-- v = very wide = whole cube -- ' / i / - = counter clockwise -- + / - = 45 degree turn   scramble -- UNDER CONSTRUCTION --

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This cube can/must make valid 45 degree turns on the Equator middle slice. Compulsory Mixup if you will.

IRL the middle centers (="edges"), in the solved state, are too wide to enable upward/downward moves. They must be put at the edge positions. The middle edges become "centers", with orientation.

First Cross: note the orientation of the middle layer "centers".

Parity Last Layer: flip a middle "edge", by ejecting with RH (or LH) algorithm, and then re-insert with the same algorithm.