The map was originally built with moss stone and cobblestone. Was later updated with a more varied palette. The concept/puzzle in it is based around the idea of "Spot the Difference". Usually, there are differences in the symmetrical copies of the map and you have to locate and use those differences to progress forward.

The map can be found on my usual building spot, zero.minr.org in the Puzzles section of Free for All. I'd ask you not to post solutions here or anywhere because it goes against both my own policy and the policy of the server it is built on.

I think rickyboy320 helped on it. Anyway, good luck, have fun. On that server, it is worth 2 points.