1. Lock setup
Plate 1 is the bottom plate, so the list below is shown from top to bottom. Use -3 for far left, 0 for center, +3 for far right. Goal: all plates at 0. Left move increases position by +1, right move decreases it by -1.
2. Interactions
Read each row like this: When I move Plate X, what happens to the other plates? Click cells to cycle: — no effect, Same same direction, Opp. opposite direction.
3. Solution
Enter lock data and press Solve.