The secret is to find a way to keep opponents guessing while still being unpredictable. With enough practice, bluffing can become a crucial component of your Ruluckyland slotsmmy strategy, giving you the advantage over even the most skilled players. To succeed in Rummy, one must have a solid understanding of the value of card runs and sets. While sets are made up of three or four cards of the same rank from different suits, runs are made up of three or more cards in the same suit in a row.