Stand by the door for 8 minuts then ;)

really?

its so easy to solve, you just need an IQ above 70

there are over 50000 possible combinations

0691337699660 then 0669967331960

0691337699660

There are always Letters near the Code Pieces, put them in alphabetic Order :)

its inpossible to even get the key in the room with the 1000 doors

gotem

when entering the code into the keypad, make sure you're counting with 123 at the top and not 789. Once you've got this out of the way, it's easy to string a-g together from the 8 hidden clues :)