Hey This is MY own redstone device thats trick intruders to come in then they die.

You don't need a redstone chest all you need is a normal one since intruders can spot redstone chests.Enjoy :D

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The way it works is when the intruder comes in he has to break the block above the chest,when that happens the redstone torch will turn off inverting the signal to the piston retracting it then the tnt ignites then drops on the player,then blows up.Also in the chest their is dirt in the letters LOL.