This is a collection of over 200 original puzzles created by Peter Grabarchuk - an art director at the puzzles.com website. Arranged from easiest to hardest, they're especially devised for mind-expanding, visual solving and aim to stimulate the readers' potential for 'thinking outside the box.' Arranged from easiest to hardest, they're especially devised for mind-expanding visual solving. All it takes to crack their mysteries are a pencil, a rubber, patience and, of course, boundless imagination! This great variety of puzzles - including floor plans, matchstick puzzles and tangrams - is both entertaining and challenging and also forms a welcome edition to the established "Mensa[registered]" series.