Try puzzles from the world puzzle championships, where teams of solvers from all around the world compete to find that year's fastest and best puzzle solver. Compare your own puzzle-solving times against past world championship winners, and find out where you stand on a world scale. Try some of the world's toughest puzzles, designed to challenge the very best solvers. No language skills or general knowledge required - all the puzzles are designed to work for any solver from any country in the world. Discover some of the most exciting and innovative new puzzles from the world's most creative puzzle setters. The book concludes with an entire round from a competition as a final challenge.