Information

A collection of stimulating brainteasers which first appeared week by week in The Observer magazine. Fascinating background information is provided for each puzzle, and the various techniques involved in solving the problems are set out with many useful hints. You are also shown the ways in which each puzzle can be extended to provide hours of extra interest and pleasure.

The Author
Garry Marshall is a regular contributor to computing magazines, including Computing Today and Computer and Video Games, and was contributing consultant to The Home Computer Course, Britain's first patchwork on computing.

Front cover illustration by Godfrey Dawson

First Sentence

Most people think of the prime task of computers as dealing with numbers.