Hands up anyone who hasn’t secretly harboured the thought their child is gifted. Well, prepare to get realistic. For, as of last night, we know what a bona fide child genius looks like and, moreover, how high the bar is to earn that title.

Twelve-year-old Rahul Doshi memorised an entire pack of cards in order in an hour, offered the work of Edward Jenner as a specialist subject, and proved he could spell diaphoresis, to be crowned the cleverest child in Britain after he won Channel 4’s Child Genius competition, which tests 20 youngsters aged eight to 12 on their spelling, maths, memory and knowledge of science and history.

Hosted by Richard Osman, competitors are whittled away in rounds until only the smartest remain. It’s like the Hunger Games, but with ridiculously complicated mental arithmetic and brain-crippling anagrams.