As one might expect, “mirror chess” has also been tried.
In this 14-move (28-ply) 1918 game against an amateur, Capablanca breaks the mirroring with a check, unleashing a swift mating sequence. He’s able to pull this off by the natural reason of being one tempo ahead – so a good way to overpower mirror chess seems to be to play aggressively so as to emphasise White’s one-tempo advantage.
When Ilya broke the mirror it was like a 2-point mistake and Ali got a slight lead which is better than what he’s started with on the empty board. And that’s the point of mirror go.
Andrew Grant’s 1983 article on the subject in BGJ #61
Of especial interest is the first diagram given, showing a way for White forcibly capture the tengen stone and create assymetry if Black will not abandon the mirroring.
Just dug up this thread, as the topic of Mirror Go is coming up ever so often, and quite often it is brought by people who are terribly annoyed by their opponents mirroring their moves (sry but not sry 4 the laff)
If you believe your opponent is “trolling” you when they mirror your moves, that they are “mocking” you … maybe it is time to ask yourself: Are your moves “good” moves or are they “bad” moves?
Also:
Imitation is the sincerest form of flattery that mediocrity can pay to greatness.
— Oscar Wilde
(sry but not sry 4 the laff)