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Kelsey Geller focuses on practical Rubik's Cube learning for beginners. Her guides simplify complex steps, explain the "why" behind moves, and help new cubers build confidence with a reliable solving approach. Every guide follows CubeSolver's editorial review standards before publishing.
Master OLL algorithms without a headache. We use common triggers like Sexy Move to make algorithms stick. Clear diagrams and recognition hacks included!
Master all 3x3 PLL algorithms with clear guides and tips. Learn what PLL is in Rubik's Cube solving and boost your speedcubing skills fast!
Learn how to solve a Rubik's Cube with the CFOP method. Step-by-step guide to Cross, F2L, OLL, and PLL for beginners who want to solve faster.
COLL algorithms are an advanced CFOP last-layer subset that solves the corners of the last layer when the top edges are already oriented. In other words, you use COLL after the top face is in a specific state and before the final edge permutation. If you already solve with OLL and PLL, COLL is a specialized upgrade, not a replacement for the basics. It is most useful when the case is easy to read, the move flow is clean, and you want fewer pauses at the end of the solve.
COLL stands for Corners of the Last Layer. It is a CFOP last-layer subset that handles corner orientation and corner permutation at the same time while leaving the oriented edges in place.
| Set | What it solves | Where it fits |
|---|---|---|
| OLL | Last-layer orientation | Before the top face is fully oriented |
| COLL | Corners of the last layer | After the last-layer edges are already oriented |
| PLL | Last-layer permutation | After orientation is done |
| CLL | Corner-only cases in 2x2 / EG-style systems | A different corner-focused family |
| OLLCP | Orientation plus corner permutation | Another advanced last-layer path |
The most common COLL count is 40 cases, although some lists group or split variants differently. That is why you may see slightly different totals across resources. The more important point is not the exact label count, but whether you can recognize a case quickly enough to use it in a real solve.
COLL is not the same as CLL. CLL is usually discussed in 2x2 or EG-style systems, while COLL belongs to CFOP and assumes the last-layer edges are already oriented.
OLLCP and PLL solve different parts of the last layer. OLLCP combines orientation and corner permutation, while PLL handles permutation after the orientation work is already done. COLL sits between those ideas: it is more specialized than OLL, but smaller and easier to adopt than a full expert last-layer system. If you want the simple learning order, use this:
COLL is optional. It is not something you need for a good solve, and it is not helpful if the recognition cost is too high. The set works best when the cube state is already favorable and the case is obvious enough to execute without hesitation.
| Situation | Best choice |
|---|---|
| You are still building your base last layer | Use normal OLL and PLL |
| The top edges are oriented and the corner case is obvious | Use COLL |
| The case is unclear or hard to read | Fall back to your normal finish |
| You want a one-step last-layer approach | That is beyond COLL territory |
Learn COLL after your regular last-layer flow is dependable. If OLL or PLL still breaks your rhythm, adding more advanced cases usually creates more pressure than speed. COLL is a better fit once your normal finish is already consistent and you want one more layer of efficiency.
The fastest way to learn COLL is to keep the active set small and train recognition before speed. If you memorize too many cases before they are readable, the set becomes hard to use in real solves.
Use this sequence to build the set in a controlled way.
The goal is not to learn everything at once. The goal is to build a small, usable set that actually helps your timed solves.
Start with cases that already look familiar from your current last-layer habits. For many cubers, that means Sune-style, Anti-Sune-style, T-style, U-style, and H-style patterns.
If a case feels clever but hard to read, skip it for now. A slightly longer algorithm that you can recognize instantly is usually better than a shorter one that causes a pause.
Before you drill a case heavily, it helps to verify the state first. CubeSolver AI lets you scan the cube with the camera or enter colors manually, then follow the move sequence step by step. That makes it easier to compare your own recognition with a guided solution before you spend time on the wrong case.
Use one question: does it make the solve smoother than your current OLL and PLL route? If the answer is yes, keep it. If the answer is no, leave it in practice and return later. The best COLL cases are the ones that match your eyes, your hands, and your inspection speed. Selective learning is usually better than trying to force a full set too early.
Most COLL mistakes are recognition mistakes, not algorithm mistakes.
COLL can feel slower because recognition time matters more than move count. A shorter algorithm that takes too long to identify is not a win. In practice, a familiar OLL and PLL finish can beat a poorly recognized COLL case every time.
Do not force it. Use your normal last-layer finish and keep training the case offline. If the set is not obvious at a glance, it is not ready for timed solves yet.
| Mistake | Quick fix |
|---|---|
| Reading only the top face | Check the side stickers too |
| Learning too many cases at once | Keep the active set small |
| Forcing COLL on unclear states | Fall back to OLL and PLL |
| Chasing short algorithms only | Prioritize recognition and control |
| Never testing in real solves | Move each case into full solves early |
COLL should make your solve cleaner, not more fragile. If it increases uncertainty, step back and simplify the set you are drilling.
COLL algorithms are best viewed as a specialized CFOP upgrade. They make sense when your base last layer is already stable and you want to reduce pauses with a smaller, sharper subset. If the case is easy to recognize, COLL can be a real speed improvement. If the recognition is shaky, it is better to stay with OLL and PLL until the pattern is automatic.
Not strictly, but you should be comfortable with standard last-layer recognition first. If OLL still feels shaky, COLL will probably feel like too much too soon.
No. COLL solves the last-layer corners—both their orientation and permutation—when the top-layer edges are already oriented. After COLL, you may still need an edge-only PLL, such as a U, H, or Z perm. In practice:
So COLL can replace the corner-solving portion of PLL, but not the entire PLL stage in every solve.
The common answer is 40 cases, although some lists present the set slightly differently. That is why you may see small variations in how the number is reported.
Usually no. Beginners get more value from clean cross work, solid F2L, and consistent OLL and PLL. COLL becomes useful once those basics are already reliable.
Yes. The algorithms themselves do not change, but recognition can feel easier on the color scheme you already use most often. Start there before you add more complexity.
