dds - double dummy solver frontend
This program is a command line interface for Bo Haglund's Double Dummy Solver
It has four useful stand-alone options:
- Option -playdd, to play any deal double dummy.
- Option -giblib. For any deal, to get maximum trick
values for all possible contracts and leaders (these are the 20 trick
values as for giblib).
- Option -tricks. For specified deal, to get maximum
trick values for all possible contracts and leaders (these are the 20
trick values as for giblib).
- Option -gen. This is to generate deals, without or
with up to 20 possible trick values.
path for 'giblib' input file
- Optional arguments [options] are one or more
- verbose where applicable
- -1-13 (default -1). Number of tricks to be won by the side
to play, -1 means that the program shall find the maximum number. For
equivalent cards only the highest is returned.
- solution 1/2/3 (default 3). How many card solutions
target=1-13, solutions=1: Returns only one of the cards. Its returned score
is the same as target when target or higher tricks can be won. Otherwise,
score -1 is returned if target cannot be reached, or score 0 if no tricks
can be won.
target=-1, solutions=1: Returns only one of the optimum cards and its score.
target=0, solutions=1: Returns only one of the cards legal to play with
score set to 0.
target=1-13, solutions=2: Return all cards meeting target. Their returned
scores are the same as target when target or higher tricks can be won.
Otherwise, only one card is returned with score -1 if target cannot be
reached, or score 0 for all cards legal to play if no tricks can be won.
target=-1, solutions=2: Return all optimum cards with their scores.
target=0, solutions=2: Return all cards legal to play with scores set to 0.
target irrelevant, solutions=3: Return all cards that can be legally played
with their scores in descending order.
- 0/1 (default 1). DLL mode of operation. This mode does not
affect the DLL if there are multiple choices for cards to play. If there
is just one card to play, or multiple cards that are all equivalent, this
mode determines whether or not the DLL will search to find the score.
mode=0: Do not search to find the score if the hand to play has only one
card, including its equivalents, to play. Score is set to -2 for this
card, indicating that there are no alternative cards. This mode is very
mode=1: Always search to find the score. Even when the hand to play has only
one card, with possible equivalents, to play.
- s/h/d/c/n, this overrides the file (default=n)
- w/n/e/s, this overrides the file (default=w) but used only
when no cards have been played
- 1/2/... deal number in giblib file. Only one of
-deal or -name should be specified.
- deal with 'name=str' in giblib file. Only one of
-deal or -name should be specified.
- play deal choosing between DDS alternatives
- time all deals in file for sol=1/2/3, print stats
x - hex digit, total tricks by n-s
c - contract s/h/d/c/n
n - number of deals
time the first n deals in the giblib file, having total tricks x at contract
c, for target=-1 sol=1 mode=1 and for the specified/default leader, each
deal is validated.
- validate all deals from d1 to d2 in giblib file for
target=-1 sol=1 mode=1. 1. if -all is given, this is done for all
of the 20 trick values even if some of them are '-'. 2. if -all is
not given, this is done only for those trick values which are not
- like -giblib, but for single deal specified by
-name=str -deal=d or option
- Generate deals:
- (required) n=number of deals to generate. output is written
to a file (see below)
- (default 0) seed for random generator
- (default=52) number of cards generated per deal, must be
multiple of 4
- 0,1,...,20 (default 1), number of tricks values to set
- Generate output is written to a file:
The program was named ddd by its author. As there is already some other ddd
package in Debian (the gdb frontend) it was renamed to dds, the name of the