いやどす (Iyados) is a trick-taking game in which players place an "Insert" card into their hand (as originally dealt, without rearranging). Cards to the left of the Insert card are referred to as the "normal" cards, which can be used to lead to a trick or when a player cannot follow suit.
However, cards to the right of the Insert card are the "refuse" cards. These can only be played when a player could follow suit, but announces that they refuse to. Moreover, the number of "refuse" cards chosen also becomes a player's bid.
If a player cannot play a card because they are out of "normal" cards when they need to play one, they are eliminated from the round.
At the end of a round, points are awarded based upon 3 factors, including how many players were eliminated and how close a player came to hitting their bid. After a number of rounds equal to the number of players, the person with the most points wins.