Perfect for sudoku fans—the rules for these 100 logic puzzles are simple, and the math is easy. But the puzzles get harder and harder! Once you match wits with area mazes, you’ll be hooked! Your quest is to navigate a network of rectangles to find a missing value. Just Remember: Area = length × width Use spatial reasoning to find helpful relationships Whole numbers are all you need. You can always get the answer without using fractions! Originally invented for gifted students, area mazes (menseki meiro), have taken all of Japan by storm. Are you a sudoku fanatic? Do you play brain games to stay sharp? Did you love geometry . . . or would you like to finally show it who’s boss? Feed your brain some area mazes—they could be just what you’re craving!

The rules are simple . . . The math is easy . . . The puzzles get harder and harder! Hooked on area mazes? YOU’RE IN LUCK! Volume Two delivers 100 more puzzles. Your quest is to navigate a network of rectangles to find a missing value. Just remember: Area = length × width Use spatial reasoning to find helpful relationships Whole numbers are all you need. You can always get the answer without using fractions! Originally invented for gifted students, area mazes have taken all of Japan by storm. Are you a sudoku fanatic? Do you play brain games to stay sharp? Did you love geometry . . . or would you like to finally show it who’s boss? Try area mazes—they could be just what you’re craving!

Race the clock to solve 70 fun puzzles with grade-school math—and genius logic! Welcome, brave math wizard, to the world of area mazes. These clever grids of squares and rectangles are more than meets the eye. Can you find the missing value—using only your powers to add, subtract, multiply, and divide? Just remember: Area = Length x Width Too easy? Race the clock! Puzzle master Naoki Inaba has included three target times for every maze. But don’t worry if you get stuck sometimes . . . just keep at it, and you’ll get better and better. Soon, you’ll be amazing!

Forty mazes with geometric trickery.

Author and professional futurist Karl Schroeder, whose novels Ventus and Permanence have established him as a groundbreaking visionary in hard science fiction, extends his imagination into Larry Niven territory, returning to the same distant future in which Ventus was set, but employing a broader canvas, to tell the story of Teven Coronal, a ringworld with a huge multiplicity of human civilizations. Brilliant but troubled Livia Kodaly is Teven's only hope against invaders both human and superhuman who would destroy its fragile ecologies and human diversity. Filled with action, ideas, and intellectual energy, Lady of Mazes is the hard SF novel of the year. At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

Stimulating and delightful, this collection of puzzles features original and classic brainteasers. The author, a puzzle columnist forLe Monde, specially selected these mind-benders for the widest possible audience, ensuring that they're neither too hard for those without a math background nor too easy for the mathematically adept. Includes solutions.

A colorful collection of the most difficult geometric based puzzles on the market, compiled by Mensa puzzle setters.