E2CR2
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E2CR2 (Edge orientation + Left block, 2x2x3, Corner permutation, Right block, 2GLL) is a method which could be seen as a mix between ZZ and Roux, although due to effectively solving an EO223 in the beginning, it also shares similarities with Petrus and LEOR.
E2CR2's ergonomics are excellent both for 2-handed solving and One-handed solving after the EOFB stage. After the EOFB step the cube can be solved only using r, R, U and D moves. And once the CP step is done, the cube is completely reduced to only R and U moves.
Steps
- 1. EO + FB/LB: Solve EO and build a 1x2x3 Block on the left side of the cube.
- 2. 2x2x3 Extend the 1x2x3 block to 2x2x3 block by solving the DF and DB edges.
- 3. CP place the remaining D layer corners in the D layer without caring about the orientation or permutation. Then solve the CP with 1 of 4 algorithms
- 4. SB/RB: Build a second 1x2x3 block on the right side of the cube.
5. 2GLL - Solve the last layer using one of 85 algorithms.
Pros
- Ergonomics are excellent allowing for faster turning.
- Look ahead is also great once the FB is solved.
Cons
- Planning EOFB can be difficult to get used to. But it can be achieved.
- Recognising CP in between a solve might not be good, but it is manageable.
Example solve 1
Scramble : U2 F' L2 F U2 F' D2 U2 B U2 F R2 D' B' R' D2 B' U' L2 D2 R
55 moves
B2 R2 U2 F // EO
U2 D L U l2 // LB
U r' U2 r' U2 r2 // 223
U D' R U' R' D // CP
R U R' U R U R' U2 R U' R U R' U' R U2 R' // RB
U' R' U2 R U R' U R U R U R' U R U2 R' U // ZBLL
Example solve 2
Scramble : B2 D2 L2 U' L2 B2 U F2 R2 B2 R2 U2 F R U L' R2 D2 U' L B2 U
53 moves
R L' B2 U2 B' // EO
U' L U' R' D' r' B' r // LB
R' U' r U2 r // 223
U' R2 U2 D' R U R' D // CP
R' U2 R' U' R U R U' R' U R U R' // RB
R U R2 U' R2 U' R2 U2 R U' R U' R' U // ZBLL
Examples solve 3
Scramble : R2 U2 R D2 U2 L F2 R B2 R F2 R U' F D B D' U2 F2 D R'
44 moves
B D' R' F // EO
L U D' L' U' L2 U L U' L' // LB
R2 U' r2 // 223
// CP skip !!!
U' R' U R U' R' U' R' U R U' R' // RB
U2 R' U2 R2 U R' U R U2 R' U2 R' U2 R U2 // ZBLL
Example solve 4
Scramble : D B2 D' F2 L2 U2 B2 U F2 D L2 B2 L F L U' R B' D L' B'
47 moves
R' B' L2 U' F // EO
R' d2 R F2 D L U L' D' // LB
R' U r' U2 r' // 223
R U R' U D' R U R' D // CP
R2 U' R U' R2 U R U2 R U R' // RB
U R U R' U R U2 R' // ZBLL
Example solve 5
Scramble : U2 R2 U' L2 F2 D' F2 L2 F2 L2 D' U' B' U2 F2 R' F2 L B' L' R' D
53 moves
L' F L R D' B // EO
D u2 U' L U L' D U R' D' // LB
U' R' U r2 // 223
R' U2 R' U2 D' R U R' D // CP
R2 U R U R' U' R U2 R U2 R' // RB
U R U2 R' U' R U R' U' R U' R' U' // ZBLL
Example solve 6
Scramble : R2 F' B' R' U F' D' F' R2 U' B2 L2 D2 B2 D2 B2 U L2 B'
46 moves
L B' L2 D' R' F' // EO
d2 L U' L' U2 F2 U' L' U L // LB
U R U' r2 // 223
R U2 R U' D' R U R' D // CP
R' U' R2 U2 R' U' R' U R' U' R U R U R U' R // RB cancelled into ZBLL (PLL)
External links
- CP algorithms - https://docs.google.com/document/d/1sfJVT-AdPMmk0j9ALkmR22lW16Z-18U-UEcH7MIEK6k/edit?usp=sharing
- 2GLL algorithms (cube root) - https://www.cuberoot.me/2gll/
