Knowing an algorithm is no use if it takes you three seconds to see that it’s the one you need. Recognition, the moment you identify the case that matches your cube, is the skill beginners practise least and good cubers practise most. You learn it separately from the algorithms, and it pays off more.
Three principles
1. Look at very little
A cube shows 54 stickers; you recognise a case from three or four. For each step there is a small set of clues that is enough, and the rest is noise:
- F2L: where the corner and the edge are, and which way the corner’s white sticker faces. Nothing else.
- OLL: the yellow stickers only. The other colours don’t matter at all.
- PLL: the sides of the top layer, and only two sides at a time.
Train yourself to ignore the rest. If you look at the whole cube, you see too much and recognise nothing.
2. Compare stickers with each other, not with the centres
In PLL especially, the top layer is often offset from the centres: the two corners on one side can show red while the centre below them is green. That doesn’t matter: headlights are two corners of the same colour side by side, full stop. The centre doesn’t count. In the same way, a block is a corner and an edge of the same colour next to each other. You compare top-layer stickers with each other; aligning with the centres is sorted out at the end, with a U turn.
The same T perm, aligned with the centres and then offset by a quarter turn: the headlights on the left and the blocks are still there, only the centres underneath change. It is the same case.
3. Recognise without rotating the cube
Every cube rotation to “see the other side” costs time and breaks your flow. The clues are chosen so you can see them from the front: the top and two sides (front and right, or front and left) are always enough for OLL and PLL. If you need to look at the back, it means you don’t know the right clues yet, not that the case is hard.
Recognition happens in two steps
For every step, your brain works better by elimination than by comparing against a list:
- A rough first clue that splits the cases into a few groups: the number of yellow edges on top for OLL (none, two adjacent, two opposite, four), the number of sides with headlights for PLL (four, one, none), the position of the corner for F2L (on top or in the slot).
- A finer second clue that picks out the case within its group: the shape of the yellow corners, the position of the blocks, the orientation of the edge.
At first you go through both steps consciously, naming them. After a few hundred solves they merge and you “see” the case. But separating them is how you learn them. The next three pages give both clues for each step: F2L, OLL, PLL.
Link the case to the algorithm, not to the name
A case’s name (“OLL 33”, “Jb”) is a tool for talking about it and finding it in a list. But mid-solve, the route “I see the stickers, I find the name, I recall the algorithm for that name” is too long. The goal is stickers → fingers, skipping the name.
To get there, when you learn an algorithm, learn it in front of the real case: set the cube up in that situation, look at the clues, and only then do the algorithm. Never by reading the algorithm without the cube in your hands. That is what the app’s virtual cube is for: it shows you the case in its standard orientation; copy it onto your cube, and execute.
Training your recognition
Name it without solving
Scramble, solve up to the step you are working on, and stop. Name the case under your breath, then check it with the app (or by applying the algorithm: if it works, you were right). Don’t do the algorithm straight away: the point is to train your eyes, not your fingers. Ten minutes of this is worth an hour of solves.
The cases you mix up
Keep a list of the pairs of cases you confuse: Ja and Jb, Sune and Antisune, Ga and Gc, OLL 13 and 14. For each pair, find the clue that tells them apart and repeat it to yourself every time one of them comes up. The recognition pages in this guide give those clues for the most common mix-ups.
Targeted scrambles
To work on a specific case, put the cube in that case: apply the inverse of its algorithm to a solved cube (read backwards, reversing every move), or use the app’s Formulas sheet to check. Then turn the top face at random (U, U2, U') and reorient your cube at random: the case is the same, but it no longer shows up in the orientation you learnt it in. That is how it will come up for real.
During a solve
When you solve, look at the next step during the last few moves of the current one. As you finish F2L, your eyes are already looking for the yellow edges; as you finish OLL, they are looking for the headlights. You turn a little slower, but you no longer stop. The page Fluency develops this habit.
Recognition improves slowly, then all at once. For weeks it feels like you are searching; then one day you realise you are no longer looking, you are seeing. Don’t give up before that moment: it does come.