1MAKEHYPER(6)                     Games Manual                     MAKEHYPER(6)
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NAME

6       makehyper - generate a GNU Backgammon Hypergammon position database
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SYNOPSIS

9       makehyper [-nvh] [-f filename] [-r filename] [-c chequers] [-t thresh‐
10       old]
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DESCRIPTION

13       Hypergammon is a variation of backgammon with a much reduced number of
14       chequers (usually three).  It's possible to fully analyse this simpli‐
15       fied game and generate a database of position evaluations in order to
16       play perfectly.  makehyper generates such a position evaluation data‐
17       base.
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19       Since many of the positions are in contact, it's not possible to gener‐
20       ate the database in one pass; instead, makehyper iterates until the
21       position evaluation converges.  The convergence threshold can be
22       changed with the -t option.
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OPTIONS

25       -f filename, --outfile filename
26              Write the hypergammon database to filename.  Default is
27              "hyper<number of chequers>.bd", the name expected by GNU
28              Backgammon when using the database.
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30       -r filename, --restart filename
31              Restart calculation of the database from the given file, which
32              should be a checkpoint from an earlier run.
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34       -c chequers, --chequers chequers
35              Set the number of chequers in the game.  The default is 3, for
36              normal 3-chequer hypergammon.
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38       -n, --no-checkpoint
39              Do not write a checkpoint file after each iteration.
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41       -t threshold, --threshold threshold
42              Set the convergence threshold.  The default is 1e-5.
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44       -v, --version
45              Show version information and exit.
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47       -h, --help
48              Display usage and exit.
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SEE ALSO

51       gnubg(6)
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AUTHORS

54       Joseph Heled, Øystein Johansen, Jørn Thyssen, and Gary Wong, with the
55       assistance of many others <bug-gnubg@gnu.org>.
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57       This manual page was written by Russ Allbery <rra@debian.org>, for the
58       Debian GNU/Linux system (but may be used by others).  It may be redis‐
59       tributed and/or modified under the terms of version 2 of the GNU Gen‐
60       eral Public License as published by the Free Software Foundation (the
61       same license as GNU Backgammon).
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65                                  2015-04-12                      MAKEHYPER(6)