Just when you thought the folks at Mensa had no more fiendishly difficult puzzles, they've come up with a volume that will leave you not only perplexed but begging for mercy! In order to tackle this Compendium of Conundrums, you'll need much more than common sense - you'll need a lot of time and mental stamina as well as cool, relentless logic. Some of the most intricate problems ever devised await you. If you think you're smart, you may be disillusioned - but be brave. You've done the riddles, solved the brain-teasers, and beaten the mind-benders. Now take the ultimate mental challenge and solve the toughest puzzles yet.
