[r-t] All the 4-runs

Andrew Johnson andrew_johnson at uk.ibm.com
Sun Jan 16 15:35:03 GMT 2022

> From: "Graham John"
> On Sat, 15 Jan 2022 at 17:28, Mark Davies wrote:
> > Have we discussed this? I can't remember doing so. I think it contains
> > all 4-runs, including internal ones. I note no-one has rung it! Does
> > anyone know Richard?
> There is a Composition Request thread on complib for this.
> Richard thinks he can get it down to
> 5000, but accepts that his composition is an exercise in proving it is
> possible rather than something anyone would ever ring.
> Graham
I think there are 176 places in that composition where you could omit
two changes with a half-lead 1234 single without losing any runs, but
the resulting 5008 would be even less ringable.

Andrew Johnson

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