TalentJR apps
Goal: Make the yellow face when no corner or two corners are yellow on top. 4 tasks · ★★★ = fewest moves.
No yellow corners on top, and a yellow sticker on the left face next to the front. Do the algorithm, turn U to line up the fish, and do it again.
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.
No yellow corner on top: turn U until the LEFT face has a yellow sticker at its top, next to the front. Two yellow corners: turn U until the FRONT face has a yellow sticker at its top-left. Do the algorithm — you get a fish — and finish it.
With zero or two yellow corners on top, the same algorithm is used more than once: each go changes the pattern, and soon you get the fish. Zero corners: hold a yellow sticker on the left face, next to the front. Two corners: hold a yellow sticker at the top-left of the front face. Then do the algorithm and repeat with the fish until the top is yellow.
Algorithm: R U R' U R U2 R'
Chapter 5 — The yellow top: Make a yellow cross on top, then turn the whole top face yellow.