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Gray is a puzzle minecraft map with 15 levels, where you use the WASD keys to control a square, and get out.
When you walk onto a tile, it will change color, gray to light gray, and light gray to gray. It seems slimple, but it's not.
For every level, you get a limited amount of moves, so you can't just keep going back and fourth to cover everything.
You need to think of the most efficient way of getting to the exit.