Join the ranks of the geniuses, and leave behind the merely brilliant! Try to figure out 20 tough types of puzzles like the ones found at international puzzle competitions. These are puzzles that require no verbal skills to solve; you just need your logical brain. How hard can they be? Simple arithmetic and a sharp pencil (with a full eraser) are all you need, plus paying close, close attention. Start by following twisting paths made by worms crawling across triangular grids. Then forecast weather patterns by detecting rain cloud patterns in a numbered diagram. Find lost fleets of ships in grids where only a few different shapes are visible. Rearrange dominoes according to a diagram (problem is, the edges of the tiles have been removed). More fun awaits you with hex loops, skyscrapers, lighthouses, and other suddenly fiendish objects.

Mensa Math & Logic Puzzles

Humor & Entertainment

Rios, Michael

Tuller, Dave

Puzzles & Games

Sterling

02 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.

Sit & Solve Cross Sums (Sit & Solve Series)

Never met a puzzle you couldn't solve? With this comprehensive compendium of mind-boggling brain busters, you may have finally met your match. Choose from among hundreds of crosswords, math and logic problems, and IQ exams to test your mental mettle. Diverse and demanding, the puzzles in this collection will challenge you to observe, predict, generalize, reason, assume, compare, and recall. Sharpen your wits on old favorites that have baffled enthusiasts for years or venture into unchartered territory with new puzzles poised to join the classics. Helpful illustrations, a straightforward answer key and convenient spiral binding combine to ensure a pleasant puzzle solving session. Most entries can be solved with a pen and pencil or handy items like scissors, toothpicks, and coins. Whether a springboard for party fun or a source of private pondering, this collection provides hours of entertainment for all who dare to put their brain power to the test.

The Ultimate Clever Puzzle Book

DiSpezio, Michael A.

Carter, Philip J.

Russell, Kenneth A.

Carlton, Olivia

Give your brain a workout on the type of brainteasers that challenge the best solvers at the World Puzzle Championships. They're tough, but fun, and the feeling of satisfaction you get when you succeed is simply unbeatable. Some of the puzzles are oldies but goodies, like battleships--and its many variants--where you search for a fleet hidden within a grid. In "Eminent Domain," try to determine which blanks cells are owned by the numbered ones. For "Hex Loops," locate a path that travels through adjacent hexagons: the trick is, it has to end where it started, and the lines can't touch or cross. From Snaky Tiles to Spiral Galaxies, these Mensa-level conundrums will get your mind in shape.

Challenge Your Brain Math & Logic Puzzles

Puzzlewright

An old favorite--Mensa Math &amp; Logic Puzzles--gets a brand-new look: it's now in color! And the puzzles are fantastic: they're the kind of challenge found at the World Puzzle Championships, and they require no language to solve. For example, you are given a grid of dots that has some numbers (0, 1, 2, or 3) in them. You need to connect the dots in one continuous path so that each number is surrounded by that many lines. So a "3" means that three of the four sides around it must be connected. All the puzzles are similar abstract exercises, and all have unique solutions that can be reached using pure logic. They're difficult--and really satisfying exercise for your brain.

Mensa Exercise Your Mind Math & Logic Puzzles

Sit & Solve Easy Sudoku (Sit & Solve Series)

This pocket-sized book is stuffed with sudoku grids that are quite difficult to solve-good things really do come in small packages! It's the perfect way to spend those few spare minutes that pop up now and again. Are you up to the challenge?

Sit & Solve Hard Sudoku (Sit & Solve Series)

When the million-selling series meets the most popular puzzles around, sales are sure to sizzle! Since the Sit & Solve series arrived in stores, these amusingly-shaped books have sold so many and so quickly they just won’t stay on the shelves.  And the coffee-cup inspired Sip & Solves are well on their way to the same success. So, they’re a natural format for sudoku, the puzzles that are rapidly replacing crosswords on everyone’s list of favorite pastimes.             It’s a brainteasing sensation that’s a no-brainer for any seller!

Sip & Solve: Sudoku (Sip & Solve Series)

At home, while commuting, during lunch hours…people around the world are eagerly working on Sudoku puzzles whenever and wherever they can! 
 Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we’ve indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked: by different colored belts. This is the White Belt volume, a great introduction for anyone who wants to find the perfect beginner’s challenge.
 It’s impossible to complete only one sudoku at a time, because solving them is habit-forming!

White Belt Sudoku® (Martial Arts Puzzles Series)

Puzzlewright Press

With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game that's appearing in major newspapers all over! Taking a page from karate--another Japanese art--each title is graded by color: White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the super-tough solvers. And because each book has an amazing 300 puzzles, the fun can go on for hours.

Green Belt Sudoku® (Martial Arts Puzzles Series)

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Books by Rios, Michael