection of sudoku puzzle books you would experience enhanced brain capabilities for example focus, logical thinking and memory. 100 classic sudoku medium puzzles in very large print Sudoku puzzles grid size in the book are 9x9 that are played with nine number 1,2,3,4,5,6,7,8,9 Large print sudoku puzzles. Sudoku grids are large, very easy to read, and fill out. Large and Easy To Read Font Every single puzzle is spread out on one full page, solving could be easy on your eyes An answer key for those sudoku puzzle Puzzles are printed on high quality white paper, size 8,5 x 11 inches A simple instructions for beginners Choose your book today by clicking on the BUY NOW button at the top of this page.

Book 250 Easy to Medium Sudoku X 8x8  Sudoku Puzzle Book for Adults

Download or read book 250 Easy to Medium Sudoku X 8x8 Sudoku Puzzle Book for Adults written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book Sudoku X Puzzle Book

    Book Details:
  • Author : Khalid Alzamili
  • Publisher :
  • Release : 2019-10-10
  • ISBN : 9781698922140
  • Pages : 130 pages

Download or read book Sudoku X Puzzle Book written by Khalid Alzamili and published by . This book was released on 2019-10-10 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of Sudoku X is to fill every row, column, diagonal and box (3x3grid) with numbers 1-9 and each row, column, and box must have each number exactly once. This Sudoku book is packed with the following features: 500 Easy to Hard Sudoku X Puzzles Answers to every puzzle are provided at the back of the book. Each puzzle is guaranteed to have only one solution. Includes free bonus puzzles you can download book (Tons of Sudoku Puzzles for Adults & Seniors) Includes free bonus puzzles you can download book (Word Search With Hidden Message: 102 Puzzles for Adults and Seniors) SUDOKU X Puzzle Book is a collection of 500 sudoku puzzles. Part of the popular "Brain Games for Adults" series, the book is designed to help keep your brain cognitively fit, flexible, and young. SUDOKU X Puzzle Book are sorted into three levels of difficulty (easy, medium and hard).

Book 250 Medium to Hard Sudoku X 8x8

    Book Details:
  • Author : James Forest
  • Publisher : Independently Published
  • Release : 2019-01-09
  • ISBN : 9781731141620
  • Pages : 146 pages

Download or read book 250 Medium to Hard Sudoku X 8x8 written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book 250 Hard Sudoku X 9x9

    Book Details:
  • Author : James Forest
  • Publisher : Independently Published
  • Release : 2019-01-09
  • ISBN : 9781731141873
  • Pages : 146 pages

Download or read book 250 Hard Sudoku X 9x9 written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book 250 Hard Sudoku X 8x8

    Book Details:
  • Author : James Forest
  • Publisher : Independently Published
  • Release : 2019-01-09
  • ISBN : 9781731141484
  • Pages : 146 pages

Download or read book 250 Hard Sudoku X 8x8 written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book 250 Easy to Medium Sudoku X 6x6

    Book Details:
  • Author : James Forest
  • Publisher : Independently Published
  • Release : 2019-01-09
  • ISBN : 9781731141002
  • Pages : 146 pages

Download or read book 250 Easy to Medium Sudoku X 6x6 written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book 250 Medium to Hard Sudoku X 6x6

    Book Details:
  • Author : James Forest
  • Publisher : Independently Published
  • Release : 2019-01-09
  • ISBN : 9781731141064
  • Pages : 146 pages

Download or read book 250 Medium to Hard Sudoku X 6x6 written by James Forest and published by Independently Published. This book was released on 2019-01-09 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sometimes classic also means superior. Sudoku X is a favorite pastime of many people the whole world over. In the years since the puzzles first reached monumental popularity, many puzzle makers have tried to experiment with and push the genre forward, crafting puzzles that are different and unique and that redefine what a sudoku puzzle can be. Among sudoku puzzle books, you will find plenty of variety, plenty of Sudoku X books for adults that you can turn to for a fresh experience. Sometimes, however, you just want the Sudoku X puzzle, something reminiscent of the sudoku puzzles you first did when you were falling in love with sudoku itself. What's wrong with the classics, right? If you are someone who has looked back fondly on the sudoku puzzles of years gone by, then Sudoku X Puzzles is the sudoku book for you. You can look back on all the wonderful hours you have spent playing the sudoku puzzles that you enjoy the most, the ones that are not quite simple but that are also never convoluted. The Sudoku X puzzles that you enjoy are the ones that don't feel the need to distract you with flair or fireworks. You want sudoku puzzles that are comfortable with their own straightforwardness! We are right there with you, right there filling in numbers, right there plotting out moves, and we want you to know that we have created this book because we share your passion for great Sudoku X puzzles. This is the Sudoku X puzzle book you have been searching for, a true-blue classic filled with new puzzles. Get solving! The handy size means you can carry your book wherever you roam. Puzzles are pre-checked to eliminate error potential. Other names that are searched for Sudoku: soduko, suduko.

Book Sudoku X   120 Easy To Master Puzzles 6x6   8

Download or read book Sudoku X 120 Easy To Master Puzzles 6x6 8 written by John Collins and published by . This book was released on 2020-01-10 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sudoku X also called Diagonal Sudoku.The puzzle is a 6x6 grid made up of 3x2 subgrids (called "regions").Some cells already contain numbers, known as "givens".The goal is to fill in the empty cells, one number in each, so that each column, row, region and diagonal contains the numbers 1 through 6 exactly once.Each number in the solution therefore occurs only once in each of three "directions", hence the "single numbers" implied by the puzzle's name.