Exchange Games: What is Exchange Hi Lo and how do I play it?

Exchange Hi Lo is Betfair's version of the popular and exciting card game in which a player has to predict whether the next card is higher or lower. However, in Betfair's unique variation, it's a perfect strategy played by a computer that decides whether the next card will be higher or lower, and you bet on how far it'll go before it predicts incorrectly. 

The computer's strategy is simple; if there are an equal number or more cards above the last dealt card, then it will go higher, if there are more cards below, it will go lower. For example, if the first card dealt is 5, there are 3 cards that are lower and 9 that are higher, so the computer will predict that the next card will be higher. 

Each game uses 13 cards, one of each face value from a suit of spades. The game starts and the first round of betting occurs with all the cards placed face down from the randomly shuffled suit. Players can place back or lay bets on how far they think the computer will correctly predict the cards before it predicts incorrectly. 

Each round of betting lasts for a specific period of time before unmatched bets are cancelled and the next card is turned up. The amount of time remaining in the rounds is indicated by the movement of the progress bar just above the top row of cards (please note that this should only be used as a guide). 

At the start of the first round of betting, no cards are displayed and betting is permitted on all outcomes. At the end of the first round, all unmatched bets are cancelled and the "Start" card is turned. All selections for which an outcome is guaranteed are settled and the second round of betting then commences. At the end of the second round of betting, all unmatched bets are cancelled and Card 1 is turned. The game ends if the prediction is incorrect, otherwise the game continues, with guaranteed outcome selections being settled prior to the next round of betting. The game continues like this for up to a total of 12 rounds of betting.