At any one time, if a block in one vertical is moved up or down, the blocks in the other slots move simultaneously in the same direction. Horizontal bands may be rotated left or right as many places as you wish (but one place per mouseover).
Position at initialisation:
and then after several moves:
1. Suggest how I can "backtrack" to the initial position in the shortest possible moves.
Consider R4, 4R or RRRR, all being equivalent, as 4 moves.
2. Then, is it possible to reverse the order of the digits? If so, how?
Note: mouseover on links is very sensitive.