The format was based on a mix of the number puzzle Sudoku and general knowledge questions.
The round ends when the entire grid is completed or if there's one square left (not enough to play one more subround).
Again the fastest team whom locked in the right number gets one point and the right answer to answer a general knowledge question for another point, only this time a correct answer also gives the team the right to nominate members of the opposing team in a sudden death showdown in which the fastest player with the correct number gets one point and stays in the game, with the other player eliminated from the game.
The first team to lose both players is eliminated from the show, regardless of their score to that point.
The third round is Speed Sudoku where two players (one on each team) have 45 seconds each to solve squares on a 6×6 grid, while alternating turns.
The final round gives the winning team three minutes to solve another 6×6 grid for money.
Holmes asks a series of questions in which correct answers earn an attempt to place a number in a highlighted square.