For 7x7, we adjust:
Hold the cube with your completed centers safely on the left and right. Use the "freeslice" technique: 7x7 cube solver
Once all centers are solved and edges paired, the cube behaves like a 3x3 (though outer layers turn 7 layers at once, but that's equivalent to turning a single layer on a 3x3). We feed the state into a Kociemba two-phase solver. For 7x7, we adjust: Hold the cube with
Behind the curtain, a 7x7 solver is a masterclass in computational group theory. Here is the simplified workflow: 7x7 cube solver