Hard
Hard Logic Riddles
14 XP

The Crossed Wires

17,584 solved 63% solve rate 37% fail rate
10 wires run through a wall. You have a battery and bulb on one side and can tie wires together on the other. What is the minimum trips between sides to identify all 10 wires?
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Quick Answer & Explanation
2 trips. Tie wires

The answer to this riddle is 2 trips. Tie wires. Difficulty: Hard · Solved by 17,584 puzzle lovers.

2 trips. Tie wires in groups on one side (1+2+3+4 pattern). Test from other side to identify groupings. Make one more trip to resolve within groups.
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