B

This corner configuration occurs in 8 of the 27 possible cases (29.6%). Since there are no symmetries, all 12 positions are different.

Simple sequences
[13.7 average]

1/12
8%

AntiSune + Allan

1/12
8%

Rune

1/12
8%

Sune + AntiSune

1/12
8%

Sune + Allan

1/12
8%

Sune

1/12
8%

AntiSune

1/12
8%

Sune + Allan

1/12
8%

Sune + Allan

1/12
8%

Sune + Allan

B10

1/12
8%

AntiSune + Allan

B11

1/12
8%

AntiSune + Allan

B12

1/12
8%

AntiSune + Allan

Perfect sequences
[11.2 average]

1/12
8%

Benny

B10

1/12
8%

AntiBenny

B11

1/12
8%

B12

1/12
8%