I know... You Don't

I Know... You Don't is a fast-paced, cooperative deduction card game for 3 to 7 players where everyone tries to figure out a hidden pattern. One player acts as the Rule Keeper, selecting a secret rule that ranges from simple color sequences to complex logic puzzles, and places a starting card down as a clue. The remaining players must test their theories by laying down cards from their hands; correct cards stay on the table to help build the pattern, while incorrect cards bounce back to the player. The goal is to crack the code and empty your hand first, but betting wrong means getting stuck with all your cards.