If you've played the Redstone Predicament map before, this one won't surprise you! It is inspired by that map. The goal is to Open the Iron Door at the end of the map! In order to accomplish that, lead the redstone signal all the way there. But sometimes... that's not so easy: You have to go through different mini-puzzles and figure out how to activate the signal that leads to victory.
To break it down into smaller pieces, there are Gold Blocks on the map, representing checkpoints: try to reach one Gold Block at a time, slowly working your way towards the end goal.
The default gamemode is Survival Mode since Version 1.1, because it seems like you cannot change Redstone Repeater settings in Adventure Mode. Make sure to play in /gamemode 0, but DO NOT break any blocks!
Updates
Version 1.0: Map created.
Version 1.1: Changed the default gamemode to Survival Mode from Adventure Mode to be able to change Redstone Repeater settings.