1. Only 2 people allowed on the raft,Initially the puzzle seems daunting with a large number of possible moves, however there is in fact very little choice as the wrong moves prevent any further moves. There is only one possible solution produced with the least number of moves. Give it a try before checking out the comments for a hint and the solution.
2. Cop can't leave Thief alone with others,
3. Mom can't be with boys without Dad,
4. Dad can't be with girls without Mom,
5. Children alone can't operate the raft.
Start by clicking the big blue circle on the right.