This is the map that shows the most secure Minecraft PE door. This card contains five combinations for opening a door.
This door cannot be cracked, but as long as there is a combination, it will not take more than a minute. You can try to crack the code yourself, but this probably will not work.
If you didn’t succeed, you can go through another door and look at the code. You can see how the door is arranged and build it in your world, but you can also find a video lesson in which everything is described in detail.