To find out which cards are still in play, it's important to keep track of the cards that are drawn & discarded. For players of all ages, the game osattaraniffers a compelling and difficult experience by fusing elements of skill & chance. Sets and Runs Forming. With the cards you have been dealt, try to establish sets or runs by looking for opportunities to combine them, and try to discard any high-value cards that are not a part of that formation.