The first in a new series: hard puzzles for serious sudoku solvers. Do you have what it takes? These 200 challenging sudoku puzzles from Will Shortz will keep y

Expert Sudoku is an all-new collection of handcrafted puzzles for the expert puzzle-solver. This is the book that challenges skilled solvers and Sudoku-lovers a

Google Android dominates the mobile market, and by targeting Android, your apps can run on most of the phones and tablets in the world. This new fourth edition

"First published in the United States in 2011 by Think Geek, Inc."--Title page verso.

Murder Most Puzzling is a gorgeous and witty book that invites readers to play detective and solve a series of absorbing, murder-mystery-themed puzzles. Readers