Swordfish, the Gordonian Polygon, Alternating Digits, and Jellyfish make these sudoku super-hard!

Puzzles for the masters, featuring an array of Gordonian Rectangles.

Sudoku is the martial art of puzzles. This book presents a collection of energetic enigmas and numerical conundrums. It is suitable for solvers on the go and for anyone and everyone.

Bring a new skill to the fighting repertoire: interaction.

Sending a telegram to puzzle lovers: get ready, because this collection is the greatest thing to happen to sudoku yet! With millions of fans of the original 9x9 number puzzles, there’s always a huge audience waiting with pencils poised for the newest development in the form. This fun and challenging word game variation follows all the traditional sudoku rules, except for one thing: every row, column, and square in the completed grid is also an anagram--so it takes a little extra smarts to finish solving. Cleverly constructed by two of the best puzzle creators in the business, this is sure to be the next sudoku-based hit.

What really wows iPad fans is when their touchscreen does what's impossible on other gadgets: the finger-painting app that turns a cross-country flight into a moving art class, the mini music studio (two-dozen instruments strong, each with motion-induced warble effects), and the portable fireworks display that you sculpt by swiping. Problem is, with tens of thousands of apps available for your iPad, who knows what to download? You can try to sort through a gazillion customer reviews with a mix of 5- and 1-star ratings, but that’s a head-hurting time-waster. The stakes are getting higher, too: instead of freebies and 99-cent trinkets, the price of iPad apps is steadily creeping up and beyond their iPhone predecessors. Best iPad Apps guides you to the hidden treasures in the App Store's crowded aisles. Author Peter Meyers stress-tested thousands of options to put together this irresistible, page-turner of a catalog. Inside these pages, you’ll find apps as magical as the iPad itself. Flip through the book for app suggestions, or head directly to one of several categories we've loaded up with "best of" selections to help you: Get work done Manipulate photos Make movies Create comics Browse the Web better Take notes Outline ideas Track your health Explore the world No matter how you use your iPad, Best iPad Apps will help you find the real gems among the rubble -- so you make the most of your glossy gadget.