"6 Up 6 Down" is a strategic trick-taking card game played with a standard poker deck from 7 to Ace. The game progresses in rounds: players are initially dealt one card, increasing up to six cards per round, and then decreasing back down to one. Each round, a card is revealed to determine the trump suit. Players predict how many tricks they will win, earning points for accurate predictions and penalized for incorrect ones. The player with the highest score after all rounds wins the game.