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Man Pages


Manual Reference Pages  -  MAKEHYPER (6)

NAME

makehyper - generate a GNU Backgammon Hypergammon position database

CONTENTS

Synopsis
Description
Options
See Also
Authors

SYNOPSIS

makehyper [-nvh] [-f filename] [-r filename] [-c chequers] [-t threshold]

DESCRIPTION

Hypergammon is a variation of backgammon with a much reduced number of chequers (usually three). It’s possible to fully analyse this simplified game and generate a database of position evaluations in order to play perfectly. makehyper generates such a position evaluation database.

Since many of the positions are in contact, it’s not possible to generate the database in one pass; instead, makehyper iterates until the position evaluation converges. The convergence threshold can be changed with the -t option.

OPTIONS

-f filename, --outfile filename
  Write the hypergammon database to filename. Default is "hyper<number of chequers>.bd", the name expected by GNU Backgammon when using the database.
-r filename, --restart filename
  Restart calculation of the database from the given file, which should be a checkpoint from an earlier run.
-c chequers, --chequers chequers
  Set the number of chequers in the game. The default is 3, for normal 3-chequer hypergammon.
-n, --no-checkpoint
  Do not write a checkpoint file after each iteration.
-t threshold, --threshold threshold
  Set the convergence threshold. The default is 1e-5.
-v, --version
  Show version information and exit.
-h, --help
  Display usage and exit.

SEE ALSO

gnubg(6)

AUTHORS

Joseph Heled, [/O]ystein Johansen, J[/o]rn Thyssen, and Gary Wong, with the assistance of many others <bug-gnubg@gnu.org>.

This manual page was written by Russ Allbery <rra@debian.org>, for the Debian GNU/Linux system (but may be used by others). It may be redistributed and/or modified under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation (the same license as GNU Backgammon).

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