I just added your summary on to our Google doc. Thank you very much, Sebastian. Much appreciated.

Meanwhile, look at this next Tweet: https://twitter.com/FreddyJacobi/status/1033053925899939840

No problem!

By the way, I've been on Discord with a couple other guys, working through the puzzles.

The "

**Key**" puzzle is solved when you take the code Freddy tweeted, and divide (i.e. separate) the numbers from the letters. If you make strings of 9, you get a square of 9x9 consisting of letters, and another 9x9 square of numbers (plus an extra 5 numbers at the end).

The numbers' square is a Sudoku - every 0 is a blank cell, so you have to complete it. Once you complete the Sudoku, and you remove every 3, 4, 5, 6 and 7 (because those were the extra 5 numbers), you get a "structure". The same "structure" in the letters' square ends up being this:

Now, I'm not sure we're doing it right. But, a certain someone gave the image (posted by yours truly on the Discord chat-room) a thumbs-up

. Therefore, that looks to be one way to approach the rest of the puzzle.

I think they're letters. Pretty tough to make out. This is my wild guess:

m ? l?

n o ?

b T z?

u G N

That's cool! Would you mind if I posted that on the Discord chat-room? So far, we haven't worked on that puzzle, so your findings will be useful. Thanks!