ad windows version: Have you tried downloading the zip (containing an exe) from qqref's original post. This version works fine on my laptop (Win 7).

Also the 3x3x3.def file on both github and qqwref's site isn't Windows-friendly and needs CRs added before it will work.

ad F2L-Solver: In the scramble you have to ignore the last layer pieces with a ?. E.G. if your scramble is 1 3 7 9 2 6 ... and you want to ignore the last layer, write ? ? 7 9 ? 6 ... In the definition file you're only specifying the pieces, which may be ignored. To really ignore them, write ?s.

Scramble file:-

And the output:-

Code:

```
Scramble Piece configuration as reported by ScrambleAlg R U R' U'
CORNERS
5 2 4 3 1 6 7 8
2 0 0 2 2 0 0 0
EDGES
1 2 4 5 3 6 7 8 9 10 11 12
0 0 0 1 1 0 0 0 0 0 0 0
End
Scramble U layer pieces replaced with ?
CORNERS
5 ? ? ? ? 6 7 8
2 ? ? ? ? 0 0 0
EDGES
? ? ? 5 ? 6 7 8 9 10 11 12
? ? ? 1 ? 0 0 0 0 0 0 0
End
Scramble U layer pieces with ? prepended
CORNERS
5 ?2 ?4 ?3 ?1 6 7 8
2 ?0 ?0 ?2 ?2 0 0 0
EDGES
?1 ?2 ?4 5 ?3 6 7 8 9 10 11 12
?0 ?0 ?0 1 ?1 0 0 0 0 0 0 0
End
```

Code:

```
Solving "Piece configuration as reported by ScrambleAlg R U R' U'"
Depth 0
Depth 1
Depth 2
Depth 3
Depth 4
U R U' R'
Depth 5
Depth 6
Depth 7
Depth 8
U F' U2 L' U' L F U2
R2 B' D' R D R2 B R'
Max depth reached, aborting.
Solving "U layer pieces replaced with ?"
Depth 0
Depth 1
Depth 2
Depth 3
Depth 4
Depth 5
Depth 6
Depth 7
Depth 8
Max depth reached, aborting.
Solving "U layer pieces with ? prepended"
Depth 0
Depth 1
Depth 2
Depth 3
Depth 4
U R U' R'
Depth 5
Depth 6
L' U R U' L R'
Depth 7
U F' L' U' L F U
Depth 8
U F' U L' U2 L U F
U F' U2 F R U' R' U'
U F' U2 L' U' L F U2
U B' R U' R2 U R B
U B' R U' R' U B U'
R2 B' D' R D R2 B R'
Max depth reached, aborting.
```