Extreme 16 X 16 Sudoku

Download Extreme 16 X 16 Sudoku PDF Online Free

Author :
Publisher : Independently Published
ISBN 13 : 9781083038135
Total Pages : 112 pages
Book Rating : 4.0/5 (381 download)

DOWNLOAD NOW!


Book Synopsis Extreme 16 X 16 Sudoku by : Quick Creative

Download or read book Extreme 16 X 16 Sudoku written by Quick Creative and published by Independently Published. This book was released on 2019-07-26 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stimulate your brain with this Experienced Puzzler Hard 16 x 16 Sudoku Puzzle Book. Become a Sudoku Pro by solving all 55 puzzles in this book. Be careful - Sudoku Books can be addictive. With 55 puzzles included in this book, you will be stimulating your brain for a long time helping to keep you mentally sharp and smart! Great pocket size 6" x 9" means it's the perfect size for carrying in your purse, pocket, or backpack. Work your brain anytime, anywhere! Quick Creative's Version of Extreme Sudoku Puzzle Book 55 HARD 16 x 16 Puzzles includes: 55 Hard Sudoku 16 x 16 puzzles Answer Pages Hours of Fun Solution Pages Larger Print One Puzzle Per Page Search the author name above for more extreme Sudoku Versions from Easy to Extra Hard and 9x9 or 16x16

Extreme 16 X 16 Sudoku

Download Extreme 16 X 16 Sudoku PDF Online Free

Author :
Publisher : Independently Published
ISBN 13 : 9781083039163
Total Pages : 112 pages
Book Rating : 4.0/5 (391 download)

DOWNLOAD NOW!


Book Synopsis Extreme 16 X 16 Sudoku by : Quick Creative

Download or read book Extreme 16 X 16 Sudoku written by Quick Creative and published by Independently Published. This book was released on 2019-07-26 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stimulate your brain with this Experienced Puzzler Hard 16 x 16 Sudoku Puzzle Book. Become a Sudoku Pro by solving all 55 puzzles in this book. Be careful - Sudoku Books can be addictive. With 55 puzzles included in this book, you will be stimulating your brain for a long time helping to keep you mentally sharp and smart! Great pocket size 6" x 9" means it's the perfect size for carrying in your purse, pocket, or backpack. Work your brain anytime, anywhere! Quick Creative's Version of Extreme Sudoku Puzzle Book 55 HARD 16 x 16 Puzzles includes: 55 Hard Sudoku 16 x 16 puzzles Answer Pages Hours of Fun Solution Pages Larger Print One Puzzle Per Page Search the author name above for more extreme Sudoku Versions from Easy to Extra Hard and 9x9 or 16x16

16x16 Diagonal Sudoku X

Download 16x16 Diagonal Sudoku X PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.6/5 (465 download)

DOWNLOAD NOW!


Book Synopsis 16x16 Diagonal Sudoku X by :

Download or read book 16x16 Diagonal Sudoku X written by and published by . This book was released on 2020-05-18 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Challenge your brain, have a fun time, and fight the boredom with the mega Diagonal Sudoku challenging puzzles. This Sudoku activity book includes 120 puzzles of 16x16 Sudoku X from Hard to Extreme with instructions, examples, and solutions. Plus Bonus Puzzles of a different type of Sudoku at the end of the book. What is 16 x16 Diagonal Sudoku X puzzle? 16 x16 Diagonal Sudoku X has 16x16 squares. Each row, column, Diagonal cells, and block (surrounded by bold lines) should contain all numbers from 1 to 16 No number is repeated in any row or column or block or in a diagonal line. Why will you love this book? Scientific research has shown that solving logic puzzles as Sudoku keeps your mind sharp, improves memory, and enhances problem-solving skills. 16x16 Diagonal Sudoku X book has four challenging levels, from Hard to extremely hard. One Puzzle per page in a large font makes it easy to read and will not strain the eyes. Wide margins for your calculations and work to solve the puzzles. Plus the solutions to all the puzzles included at the end of the book. BONUS Puzzles: 6 Diagonal Samurai Sudoku Puzzles. Features: Size: 8.5x11 inches (large size) with softcover and paperback binding. Pages: 155 pages with 120+ different puzzles and the solutions of all the puzzles at the end. Imagine the fun and challenging hours you'll spend solving these challenging puzzles! Scroll up and order your copy.

Extra Large Print Sudoku Medium

Download Extra Large Print Sudoku Medium PDF Online Free

Author :
Publisher : Independently Published
ISBN 13 : 9781077227514
Total Pages : 130 pages
Book Rating : 4.2/5 (275 download)

DOWNLOAD NOW!


Book Synopsis Extra Large Print Sudoku Medium by : Panda Puzzle Book

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.

Extreme Sudoku

Download Extreme Sudoku PDF Online Free

Author :
Publisher : Crown
ISBN 13 : 0307346463
Total Pages : 450 pages
Book Rating : 4.3/5 (73 download)

DOWNLOAD NOW!


Book Synopsis Extreme Sudoku by : Carol Vorderman

Download or read book Extreme Sudoku written by Carol Vorderman and published by Crown. This book was released on 2006-01-31 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Do you know and love Sudoku, the number-placing logic puzzle? Can you breeze through easy puzzles in a matter of minutes, and zip through the harder puzzles, as well? Are you looking for harder and more complex puzzles to keep your attention and take your skill to the next level? Then Extreme Sudoku is the book for you. Inside, international Sudoku expert Carol Vorderman presents 175 tricky puzzles in the classic Sudoku style, and also introduces some fun and challenging new varieties such as Squiffy Sudoku, Sudoku 16, and Killer Sudoku. Each new Sudoku game is even more involved and exciting than the last, but never fear! With Carol's easy-to-understand instructions and step-by-step explanations of each new puzzle format, you'll always succeed, even with the toughest Sudoku puzzles. Includes more than 300 puzzles.

Sudoku 16 X 16

Download Sudoku 16 X 16 PDF Online Free

Author :
Publisher : Udv
ISBN 13 : 9783954972463
Total Pages : 104 pages
Book Rating : 4.9/5 (724 download)

DOWNLOAD NOW!


Book Synopsis Sudoku 16 X 16 by : David Badger

Download or read book Sudoku 16 X 16 written by David Badger and published by Udv. This book was released on 2014-01-11 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sudoku 16 x 16 100 large Sudoku puzzles Place digits from 1 to 16 in each empty cell. Every column, every row and every 4 x 4 box should contain one of each digit.

Krazydad Two Not Touch Volume 1: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times

Download Krazydad Two Not Touch Volume 1: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times PDF Online Free

Author :
Publisher : Krazydad Two Not Touch
ISBN 13 : 9781946855367
Total Pages : 92 pages
Book Rating : 4.8/5 (553 download)

DOWNLOAD NOW!


Book Synopsis Krazydad Two Not Touch Volume 1: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times by : Jim Bumgardner

Download or read book Krazydad Two Not Touch Volume 1: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times written by Jim Bumgardner and published by Krazydad Two Not Touch. This book was released on 2020-07-27 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: From krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 of your favorite Star Battle puzzles. These puzzles will provide a healthy diversion for you in these challenging times, and help you make it to the other side with your sanity intact! Includes an instructive and pithy tutorial.

Extreme Sudoku For Dummies

Download Extreme Sudoku For Dummies PDF Online Free

Author :
Publisher : For Dummies
ISBN 13 : 9780470116272
Total Pages : 364 pages
Book Rating : 4.1/5 (162 download)

DOWNLOAD NOW!


Book Synopsis Extreme Sudoku For Dummies by : Andrew Heron

Download or read book Extreme Sudoku For Dummies written by Andrew Heron and published by For Dummies. This book was released on 2006-11-13 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Have you worn out all of your pencils mastering ever-changing Sudoku puzzles? Have you stepped up your game to the next level and now seek something a little more demanding? Do you crave the challenge of more cunning, deadly Sudoku? Extreme Sudoku For Dummies features 236 beyond diabolical puzzles to challenge even the most skilled expert—perfect for anyone who wants to be a true Sudoku master. In this book you will not only discover some amazingly tricky Sudoku puzzles, but also face new challenges in the form of Killer Sudoku, Irregular Sudoku, and other recently developed variations. And you won't need to rely on guesswork—you'll find an easy-to-understand, logical approach that will help you tackle even the most difficult puzzles in the book. Extreme Sudoku For Dummies offers: An overview of Sudoku basics Variations such as 9 x 9, 12 x 12, 16 x 16, jigsaw, circular, and killer puzzles Useful strategies to filter out candidates and solve puzzles, one step at a time The lowdown on advanced strategies such as Naked Pairs, Naked Triplets, Hidden Pairs, X-Wing, Y-Wing, and other techniques Time completion estimates so that you can use the clock to measure your progress and ability Along with a wealth of puzzles that will test every Sudoku player's skill, Extreme Sudoku For Dummies provides the tips, tricks, advice, and strategies to help you become a true master of the game.

Mega Sudoku 16x16 - Extreme - Volume 33 - 276 Puzzles

Download Mega Sudoku 16x16 - Extreme - Volume 33 - 276 Puzzles PDF Online Free

Author :
Publisher : PuzzleBooks.net
ISBN 13 : 1502532204
Total Pages : 181 pages
Book Rating : 4.5/5 (25 download)

DOWNLOAD NOW!


Book Synopsis Mega Sudoku 16x16 - Extreme - Volume 33 - 276 Puzzles by : Nick Snels

Download or read book Mega Sudoku 16x16 - Extreme - Volume 33 - 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 are a Sudoku expert. In this book, you find the most extreme Sudoku puzzle ever. 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 - Extreme is a collection of 276 puzzle: 216 extreme 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.

Sudoku 16 X 16

Download Sudoku 16 X 16 PDF Online Free

Author :
Publisher : Udv
ISBN 13 : 9783954972890
Total Pages : 104 pages
Book Rating : 4.9/5 (728 download)

DOWNLOAD NOW!


Book Synopsis Sudoku 16 X 16 by : David Badger

Download or read book Sudoku 16 X 16 written by David Badger and published by Udv. This book was released on 2014-01-11 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sudoku 16 x 16 100 large Sudoku puzzles Place digits from 1 to 16 in each empty cell. Every column, every row and every 4 x 4 box should contain one of each digit.

Super Sudoku

Download Super Sudoku PDF Online Free

Author :
Publisher : Gramercy
ISBN 13 : 9780517228883
Total Pages : 0 pages
Book Rating : 4.2/5 (288 download)

DOWNLOAD NOW!


Book Synopsis Super Sudoku by : Gramercy Books

Download or read book Super Sudoku written by Gramercy Books and published by Gramercy. This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: These popular logic puzzles from Japan are taking the world by storm. Sudoku looks like arithmetic but requires just logic. While the rules are simple, the solution can be quite complex. These 200 extra-large puzzles offer hours of stimulating entertainment.

Giant Sudoku 16x16

Download Giant Sudoku 16x16 PDF Online Free

Author :
Publisher : Createspace Independent Pub
ISBN 13 : 9781478313649
Total Pages : 68 pages
Book Rating : 4.3/5 (136 download)

DOWNLOAD NOW!


Book Synopsis Giant Sudoku 16x16 by : Clarity Media

Download or read book Giant Sudoku 16x16 written by Clarity Media and published by Createspace Independent Pub. This book was released on 2012-07-26 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to this mind-boggling collection of 50 fantastic 16 x 16 sudoku puzzles. 16 x 16 sudoku puzzles work just the same as regular 9 x 9 sudoku puzzles, but they are, well, a lot bigger! Infact whereas a normal sudoku has 81 squares in it, a 16x16 sudoku has 256 squares in it, so you get a lot more puzzle for your money. Enter the numbers from 1 - 16 once in each row, column and 4 x 4 box. The puzzles are displayed one per page on a generous paper size of 8.5" x 11" (21.59 x 27.94 cm). So there is plenty of space for you to enter your pencilmarks inside the grid. Each of the 50 puzzles in this book displays symmetry in the distribution of the givens. Each puzzle has one solution that can be reached through the application of logical rules alone - you'll never need to guess. Whether you are a fan of 16 x 16 sudoku currently, or simply looking for a longer-lasting sudoku challenge than presented by regular sudoku grids, these large sudoku puzzles are sure to provide hours of enjoyment.

Anti Diagonal Sudoku 16x16 - Easy to Extreme - Volume 2 - 276 Puzzles

Download Anti Diagonal Sudoku 16x16 - Easy to Extreme - Volume 2 - 276 Puzzles PDF Online Free

Author :
Publisher : PuzzleBooks.net
ISBN 13 : 1503153770
Total Pages : 180 pages
Book Rating : 4.5/5 (31 download)

DOWNLOAD NOW!


Book Synopsis Anti Diagonal Sudoku 16x16 - Easy to Extreme - Volume 2 - 276 Puzzles by : Nick Snels

Download or read book Anti Diagonal Sudoku 16x16 - Easy to Extreme - Volume 2 - 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-11-08 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. Become a master in solving Anti Diagonal Sudoku 16x16. After solving all the puzzles in this book, you will be a Anti Diagonal Sudoku Pro. You start with easy Anti Diagonal Sudoku puzzles and you gradually build your way up to extremely difficult Anti Diagonal Sudoku puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Anti Diagonal Sudoku 16x16 - Easy to Extreme is a collection of 276 puzzles: 54 easy Anti Diagonal Sudoku 16x16 puzzles 54 medium Anti Diagonal Sudoku 16x16 puzzles 54 hard Anti Diagonal Sudoku 16x16 puzzles 54 extreme Anti Diagonal Sudoku 16x16 puzzles 60 extra logic puzzles The goal of Anti Diagonal Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains each number exactly once and each diagonal has at most three different numbers for 9x9 grids and at most four different numbers for 16x16 grids. I guarantee that every logic puzzle in this Anti Diagonal 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.

Mega Sudoku 16x16 Large Print - Extreme - Volume 60 - 276 Logic Puzzles

Download Mega Sudoku 16x16 Large Print - Extreme - Volume 60 - 276 Logic Puzzles PDF Online Free

Author :
Publisher : PuzzleBooks.net
ISBN 13 : 1505649927
Total Pages : 311 pages
Book Rating : 4.5/5 (56 download)

DOWNLOAD NOW!


Book Synopsis Mega Sudoku 16x16 Large Print - Extreme - Volume 60 - 276 Logic Puzzles by : Nick Snels

Download or read book Mega Sudoku 16x16 Large Print - Extreme - Volume 60 - 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 are a Sudoku expert. In this book, you find the most extreme Sudoku puzzle ever. 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 - Extreme is a collection of 276 puzzle: 216 extreme 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.

Mega Sudoku 16x16 Deluxe - Easy to Extreme - Volume 35 - 468 Puzzles

Download Mega Sudoku 16x16 Deluxe - Easy to Extreme - Volume 35 - 468 Puzzles PDF Online Free

Author :
Publisher : PuzzleBooks.net
ISBN 13 : 1502532387
Total Pages : 293 pages
Book Rating : 4.5/5 (25 download)

DOWNLOAD NOW!


Book Synopsis Mega Sudoku 16x16 Deluxe - Easy to Extreme - Volume 35 - 468 Puzzles by : Nick Snels

Download or read book Mega Sudoku 16x16 Deluxe - Easy to Extreme - Volume 35 - 468 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-09-27 with total page 293 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. Mega Sudoku 16x16 Deluxe - Easy to Extreme is a collection of 468 puzzle: 102 easy Sudoku 16x16 puzzle 102 medium Sudoku 16x16 puzzle 102 hard Sudoku 16x16 puzzle 102 extreme Sudoku 16x16 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.

Mega Sudoku 16x16 - 200 Very Hard Puzzles

Download Mega Sudoku 16x16 - 200 Very Hard Puzzles PDF Online Free

Author :
Publisher :
ISBN 13 : 9781688670440
Total Pages : 118 pages
Book Rating : 4.6/5 (74 download)

DOWNLOAD NOW!


Book Synopsis Mega Sudoku 16x16 - 200 Very Hard Puzzles by : Liam Parker

Download or read book Mega Sudoku 16x16 - 200 Very Hard Puzzles written by Liam Parker and published by . This book was released on 2019-08-26 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The puzzle a 16 x 16 grid made up of 4 x 4 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, and region contains the numbers 1 through 16 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.

Mega Sudoku 16x16 - Easy to Extreme - Volume 29 - 276 Puzzles

Download Mega Sudoku 16x16 - Easy to Extreme - Volume 29 - 276 Puzzles PDF Online Free

Author :
Publisher : PuzzleBooks.net
ISBN 13 : 1502531569
Total Pages : 181 pages
Book Rating : 4.5/5 (25 download)

DOWNLOAD NOW!


Book Synopsis Mega Sudoku 16x16 - Easy to Extreme - Volume 29 - 276 Puzzles by : Nick Snels

Download or read book Mega Sudoku 16x16 - Easy to Extreme - Volume 29 - 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! 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. Mega Sudoku 16x16 - Easy to Extreme is a collection of 276 puzzle: 54 easy Sudoku 16x16 puzzle 54 medium Sudoku 16x16 puzzle 54 hard Sudoku 16x16 puzzle 54 extreme Sudoku 16x16 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.