Yukiko's Castle 5th Floor Locked Door & Kick-back

[Flappy Tits]

On the fifth floor you can only go so far before the screen turn white and you get teleported to another hallway that operates the same way.
In between there is one door but it is locked; how am I meant to unlock that door?

Also when going back down levels they have all reset with new RnG maps.

[Borger Dorger]

If you didnt know, the 5th floor is supposed to be a puzzle. There is a pattern to reach a not locked door.

And every other floor besides the 2nd and 5th are supposed to be randomly generated every time you leave and re-enter.

[Flappy Tits]

Originally posted by Ramen? Amen.:

If you didnt know, the 5th floor is supposed to be a puzzle. There is a pattern to reach a not locked door.

And every other floor besides the 2nd and 5th are supposed to be randomly generated every time you leave and re-enter.

Watching Youtube I think I've figured it out:

When I teleport, check map and look for area not yet uncovered and then head that way. Repeat every time I teleport until the whole floor is uncovered and the right door should become available.