Stage 2 centers about fivestage444 HOT 3 CLOSED

if the goal is (let F centers in F face && B centers in B face || F in B face && B in F face, as we can do rotation like [x2]or[y2]), there'll be only 51,482,970 / 2 = 25741485 states.
With symmetry reduction, only 538365(about 540k, 16 syms generated by S_F2, S_U4 and S_LR2) equivalence classes. And the size of its move table will be 540k * 28 * 4 = 60M.

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I agree that you can divide the number of states by two, but how do you go from 25741485 states to 538365 equivalent classes ?

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Now using one coordinate for each center.

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