[Dalewyn]

You need to have /some/ experience playing chess to realize and understand chess notation.

And no, vague and indirect "move to every square in order" located separately from the chess notation is not good information. Also, no, tiny nomenclature for ants on the board is not good information.

[IanCal]

Also on a phone/thin browser window the goal shrinks from "huge text under the header" to "small text at the bottom of the screen" and the instructional text disappears.