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.

From Nikoli, the Japanese puzzle company that created the sudoku craze, comesa title that starts at hard and goes to a level of difficulty not seen in anyprevious books.

Catch the latest wave in Sudoku-mania! These 275 X-Factor SuDoku puzzles are for the diagonally challenged, in 6 difficulty levels from Simple to Fiendish. X-Factor puzzles follow the same rules as for regular SuDoku puzzles PLUS the two shaded diagonal regions also contain the numbers 1 to 9 once only. Each X-Factor puzzle is joined to a previous and following puzzle through common puzzle solution numbers. As well, this book is an extension of "The World's Longest SuDoku Puzzle", now at 1,271 puzzles in length. Includes strategy guide for solving SuDoku puzzles, and tips on how to find X-Factor numbers. And for those who still can't get enough, try solving 275 riddles! Joe Defries is a current 2-time Guinness World Record holder, and is the joe in suJoku.com & joe-ks.com (the Largest Source of Internet Humour). Betcha Can't Beat That!* * re Joe's 'super-human puzzling feat' - the World's Longest SuDoku Marathon - as published in "The Addict's Guide to Everything Sudoku" by Fiorella Grossi, Fair Winds Press, 2007

A simple understandng of the Sudoku X-Cycle technique to help those Sudoku enthusiast solve those more challenging Sudoku puzzles! After reading this you will understand how to recognize, construct, and utilize X-cycles for candidate (X) eliminations to help you solve the more challenging Sudoku puzzles!

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.

If you want to learn the basics of playing Sudoku puzzles quickly and easily for newbies and beginners, then get this "How To Play Sudoku" guide. In this step-by-step guide, you will rep the following benefits: - Be familiar with the the game rules. - Learn the basic way of doing Sudoku. - Get useful tips in solving Sudoku puzzle. - Be able to solve Sudoku puzzle in the shortest time possible. - Learn how to appropriately choose a candidate. - Solve different levels of Sudoku puzzle. - Amaze your friends and family to your new found hobby of solving sudoku. - And much more! Click "Buy Now" to get it now!

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.

Sudoku-X follows the same rules as a standard Sudoku puzzle, with the only difference being the cross of shaded squares running from all four corners to the center square, which must also contain one instance of the numbers 1-9. The aim of the puzzle is to fill the blank squares with the correct numbers. All rows, columns, boxes and shaded diagonals must end up containing all of the numbers from 1 to 9. Each number can only appear once in a row, column, box and shaded diagonal line. To help you on your way, some of the cells have already been filled in. 6 puzzles per page, set out in a large 8.5 x 11 inch format. * 400 unique Sudoku-X puzzles* Hard Difficulty Level* Includes solutions for every puzzle * Countless hours of entertainment and brain training* Perfect as a special gift

Sudoku X (also known as "Diagonal Sudoku") is a placement puzzle. In this sudokus main diagonals also contain the digits 1 through 9. About Book This book introduces you to the amazing world of Sudoku X puzzles. It will help you understand the rules of this puzzle. This book is perfect for players of all skill levels and ages. You will find 200 exciting puzzles, both for beginners and for professionals. HOW TO PLAY It is a 9x9 grid, partially divided by black cells into compartments. The puzzle is most frequently a 9x9 grid made up of 3x3 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 9 exactly once. Main diagonals also contain the digits 1 through 9. Each number in the solution therefore occurs only once in each of three "directions".

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.