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Safecracker Hints
What if the two sets of keys weigh the same?
1 of 6: If the weight is equal, then one of the keys that wasn't weighed is the heavy one.
2 of 6: Reset the machine by moving the W switch down.
3 of 6: With the two unweighed keys, tip one to the left, and one to the right.
4 of 6: Move the W switch up to weigh the two keys. Make note of which key is heavier.
5 of 6: Reset the keys into the center tray by pushing the W switch down.
6 of 6: Select the correct key, by pushing the numbered button which corresponds with the position of the heavy key.