[r-t] Out of course treble-dodging minor

[Philip Earis]

“I've made some more progress on this, and I now believe that all 147 methods can be achieved in 20 round extents but no fewer”

Thanks John. Super.

Your extent #8 contains three different types of call, and your extents #12, 14, 17 and 19 each contain four different types of calls.

Are there alternative rearrangements, such that you have fewer extents with >2 types of call?


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