Step 3 of 6
Yellow cross
Make a yellow cross on the top face. Only the top matters: the side colours of the edges will be placed later. The first two layers stay intact.
The basic situations
Hold the cube as the hint says, then apply the formula. In the app, every formula is animated on a virtual cube.
Dot
Hold the cube yellow on top, any way round: only the top centre is yellow.
F R U R' U' F'→ L shapeL shape
Turn U until the yellow L sits on the back and left edges of the top.
F U R U' R' F'→ piece in placeLine
Turn U until the yellow line is horizontal, from left to right.
F R U R' U' F'→ piece in place