Of all the ways to open up a lock, there are some tried and true methods. Keys, combinations, RFIDs, picks, and explosives have all had their time and place, but now someone else wants to try ...

You’re in a hurry and you need to get a door unlocked. You take out your keys…but wait, which door is this one for? Is this for the shed, or the safe? We’ve all been there. But with this ...

Ever pick up a ring of keys and wonder where they all go and what they open? Color-coded keys make opening locks a breeze. Just put a dab of the same color paint or the same color adhesive dots on ...

I like this board. I think it has a niffty layout to it. Let's solve this murdous puzzle, shall we? When you start the level it should look like the image above. A simple way to introduce color coded ...