The game of SHOC (which stands for Spades, Hearts, Diamonds (diamond shape for the 'O') and Clubs, is a game of trading shares in each of the four suits of a pack of playing cards. Two packs are used (not provided in game) , with one representing the share certificates and the other being used to induce market changes which are recorded on the dials.Each player takes a turn as broker, and sells certificates for points or buys them back until the market closes the next player then takes over as broker.After a round of each player being broker, the points are totaled for each player with the greatest amount winning.This game was produced during wartime it is unavailable now but it can be played without the components provided and with just pen and paper. - BoardGameGeek