Provided by: dds_2.1.1+ddd105-2_amd64 bug

NAME

       dds - double dummy solver frontend

SYNOPSIS

       dds file [ options ]

DESCRIPTION

       This program is a command line interface for Bo Haglund's Double Dummy Solver (DDS).

       It has four useful stand-alone options:

       1.     Option -playdd, to play any deal double dummy.

       2.     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).

       3.     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).

       4.     Option  -gen.  This  is  to generate deals, without or with up to 20 possible trick
              values.

OPTIONS

       file path for 'giblib' input file

       Optional arguments [options] are one or more of:

       -v     verbose where applicable

       -target=d
              -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.

       -sol=d solution 1/2/3 (default 3).  How many card solutions SolveBoard returns:

              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.

       -mode=d
              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 fast.

              mode=1:  Always search to find the score. Even when the hand to play has  only  one
              card,  with possible equivalents, to play.

       -trumps=t
              s/h/d/c/n, this overrides the file (default=n)

       -leader=l
              w/n/e/s,  this overrides the file (default=w) but used only when no cards have been
              played

       -deal=d
              1/2/... deal number in  giblib  file.   Only  one  of  -deal  or  -name  should  be
              specified.

       -name=str
              deal  with  'name=str'  in  giblib  file.   Only  one  of  -deal or -name should be
              specified.

       -playdd
              play deal choosing between DDS alternatives

       -timeall
              time all deals in file for sol=1/2/3, print stats

       -timeg=xcn
               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.

       -giblib=d1-d2[-all]
              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 '-'.

       -tricks
              like -giblib, but for single deal specified by -name=str -deal=d or option

       Generate deals:

       -gen=n (required) n=number of deals to generate.  output is written to a file (see below)

       -genseed=s
              (default 0) seed for random generator

       -gencards=c
              (default=52) number of cards generated per deal, must be multiple of 4

       -gentricks=t
              0,1,...,20 (default 1), number of tricks values to set randomly

       Generate output is written to a file:
              gen-genseed-ndeal-gencards-gentricks.txt

NOTES

       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 library used.

SEE ALSO

       dealer(6), deal(6).

                                                                                           DDS(6)