: loop
sleep 20
if { cmp -s chess.out chessout } goto loop
cp chess.out chessout
/usr/games/chess >gorp
restore
score
exit
ed - gorp
v/^..\. /d
g//s///
g/ /1,$s/  */	/
w
q
/usr/chess/new/a.out
input gorp
eh 3
exit
goto loop
