Austin Z. Henley Associate Teaching Professor
Carnegie Mellon University [email protected]
@austinzhenley
github/AZHenley
Simulating the ladybug clock puzzle
1/17/2026
A few days ago, 3Blue1Brown posted a 60-second video describing a puzzle...
Imagine that a ladybug lands on the 12 o'clock marker of a clock. It then proceeds to move either clockwise or counterclockwise to the adjacent hour marker, one at a time, and repeats until all hour markers have been visited at least once.
What is the probability that it ends on the 6?
... continue reading