Binary is a series of 4 games that use a unique deck of cards. One side of the deck is all black the other side is all white. The games require a basic knowledge of binary numbers, which the rules provide. Binary I - a basic game of each player dealing out 4 cards and the highest number takes the pot. (an introduction into binary numbers) Binary II - similar to Binary I, but players lay the 4 cards one at a time. Binary III - similar to Binary II, but players lay the 4 cards one at a time, allowing players to raise if they believe they will have the highest number Binary IV - players across from the table play with the same 4 cards to change it into the highest number. Each plays from their own perspective.