Ponderable 4.2.1

(1) There are 24 pieces, a move is a permutation of $\frac{\mathrm{\mathbb{Z}}}{\mathrm{24}\mathrm{\mathbb{Z}}}$.

(2) Of course.

(3) Perform the moves in reverse order.

(4) Yes, two moves lead to another move and not to an illegal move.

Maison