How can all six creatures get across to the other side of the river in a way that guarantees that they all arrive there with the forest intact?

Three hobbits and three orcs are on a river bank. The hobbits and orcs need to cross over to the other side of the river. They have for this purpose a small rowboat that will hold just two. There is also this problem: if the number of orcs on either river bank exceeds the number […]