Switchboard Shift '79
Puzzle · Route each incoming call to the right trunk line before the board overheats.
Score000000
Best000000
Streak0
Strikes0 / 3
Level1
AudioOFF
Incoming Call
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Trunk Routing Rules
Match the first digit of the call prefix to a trunk line.
- Line 1
0, 1, 2, 3 - Line 2
4, 5, 6 - Line 3
7, 8, 9
Tip: every 8 successful routes advances the shift and remaps all lines.