.TH CHESSCLOCK 1
.UC
.SH NAME
chessclock \- a poor man's chess clock
.SH SYNOPSIS
.B chessclock
[
.B \-m
moves ] [
.B \-t
time ] [
.B \-M
contmoves ] [
.B \-T
conttime ]
.SH DESCRIPTION
.I Chessclock
is an electronic chessclock for crt's.
The space bar switches the clock.
The clock can be paused by `p' and continued by `c'.
The `q' key quits the clock.
The `!' key pauses the clock and forks a shell on one input line.
The environment variable SHELL is used if set, otherwise /bin/sh.
Any other key describes these options.
.PP
By default
.I chessclock
implements five minute chess.
Each player has at most five minutes to play the game.
A move limit can be specified with
.B \-m
after this many moves have elapsed the clocks are reset and the
same number of moves must be played in the same amount of time.
A different amount of time (in minutes) can be given with the
.B \-t
option.
.PP
To give a different continuation strategy after the basic period
one can give the continuation time with the
.B \-T
flag and the number of moves in a continuation period with
.B \-M.
If either of these is specified, the other defaults to the basic period
quantity.
.PP
Finally, argument times may be include `:' to give times in
minutes and seconds rather than just minutes.
.SH FILES
.ta 2i
/bin/sh	for
.B !
.SH AUTHOR
Bill Joy
.SH BUGS
Unequal settings of the clock for black and white are not possible.