Here are the rules.
Only 2 people can be on the raft.
The dad cannot be alone with the daughters without the mom
The mom cannot be alone with the sons without the dad
The prisoner cannot be alone with anyone without the police officer
Only the Mom, Dad, and Policeman can drive the raft.
To make the raft cross the river, hit the red circle on the other side of the river.
http://freeweb.siol.net/danej/riverIQGame.swfTook me almost ten minutes to figure it out.