look carefully at what both the safe and the signal generator are doing to figure out how they should be connected Watch the signals on the left to see which inputs need to be red or green to produce the output shown on the safe on the right. It will cycle through 8 different combinations, and you must find the combination of inputs from the left that will create the result shown on the right for each one. In the beginning, only one of the inputs from the left will cause any change for each output on the right." On the first level, just grab three connectors and place them between the input and the safe. On further levels you will need to use the various logic gates to make sure the safe gets the right signal to unlock it. nine levels now available... more to come including AND/OR/XOR/NOR/NAND! Feedback welcome!
