From the inventor of Circular Sudoku come 120 puzzles that are easy, medium, and hard. Rules, strategies, and solutions are included.

Welcome to this superb collection of 100 circle sudoku puzzles! These puzzles all have their own solution towards the back of the book, so if you get stuck take a look there. Here are some solving tips: Place each number from 1 - 8 exactly once in each of the eight concentric circles that compose the puzzle. In addition, each number from 1 - 8 appears exactly once in each of the eight segments of the circle. Each puzzle has one solution that can be reached through logic alone. That's all there is to it!

The name of the game is Sudoku, Japanese for "number place," but no knowledge of Japanese language or arithmetic is required to enjoy the game that has sparked a mania around the world. It’s a fever that is now spreading to the United States, as readers of the New York Post and Los Angeles Times can readily attest. Veterans of other highly-addictive logic games such as Rubik’s cube, Tetris, or Minesweeper will love the fresh challenge of Sudoku. It’s a wordless logic crossword that leaves even the most dedicated puzzle enthusiasts scratching their heads. Here in one volume is all you need to get started—150 Sudoku puzzles (and solutions) along with easy-to-follow instructions and strategies. Solve these entirely with logic and you’ll arrive at the right answer—but be warned: the more you solve, the more you’ll want to play! To solve, fill-in the blanks with the digits 1 through 9 in such a way that each digit appears in each column, row, and 3 x 3 box only once. You need numbers, but no math is involved.

Featuring easy to follow instructions to help you master Sudoku strategy Stretch your mind with a range of puzzles, from easy to diabolically difficult! Complete with puzzle-solving strategies plus OVER 600 PUZZLES, The Big Book of Sudoku For Dummies is the ultimate book for the puzzle fanatic. Whether you're new to Sudoku or a daily puzzle solver, this big book will give you what you want. With over 600 puzzles ranging from the encouragingly easy to the baffling and bewildering, this big book will get newcomers hooked and keep experts entertained. Discover how to * Solve the popular 9 x 9 puzzles - 576 included * Work through the 16 X 16 puzzles - 20 included * Master the Circular puzzle - 20 included * Solve puzzles at 4 difficulty levels: Easy, Tricky, Tough, and Diabolical!

The hottest craze in puzzles! From puzzlemaster and New York Times crossword editor Will Shortz comes sudoku, the new "wordless crossword" puzzle that's taking the world by storm! Once you start, you won't want to stop. These addictive puzzles are easy to explain--just fill the grid with numbers according to the few simple rules--but incredibly fun and engaging to complete. You don't need any mathematics knowledge: Just supply a pencil and an inquisitive mind. This brand-new collection features original sudoku ranging from effortlessly easy to devilishly difficult, along with an introduction from Will Shortz that explains these fascinating puzzles and how to solve them. If you're a crossword fan, a fan of logic puzzles, or just a puzzle lover in general, you will be engrossed and delighted with sudoku!

What do road and railway systems, electrical circuits, mingling at parties, mazes, family trees, and the internet all have in common? All are networks - either people or places or things that relate and connect to one another. Only relatively recently have mathematicians begun to explore such networks and connections, and their importance has taken everyone by surprise. The mathematics of networks form the basis of many fascinating puzzles and problems, from tic-tac-toe and circular sudoku to the 'Chinese Postman Problem' (can he deliver all his letters without traversing the same street twice?). Peter Higgins shows how such puzzles as well as many real-world phenomena are underpinned by the same deep mathematical structure. Understanding mathematical networks can give us remarkable new insights into them all.

Edited by crossword great Shortz, this beautiful book offers 400 easy-to-hard puzzles in a convenient portable size, perfect for carrying in a purse, briefcase, or backpack.