The Next Gatekeeper

Logic Level 1

Before you solve this question, solve The Two Gatekeepers

Before you, Merlin and your friend, Albert reach the real exit, now you see two doors guarded by one gatekeeper. You know that you can't fight him and win (he is HUGE). You know that one door leads to the exit, and the other leads to death (again?), but you don't know which is which. You don't know whether he lies or he tells the truth. You can only ask ONE question

Now Albert starts crying. "There was two. Now there is ONE only!" he said, and then continued crying.

You try to think of a question (while ignoring the cries). Does a question exist so that you can leave peacefully?

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 7 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.