Victoria Coren Mitchell hosts the quiz where knowledge only gets you so far – logic and lateral thinking are the vital extra ingredients.

Two returning teams fight for a place in the next round. To get there, all they have to do is answer a series of questions, including working out what comes next in this sequence: The Bosphorous, The Menai Stait and The Golden Gate...

Victoria Coren Mitchell hosts the quiz where knowledge only gets you so far – logic and lateral thinking are the vital extra ingredients.

This is a rematch: the fiendish series structure means these teams met in a previous round. As ever, the trick is finding connections – for example, between Hotel Marbez, Mount Everest, Horseshoe Falls and Chester Football Club.