First two layers
F2L Case 4: Basic Insert - Hidden Pair
Pair already connected Solve it with U' R U R' U U R U' R' — 9 moves on a moderate case.
The algorithm
U' R U R' U U R U' R'Step through it
Watch F2L case 4 on a 3D cube
Move 1 of 90%
How to recognise it
- Pair already connected
- Hidden in back position
- Both pieces in top layer
Alternative algorithms
Different finger tricks suit different grips. These solve the same case.
- R U' R' U U R U R'
Drill this case
The trainer opens on F2L case 4 and spaces the repetitions for you.
Practise F2L case 4 in the trainerNearby cases
Other cases you recognise the same way:
Looking for the whole set? Browse all F2L algorithms or read the CFOP method guide.