234567    M   I   O   F   V   W   H
 43256                             4
 52436    SB                   1
 23645     1                   2
 423756        -                   2
 274536            -
 352647    2               2
 347265    2           -       2
 745263            -   -   2
 643527                -   1
 53246     1                   1
 235764                    1  SB  BS
 345627    1   -           2
 43265     2                       2
 52364     1                       1
 64523     2                   1
 23456     1                   S   S

 4 = BBSB
 Contains 24 5678, 6578, 8765, 7568;
 12 2468 (inc Queens); 9 7468.