Hehe! Of course it can. I would never put up something impossible. Quiet a family they are ! The rules are: - Dad can't be left with any of the daughters. If so, he beats them. - Mum can't be left with any of the sons. If so, she beats them. - The thief can't be left alone without the police, if so, the thief beats anyone in the family. - Only the policeman, mum or dad can operate the raft. - Only two persons on the raft at the same time. - Everyone should be moved over to the other side of the river. - The raft cannot go anywhere without mum, dad or the policeman. Hints that are not that revealing: - Of course, mum, dad or the policeman can go on the raft by themselves. - You must go back and forward more times than you first believe. I counted and it takes 17 rides before you are done.