User:TerenceTan711
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R3-T(bad name,I know) is basically a weird Petrus and Hexagonal Francisco variant. It solves the E-slice in a similar way to Quadrangular Francisco, (a method created by Alex Yang) which is a variant of Hexagonal Francisco, (a method by Andrew Nathenson) which is a variant of Triangular Francisco.
The E-Slice is solved efficiently and F2L is finished off in an unusual way.
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Steps
1)1x2x3 block - Solve a 1x2x3 block antwhere on the cube, it will be treated as if it's in the D layer.
- For beginners, you can treat it as 3 cross pieces and 2 corners.
2)E-slice - solve the E-slice with the empty face.This can be done very efficiently.
The E-slice does not have to line up
- you can position the 1x2x3 on the left(like Roux's FB)in this step if you
want.
3)EO+CO - you solve edge-orientation and corner-orientation.(not necessarily in that order)
- Because the E-slice is already solved, there can only be 0, 2 or 4 misoriented edges.
4 misoriented edges can be solved as an arrow (like in LSE) e.g. (D') M'U M
2 misoriented edges can be solved using an OLL alg.(you can influence corner orientation in this step.)
- CO can be solved using 1-2 OCLL algs - 7 algs.
(orient the corners stuck in the D layer by doing an R2 first)
This can also be done by solving only 3 E-edges and insert the last one with TSLE.
4)Spam F2L(remainder) - F2L is finished with mainly R2,U moves.(or L2,U if it's on the left etc.)
Basically pair the last 2 corners with the last cross edge to make the 1x1x3 that goes in the first layer.
5)PLL - Permute the pieces of the last layer - 21 algs.
Pros
- FB can be planned in inspection and the transition between steps is fairly quick.
- The E-slice is solved efficiently and lookahead for E-slice edges is easy.
- The remainder of F2L can be solved only using R2 and U moves allowing the user to spam TPS easily.
- Alg count is significantly lesser than Full CFOP as you use only OCLL's to orient corners.
- EO can be recognized quickly (maximum bad edges - 4)
Cons
- The 1x2x3 is hard to optimize.
- Recognizing EO in the middle of the solve(even though the maximum amount of misoriented edges is 4) will take some time
- You have to do 2 OCLL's half of the time to orient the corners
e.g. Sune,R2,Sune
- Finishing F2L with R2 and U might not be efficient at times.
- You have to do a z rotation after finishing the E-slice if you do it the Quadrangular Francisco way(position the 1x2x3 on the left.)
Tips
- FB positioning
(Assuming you keep the FB on the D layer)You can either position the FB
In the back - Insert E-edges like how you would in Hexagonal Francisco, R (U) R', L' (U) L, r (U) r' and l' (U) l
On the side - (left or right)
- Misaligned E-slice
You don't have to align the E-slice with the block after solving the E-slice
