## Articles

**Toby O'Neil**describes how the mathematical theory of dimension gives us a way of approaching the question.

**Colin Adams**asks when is a molecule knot a molecule? and what happens if you try to build a knot out of sticks?

**Jochen Blath**and

**Peter Mörters**discuss one particularly interesting aspect of the game - the doubling cube. They show how a model using Brownian motion can help a player to decide when to double or accept a double.

**Rachel Thomas**looks at Shannon's life and works.

**C. J. Budd** and **C. J. Sangwin** show us how to create mazes, and explain why mazes and networks have much in common. In fact the study of mazes and labyrinths takes us into the dark territory of murder, suicide, adultery, passion, intrigue, religion and conquest...

**Matthew Keeling**describes some of the mathematical developments that have improved our understanding and predictive ability.