The "Card Deck" consists of three packs of cards. The first pack contains 18 black, 6 green, 6 yellow and 6 blue options. The other two packs both consist of six options each of the numbers 1 to 6.
The first time a throw from the card deck is requested, the three packs of cards are shuffled by the computer and set aside. The top card from each pack is then taken. Every consequent time that a throw from the card deck is requested, the computer takes the next card from each pack. Once all 36 cards from each pack have been exhausted the computer reshuffles them ready for the next throw from the card deck.