I am locked in a secret room with a bomb inside. There is a door to get out of here. I have only one try to get out of here. There is a note stuck to the door.

 you only have One chance. The keY is here. Use this  to decode it.

 From kowim
  • 1
    $\begingroup$ Has a correct answer been given? If so, please don't forget to $\color{green}{\checkmark \small\text{Accept}}$ it :) $\endgroup$
    – Rubio
    Commented Mar 30, 2018 at 15:25
  • 1
    $\begingroup$ The title used to include "(my first puzzle)". I've removed that -- this sort of thing doesn't really belong in a puzzle title, nor in the puzzle itself. But congrats on your first puzzle, Macky ben Jonah, and welcome to Puzzling! $\endgroup$
    – Gareth McCaughan
    Commented Apr 7, 2018 at 11:46

1 Answer 1


The ciphertext is:


It decodes to:


It is a Vigenere cipher, with a key of you, which are the capitalized letters in the clue.
So I assume you enter the password water in the door keypad to get out?

  • $\begingroup$ I am assuming it is correct, but I am not sure if he knows how to mark answers correct. Good job :) $\endgroup$
    – Azync
    Commented Mar 27, 2018 at 21:38
  • $\begingroup$ You can also decode the signature. $\endgroup$ Commented Mar 28, 2018 at 7:01

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