in the realm of card games, we observe an intriguing phenomenon where the concept of non-disclosure operates akin to a strategic element, relegating certain information to the shadows to maintain competitive advantage. before the pre-beginning of a game, a dialogue among participants about the rules might subtly include or exclude specific strategies, crafting a shared understanding without revealing all. this enables players to begin again each game with a fresh outlook, guarding their strategies under the veil of non-disclosure to ensure every match is a unique blend of known and unknown elements, enhancing the overall enjoyment and challenge.