SUDO-Q was a BBC quiz show hosted by Eamonn Holmes for four series between 5 December, 2005 and 23 March, 2007. The format was based on a mix of the number puzzle Sudoku and general knowledge questions. Gameplay Three teams of two (originally three) compete. There are four rounds in the game. Round 1 The first round is based on general knowledge questions and a 4x4 Sudoku grid. Teams are shown the grid, with four numbers already placed. Then a square gets highlighted and the teams lock in what… (More on Sudo-q)