When bidding "blind", the player's bid, if made exactly by that player, is rewarded with bonus points, while failing to make the bid results in the bonus being subtracted from the player's or team's score. Contract - The result of a player's or partnership's bids for the hand; they are required to take at least that number of tricks during play of the hand. If there is a tie, then all players participate in one more round of play until a winner is decided. When playing solo, one can bid Nil or board. Sandbags are counted as usual. This introduces more uncertainty in bids because usually the person with the kitty tries to void one suit and trump earlier in the game.