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rachel.1
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rachel.1
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.\" Copyright 2024 Oguz Ismail Uysal <oguzismailuysal@gmail.com>
.\"
.\" This file is part of Rachel.
.\"
.\" Rachel is free software: you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published by
.\" the Free Software Foundation, either version 3 of the License, or
.\" (at your option) any later version.
.\"
.\" This program is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public License
.\" along with this program. If not, see <https://www.gnu.org/licenses/>.
.
.TH RACHEL 1 "26 Jun 2024"
.SH NAME
rachel \- Countdown solver
.SH SYNOPSIS
.PP
\fBrachel\fP [\fB\-s\fP \fIskip_count\fP] \fInumbers\fP \fItarget\fP
.PP
\fBirachel\fP \fInumbers\fP \fItarget\fP
.SH DESCRIPTION
.B rachel
solves number puzzles seen in the game show \fICountdown\fP. It takes the
following arguments.
.TP
\fB\-s\fP \fIskip_count\fP
Skip
.I skip_count
answers. Using this option you can explore alternative solutions to a puzzle.
Note that shorter answers are found earlier.
.TP
\fInumbers\fP
The numbers to be used for reaching the target. One to six positive integers
provided as separate arguments.
.TP
\fItarget\fP
The target number. A positive integer.
.PP
.B irachel
is an interactive front-end for \fBrachel\fP. It allows you to re-invoke
.B rachel
with different values for
.I target
and
.I skip_count
in fewer key presses.
.SH EXAMPLES
.nf
.ft CW
$ rachel 5 5 10 15
10 + 5 = 15
$ rachel -s 1 5 5 10 15
5 * 5 = 25
25 - 10 = 15
.ft
.fi
.SH "EXIT STATUS"
Other than 0,
.B rachel
returns the following exit values.
.TP
1
No answer.
.TP
2
An error occured.
.SH "SEE ALSO"
https://en.wikipedia.org/wiki/Countdown_(game_show)
.SH BUGS
When skipping answers,
.B rachel
may find the same answer several times with slight variation.