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Book Sudoku

    Book Details:
  • Author : Matrix Puzzles
  • Publisher : Createspace Independent Publishing Platform
  • Release : 2017-12-13
  • ISBN : 9781981215737
  • Pages : 172 pages

Download or read book Sudoku written by Matrix Puzzles and published by Createspace Independent Publishing Platform. This book was released on 2017-12-13 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Become a Sudoku Master! Whatever Your Level, You'll Love This Sudoku Puzzle Book! This Book Features The Following: � 54 Easy Sudoku 9x9 Puzzles � 54 Medium Sudoku 9x9 Puzzles � 54 Hard Sudoku 9x9 Puzzles � 54 Very Hard Sudoku 9x9 Puzzles High quality symmetrical puzzles. Two puzzles per page, set out in a 5.25x8 inch format. Full solutions for all puzzles at the back of the book. Plenty of white space for number scribbling. High quality paperback, not magazine quality. The book is small in size but the numbers are printed in large font, easy to read. Every puzzle in this book has been carefully checked to ensure that each puzzle has only one possible solution. Lots of Fun! No Math Skills Needed! The Perfect Gift for All Ages! GET YOUR COPY NOW!

Book Sudoku 216 Very Easy to Hard Puzzles

    Book Details:
  • Author : Matrix Puzzles
  • Publisher : Createspace Independent Publishing Platform
  • Release : 2018-03-18
  • ISBN : 9781986609166
  • Pages : 172 pages

Download or read book Sudoku 216 Very Easy to Hard Puzzles written by Matrix Puzzles and published by Createspace Independent Publishing Platform. This book was released on 2018-03-18 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Become a Sudoku Master! Whatever Your Level, You'll Love This Sudoku Puzzle Book! This Book Features The Following: · 54 Very Easy Sudoku 9x9 Puzzles · 54 Easy Sudoku 9x9 Puzzles · 54 Medium Sudoku 9x9 Puzzles · 54 Hard Sudoku 9x9 Puzzles High quality symmetrical puzzles. Two puzzles per page, set out in a 5.25x8 inch format. Full solutions for all puzzles at the back of the book. Plenty of white space for number scribbling. High quality paperback, not magazine quality. The book is small in size but the numbers are printed in large font, easy to read. Every puzzle in this book has been carefully checked to ensure that each puzzle has only one possible solution. Lots of Fun! No Math Skills Needed! The Perfect Gift for All Ages! GET YOUR COPY NOW!

Book Sudoku

    Book Details:
  • Author : Matrix Puzzles
  • Publisher : Createspace Independent Publishing Platform
  • Release : 2017-12-13
  • ISBN : 9781981215355
  • Pages : 108 pages

Download or read book Sudoku written by Matrix Puzzles and published by Createspace Independent Publishing Platform. This book was released on 2017-12-13 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Become a Sudoku Master! Whatever Your Level, You'll Love This Sudoku Puzzle Book! This Book Features The Following: � 30 Easy Sudoku 9x9 Puzzles � 30 Medium Sudoku 9x9 Puzzles � 30 Hard Sudoku 9x9 Puzzles � 30 Very Hard Sudoku 9x9 Puzzles High quality symmetrical puzzles. Two puzzles per page, set out in a 5.25x8 inch format. Full solutions for all puzzles at the back of the book. Plenty of white space for number scribbling. High quality paperback, not magazine quality. The book is small in size but the numbers are printed in large font, easy to read. Every puzzle in this book has been carefully checked to ensure that each puzzle has only one possible solution. Lots of Fun! No Math Skills Needed! The Perfect Gift for All Ages! GET YOUR COPY NOW!

Book Sudoku

    Book Details:
  • Author : Matrix Puzzles
  • Publisher : Createspace Independent Publishing Platform
  • Release : 2017-12-13
  • ISBN : 9781981216062
  • Pages : 268 pages

Download or read book Sudoku written by Matrix Puzzles and published by Createspace Independent Publishing Platform. This book was released on 2017-12-13 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Become a Sudoku Master! Whatever Your Level, You'll Love This Sudoku Puzzle Book! This Book Features The Following: � 90 Easy Sudoku 9x9 Puzzles � 90 Medium Sudoku 9x9 Puzzles � 90 Hard Sudoku 9x9 Puzzles � 90 Very Hard Sudoku 9x9 Puzzles High quality symmetrical puzzles. Two puzzles per page, set out in a 5.25x8 inch format. Full solutions for all puzzles at the back of the book. Plenty of white space for number scribbling. High quality paperback, not magazine quality. The book is small in size but the numbers are printed in large font, easy to read. Every puzzle in this book has been carefully checked to ensure that each puzzle has only one possible solution. Lots of Fun! No Math Skills Needed! The Perfect Gift for All Ages! GET YOUR COPY NOW!

Book Sudoku 216 Medium to Extreme Puzzles

    Book Details:
  • Author : Matrix Puzzles
  • Publisher : Createspace Independent Publishing Platform
  • Release : 2018-03-18
  • ISBN : 9781986609296
  • Pages : 172 pages

Download or read book Sudoku 216 Medium to Extreme Puzzles written by Matrix Puzzles and published by Createspace Independent Publishing Platform. This book was released on 2018-03-18 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Become a Sudoku Master! Whatever Your Level, You'll Love This Sudoku Puzzle Book! This Book Features The Following: · 54 Medium Sudoku 9x9 Puzzles · 54 Hard Sudoku 9x9 Puzzles · 54 Very Hard Sudoku 9x9 Puzzles · 54 Extreme Sudoku 9x9 Puzzles High quality symmetrical puzzles. Two puzzles per page, set out in a 5.25x8 inch format. Full solutions for all puzzles at the back of the book. Plenty of white space for number scribbling. High quality paperback, not magazine quality. The book is small in size but the numbers are printed in large font, easy to read. Every puzzle in this book has been carefully checked to ensure that each puzzle has only one possible solution. Lots of Fun! No Math Skills Needed! The Perfect Gift for All Ages! GET YOUR COPY NOW!

Book Mega Sudoku 16x16   Hard   Volume 32   276 Puzzles

Download or read book Mega Sudoku 16x16 Hard Volume 32 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-09-27 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku is a fun and addicting logic puzzle game that has taken the world by storm. This book is ideal if you love to solve difficult Sudoku puzzle. You do not need to wade through tons of easy Sudoku puzzle before getting to the real brain teasers. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 large print puzzle per page, with lots of white space for scribbling. Mega Sudoku 16x16 - Hard is a collection of 276 puzzle: 216 hard Sudoku 16x16 puzzle 60 extra logic puzzle I guarantee that every logic puzzle in this Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzle in this book will appear in any of the other English PuzzleBooks.net books. Sudoku is also known as Number Place, Nanpure, Su Doku. Quite often Sudoku is misspelled as Suduko, Soduko, Sodoku, Sudoko, Suduku or Soduku.

Book Sudoku Puzzle Books for Kids   Bears 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book

Download or read book Sudoku Puzzle Books for Kids Bears 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book written by Zen Puzzle Books and published by . This book was released on 2019-11 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bears 216 Sudoku Puzzle Books For Kids - Easy To Hard, Beginners To Advanced Kids Activity Books - Suitable For Kids Of All Age Groups! If you're looking for a sudoku book for beginners, here's the perfect first sudoku puzzle book for you! Starting children out with super easy 4x4 puzzles, this book progressively challenges the reader with harder and harder puzzles. After conquering the 4x4 grid, kids then get to take on the 6x6 sudoku puzzle. All puzzle answers are included in the back of the book. These puzzles does not run on any batteries, and can provide hours of portable entertainment! Most suitable for use on Train or Air Travel for children to enjoy and play with! This big 8.5" x 11" book has lots of room to write and strong paper to survive erasing. 36 Relaxing Puzzles - Begin with the easiest level to build up confidence. These are 4 by 4 mini puzzles that is very easy as most of the numbers are already given. 36 Chill Puzzles - Step up to higher level 4 by 4 puzzles with less numbers given. This improves the logic level of the game as well as difficulty. 72 Smart Puzzles - Ease your way into more difficult 6 by 6 puzzles. The puzzles are designed with more numbers to ease the difficulty levels but allow the kids to work out the puzzles with more logic. 72 Genius Puzzles - Finally you are ready for more difficult 6 by 6 puzzles. The puzzles takes off a few numbers to improve the difficulty. Sudoku Puzzle Answers - Check your answers or find a hint if you get stuck. Each puzzle is unique and only has one right answer. Get this Sudoku Puzzle Books For Kids Now and teach your kids to develop critical thinking plus logic skills with the addicting fun of sudoku!

Book Sudoku Puzzle Books for Kids   Cat 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book

Download or read book Sudoku Puzzle Books for Kids Cat 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book written by Zen Puzzle Books and published by . This book was released on 2019-11 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cat 216 Sudoku Puzzle Books For Kids - Easy To Hard, Beginners To Advanced Kids Activity Books - Suitable For Kids Of All Age Groups! If you're looking for a sudoku book for beginners, here's the perfect first sudoku puzzle book for you! Starting children out with super easy 4x4 puzzles, this book progressively challenges the reader with harder and harder puzzles. After conquering the 4x4 grid, kids then get to take on the 6x6 sudoku puzzle. All puzzle answers are included in the back of the book. These puzzles does not run on any batteries, and can provide hours of portable entertainment! Most suitable for use on Train or Air Travel for children to enjoy and play with! This big 8.5" x 11" book has lots of room to write and strong paper to survive erasing. 36 Relaxing Puzzles - Begin with the easiest level to build up confidence. These are 4 by 4 mini puzzles that is very easy as most of the numbers are already given. 36 Chill Puzzles - Step up to higher level 4 by 4 puzzles with less numbers given. This improves the logic level of the game as well as difficulty. 72 Smart Puzzles - Ease your way into more difficult 6 by 6 puzzles. The puzzles are designed with more numbers to ease the difficulty levels but allow the kids to work out the puzzles with more logic. 72 Genius Puzzles - Finally you are ready for more difficult 6 by 6 puzzles. The puzzles takes off a few numbers to improve the difficulty. Sudoku Puzzle Answers - Check your answers or find a hint if you get stuck. Each puzzle is unique and only has one right answer. Get this Sudoku Puzzle Books For Kids Now and teach your kids to develop critical thinking plus logic skills with the addicting fun of sudoku!

Book Sudoku Puzzle Books for Kids   Christmas Cats 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book

Download or read book Sudoku Puzzle Books for Kids Christmas Cats 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book written by Zen Puzzle Books and published by . This book was released on 2019-11 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Christmas Cats 216 Sudoku Puzzle Books For Kids - Easy To Hard, Beginners To Advanced Kids Activity Books - Suitable For Kids Of All Age Groups! If you're looking for a sudoku book for beginners, here's the perfect first sudoku puzzle book for you! Starting children out with super easy 4x4 puzzles, this book progressively challenges the reader with harder and harder puzzles. After conquering the 4x4 grid, kids then get to take on the 6x6 sudoku puzzle. All puzzle answers are included in the back of the book. These puzzles does not run on any batteries, and can provide hours of portable entertainment! Most suitable for use on Train or Air Travel for children to enjoy and play with! This big 8.5" x 11" book has lots of room to write and strong paper to survive erasing. 36 Relaxing Puzzles - Begin with the easiest level to build up confidence. These are 4 by 4 mini puzzles that is very easy as most of the numbers are already given. 36 Chill Puzzles - Step up to higher level 4 by 4 puzzles with less numbers given. This improves the logic level of the game as well as difficulty. 72 Smart Puzzles - Ease your way into more difficult 6 by 6 puzzles. The puzzles are designed with more numbers to ease the difficulty levels but allow the kids to work out the puzzles with more logic. 72 Genius Puzzles - Finally you are ready for more difficult 6 by 6 puzzles. The puzzles takes off a few numbers to improve the difficulty. Sudoku Puzzle Answers - Check your answers or find a hint if you get stuck. Each puzzle is unique and only has one right answer. Get this Sudoku Puzzle Books For Kids Now and teach your kids to develop critical thinking plus logic skills with the addicting fun of sudoku!

Book Mega Sudoku 16x16 Large Print   Hard   Volume 59   276 Logic Puzzles

Download or read book Mega Sudoku 16x16 Large Print Hard Volume 59 276 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-12-19 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku is a fun and addicting logic puzzle game that has taken the world by storm. This book is ideal if you love to solve difficult Sudoku puzzle. You do not need to wade through tons of easy Sudoku puzzle before getting to the real brain teasers. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 large print puzzle per page, with lots of white space for scribbling. Mega Sudoku 16x16 Large Print - Hard is a collection of 276 puzzle: 216 hard Sudoku 16x16 puzzle 60 extra logic puzzle I guarantee that every logic puzzle in this Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzle in this book will appear in any of the other English PuzzleBooks.net books. Sudoku is also known as Number Place, Nanpure, Su Doku. Quite often Sudoku is misspelled as Suduko, Soduko, Sodoku, Sudoko, Suduku or Soduku.

Book Sudoku Puzzle Books for Kids   Halloween Cat 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book

Download or read book Sudoku Puzzle Books for Kids Halloween Cat 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book written by Zen Puzzle Books and published by . This book was released on 2019-11 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Halloween Cat 216 Sudoku Puzzle Books For Kids - Easy To Hard, Beginners To Advanced Kids Activity Books - Suitable For Kids Of All Age Groups! If you're looking for a sudoku book for beginners, here's the perfect first sudoku puzzle book for you! Starting children out with super easy 4x4 puzzles, this book progressively challenges the reader with harder and harder puzzles. After conquering the 4x4 grid, kids then get to take on the 6x6 sudoku puzzle. All puzzle answers are included in the back of the book. These puzzles does not run on any batteries, and can provide hours of portable entertainment! Most suitable for use on Train or Air Travel for children to enjoy and play with! This big 8.5" x 11" book has lots of room to write and strong paper to survive erasing. 36 Relaxing Puzzles - Begin with the easiest level to build up confidence. These are 4 by 4 mini puzzles that is very easy as most of the numbers are already given. 36 Chill Puzzles - Step up to higher level 4 by 4 puzzles with less numbers given. This improves the logic level of the game as well as difficulty. 72 Smart Puzzles - Ease your way into more difficult 6 by 6 puzzles. The puzzles are designed with more numbers to ease the difficulty levels but allow the kids to work out the puzzles with more logic. 72 Genius Puzzles - Finally you are ready for more difficult 6 by 6 puzzles. The puzzles takes off a few numbers to improve the difficulty. Sudoku Puzzle Answers - Check your answers or find a hint if you get stuck. Each puzzle is unique and only has one right answer. Get this Sudoku Puzzle Books For Kids Now and teach your kids to develop critical thinking plus logic skills with the addicting fun of sudoku!

Book Sudoku Puzzle Books for Kids   Birds 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book

Download or read book Sudoku Puzzle Books for Kids Birds 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book written by Zen Puzzle Books and published by . This book was released on 2019-11 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Birds Themed 216 Sudoku Puzzle Books For Kids - Easy To Hard, Beginners To Advanced Kids Activity Books - Suitable For Kids Of All Age Groups! If you're looking for a sudoku book for beginners, here's the perfect first sudoku puzzle book for you! Starting children out with super easy 4x4 puzzles, this book progressively challenges the reader with harder and harder puzzles. After conquering the 4x4 grid, kids then get to take on the 6x6 sudoku puzzle. All puzzle answers are included in the back of the book. These puzzles does not run on any batteries, and can provide hours of portable entertainment! Most suitable for use on Train or Air Travel for children to enjoy and play with! This big 8.5" x 11" book has lots of room to write and strong paper to survive erasing. 36 Relaxing Puzzles - Begin with the easiest level to build up confidence. These are 4 by 4 mini puzzles that is very easy as most of the numbers are already given. 36 Chill Puzzles - Step up to higher level 4 by 4 puzzles with less numbers given. This improves the logic level of the game as well as difficulty. 72 Smart Puzzles - Ease your way into more difficult 6 by 6 puzzles. The puzzles are designed with more numbers to ease the difficulty levels but allow the kids to work out the puzzles with more logic. 72 Genius Puzzles - Finally you are ready for more difficult 6 by 6 puzzles. The puzzles takes off a few numbers to improve the difficulty. Sudoku Puzzle Answers - Check your answers or find a hint if you get stuck. Each puzzle is unique and only has one right answer. Get this Sudoku Puzzle Books For Kids Now and teach your kids to develop critical thinking plus logic skills with the addicting fun of sudoku!

Book Sudoku 15x15   Hard   Volume 25   276 Puzzles

Download or read book Sudoku 15x15 Hard Volume 25 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-09-26 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku is a fun and addicting logic puzzle game that has taken the world by storm. This book is ideal if you love to solve difficult Sudoku puzzle. You do not need to wade through tons of easy Sudoku puzzle before getting to the real brain teasers. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 large print puzzle per page, with lots of white space for scribbling. Sudoku 15x15 - Hard is a collection of 276 puzzle: 216 hard Sudoku 15x15 puzzle 60 extra logic puzzle I guarantee that every logic puzzle in this Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzle in this book will appear in any of the other English PuzzleBooks.net books. Sudoku is also known as Number Place, Nanpure, Su Doku. Quite often Sudoku is misspelled as Suduko, Soduko, Sodoku, Sudoko, Suduku or Soduku.

Book Sudoku Puzzle Books for Kids   Christmas Birds 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book

Download or read book Sudoku Puzzle Books for Kids Christmas Birds 216 Sudoku Puzzles From Beginner to Advanced Kids Activity Book written by Zen Puzzle Books and published by . This book was released on 2019-11 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Christmas Birds 216 Sudoku Puzzle Books For Kids - Easy To Hard, Beginners To Advanced Kids Activity Books - Suitable For Kids Of All Age Groups! If you're looking for a sudoku book for beginners, here's the perfect first sudoku puzzle book for you! Starting children out with super easy 4x4 puzzles, this book progressively challenges the reader with harder and harder puzzles. After conquering the 4x4 grid, kids then get to take on the 6x6 sudoku puzzle. All puzzle answers are included in the back of the book. These puzzles does not run on any batteries, and can provide hours of portable entertainment! Most suitable for use on Train or Air Travel for children to enjoy and play with! This big 8.5" x 11" book has lots of room to write and strong paper to survive erasing. 36 Relaxing Puzzles - Begin with the easiest level to build up confidence. These are 4 by 4 mini puzzles that is very easy as most of the numbers are already given. 36 Chill Puzzles - Step up to higher level 4 by 4 puzzles with less numbers given. This improves the logic level of the game as well as difficulty. 72 Smart Puzzles - Ease your way into more difficult 6 by 6 puzzles. The puzzles are designed with more numbers to ease the difficulty levels but allow the kids to work out the puzzles with more logic. 72 Genius Puzzles - Finally you are ready for more difficult 6 by 6 puzzles. The puzzles takes off a few numbers to improve the difficulty. Sudoku Puzzle Answers - Check your answers or find a hint if you get stuck. Each puzzle is unique and only has one right answer. Get this Sudoku Puzzle Books For Kids Now and teach your kids to develop critical thinking plus logic skills with the addicting fun of sudoku!

Book Non Consecutive Sudoku   Hard   Volume 4   276 Logic Puzzles

Download or read book Non Consecutive Sudoku Hard Volume 4 276 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2015-01-10 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: When you buy this book you get an electronic version (PDF file) of the interior of this book. Non-Consecutive Sudoku is played in the same way as Sudoku except that no two adjacent cells have consecutive values. This book is ideal if you love to solve difficult Non-Consecutive Sudoku puzzles. You do not need to wade through tons of easy Non-Consecutive Sudoku puzzles before getting to the real brain teasers. Once you pick up this book, you won't be able to put it back down. You have been warned! Non-Consecutive Sudoku - Hard is a collection of 276 puzzles: 216 hard Non-Consecutive Sudoku puzzles 60 extra logic puzzles The goal of Non-Consecutive Sudoku is to fill in the empty cells, so that each column, row, and region contains each number exactly once. Furthermore, no two adjacent cells have consecutive values. For example, if a cell contains 3, then any neighboring square cannot contain either 2 or 4. I guarantee that every logic puzzle in this Non-Consecutive Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other English PuzzleBooks.net books.

Book 1000  Sudoku Puzzle Books

    Book Details:
  • Author : Little Owl
  • Publisher : Independently Published
  • Release : 2020-04-26
  • ISBN :
  • Pages : 220 pages

Download or read book 1000 Sudoku Puzzle Books written by Little Owl and published by Independently Published. This book was released on 2020-04-26 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stretch your brain and enjoy this sudoku book. Sudoku is one of the most popular games in the world. A huge collection of sudoku puzzles can keep you active. - 1032 sudoku puzzles - 3 levels of difficulty - 216 easy, 360 medium, 456 hard - 6 puzzles per page - all answers included - 6 x 9 inches / 15.24cm x 22.86cm - perfect as a gift

Book Sudoku 8x8   Hard   Volume 51   276 Puzzles

Download or read book Sudoku 8x8 Hard Volume 51 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-11-22 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku is a fun and addicting logic puzzle game that has taken the world by storm. This book is ideal if you love to solve difficult Sudoku puzzle. You do not need to wade through tons of easy Sudoku puzzle before getting to the real brain teasers. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 large print puzzle per page, with lots of white space for scribbling. Sudoku 8x8 - Hard is a collection of 276 puzzle: 216 hard Sudoku 8x8 puzzle 60 extra logic puzzle I guarantee that every logic puzzle in this Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzle in this book will appear in any of the other English PuzzleBooks.net books. Sudoku is also known as Number Place, Nanpure, Su Doku. Quite often Sudoku is misspelled as Suduko, Soduko, Sodoku, Sudoko, Suduku or Soduku.