Israeli Whist is a four player card game. A round begins by dealing out all the cards (without jokers) to four players. There are two rounds of bidding: a round to determine the trump suit, and a round to determine the contract. The object of the game is to win the exact number of tricks in the contract.
During the bidding that determines the trump suit, each player can say "pass", or to bid. Bidding includes the number of future tricks given a certain trump suit. The bid that determines the trump is the one that after it there are three "passes" in a row. If all four players say "pass" a new round begins.
After the trump suit is determined, there is another bidding round in which the "contracts" are determined. The player that determined the trump suit, must declare the number of tricks to be at least the number he declared in the previous bidding round. The last player is not allowed to make a bid that makes the sum of all four bids 13.
If a player makes his contract (with zero as the exception), he receives the number of tricks squared plus ten. If a player does not make his contract (with zero as the exception), he gets minus ten points for each deviation from his" contract.
A player that bids zero and makes it, receives 50 points in an "under" game (sum of bids is less than 13) and 25 in an "over" game (sum of bids is more than 13). A player that bids zero loses 50 points if he wins one trick. If he wins more than one trick, for each additional trick he won, he receives 10 points.