Overview
Two teams of two contestants each compete through five rounds to build up separate prize banks. At the start of each round, the teams choose one member to play. A picture is displayed on a large circular LED screen set into the studio floor, and the contestant has 30 seconds to place a gold ring on a spot named by the host. Successfully doing so (defined as having any portion of the correct spot within the inner circumference of the ring) adds money to the team's bank. In each successive round, the ring size decreases and the money at stake increases. The non-participating teammate may offer advice as desired.
Examples of questions include:
- Given an unlabelled map of Scotland, mark the location of Loch Ness.
- Given an unlabelled timeline from 1901 to 2000, mark the year in which Muhammad Ali won a gold medal in boxing at the Summer Olympics.
- Given a photograph of the Golden Gate Bridge and an incomplete reflection of it in the water below, mark the spot where the reflection of a specified point should appear.
Each team has two forms of assistance ("lifelines") that may be used once per game. Before any attempt to place a ring, the teammate not participating in a question may press a button to signal that they want to use a lifeline. The options are:
- Flip the Floor: A second question is presented, and the team then decides whether to play it or keep the original one.
- Team of Five: Each team brings a group of five supporters to the studio. The team's group members use individual tablet computers to indicate their guesses at the correct answer; these guesses are briefly displayed on the floor screen.
Series 1
Each completed question increases the team's bank by one level (£1,000, £2,500, £5,000, £10,000, £25,000). The team begins with five rings and loses one for every unsuccessful placement. One team plays at a time and can only move on to the next round by completing the current one; their turn ends when they have either completed the fifth round or lost all their rings. The maximum potential bank is £25,000, obtained by completing all five rounds.
Series 2 to Series 4
Each team has one turn in every round, and successful completions add a set amount to the bank that increases from one round to the next (£1,000, £2,500, £5,000, £7,500, £10,000). In addition, if one team misses a question, the opponents can steal the money at stake by correctly re-positioning the ring within 15 seconds.
The maximum potential bank is £52,000, obtainable if one team completes all five rounds and steals all available money from the opponents.
Final
The team with the higher bank is given control for this round; in the event of a tie, a coin toss decides control. One final question is presented, and the team in control may either play it or pass to the opponents. Each team is given one ring, with the larger one going to the leaders, and the smaller one going to the losers after 5 rounds. In case of a tie, both teams receive identical rings.
One member of the team playing the question has 30 seconds to place the ring as instructed. If succeed, they will win their entire bank and the opponents get nothing. If they fail, they will get nothing and the opponents win their own bank instead.
