This is another Professor Layton puzzle, from the first game, the Curious Village. This one was the first puzzle that I was stuck on, and it took me nearly an hour to actually solve it. In it, there are three wolves and three chickens which must cross a river.
“Get the three wolves and three chickens to the other side of the river while obeying the following conditions.
No more than two animals can ride the raft at the same time.
There must be at least one animal on the raft in order for it to move.
If more wolves than chickens stay on either side of the river, the wolves will eat the chickens, and you’ll have to start over.
You can move the raft as many times as you like, but this feat can be accomplished in as few as 11 moves.”