Format
The game was basically the same as the American Tic Tac Dough with a similar set. Two contestants played the game with the champion playing cross ("X"), and the challenger playing noughts ("O"). They faced a noughts & crosses (tic-tac-toe) game board of nine subjects. Player took turns (starting with the champion) picking categories and answering questions in those categories.
Correct answers placed his/her symbol in the board and added money to the pot; center box was worth £40 while the outer boxes were worth £20. First player to get three in row (across, up and down, or diagonally) won the game and became champion.
The first ever winner on the show was Bill Sykes of Sale who won £460, and the highest amount won in the show's history was £2,360.
Read more about this topic: Criss Cross Quiz