cf001.pl Data for http://thinks.com/crosswords/number/xfig001.htm for Model Problems/prob021/models/crossfig.html
cf002.pl Data for http://thinks.com/crosswords/number/xfig002.htm for Model Problems/prob021/models/crossfig.html
cf009.pl Data for http://thinks.com/crosswords/number/xfig009.htm for Model Problems/prob021/models/crossfig.html