Recently I discovered the Decktet playing card pack, and have been enjoying the way that suits and ranks combine to make for some very clever games. However, I think I would be able to use better strategies if I could remember what cards existed!
I have noticed that the basic deck contains one card of each rank/suit combination, and that the extended deck contains two pawns and two courts of each suit, along with The Excuse.
I was wondering if there was some further logic behind the card arrangement, or some easy way to remember that there is, e.g., a nine of moons/suns, an eight of moons/suns, but no seven of moons/suns.


