DUMMY BRIDGE
Is played by three players.
The player who cuts the lowest card deals first, and has the
Dummy throughout the first rubber; the player who cuts the next
lowest card has the Dummy for the second rubber.
The dealer can make any of the ordinary Bridge declarations on his
own hand, or he can leave it to the Dummy, in which case he must
look at the dummy, without exposing it, and must make the
declaration as follows:
1. If Dummy holds three or four aces, he must declare "no
trumps."
2. If Dummy has not three aces, he must declare his numerically
longest suit.
3. If Dummy has two or three suits of equal length, he must
declare the strongest, reckoned by addition of the pips, an ace
counting eleven, and each of the other honors ten.
4. If Dummy's equal suits are also of equal strength, reckoned as
above, then the most valuable of them must be declared.
The adversaries can double as at ordinary Bridge, and the dealer
has the right of re-doubling, although he has seen two hands; but
he may not look at his own hand again before deciding whether to
re-double. The hand is then played as at ordinary Bridge.
When either of his opponents deals, the player of Dummy must
look first at the hand which has to lead, and must double or lead to
the first trick before looking at his other hand.
The game can be played in either of the two following ways:
1. As soon as the first card is led, Dummy's hand is exposed on
the table, and the game proceeds as at ordinary Bridge.
2. As soon as the first card is led, both the Dummy's hand and the
dealer's partner's hand are exposed on the table, and the hand is
played Double Dummy.
When it is Dummy's deal, his partner looks at his own hand first,
and makes the declaration or passes it precisely as in the case of
his own deal, the only difference in the play being that the first
lead is by the player on his right, and is consequently through his
hand instead of. up to it.
In all other cases the Rules of Bridge apply.

DOUBLE DUMMY
The rules are the same as in Dummy Bridge, with the following
exceptions:
The dealer deals for himself each time, never for his Dummy; and
the hand on his left always leads first, and has the first right of
doubling.
Neither player may look at more than one of his two hands before
the first card is led, excepting in the case of the dealer when the
call is passed to Dummy.
Either player is liable to the penalty of a revoke in his own hand,
but not in his Dummy.