Cube in a cube pattern

A 2x2x2 block at one corner seems to sit inside the bigger cube. Every face shows a 2x2 square in its own colour, framed by an L of another colour.

F L F U' R U F2 L2 U' L' B D' B' L2 U

Tip. It's long. Learn it in three chunks of five moves: F L F U' R, then U F2 L2 U' L', then B D' B' L2 U.

Common mistakes

• Losing your place. If it goes wrong, undo the moves you've done so far, in reverse, or scan the cube and let the solver fix it.