Man page - makehyper(6)

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Manual

MAKEHYPER

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
AUTHORS

NAME

makehyper - generate a GNU Backgammon Hypergammon position database

SYNOPSIS

makehyper [ -nh ] [ -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.

-h , --help

Display usage and exit.

AUTHORS

Joseph Heled, Øystein Johansen, Jørn 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).