Alex Chui, a Year 13 student at Tonbridge School in Kent, has taken first place at the International Mathematical Olympiad after achieving a perfect score. He finished ahead of more than 600 participants, marking a major result for Britain in one of the world's best-known school-age maths contests.

The achievement has been described as making Chui the most successful competitor in maths olympiad history. The Olympiad is widely seen as one of the toughest challenges for school-age mathematicians, so a flawless result stands out even at this level.

Chui's victory adds to his growing reputation in elite mathematics competition and puts a British student at the top of a field packed with the strongest young problem-solvers from around the world. His performance also highlights the scale of the competition, with hundreds of entrants battling for the highest rankings.

For Tonbridge School and for British mathematics, the result is a landmark moment. A perfect score at the International Mathematical Olympiad is rare, and Chui's first-place finish will be remembered as an exceptional school-level maths achievement.