BellBoard

123456  4  18  20
264315  -   -
653421  -   -
415263      -   -
462513  -
231645  -   -   -*
356124  -   -
624351  -       -
312564      -   -
246135  -   -   -
635241  -       -
213465      -   -

Repeat, calling double, bob, double at * in part 1.

Bobs at  4 are red bobs (called 'apple').
Bobs at 18 are green bobs (called 'chocolate').
Bobs at 20 are blue bobs (called 'banana').

(RW1981 p1096)