The 15 Puzzle Book contains an illustrated history of one of the most popular and important mechanical puzzles of all time. It can be argued that the 15 Puzzle

This book constitutes the refereed proceedings of the 15th Annual European Symposium on Algorithms, ESA 2007, held in Eilat, Israel, in October 2007 in the cont

This classic crossword series returns with 300 never-before-published puzzles! Simon & Schuster published the first-ever crossword puzzle book in 1924. Now, mor

200 PUZZLES.Train your Brain With Sudoku, Logic Puzzles, Word Games & More!Level: Medium to Medium HardThe Benefits of Puzzle Solving: According to research the

Give your brain a series of workouts that'll make it bigger and better! This colossal collection of more than 200 puzzles simultaneously provides a relaxing atm