How to Solve the First Layer Corners of a Rubik's Cube
Published by System Administrator
What Are First Layer Corners?
After building the white cross on the bottom face, the next step in the beginner method is to insert the four white corner pieces to complete the entire first layer. Each corner piece has three colored stickers — one white and two others that must match the adjacent face centers. For example, the white-red-blue corner must be placed between the red and blue faces with the white sticker facing down.
There are four corners to insert: white-red-blue, white-blue-orange, white-orange-green, and white-green-red. The order doesn't matter, but most solvers work around the cube systematically, inserting corners one at a time in a clockwise or counter-clockwise sequence.
Locating Corner Pieces
Corner pieces can be found in two locations: the top layer (U layer) or the bottom layer (D layer). If a corner is in the top layer, it's relatively easy to insert. If it's in the bottom layer but in the wrong position or orientation, you first need to extract it to the top layer before reinserting it correctly.
To find a specific corner, look for the piece with the three colors you need. Hold the cube so the slot you want to fill is at the front-right-bottom position (the FRD slot). Then search the top layer for the matching corner piece and rotate U until that corner is directly above the slot (at the FRU position).
The Three Insertion Cases
Once the corner piece is positioned above its target slot (at FRU), there are three possible orientations:
Case 1: White Sticker Faces Right
The white sticker is on the R face. This is solved with the basic algorithm: R U R'. This three-move sequence lifts the right layer, rotates the top to slide the corner in, then restores the right layer. It's the most common case and should be practiced until it becomes automatic.
Case 2: White Sticker Faces Front
The white sticker is on the F face. Use the mirror algorithm: F' U' F. This pulls the front layer back, rotates the top to position the corner, then restores the front layer. Some beginners find this less intuitive than Case 1, but with practice it becomes equally fast.
Case 3: White Sticker Faces Up
The white sticker is on the U face, pointing upward. This is the trickiest orientation because the corner cannot be inserted directly. Use the algorithm: R U2 R' U' R U R'. This sequence first moves the corner to a position where the white sticker faces sideways, then inserts it properly. Alternatively, you can use R U R' three times — each repetition rotates the corner's orientation by 120 degrees until white faces the correct direction.
Extracting Misplaced Bottom Corners
If a corner is already in the bottom layer but incorrectly oriented (twisted in place) or in the wrong slot entirely, you need to extract it first. Position the misplaced corner at the FRD position and perform R U R'. This will pop the corner out to the top layer, where you can then rotate U and reinsert it correctly using the appropriate case from above.
A common mistake is trying to fix a twisted corner without extracting it. Always remove first, then reinsert — don't try to rotate corners in place at this stage.
Tips for Faster First Layer
Once you're comfortable with the three cases, try to reduce the number of U-layer adjustments between insertions. Instead of placing each corner above its slot and then inserting, try to spot the next corner while inserting the current one. This "lookahead" technique is the foundation of speed in all layers of the solve.
Also practice inserting corners with the slot in different positions — not just FRD but also BRD, BLD, and FLD. This flexibility reduces unnecessary whole-cube rotations and builds the spatial awareness needed for the more advanced F2L technique you'll learn later.