Hard
Hard Logic Riddles
12 XP

The Two Egg Problem Generalized

8,905 solved 59% solve rate 41% fail rate
You have 2 eggs and a 100-story building. You need to find the highest safe floor. What is the minimum number of drops needed in the worst case?
Only 59% solve this correctly
8,905 attempts
Earn +12 XP for solving
Quick Answer & Explanation
14 drops. Start at

The answer to this riddle is 14 drops. Start at. Difficulty: Hard · Solved by 8,905 puzzle lovers.

14 drops. Start at floor 14, then 27, 39, 50, 60, 69, 77, 84, 90, 95, 99, 100. If egg breaks, go back and test linearly.
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