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Goal: Move the top corners to their places, starting from a pair of “headlights”. 3 tasks · ★★★ = fewest moves.
The headlights are at the back. Do the algorithm.
Your cube, unfolded
Goal
Algorithm
Keyboard: U D L R F B turn a face, with Shift for the prime (U'). Y turns the whole cube. Backspace undoes.
Headlights = two corners on one side with the same colour on that side. Hold them at the BACK, do R' F R' B2 R F' R' B2 R2, then turn U to line the corners up with the centres.
The top is yellow, but the corners may sit in the wrong places. Look at the sides of the top layer: two corners showing the same colour on one side are “headlights”. Put them at the back and do R' F R' B2 R F' R' B2 R2. Then a U turn puts every corner in place.
Algorithm: R' F R' B2 R F' R' B2 R2
Chapter 6 — Finish the cube: Move the top corners, then the top edges, to their places — and the cube is solved.