TalentJR apps
Goal: Slide a middle-layer edge from the top down into its place on the right. 3 tasks · ★★★ = fewest moves.
The green-orange edge is lined up at the front and needs to go right. 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.
Find an edge on top with no yellow. Turn U until its front colour matches the front centre. If its top colour matches the right centre, do U R U' R' U' F' U F.
Middle-layer edges have no yellow. Line one up so its front sticker is above the matching centre (making an upside-down “T”). If it needs to go right, the algorithm U R U' R' U' F' U F takes it in and keeps the first layer whole. Turn the whole cube (y) to work on another side.
Algorithm: U R U' R' U' F' U F
Chapter 4 — The middle layer: Two mirror-image algorithms slide the middle edges in from the top, to the right or to the left.