the machinery confesses

The same symbol moves differently by where it stands.

Pick a square, load Alice with the mirrors, doors and tea she carries, and type one symbol. As it passes through strip → base → grammar → mirror → door → final, whichever stage rewrote its meaning lights up.

02The symbol you type, and the board's answer

raw symbol — what you type

←

final = a

moves west

I. Mirror Reversal

looking-glass seam · where left/right and front/back swap