3x3 · COLL
3x3 COLL S 1 algorithm
3x3 COLL S 1 algorithm: 7 turns, opening with R U R'. Case recognition, the complete sequence, and practical execution notes.
Solve the last-layer corners with the last-layer edges already oriented; edge permutation may remain.
S 1 belongs to the Sune group in COLL.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: UFL. Upper edges with that color facing up: UF, UL, UB, UR. Reading each side’s upper corner stickers left to right when facing that side gives F: B U; R: B U; B: L U; L: F R. The letters identify colors by their reference faces.
Execute the algorithm
R U R' U R U2 R'
The opening is R U R'; the final segment is R U2 R'. This version contains 7 face, wide, or slice turns and no whole-puzzle rotations.