Skip to main content

All Questions

2 votes
2 answers
179 views

Quirky chasing problem along train network [closed]

Echidna and Numbat are friends, so they decide to go on vacation together to visit Central American caves and volcanos. But these two friends have very different traveling philosophies. Numbat prefers ...
Astrid's user avatar
  • 21
15 votes
1 answer
1k views

Hunter chasing a fox on a graph

This is a variant of the sleeping princess puzzle. There are fifteen foxholes, connected by underground tunnels as shown below. A fox is sleeping in one of them. Every day, a hunter checks one of ...
Mike Earnest's user avatar
  • 32.5k