Five-suit bridge called "Castle Bridge", in which the fifth suit of Castles looked like a Rook chess piece and was colored green. This pack reused the diamond courts for the new suit. The manual that came with this deck did not use Marseille's rules but Ammiel F. Decker's 1933 rules. Ultimately, the complexity of adding a new suit to the game led to it falling out of popularity by the summer of 1938. The rules are similar to regular contract bridge but the new fifth suit is ranked higher than spades but lower than no-trump in bidding. Decks usually came with one
Bid whist e.g., an ace, king, queen. When that player runs out of hearts, the next time hearts are played, he will throw off a low diamond. This typically tells his partner he has some help for him in diamonds. Skilled players typically "pull trumps". This means they start off playing the trump suit and "pulls" all the trumps from the opponents. Once trumps are pulled from the opponents, the bidding player will begin playing his "offsuit". A player will not continue to play trumps when the opponents are out of trumps, saving his trumps to cut another suit that is played.