Nxnxn Rubik 39scube Algorithm Github Python Verified -

Let’s walk through using the first repository (nxnxn-rubik-solver-verified).

A move changes faces. Verification means updating a dependency matrix that tracks piece positions. nxnxn rubik 39scube algorithm github python verified

def R(self, layer=0):
    """Rotate the right face. layer=0 is the outermost slice."""
    # Rotate the R face
    self.state['R'] = np.rot90(self.state['R'], k=-1)
    # Cycle the adjacent faces (U, F, D, B) for the given layer
    # ... implementation ...
    self._verify_invariants()
def _verify_invariants(self):
# 1. All pieces have exactly one sticker of each color? No — central pieces.
# Instead, check that total permutation parity is even.
# Simplified: count each color; should equal n*n for each face's primary color.
for face, color in zip(['U','D','F','B','L','R'], ['U','D','F','B','L','R']):
count = np.sum(self.state[face] == color)
assert count == self.n * self.n, f"Invariant failed: Face face has count of color"
 Let’s walk through using the first repository (

MIT – free for academic and commercial use. MIT – free for academic and commercial use