Cube in Cube pattern: moves for a 3x3 cube
On every face a 2x2 block of its own color sits around the center, with one other color around it. The cube looks like a smaller cube inside a bigger one.
Moves
F L F U' R U F2 L2 U' L' B D' B' L2 U
15 moves, starting from a solved 3x3 cube.
Source: www.cubelelo.com