Twisting Puzzles
Rubik's Tower Twister
This is the Rubik's version of the Whip-It puzzle but with 6 tiles per column. It works in the same way with one column missing a tile (the red column) this creates a space where tiles can be moved up and down the columns. The rows can be rotated to move items from column to column.
This is nice and easy to solve. I like to solve it a row at a time but you can work through the columns instead if you prefer. It's a pretty easy puzzle to solve with intuition alone. If you sit with it long enough, you should be able to get there.