Round 1

Twenty questions are asked on the buzzer, all worth one point each. If a contestant misses, any of the other three may buzz in and respond; however, if a second contestant also misses, the host reveals the correct answer. The lowest scorer at the end of this round is eliminated from the game.

Each correct answer is added to a video wall above the contestants' heads, placed so that they cannot see it. These answers are used for all questions in subsequent rounds.

Rounds 2 and 3

Twenty new questions are asked in each round, following the same rules as Round 1. For the benefit of the studio audience and the home viewers, correct answers are removed from the video wall as they are used. The lowest scorer at the end of each round is eliminated.

Final

The last remaining contestant has a chance to win up to £100,000 by answering one last set of 20 questions in 60 seconds. They may pass a question and return to it later if time allows, but missed questions are taken out of play. Before the round begins, the contestant must decide how many questions they think they can answer, with a minimum of 11. If the contestant answers that many questions or more, they win only the prize money for the chosen level; if not, they leave with nothing but receive a consolation prize of a piggy bank.

The prize money levels are as follows.