Books for the smallest room in the house... That generate BIG sales It's clear--people everywhere are sitting and solving! That's why more than 110,000 copies of this amazing series have nearly jumped out of stores. With their amusing shape, great content, and popular price, these compilations are a must-have on every puzzler's shelf. And the quality of the problems, games, and trickery is absolutely superb and fabulously diverse. Go for great word searches, stimulating criss-cross puzzles, brilliant brainteasers; cunning logic games, cannily challenging IQ Tests, mysterious mathamatricks, and lots more.

Love numbers? Then this one’s for you. It offers wildly challenging, brain-busting math puzzles that really test your arithmetic logic. Like a regular crossword, it features a grid that you have to fill in by solving clues. But here, one clue may refer you to another one, which you’ll then have to figure out first to go further. For example, the solution for 21 Down might be: 34 Down Septupled. You’ll then have to go to 34 Down to see what it says. Nothing’s obvious, so you’ll have to think hard and do some smart calculations. In case you need a little help, there are "starting hints” that give you a few answers to get you going.

Even more challenging than Sudoku, Kakuro has become a worldwide craze. This combination of Sudoku with the added mathematical challenge aims to appeal to an even broader range of puzzlers. It includes a page of Unique Sums and over 50 puzzles to keep you busy at lunch, on a tea break or whilst travelling. It is also conveniently sized.

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.

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Long before Sudoku hit the scene, there were Logic Grid Puzzles. Developed by Lewis Carroll, these logic puzzles rely on deducing a complex solution from only a few pieces of information. (Who knew the author of Alice In Wonderland was also a brilliant mathematician and logician?!) Now, you're probably thinking, "Whoa, that all sounds really nerdy!" And you're right. But it's also really addicting. With only a few clues, you'll be able to fill in the entire 6 grid puzzle after you put your brain to work.The puzzles in this book were originally created for the 'Logic Grid Puzzles: Word Games for Brain Training' app and have been downloaded and solved hundreds of thousands of times. But the puzzles are now available for everyone who loves solving them the old fashioned way: with pencil and paper.So grab a cup of coffee, a pencil, and a comfy chair. 210 logic grid puzzles await!