FEMTO
There is a book of mathematical games I'm rather fond of, even though it never made the best-seller lists. We called it "What's My Game?", and included in it was a two-player cardgame called Divide and Conquer for which the entire equipment is a single suit of playing cards. This seemed to me to be just about the most minimal cardgame anyone could devise - until I discovered Pico, which is a German cardgame using just 11 cards.
In case anyone think Pico is still just a little too big I've put together ideas from both these games and come up with a new one, called Femto, which needs just eight cards.
Although the game is so small there are plenty of interesting things to be discovered in Femto, so I hope lots of people get in touch with their observations.
6 iMagazine / April, 2013