| R'U2R2 - UR'URU2 - B'R'B |
| r' U' r U' R' U R U' R' U R r' U r |
| FU(RU'R'U)(RU'R'F') |
| (R'U'RU'R'U)(F'UFR) |
| (RBR')(LUL'U')(RB'R') |
| [x'](RU'R'F')(RUR'U'FU) |
| R' F R U l' U' l [y'] R U' R' |
| (L'B'L)(R'U'RU)(L'BL) |
| R' F R U R' U' F' U R |
| (RUR')[y'](R'U'R)d(LU2L') |
| (RUR'U') (R'FRF') |
| F - RUR'U' - F' |
| RU - RB'R'B - U'R' |
| *y2* RUR'U' [x] D' - R'UR - E' |