19 hours ago, BuddhasDragon23 said:

Fairdincoomz

English please.

On 9/26/2025 at 3:41 AM, npts2020 said:

Seems obvious to me. The one initially chosen has a 33 1/3 % chance of being the correct choice. The one left has a 50% chance of being correct.

(using 3 choices of course)

But this is not the question.

The question is should you change your choice ?

The answer is yes because there is only one door that Monty can open if your were initially correct, but there are two doors that Monty could open if you were not.

So you are twice as likely to be right with the door he did not open as sticking to the door you originally chose.

The reasoning follows KJW's method in the spoiler.