Solution to last month's probability puzzle.

3Blue1Brown

A ladybug puzzle solution reveals a counterintuitive result: when a ladybug randomly walks around a clock face coloring numbers, each position (1-11) has equal probability (1/11) of being the last colored. The key insight transforms the problem by waiting until the ladybug reaches a neighbor of any target number, then recognizing this becomes equivalent to a random walk question that's identical for all positions.

Solution to the ladybug clock puzzle