(?:`)?(?:copyright`\(c\)`1995\-2009`gerd`neugebauer)?(?:`)?cwpuzzle\.`dtx`is`distributed`in`the`hope`that`it`will`be`useful,`but`without`any`warranty\.`no`author`or`distributor`accepts`responsibility`to`anyone`for`the`consequences`of`using`it`or`for`whether`it`serves`any`particular`purpose`or`works`at`all,`unless`he`says`so`in`writing\.`\.`everyone`is`granted`permission`to`copy,`modify`and`redistribute`cwpuzzle\.`dtx,`provided`this`copyright`notice`is`preserved`and`any`modifications`are`indicated\.