checkers.6

unix v7是最后一个广泛发布的研究型UNIX版本

.TH CHECKERS 6
.SH NAME
checkers \- game
.SH SYNOPSIS
.B /usr/games/checkers
.SH DESCRIPTION
.I Checkers
uses standard notation for the board:
.PP
.ce
BLACK
.nf
.TS
center, box;
r|r|r|r|r|r|r|r.
////	1	////	2	////	3	////	4
////		////		////		////
_
5	////	6	////	7	////	8	////
	////		////		////		////
_
////	9	////	10	////	11	////	12
////		////		////		////
_
13	////	14	////	15	////	16	////
	////		////		////		////
_
////	17	////	18	////	19	////	20
////		////		////		////
_
21	////	22	////	23	////	24	////
	////		////		////		////
_
////	25	////	26	////	27	////	28
////		////		////		////
_
29	////	30	////	31	////	32	////
	////		////		////		////
_
.TE
.ce
WHITE
.fi
.PP
Black plays first.
The program normally plays white.
To specify a move, name the square moved from
and the square moved to.
For multiple jumps name all the squares touched.
.PP
.PP
Certain commands may be given instead of moves:
.TP \w'reverse\ \ 'u
reverse
Reverse roles; the program takes over your pieces.
.TP
backup
Undo the last move for each player.
.TP
list
Print the record of the game.
.TP
move
Let the program select a move for you.
.TP
print
Print a map of the present position.