This is a classic mini-game Fifteen Sliding Puzzle. This option works in the browser, in it you need to specify a regular picture, the program itself will cut the picture into squares and mix them.
Joining Seacrest center stage, Derrick was shown the two-word puzzle and he chose “M, D, K, A” as his additional letters (a deviation from the more common “C, D, M, A”). Only a “K” and ...