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Book Brain Teaser Puzzles   12x12 Sudoku Books For Adults

Download or read book Brain Teaser Puzzles 12x12 Sudoku Books For Adults written by Panda Puzzle Book and published by . This book was released on 2019-12-12 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Features: 150 Sudoku 12x12 Normal To Hard level. Sudoku puzzles grid size in the book are 12x12 that are played with 12 numbers All puzzles come complete with solutions Puzzles are printed on high quality white paper, size 8,5 x 11 inches Two puzzles per page 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. Choose this book today by clicking on the BUY NOW button at the top of this page.

Book Brain Games For Adults   12x12 Sudoku Books

Download or read book Brain Games For Adults 12x12 Sudoku Books written by Panda Puzzle Book and published by . This book was released on 2019-12-07 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sudoku is The Most Popular Puzzle Games For All Time This book contains 150 Sudoku 12x12 puzzles. All of the puzzles inside the book are 12x12 in Normal To Hard level. 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. Features: 150 Sudoku 12x12 Sudoku puzzles grid size in the book are 12x12 that are played with 12 numbers All puzzles come complete with solutions Puzzles are printed on high quality white paper, size 8,5 x 11 inches Two puzzles per page Choose this book today by clicking on the BUY NOW button at the top of this page.

Book 12x12 Sudoku Books For Adults

Download or read book 12x12 Sudoku Books For Adults written by Panda Puzzle Book and published by . This book was released on 2019-12-05 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 150 Sudoku 12x12 puzzles. All of the puzzles inside the book are 12x12 in Normal To Hard level. 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 every day, 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. Features: 150 Sudoku 12x12 Sudoku puzzles grid size in the book are 12x12 that are played with 12 numbers All puzzles come complete with solutions Puzzles are printed on high quality white paper, size 8,5 x 11 inches Two puzzles per page Choose this book today by clicking on the BUY NOW button at the top of this page.

Book 12x12 Sudoku Puzzle Books

    Book Details:
  • Author : Panda Puzzle Book
  • Publisher :
  • Release : 2019-12-05
  • ISBN : 9781671785991
  • Pages : 116 pages

Download or read book 12x12 Sudoku Puzzle Books written by Panda Puzzle Book and published by . This book was released on 2019-12-05 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 150 Sudoku 12x12 puzzles. All of the puzzles inside the book are 12x12 in Normal To Hard level. 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 every day, 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. Features: 150 Sudoku 12x12 Sudoku puzzles grid size in the book are 12x12 that are played with 12 numbers All puzzles come complete with solutions Puzzles are printed on high quality white paper, size 8,5 x 11 inches Two puzzles per page Choose this book today by clicking on the BUY NOW button at the top of this page.

Book 12x12 Sudoku Books Medium To Hard

Download or read book 12x12 Sudoku Books Medium To Hard written by Panda Puzzle Book and published by . This book was released on 2019-12-05 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 150 Sudoku 12x12 puzzles. All of the puzzles inside the book are 12x12 in Normal To Hard level. 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 every day, 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. Features: 150 Sudoku 12x12 Sudoku puzzles grid size in the book are 12x12 that are played with 12 numbers All puzzles come complete with solutions Puzzles are printed on high quality white paper, size 8,5 x 11 inches Two puzzles per page Choose this book today by clicking on the BUY NOW button at the top of this page.

Book Sudoku 12x12 Puzzles For Adults

Download or read book Sudoku 12x12 Puzzles For Adults written by Suzanna Tahlia and published by Independently Published. This book was released on 2024-02-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: ★ Super Su Doku Delights: Mind-Bending Sudoku 12x12 Puzzles for Adults ★ What's a Sudoku 12x12 Puzzle? Sudoku enthusiasts often use the terms Super Sudoku or Alphadoku for the 12x12 puzzle variant. Despite its larger grid, solving this version adheres to the same principles as the classic 9x9 Sudoku puzzle. However, in the "Number & Letter Edition" of the 12x12 Sudoku, instead of using only the digits 1 to 9, a combination of numbers and letters, including 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, is employed. Conversely, in the "Only Number Edition," the puzzle utilizes numbers 1 through 12, without incorporating any letters. Why Choose Our "Sudoku 12x12 Puzzle Book"? Clear Guidance: Whether you're a beginner or an expert, our book provides simple instructions to get you started on your Sudoku adventure. Appropriate Complexity: Each puzzle in our Sudoku 12x12 Puzzle Book is meticulously crafted to ensure an appropriate difficulty level. Enjoy a satisfying challenge with puzzles that are just perfect for your skill level! Cognitive Boost: Sudoku puzzles not only entertain but also sharpen your focus and problem-solving skills, giving your brain a healthy workout. Abundance of Puzzles: There's always a new puzzle waiting to be solved. Get ready for hours of immersive fun! Thoughtfully Designed Grids: Professionally crafted grids ensure readability and ease of solving, making your puzzle-solving experience enjoyable. Anywhere, Anytime Entertainment: No matter where you go, do not miss the excitement of solving sudoku puzzles! Perfect for breaks, travel, or leisurely moments, our book provides versatile companionship for relaxation and mental stimulation. Answers Included: Stuck on a puzzle? Fear not! Our book includes solutions to guide you through the trickier challenges, enhancing your solving experience. Perfect Gift: Surprise puzzle enthusiasts with this engaging book, offering hours of brain-teasing enjoyment for friends and family alike. Only New and Unique Puzzles: With every grid, unique and carefully chosen puzzles ensure an original and engaging experience. Inside this book, you'll find: 200 Sudoku puzzles with appropriate difficulty level. 2 Large-sized puzzles per page for continuous engagement. Each puzzle has a unique solution, thoroughly tested before publishing. 20 solutions per page for reference and progress tracking. Compact yet readable solutions to keep the page count low. Hours of stimulating entertainment. Ideal gift for lovers of logic puzzles. High-quality white paper sheet, paperback, excellent binding. Great for pencil or ink. Grab a copy of the "12x12 Grid Sudoku Puzzle Book" today and treat your brain to a delightful workout! Explore your reasoning skills, have fun, and experience the satisfaction of solving these amazing puzzles. Would you like to see more puzzle books with front and back covers that are artistically designed and puzzles that are expertly made? Click on our brand name or the author's name to view thousands of puzzle books beloved by countless puzzle enthusiasts!

Book 12x12 Sudoku With Solutions

    Book Details:
  • Author : Panda Book
  • Publisher : Independently Published
  • Release : 2019-12-05
  • ISBN : 9781671790841
  • Pages : 115 pages

Download or read book 12x12 Sudoku With Solutions written by Panda Book and published by Independently Published. This book was released on 2019-12-05 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 150 Sudoku 12x12 puzzles. All of the puzzles inside the book are 12x12 in Normal To Hard level. 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 every day, 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. Features: 150 Sudoku 12x12 Sudoku puzzles grid size in the book are 12x12 that are played with 12 numbers All puzzles come complete with solutions Puzzles are printed on high quality white paper, size 8,5 x 11 inches Two puzzles per page Choose this book today by clicking on the BUY NOW button at the top of this page.

Book Large Sudoku 12x12   Hard   Volume 18   276 Puzzles

Download or read book Large Sudoku 12x12 Hard Volume 18 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-09-22 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. Large Sudoku 12x12 - Hard is a collection of 276 puzzle: 216 hard Sudoku 12x12 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 12x12 Puzzles For Adults

Download or read book Sudoku 12x12 Puzzles For Adults written by Suzanna Tahlia and published by Independently Published. This book was released on 2024-02-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: ★ Super Su Doku Delights: Mind-Bending Sudoku 12x12 Puzzles for Adults ★ What's a Sudoku 12x12 Puzzle? Sudoku enthusiasts often use the terms Super Sudoku or Alphadoku for the 12x12 puzzle variant. Despite its larger grid, solving this version adheres to the same principles as the classic 9x9 Sudoku puzzle. However, in the "Number & Letter Edition" of the 12x12 Sudoku, instead of using only the digits 1 to 9, a combination of numbers and letters, including 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, is employed. Conversely, in the "Only Number Edition," the puzzle utilizes numbers 1 through 12, without incorporating any letters. Why Choose Our "Sudoku 12x12 Puzzle Book"? Clear Guidance: Whether you're a beginner or an expert, our book provides simple instructions to get you started on your Sudoku adventure. Appropriate Complexity: Each puzzle in our Sudoku 12x12 Puzzle Book is meticulously crafted to ensure an appropriate difficulty level. Enjoy a satisfying challenge with puzzles that are just perfect for your skill level! Cognitive Boost: Sudoku puzzles not only entertain but also sharpen your focus and problem-solving skills, giving your brain a healthy workout. Abundance of Puzzles: There's always a new puzzle waiting to be solved. Get ready for hours of immersive fun! Thoughtfully Designed Grids: Professionally crafted grids ensure readability and ease of solving, making your puzzle-solving experience enjoyable. Anywhere, Anytime Entertainment: No matter where you go, do not miss the excitement of solving sudoku puzzles! Perfect for breaks, travel, or leisurely moments, our book provides versatile companionship for relaxation and mental stimulation. Answers Included: Stuck on a puzzle? Fear not! Our book includes solutions to guide you through the trickier challenges, enhancing your solving experience. Perfect Gift: Surprise puzzle enthusiasts with this engaging book, offering hours of brain-teasing enjoyment for friends and family alike. Only New and Unique Puzzles: With every grid, unique and carefully chosen puzzles ensure an original and engaging experience. Inside this book, you'll find: 200 Sudoku puzzles with appropriate difficulty level. 2 Large-sized puzzles per page for continuous engagement. Each puzzle has a unique solution, thoroughly tested before publishing. 20 solutions per page for reference and progress tracking. Compact yet readable solutions to keep the page count low. Hours of stimulating entertainment. Ideal gift for lovers of logic puzzles. High-quality white paper sheet, paperback, excellent binding. Great for pencil or ink. Grab a copy of the "12x12 Grid Sudoku Puzzle Book" today and treat your brain to a delightful workout! Explore your reasoning skills, have fun, and experience the satisfaction of solving these amazing puzzles. Would you like to see more puzzle books with front and back covers that are artistically designed and puzzles that are expertly made? Click on our brand name or the author's name to view thousands of puzzle books beloved by countless puzzle enthusiasts!

Book Brain Games Book For Adults   Sudoku Variants Puzzle Books

Download or read book Brain Games Book For Adults Sudoku Variants Puzzle Books written by Panda Puzzle Book and published by . This book was released on 2019-11-16 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. This specific puzzle book contains a top-quality variety of sudoku puzzles which are guaranteed to challenge you in the best way possible. This book contains 180 Sudoku variations. The following Sudoku variants are included: Sudoku X Sudoku Hyper Sudoku Twins Sudoku Triathlon A Sudoku Triathlon B Sudoku Marathon Sudoku Samurai Sudoku 12x12 Sudoku 16x16 Features: 180 Sudoku Variants Puzzle Books An answer key for each sudoku puzzle Puzzles are printed on high quality white paper, paper size 8,5 x 11 inches 2 Puzzles Per Page, solving could be easy on your eyes Choose your book today by clicking on the BUY NOW button at the top of this page.

Book Jigsaw Sudoku 12x12   Hard   Volume 18   276 Puzzles

Download or read book Jigsaw Sudoku 12x12 Hard Volume 18 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-19 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! Jigsaw Sudoku is Sudoku with a twist. Instead of square shaped regions, the regions are irregularly shaped. This makes solving a Jigsaw Sudoku puzzle that little bit more difficult than Sudoku. This book is ideal if you love to solve difficult Jigsaw Sudoku puzzle. You do not need to wade through tons of easy Jigsaw 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. Jigsaw Sudoku 12x12 - Hard is a collection of 276 puzzle: 216 hard Jigsaw Sudoku 12x12 puzzle 60 extra logic puzzle I guarantee that every logic puzzle in this Jigsaw 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. Jigsaw Sudoku is also known as Geometry Sudoku, Irregular Sudoku, Squiggly Sudoku, Kikagaku Nanpure.

Book Large Sudoku 12x12   Medium   Volume 17   276 Puzzles

Download or read book Large Sudoku 12x12 Medium Volume 17 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-09-22 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 already know how to solve Sudoku puzzle, but you find our hard Sudoku puzzle too difficult. 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. Large Sudoku 12x12 - Medium is a collection of 276 puzzle: 216 medium Sudoku 12x12 puzzle 60 extra logic puzzle The goal of Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains each number exactly once. 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 Large Sudoku 12x12 Large Print   Easy to Extreme   Volume 20   276 Puzzles

Download or read book Large Sudoku 12x12 Large Print Easy to Extreme Volume 20 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-09-22 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! Become a master in solving Sudoku. After solving all the puzzle in this book, you will be a Sudoku Pro. You start with easy Sudoku puzzle and you gradually build your way up to extremely difficult Sudoku puzzle. 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. Large Sudoku 12x12 Large Print - Easy to Extreme is a collection of 276 puzzle: 54 easy Sudoku 12x12 puzzle 54 medium Sudoku 12x12 puzzle 54 hard Sudoku 12x12 puzzle 54 extreme Sudoku 12x12 puzzle 60 extra logic puzzle The goal of Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains each number exactly once. 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 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 Jigsaw Sudoku 12x12   Medium   Volume 17   276 Puzzles

Download or read book Jigsaw Sudoku 12x12 Medium Volume 17 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-19 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! Jigsaw Sudoku is Sudoku with a twist. Instead of square shaped regions, the regions are irregularly shaped. This makes solving a Jigsaw Sudoku puzzle that little bit more difficult than Sudoku. This book is ideal if you already know how to solve Jigsaw Sudoku puzzle, but you find our hard Jigsaw Sudoku puzzle too difficult. 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. Jigsaw Sudoku 12x12 - Medium is a collection of 276 puzzle: 216 medium Jigsaw Sudoku 12x12 puzzle 60 extra logic puzzle The goal of Jigsaw Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains each number exactly once. The regions are of irregular shape. I guarantee that every logic puzzle in this Jigsaw 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. Jigsaw Sudoku is also known as Geometry Sudoku, Irregular Sudoku, Squiggly Sudoku, Kikagaku Nanpure.

Book Killer Sudoku 12x12   Hard

Download or read book Killer Sudoku 12x12 Hard written by Nick Snels and published by Createspace Independent Publishing Platform. This book was released on 2014-10-09 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Killer Sudoku is a fun and addicting logic puzzle game that combines Sudoku with an addition math game. Killer Sudoku is a fun way for kids and adults to practice addition facts. In this book, you do not need to wade through tons of easy Killer Sudoku 12x12 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! Killer Sudoku 12x12 - Hard is a collection of 276 puzzles: 216 hard Killer Sudoku 12x12 puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this Killer 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 PuzzleBooks.net books. Killer Sudoku is also known as Sums Sudoku, Sumdoku, Sum Doku, Addoku, Killer Su Doku, Samunamupure, Kikagaku Nampure, Samu Nanpure, Sums Number Place.

Book Jigsaw Sudoku 12x12 Large Print   Easy to Extreme   Volume 20   276 Puzzles

Download or read book Jigsaw Sudoku 12x12 Large Print Easy to Extreme Volume 20 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-19 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! Become a master in solving Jigsaw Sudoku. After solving all the puzzle in this book, you will be a Jigsaw Sudoku Pro. You start with easy Jigsaw Sudoku puzzle and you gradually build your way up to extremely difficult Jigsaw Sudoku puzzle. 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. Jigsaw Sudoku 12x12 Large Print - Easy to Extreme is a collection of 276 puzzle: 54 easy Jigsaw Sudoku 12x12 puzzle 54 medium Jigsaw Sudoku 12x12 puzzle 54 hard Jigsaw Sudoku 12x12 puzzle 54 extreme Jigsaw Sudoku 12x12 puzzle 60 extra logic puzzle The goal of Jigsaw Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains each number exactly once. The regions are of irregular shape. I guarantee that every logic puzzle in this Jigsaw 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. Jigsaw Sudoku is also known as Geometry Sudoku, Irregular Sudoku, Squiggly Sudoku, Kikagaku Nanpure.