The idea of the game is that two players get across their respective board of five cards by predicting whether the next card will be higher or lower than the preceding one. To get control of the board, they have to guess the answer to a question. The question is a general knowledge question, which has numerical answer and is read by the compere (on the fly question). First contestant must answer and the opponent has to say higher or lower.
The contestant in control is shown the first card in the row of five, the so-called "base card,". The contestant then guessed whether the next card in the row was higher or lower, and continued to do so as long as he or she guessed correctly. An incorrect guess resulted in a loss of control, The opposing contestant then had a chance to play from his or her base card,. Either contestant could also elect to "freeze" their position if they were unsure of the next card; this would both prevent the opponent from playing and reset the contestant's base card to the frozen card
If neither contestant had guessed all the cards in his or her row correctly, or if one had frozen his or her position, play continued with another toss-up question. If the contestants still had not cleared their row of cards by the last question of the round, that question was played as "sudden death." The winner of the sudden death question could either play their cards or pass to their opponent, If either contestant guessed incorrectly, their opponent won by default.