Kakuro are language-free number puzzles that use pure logic and require just simple arithmetic to solve. This book contains 150 kakuros. It takes cue from the belt colors in martial arts: white is for novices, green for intermediates, brown for very accomplished players, and black for those consummate experts who crave a challenge.

What could be more appealing to Mensa members--or anyone who enjoys a good challenge--than a cunning test of intelligence and logic? That's exactly what these 250 puzzles provide. The trick to kakuro is in making it all add up: the game begins with a grid that looks like a crossword, except that some squares contain small numbers in the corner. Fill in all the empty boxes using the numbers 1 to 9 without repeats so that the sum of each horizontal set of digits equals the number in the black triangle to its left, and the sum of each vertical set of digits equals the number in the triangle above it. The kakuro puzzles start out simple...and get more difficult as the book progresses.

Kakuro is sometimes described as a "number crossword" or "mathematical crossword," and indeed the puzzle grids resemble those of crossword puzzles. In contrast to Sudoku, where you start with each square blank; clues to filling them in are in the horizontal and vertical totals given for each row and column, and in "Kakuro blocks," combinations of the only numbers that will match certain totals. Just as in Dudoku, logic plays a big role....and there is only one correct solution.

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.

Kakuro Mania is Here! Crazy for sudoku? Try kakuros—more fun and more challenging than sudoku, they’re the hottest mind-boggling number puzzles yet to baffle the world! To solve kakuro puzzles, also called cross sums, takes logic, skill, and concentration. Pick up a pencil and start right away; you won’t notice the time passing as your attention is riveted on filling in the empty boxes with the missing numbers. Just one warning: Kakuros are so much fun to solve, you’ll never want to stop.

Kakuro are language-free number puzzles that use pure logic and require just simple arithmetic to solve. This book contains 150 kakuros. It takes cue from the belt colors in martial arts: white is for novices, green for intermediates, brown for very accomplished players, and black for those consummate experts who crave a challenge.

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.

Word squares have been around for literally thousands of years (the oldest known example has been found in ruins across the Roman Empire, including the walls of Pompeii). Each word square is a group of words, all of the same length, arranged so the word in row one is the same as that in column one; row two the same as column two; and so forth. Easy word squares are four-by-four; much harder are eight-by-eights; given a few letter clues, the goal is to fill a perfect word square. In this book, puzzle master Alastair Chisholm has produced 201 brainteasers--from Delicious to Vicious--that will stretch your vocabulary and challenge your puzzle solving skills.

This book focuses on a wide range of innovations related to Cybersecurity Education which include: curriculum development, faculty and professional development, laboratory enhancements, community outreach, and student learning. The book includes topics such as: Network Security, Biometric Security, Data Security, Operating Systems Security, Security Countermeasures, Database Security, Cloud Computing Security, Industrial Control and Embedded Systems Security, Cryptography, and Hardware and Supply Chain Security. The book introduces the concepts, techniques, methods, approaches and trends needed by cybersecurity specialists and educators for keeping current their security knowledge. Further, it provides a glimpse of future directions where cybersecurity techniques, policies, applications, and theories are headed. The book is a rich collection of carefully selected and reviewed manuscripts written by diverse cybersecurity experts in the listed fields and edited by prominent cybersecurity researchers and specialists.