#### Kit Clement

##### Premium Member

OK! Thanks for the advice. I already know about NISS, but I will definitely try and look up how to do insertions.

Here's an example of a solution that uses both NISS/insertions for your scramble and 2x2x3 start:

Scramble: R' U' F L D' L2 U B2 R2 D' B2 L2 F2 L2 R' D' F L' D' R' D2 L2 U2 R' U' F

U2 L2 B' U F' L U' //223 block (7/7)

(U F U' R) //F2L-1 (4/11)

(R F R2 D R D') //L3C (5/16)

Skeleton: U2 L2 B' U F' (*) L U' D R D' R2 F' R2 U F' U'

*: U R2 U' L U R2 U' L'

Final solution: U2 L2 B' U F' U R2 U' L U R2 U2 D R D' R2 F' R2 U F' U' (21)

U2 L2 B' U F' L U' //223 block (7/7)

(U F U' R) //F2L-1 (4/11)

(R F R2 D R D') //L3C (5/16)

Skeleton: U2 L2 B' U F' (*) L U' D R D' R2 F' R2 U F' U'

*: U R2 U' L U R2 U' L'

Final solution: U2 L2 B' U F' U R2 U' L U R2 U2 D R D' R2 F' R2 U F' U' (21)

Moves done on the inverse scramble are in parentheses, the skeleton puts all them together back on the normal scramble only with 3 corners remaining. The insertion at (*) finishes those 3 corners while cancelling some moves.