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dds \- double dummy solver frontend
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This program is a command line interface for
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Bo Haglund's Double Dummy Solver (DDS).
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It has four useful stand-alone options:
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Option \fB\-playdd\fP, to play any deal double dummy.
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Option \fB\-giblib\fP. For any deal, to get maximum trick values
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for all possible contracts and leaders
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(these are the 20 trick values as for giblib).
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Option \fB\-tricks\fP. For specified deal, to get maximum trick values
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for all possible contracts and leaders
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(these are the 20 trick values as for giblib).
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Option \fB\-gen\fP. This is to generate deals,
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without or with up to 20 possible trick values.
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path for 'giblib' input file
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Optional arguments [\fIoptions\fP] are one or more of:
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verbose where applicable
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Number of tricks to be won by the side to play, \-1 means that the program
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shall find the maximum number. For equivalent cards only the highest is returned.
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solution 1/2/3 (default 3).
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How many card solutions SolveBoard returns:
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target=1-13, solutions=1: Returns only one of the cards. Its returned score is
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the same as target when target or higher tricks can be won. Otherwise, score
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\-1 is returned if target cannot be reached, or score 0 if no tricks can be
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target=\-1, solutions=1: Returns only one of the optimum cards and its score.
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target=0, solutions=1: Returns only one of the cards legal to play with score
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target=1-13, solutions=2: Return all cards meeting target. Their returned
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scores are the same as target when target or higher tricks can be won.
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Otherwise, only one card is returned with score \-1 if target cannot be
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reached, or score 0 for all cards legal to play if no tricks can be won.
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target=\-1, solutions=2: Return all optimum cards with their scores.
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target=0, solutions=2: Return all cards legal to play with scores set to 0.
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target irrelevant, solutions=3: Return all cards that can be legally played
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with their scores in descending order.
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DLL mode of operation. This mode does not affect the DLL if there are multiple
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choices for cards to play. If there is just one card to play, or multiple cards
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that are all equivalent, this mode determines whether or not the DLL will
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search to find the score.
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mode=0: Do not search to find the score if the hand to play has only one card,
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including its equivalents, to play. Score is set to \-2 for this card,
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indicating that there are no alternative cards. This mode is very fast.
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mode=1: Always search to find the score. Even when the hand to play has only
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one card, with possible equivalents, to play.
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.\"mode=2: As for mode=1, but the transposition table contents is reused from the
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.\"preceding SolveBoard call. Requires that target is the same as for the
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.\"preceding call and is not target=\-1. The parameter solutions must be set to 1,
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.\"deal must be the same, except that deal.first for the second call is partner to
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.\"deal.first in the first call.
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.\"1st call: SolveBoard(deal, 10, 1, 1, &fut1), deal.first=1, i.e. East leads.
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.\"2nd call: SolveBoard(deal, 10, 1, 2, &fut2), deal.first=3, i.e. West leads.
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s/h/d/c/n, this overrides the file (default=n)
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w/n/e/s, this overrides the file (default=w)
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but used only when no cards have been played
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1/2/... deal number in giblib file.
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Only one of \fB\-deal\fP or \fB\-name\fP should be specified.
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deal with 'name=str' in giblib file.
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Only one of \fB\-deal\fP or \fB\-name\fP should be specified.
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play deal choosing between DDS alternatives
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time all deals in file for sol=1/2/3, print stats
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.BR \-timeg=\fIxcn\fP
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\fIx\fP - hex digit, total tricks by n-s
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\fIc\fP - contract s/h/d/c/n
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\fIn\fP - number of deals
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time the first n deals in the giblib file,
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having total tricks x at contract c,
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for target=\-1 sol=1 mode=1
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and for the specified/default leader,
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each deal is validated.
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.BR \-giblib=\fId1\fP\-\fId2\fP[\-all]
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validate all deals from d1 to d2 in giblib file
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for target=\-1 sol=1 mode=1.
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1. if \fB\-all\fP is given, this is done for all of
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the 20 trick values even if some of them are '\-'.
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2. if \fB\-all\fP is not given, this is done only for
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those trick values which are not '\-'.
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like \fB\-giblib\fP, but for single deal specified
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by \fB\-name\fP=str \fB\-deal\fP=d or option
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(required) n=number of deals to generate.
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output is written to a file (see below)
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.BR \-genseed=\fIs\fP
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(default 0) seed for random generator
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.BR \-gencards=\fIc\fP
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(default=52) number of cards generated per deal,
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must be multiple of 4
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.BR \-gentricks=\fIt\fP
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0,1,...,20 (default 1), number of tricks values to set randomly
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Generate output is written to a file:
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gen\-\fIgenseed\fP\-\fIndeal\fP\-\fIgencards\fP\-\fIgentricks\fP.txt
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The program was named ddd by its author. As there is already some other
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ddd package in Debian (the gdb frontend) it was renamed to dds, the name
added
removed
debian/dds.6
