Four modified 1x1x1 Rubik's cubes are sticking with each other by magnetics (as shown) forming the 2x2x1 puzzle block.
Starting with all the same colors on the same face to ensure solvability, shuffle by turning any two side by side
cubes on the axis that connects their centers. Few times will do.
To solve or play just apply the same rule of turn to rearrange for same colored sides. Maybe a different configuration.
Note that the 2 cubes cannot rotate on edges or face axis..just on the axis where both centers are.(90 or 180 deg)
If by then only one of the cube is disoriented, how many turns more shall it take to complete the puzzle?