Hörn ovanför FR-platsen med vitt till höger, kant i U-lagret redan parad med hörnet.
URU'R'
P 1/41 4 moves
CFOP · Steg 2
F2L-algoritmer
Alla 41 standard-F2L-fall för CFOP-metoden. Infoga hörn-kant-par effektivt på fram-höger-platsen.
41 F2L-parinfogningsfall
What F2L really is
In the beginner method you solve the first layer in two separate phases: place four corners, then thread in four middle-layer edges. F2L collapses that into one idea — you pair each first-layer corner with its matching middle edge and drop them into their slot as a single unit, four times. That one change is the biggest single time saving in the whole solve. Dan Harris calls F2L the stage where “most people gain a lot more time,” and it is the reason a CFOP solver finishes in 20 seconds where the beginner method takes 60.
Hold the cube, then read the case
Keep the cross on the bottom and build every pair in the top layer, inserting downward into the four side slots — these algorithms target the front-right (FR) slot. To recognise a case, read it in two steps: first find the corner (is its white/cross-coloured sticker on the U face, the R face, the F face, or is the corner already down in a slot?), then find its edge. That two-step read is exactly how the case families below are grouped, so it doubles as a recognition routine.
The anatomy of every F2L algorithm
Almost every F2L algorithm does the same job in the same order: a set-up move or two to position the pieces, the pair-up that joins the corner and edge, the insert that drops the joined pair into its slot, and sometimes a restore that puts back any pair the pair-up disturbed. Once you can split an algorithm into those phases, you can rebuild a case you've forgotten and stop breaking slots you've already solved. Watch the two below and you'll see the phases happen.
Connected pair — the simplest insert
R lifts the slot pieces into the top layer and connects them with the waiting pair, U aligns the joined pair over its slot, and R' drops it home. There is no separate set-up or restore — a connected pair sitting in the right place is the gift case of F2L.
Separated pair — pair up, then insert
R U R' U' pairs the corner and edge up in the top layer; the trailing R U' R' connects and inserts the pair below the corner. Notice how the work splits cleanly into pair-up then insert — that is the template behind dozens of the cases below.
One trick, four angles
The most common myth about F2L is that filling all four slots means learning four times as many algorithms. It does not. Learn each case as a hand motion — how the pieces move relative to each other — rather than a fixed string of letters, and the same trick works from any side: you simply substitute the face that is in front of you. The front-right pair-up R' U R becomes F' U F, L' U L, or B' U B for the other three slots, with no new memorisation.
R'UR F'UF L'UL B'UB
Look-ahead: the real speed lever
Getting faster is not mainly about turning your hands faster — Harris's warning is that “the hands are quicker than the eyes.” Turn at full speed and your perception can't keep up, so you stall after every algorithm to hunt for the next pair, and those dead stops cost more than turning a little slower would. The fix feels backwards: slow your turning down just enough that your eyes can track the pieces, let the current algorithm run on autopilot from muscle memory, and spend the freed attention finding and orienting the next pair. Chain those together and the whole solve runs with no pauses.
The genuinely tricky cases
Most cases are short. The long ones almost all involve a piece trapped in a slot the wrong way — a corner wedged in with its cross colour pointing sideways, or a pair already in the slot but flipped. These are long for a reason: the algorithm has to eject the badly-placed piece into the top layer before it can rebuild and re-insert the pair. You'll find them under the “Corner in slot,” “Both in slot,” and similar filters below.
Finger tricks for F2L
A finger trick is a short sequence ripped off in one fluid motion instead of re-gripping between turns, and F2L is built almost entirely from a handful of them. Your index finger and thumb alone can drive the whole trigger family — these are the same pairs of moves that pair up and insert, so finger-tricking them is fast F2L. The famous “sexy move” R U R' U' is just two of these stitched together.
RUR' RU'R' R'F RB'
All 41 cases
Here is the complete set. Now that you can read an algorithm's phases and adapt it to any slot, treat these as phrases you understand rather than strings to parrot. Filter by case family, copy any algorithm, and step through it in 3D.
Spegel av fall 1. Par redan bildat i U-lagret, infogbart från vänster.
U'F'UF
P 1/41 4 moves
Par redan linjerat i U-lagret, redo för direkt infogning från vänster.
F'U'F
P 1/41 3 moves
Par redan linjerat i U-lagret, redo för direkt infogning från höger.
RUR'
P 1/41 3 moves
Hörn med vitt uppe, kant vid sidan. Standard separationsalgoritm.
U'RU'R'URUR'
P 1/41 8 moves
Spegel av fall 5. Samma idé, vänster sida.
UF'UFU'F'U'F
P 1/41 8 moves
Hörn med vitt på F-sidan, kant i U-lagret.
U'RUR'URUR'
P 1/41 8 moves
Spegel av fall 7.
UF'U'FU'F'U'F
P 1/41 8 moves
Hörn med vitt på R-sidan, kant i U. Använd en vänsterhandsuppställning.
y'U'R'URU'R'UR
P 1/41 9 moves
Hörn med vitt på R-sidan, kant i U-lagret i bakre position.
URU2R'URU'R'
P 1/41 8 moves
Hörn med vitt på F-sidan, kant i U-lagret i bakre position.
U'F'U2FU'F'UF
P 1/41 8 moves
Knepigare fall som kräver en trippel-sledgehammer-uppställning.
URU'R'U'F'UF
P 1/41 8 moves
Hörnet har det vita klistermärket uppe, kant i U-lagret. Standardinfogning.
RU2R'U'RUR'
P 1/41 7 moves
Spegel av fall 13.
F'U2FUF'U'F
P 1/41 7 moves
Hörn uppe, kant på vänster sida av U-lagret.
U'RU2R'U'RUR'
P 1/41 8 moves
Hörn uppe, kant på höger sida av U-lagret.
UF'U2FUF'U'F
P 1/41 8 moves
Hörn uppe, kant baktill i U-lagret. Längre uppställning.
RU'R'URU'R'U2RU'R'
P 1/41 11 moves
Hörn uppe, kant i mittplatsen (fel orientering).
RU'R'dR'U2RUR'U2R
P 1/41 11 moves
Hörn uppe, kant i mellanlagret i fel orientering.
RUR'URU2R'URU'R'
P 1/41 11 moves
Spegel av fall 19.
y'R'U'RUR'U2RU'R'UR
P 1/41 12 moves
Hörn i U-lagret, kant redan i mellanlagret (fel plats eller vänd).
RU'R'URU2R'URU'R'
P 1/41 11 moves
Kant på plats med vitt framåt, hörn ovanför. Sexstegslösning.
RUR'U'RU'R'
P 1/41 7 moves
Kant på plats som behöver återinfogas med hörnet ovanför.
U'RU'R'URUR'
P 1/41 8 moves
Hörn uppe, kant på plats. Uppställning + infogning.
URUR'U2RUR'
P 1/41 8 moves
Knepigare fall med vänsterhandsgrepp.
y'UR'U'RU2R'UR
P 1/41 9 moves
Hörn redan på FR-platsen (fel orientering), kant i U-lagret.
URU'R'U'F'UF
P 1/41 8 moves
Spegel av fall 26.
U'F'UFURU'R'
P 1/41 8 moves
Hörn på plats pekar åt fel håll, kant i U.
U'RUR'URUR'
P 1/41 8 moves
Spegel av fall 28.
UF'U'FU'F'U'F
P 1/41 8 moves
Hörn på fel plats, kant i U. Längre återställningsuppställning.
RU'R'URU'R'U2RU'R'
P 1/41 11 moves
Hörn på fel plats, kant i U baktill. Trippel-uppställningsfall.
RU'R'URU2R'URU'R'
P 1/41 11 moves
Båda bitarna på sina platser men med fel orienteringar. Lång algoritm.
RU'R'dR'U2RUR'U2R
P 1/41 11 moves
Hörn orienterat på plats, kant vänd. Vanligt fall.
RU'R'UdR'U'R
P 1/41 8 moves
Sexy-move-upprepningsmönster för att vända paret.
RUR'U'RUR'U'RUR'
P 1/41 11 moves
Hörn korrekt på plats, kanten behöver vändas i den motsatta platsen.
RU'R'dR'U'RU'R'U'R
P 1/41 11 moves
Par på plats men med ombytta hörn-kant-positioner.
RUR'U'RU'R'dR'U'R
P 1/41 11 moves
Enkel variant med hörnet korrekt och kanten vänd.
RU'R'dR'U'R
P 1/41 7 moves
Endast kanten är på plats (vänd). Hörn ovanför i U-lagret.
RU'R'URUR'U'RU'R'
P 1/41 11 moves
Endast hörnet är på plats (vridet). Kant i U-lagret.
RUR'U'RUR'U'RUR'
P 1/41 11 moves
Paret sitter på plats men vänt (hörn-kant-anslutning inverterad).
RU'R'URU2R'URU'R'
P 1/41 11 moves
Par på plats men med hörn och kant i ombytta positioner.
RU'R'URU'R'U2RU'R'
P 1/41 11 moves
OLL-algoritmer
Efter F2L, orientera sista lagret med de 57 OLL-fallen
ReferensCFOP-introduktion
Förstå hur OLL passar in i den fullständiga CFOP-metoden