Single Shift Flat Rubik Puzzle consists of 4 color blocks. For the puzzle to be solved, blocks should be unscrambled (See picture on the top of the page). You can make any of the following moves: shift column up, shift column down, shift row left, and shift row right.

For example, if you select the ‘Shift Column Up’ option and click any square on column #3, all squares of column #3 will move up (exception: the square #9 at the top of column #3 will go to the bottom of the column).