[r-t] Candidate definition #10

[Richard Grimmett]

Quoting Don Morrison <dfm at ringing.org>:

One or more bells may ring in the same position in each
and every row of B, and such bells are non-changing bells. The stage,
S, of B, is the number bells ringing that are not non-changing bells.
.........

Are you happy with those non-changing bells being such that 'jump  
changes' are caused.
e.g. the bells in 1st 4ths and 7ths on 8?

Clarrie