Master-Derp

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Okay... let's try a harder one. WITH ONLY ONE POSSIBILITY MWAHAHA! Steve is trying to find his way out of a cave! He came down three blocks, dug down sixteen blocks, and ended up in a dark cave.   If he tries to mine up, he will loose all his blocks (he wants to keep)! If he mines down, he will burn in lava. If he walks forward, he will die by mobs. If he walks back, who knows? The only way out would be a direct tunnel west. Going west, he would end up 1,454 blocks underground. How many blocks does he need to get out?

You, Steve, three wolves, one dog, and two sheep are standing by a river. You and Steve need to get them across. If you leave the wolves or the dog alone with the sheep, they will kill the sheep. If the wolves are left alone, they will run away. If the dog is left alone, it will stay seated. If the sheep are left alone, they will wonder a few feet but stay near the river. Steve and you have the same duties: keeping the animals still and calm. If one of you are with the animals, they won't fight or run away. How do you get all animals across?