I reached the same solution.
This looks like a riff on the Monty Hall problem, whose solution also hinges on the fact that the host opens a door randomly or non-randomly depending on your initial choice.
This is exactly what I thought when I read the problem.
I reached the same solution.
This looks like a riff on the Monty Hall problem, whose solution also hinges on the fact that the host opens a door randomly or non-randomly depending on your initial choice.
This is exactly what I thought when I read the problem.