Challenge yourself against this varied compilation of more than 200 puzzles designed to test your brainpower to its limit. The revered intelligence organisation, Mensa, have worked with Gareth Moore to put together a supreme test of reasoning. These brand-new puzzles will provide hours of entertainment for anyone who enjoys a rigorous mental workout. With a wide variety of traditional and non-traditional logic puzzles, from Battleships and Masyu to Slitherlink and Skycraper, you will find a fresh challenge on every page.