Can you solve it? Are you smarter than Britain’s teenage brainiacs?

A colourful puzzle from the UK girls' maths olympiad

Update: the solutions can now be read here.

Today's puzzle celebrates the UK's outstanding performance at last week's European Girls' Mathematical Olympiad, which is the world's most prestigious female-only maths competition for pre-university students.

Yuhka Machino and Jenni Voon, both aged 17, placed 6th and 7th overall, each earning gold medals. Overall, the UK ranked fifth out of 55 countries, behind Russia, the USA, Peru and Romania. (The event was held online, allowing 17 non-European countries to participate as guests.)