Can you explain how this is a brilliant move?
It is better to post a diagram then just a link. On top of it, I am not sure which move do you mean, so it would be helpful to say the exact move.
The way to post it in a form of diagram is this:
Click on that bottom right corner, like you want to share the game.
Next go to PGN section and copy the entire thing.
Then when you want to type the message, click on that miniature chessboard in the top left.
Click on Load from PGN and paste the contents of PGN file you already copied previously. Then just click Add Game(s).