1.\" Copyright (c) 1980, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)backgammon.6 8.1 (Berkeley) 5/31/93 33.\" $FreeBSD: src/games/backgammon/backgammon/backgammon.6,v 1.7.2.1 2001/07/22 11:01:21 dd Exp $ 34.\" $DragonFly: src/games/backgammon/backgammon/backgammon.6,v 1.3 2007/03/11 19:05:31 swildner Exp $ 35.\" 36.Dd May 31, 1993 37.Dt BACKGAMMON 6 38.Os 39.Sh NAME 40.Nm backgammon 41.Nd the game of backgammon 42.Sh SYNOPSIS 43.Nm 44.Op Fl hnrwb 45.Op Fl pr 46.Op Fl pw 47.Op Fl pb 48.Op Fl t Ar term 49.Op Fl s Ar file 50.Sh DESCRIPTION 51This program lets you play backgammon against the computer 52or against a "friend". 53All commands are only one letter, so you don't need to type a carriage return, 54except at the end of a move. 55The program is mostly self-explanatory, 56so that a question mark (?) will usually get some help. 57If you answer `y' when the program asks if you want the rules, 58you will get text explaining the rules of the game, some hints on strategy, 59instructions on how to use the program, 60and a tutorial consisting of a practice game against the computer. 61A description of how to use the program can be 62obtained by answering `y' when it asks if you want instructions. 63.Pp 64The possible arguments for backgammon 65(most are unnecessary but some are very convenient) 66consist of: 67.Bl -tag -width ".Fl pr" 68.It Fl h 69get a description of possible arguments and exit 70.It Fl n 71don't ask for rules or instructions 72.It Fl r 73player is red (implies 74.Fl n ) 75.It Fl w 76player is white (implies 77.Fl n ) 78.It Fl b 79two players, red and white (implies 80.Fl n ) 81.It Fl pr 82print the board before red's turn 83.It Fl pw 84print the board before white's turn 85.It Fl pb 86print the board before both player's turn 87.It Fl t Ar term 88terminal is type 89.Ar term , 90uses 91.Pa /usr/share/misc/termcap 92.It Fl s Ar file 93recover previously saved game from 94.Ar file 95.El 96.Pp 97If 98.Ar term 99has capabilities for direct cursor movement (see 100.Xr termcap 5 ) 101.Nm 102``fixes'' the board after each move, 103so the board does not need to be reprinted, 104unless the screen suffers some horrendous malady. 105Also, any `p' option will be ignored. 106(The `t' option is not necessary unless the terminal type does not match 107the entry in the 108.Pa /usr/share/misc/termcap 109data base.) 110.Sh QUICK REFERENCE 111When the program prompts by typing only your color, 112type a space or carriage return to roll, or 113.Bl -tag -width ".Ic s-f" 114.It Ic d 115to double 116.It Ic p 117to print the board 118.It Ic q 119to quit 120.It Ic s 121to save the game for later 122.El 123.Pp 124When the program prompts with 'Move:', type 125.Bl -tag -width ".Ic s-f" 126.It Ic p 127to print the board 128.It Ic q 129to quit 130.It Ic s 131to save the game 132.El 133.Pp 134or a 135.Em move , 136which is a sequence of 137.Bl -tag -width ".Ic s-f" 138.It Ic s-f 139move from 140.Ic s 141to 142.Ic f 143.It Ic s/r 144move one man on 145.Ic s 146the roll 147.Ic r 148separated by commas or spaces and ending with a newline. 149Available abbreviations are 150.Bl -tag -width ".Ic s-f1-f2" 151.It Ic s-f1-f2 152means 153.Ic s-f1,f1-f2 154.It Ic s/r1r2 155means 156.Ic s/r1,s/r2 157.El 158.El 159.Pp 160Use 161.Ic b 162for bar and 163.Ic h 164for home, 165or 0 or 25 as appropriate. 166.Sh FILES 167.Bl -tag -width ".Pa /usr/share/misc/termcap" -compact 168.It Pa /usr/games/teachgammon 169rules and tutorial 170.It Pa /usr/share/misc/termcap 171terminal capabilities 172.El 173.Sh AUTHORS 174.An Alan Char 175.Sh BUGS 176The program's strategy needs much work. 177