THE BRIDGE DISTRIBUTION RULE 
How
do the cards in a particular suit divide between the Defenders? This
information
is extremely valuable when playing the hand. It lets the Declarer make
the right choice at the right time. There is a Bridge Distribution Rule
that will help us determin the most likely split in an outstanding
suit.
The first part of the rule states: if the opponents have an ODD
number
of cards between their two hands, the suit will tend to split as evenly
as possible. Let us say the Defenders have 7 Hearts between them.
Then
since 7 is an ODD number, the Heart suit will tend to split 3/4. This
3/4
split is much more likely to occur than a 0/7 or 1/6 or 2/5 split. (see
% Table below.)
The second part of the Bridge Distribution Rule states: if the opponents have an EVEN number of cards between their two hands, the suit will tend not divide evenly. (Except in the case of 1/1.) Thus if the Defenders have 4 Clubs between them, 4 being an even number, the Club suit will tend to split 3/1 not 2/2. 
Bridge is not necessarily the remedy for insomnia. Playing Bridge late at night and into the early morning hours can lead to various sleep disorders. Go to bed with a ruler to find out how long you sleep. Then you can reduce or increase your Bridge playing time. And remember, the best cure for insomnia is to get plenty of sleep. 
DISTRIBUTION OF OUTSTANDING CARDS
% TABLE



2 cards will
split
1/1 52% 2/0 48% 
3 cards will split
2/1 78% 3/0 22% 

4 cards will
split
3/1 50% 2/2 40% 4/0 10% 
5 cards will split
3/2 68% 4/1 28% 5/0 4% 

6 cards will
split
4/2 48% 3/3 36% 5/1 15% 6/0 1% 
7 cards will split
4/3 62% 5/2 31% 6/1 6% 7/0 1% 
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