Creator of Puzzles - Big Book Calcudoku 480 Hard Puzzles


Book Description

Calcudoku (also known as "Mathdoku") is a mathematical and logical puzzle loosely similar to Sudoku. The objective is to fill the grid in with the digits 1 through N (where N is the number of rows or columns in the grid) such that: - Each row contains exactly one of each digit. - Each column contains exactly one of each digit. - Each bold-outlined group of cells (block) contains digits which achieve the specified result using the specified mathematical operation: addition (+), subtraction (-), multiplication (×), and division (÷). - Unlike Killer Sudoku, digits may repeat within a block.







The 3D Sudoku Puzzle Book


Book Description

3D Sudoku is the ultimate challenge for an fan of Sudoku puzzles. With three times as many numbers than normal Sudoku, follow the colored lines and complete the rows and boxes with the numbers 1-9. If youre a fan of Sudoku, then you will love this great new collection of over 300 ultra challenging 3D Sudoku puzzles!







The Big Book of Puzzles


Book Description




Ai Escargot


Book Description

This book contains AI Escargot, the world famous sudoku puzzle which became the most difficult sudoku puzzle known in 2006. There are also several hints for solving AI Escargot in the shortest and most logical way. In addition, the book has 166 other sudoku puzzles in 11 categories. This makes it very convenient to find out your own level and to learn more! The author, Arto Inkala, is a puzzle creator and a doctor of science in the field of applied mathematics.




Will Shortz Presents The Huge Book of Hard Sudoku


Book Description

Can't get enough of Sudoku? This book is for you! It contains three hundred challenging and devilishly difficult Sudoku puzzles in a portable paperback. Features: - 300 hard Sudoku puzzles - Big grids for easy solving - Edited by legendary puzzlemaster Will Shortz




Absolutely Nasty® Kakuro Level Three


Book Description

Kakuro is a puzzle type in which sums are given and solvers must deduce the numbers in the individual boxes. This title is suitable for hardcore kakuro devotees.




Simon & Schuster Mega Crossword Puzzle Book #19


Book Description

Simon & Schuster celebrates ninety-five years of crossword puzzle excellence with 300 new, never-before-published Thursday to Sunday-sized brain breakers. Sharpen your pencils—unless you dare to use a pen. In 1924, Simon & Schuster published its first title, The Cross Word Puzzle Book. Not only was it the publisher’s first release, it was the first collection of crossword puzzles ever printed. Today, 95 years later, Simon & Schuster’s legendary crossword puzzle legacy continues with a brand-new collection of 300 crosswords, which offer hours of challenging fun for puzzle solvers of every level. Created by the best contemporary constructors—and edited by top puzzle master John M. Samson—Simon & Schuster Mega Crossword Puzzle Book #19 is designed with convenience in mind and features perforated pages so you can tear out puzzles individually and work on them on-the-go. With its timeless and unique collection of puzzles, this super-sized book is sure to delight long-time puzzle stalwarts and new enthusiasts alike.




The Colossal Book of Short Puzzles and Problems


Book Description

The renowned provocateur of popular math presents a collection of his widely recognized short puzzles--along with a few new ones--that explore chess, physics, probability, and topology, among other topics.