After a successful 24-hour online mathematical magic show in 2020, a group of maths communicators are back to do another ambitious and fun 24-hour online show, this time about maths and games. We're raising money for four charities close to our hearts, and one of these is Beat.

Beat is the UK's eating disorder charity. Beat supports anyone with an eating disorder, their friends and family, as well as professionals working with or worried about an individual in their care.

These serious mental illnesses include anorexia nervosa, bulimia nervosa and binge eating disorder. 1.25 million people in the UK have a diagnosed eating disorder. They affect people of all ages and backgrounds, and up to one in four sufferers are male. Eating disorders cost the UK's economy £16.8 billion each year.