Whist overview
        The classic game of whist is a plain-trick game without bidding for 4 players in fixed partnerships.
        There are four players in two fixed partnerships. Partners sit facing each other.
        A standard 52 card pack is used. The cards in each suit rank from highest to lowest: 
        A K Q J 10 9 8 7 6 5 4 3 2.
        The player to the dealer's left leads to the first trick. Any card may be led. The other players,
        in clockwise order, each play a card to the trick. Players must follow suit by playing a card of
        the same suit as the card led if they can; a player with no card of the suit led may play any card.
        The trick is won by the highest trump in it - or if it contains no trump, by the highest card of
        the suit led. The winner of a trick leads to the next.
        When all 13 tricks have been played, the side which won more tricks scores 1 point for each trick
        they won in excess of 6.
        The partnership which first reaches 7 points wins the game.