MCPE seed in front of you, where they generate one of the most difficult places to survive. To survive here is very difficult, both physically and psychologically. Too little food, resources and space. But, if you feel the power, and you know that you are an experienced player, then you can try to stretch as long as possible.
Using this seed You will have to wait for the test, namely the survival in harsh conditions.
Seed is designed for 0.16.0
After spawning you will immediately find yourself on the island:
There is enough room, and only one (!) tree with 4 blocks of wood. There is also a cane and a few different mobs. I think it is quite interesting to try to survive in such conditions.