## 24

**grand mathematical challenges**of the 21st century. But be warned...these problems are hard. In the first of two articles, Chris Budd explains how to hit the bigtime.

*Plus*finds out about her career path.

*Plus*finds out about the role of mathematical

**symmetry in chemistry**.

**cricket**is particularly rich in statistics and rankings. It has probably not escaped your attention that the World Cup of cricket has just finished in South Africa (Australia won - again) and so to mark the occasion, Rob Eastaway tells

*Plus*what it takes to be the best.