Myonmasgift2 from Prof. B

On December 23, 2021 at 02:44:24 UTC, Prof. B (Prof. B#9117) posted the message "helping" in the Discord chat, followed by an image showing a chessboard filled with letters.

Message
"helping"

Download original file from wiki | Download original file directly from Discord

Metadata
Some interesting metadata found in the image file:

Small text
Upon closer inspection, some small text can be found at the top and at the bottom of the image.

Text at the top: ENDGAME

Text at the bottom: WQ=1 BK=2 WK=3 BR=4 3WP (descending) = 5,6,7 3BP (ascending) = 8,9,10 last P=11

Visible words
A cursory glance at the chessboard revealed a few obvious and recognizable words that can be read horizontally, vertically, or diagonally:
 * MYONS
 * HELP
 * SATAN
 * DEMON
 * MIND

A closer look reveals a few more:
 * CATS
 * OUO (emoticon)
 * YUM
 * GOD
 * DOG
 * TO

More words, such as CAGE, can be found if a word isn't required to lie on a row, column or diagonal. In some cases, more than one word in succession can be found this way, but nothing that would seem to reveal anything interesting.

Hidden text
A closer look was taken at the hints at the top and bottom of the image.

It was determined that the text at the bottom contained a form of chess notation where the capitalized letters have the following meaning:

B = Black, W = White, K = King, Q = Queen, R = Rook, P = Pawn

The number assignments go sequentially from 1–11, suggesting a sequence.

We can now interpret the information and put everything into a table, like so:

The word "ENDGAME" at the top of the image suggested that it could be referencing the endgame part of a chess game. But which game?

A mysterious string was found in the title field in the metadata of the image file: "Ks Immortal". A search on "Ks Immortal" within the world of chess led to a famous chess game known as Kasparov's Immortal Game (Garry Kasparov vs. Veselin Topalov, 1999).

By looking up the final positions of the chess pieces in that chess game, it was found that the pieces matched the pieces indicated in the text at the bottom of the image. By using the final positions of Kasparov's Immortal Game as a grille, overlaid on top of Prof. B's chessboard, and reading the letters in the order indicated by the sequence numbers found in the hint (see table above), the following text was revealed:

THE ARCADIAN

Notes/Theories

 * In the past, we have seen several references to Arcadia and "ARCADIAN":
 * In Stormseeker's Discord status: "Et in Arcadia ego."
 * "ARCADIAN" is written on an obelisk in the  map.
 * Flashing lights on the gate in Dr. Horn's secret lair has been decoded to "AICADIAE".


 * "THE ARCADIAN" could be a key or a hint for solving the "Meet the Devs" code puzzle or the Coded message from Prof. B.
 * A tweet by Stormseeker suggests that this puzzle is likely not fully solved yet.