1.\" $OpenBSD: gomoku.6,v 1.15 2014/09/08 01:27:54 schwarze Exp $ 2.\" 3.\" Copyright (c) 1994 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" Ralph Campbell. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" @(#)gomoku.6 8.2 (Berkeley) 8/4/94 34.\" 35.Dd $Mdocdate: September 8 2014 $ 36.Dt GOMOKU 6 37.Os 38.Sh NAME 39.Nm gomoku 40.Nd game of 5 in a row 41.Sh SYNOPSIS 42.Nm gomoku 43.Op Fl bcdu 44.Op Fl D Ar debugfile 45.Op Ar inputfile 46.Sh DESCRIPTION 47.Nm 48is a two player game where the object is to get 5 in a row horizontally, 49vertically or diagonally on a 19 by 19 grid. 50By convention, black always moves first. 51With no arguments, 52.Nm 53will display a playing board and prompt for moves from the user. 54The interface is visual and straightforward; you move to a spot 55using the 56.Xr hack 6 57motion keys 58.Em hjklyubn 59and select it with either 60.Sq space 61or 62.Sq return . 63The game will beep if you select a location that is already occupied. 64To save the game, type 65.Sq S 66and to quit, type 67.Sq Q . 68The optional file 69.Ar inputfile 70can be used to restore a saved game. 71.Pp 72The options are: 73.Bl -tag -width Ds 74.It Fl b 75This option sets background mode. 76Input moves are read from standard input, 77the computer picks a move, and prints it to standard output. 78The first input line should be either 79.Dq black 80or 81.Dq white 82to specify whether 83.Nm 84has the first move or not respectively. 85This option was intended for game tournaments where a referee program 86handles the board display and pits one program against another. 87.It Fl c 88Computer versus computer. 89.Nm 90will play a game against itself. 91This is mostly used for testing. 92.It Fl D Ar debugfile 93Print the debug information to 94.Ar debugfile 95instead of to the standard output. 96.It Fl d 97Print debugging information. 98Repeating this option more than once yields more detailed information. 99.It Fl u 100User versus user. 101This is mostly used for testing. 102.El 103.Sh AUTHORS 104.An Ralph Campbell 105.Sh BUGS 106The program is far too slow and uses far too much memory for the quality of 107game it provides. 108.Sh ACKNOWLEDGEMENTS 109The board display routines were based on the 110.Nm goref 111program written by Peter Langston. 112The user interface was based on Eric S. Raymond's interface to 113.Xr bs 6 . 114