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Continuing the popular Overworked & Underpuzzled series, Killer Sudoku contains almost 200 tricky puzzles requiring a certain amount of logic and skill to solve.
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The Puzzle People
Continuing the popular Overworked & Underpuzzled series, Chill-out Codewords contains hundreds of codeword puzzles perfectly designed to fit into your busy lifestyle.
Continuing the popular Overworked & Underpuzzled series, Serene Sudoku contains almost 200 of the ever-popular Sudoku puzzles to help focus your frazzled mind.
The rooms are perfect for group activity with family and friends. Play either as one of the puzzle-solvers or as the escape-room master, and watch your friends flounder!
Contains everything you need to set your own quizzes or learn for others, with questions on a huge spectrum of categories, from famous faces to wonders of the world.
More than 1,000 multiple-choice questions!
Lai Van Duc Thinh, foreword by Will Shortz
A variety of brand-new puzzle types invented by the author and puzzle writer, Lai Van Duc Thinh.
Master wordsmith and crossword guru David Astle shows how cryptic crosswords can boost your brain power and improve your memory and cognitive capacity.