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A few thoughts of Don's thoughts about extension above of Kent by
way of reviewing the extensions of Kent TB ‘above’ the treble
with a comparison of extensions of Cambridge S.
<p class="MsoNormal"> The usual extension – 34x34 – denoted 1CD - is
the same
extension PATH as used by York S at all stages.</p>
<p class="MsoNormal">The extension having 34x34.8.56x56 – denoted
1BC – is the
same as used by Cambridge S at all stages.</p>
<p class="MsoNormal">The extension having 56x56.8.56x56 – denoted
4BC – is used
by <span style="mso-bidi-font-size:11.0pt">Manuka<span
style="mso-spacerun:
yes"> </span>S</span></p>
<p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt">The
extension 56x56
– denoted 4CD – is the extension used by Pudsey.</span></p>
<p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt"> If I
have read Don’s
comments correctly, it could be interpreted as preferring Pudsey
as the
extension of Cambridge and the current extension path would not
have been
allowed.</span></p>
<p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt"> The
Extension rules
are fully symmetric - what you can do on the back, you can do on
the front. (In fact, I find it easier, by hand, to extend
'above' by considering extensions 'below' then inverting.)<br>
</span></p>
<p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt"> Suppose
that a TD6
method has 34 made with the treble in 5-6. Norwich is such an
one.</span></p>
<p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt"> Following
Don’s
argument, an extension having just 56 places made under the
treble in 7-8 with
none (under) in 5-6 would be (subjectively) preferred to those
having both 34
and 56 or 34 and 34. (If you do not accept 56x56.8.56x56 above
as an extension, you cannot accept x34x1x34x below on symmetry
gounds).<br>
</span></p>
<p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt"> Available
extensions
(via RAS) of Norwich are:</span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New";mso-bidi-font-family:
"Times New Roman"">2DE/5EF -34-4-2-3-34-3-34-1,1
(8 [2] 60)</span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New";mso-bidi-font-family:
"Times New Roman"">2CD/2EF -34-4-2-36-34-5-56-1,1
(8 [2] 60)</span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New";mso-bidi-font-family:
"Times New Roman"">2BC/2EF -34-4-256-36-34-5-56-1,1
(8 [2] 60)</span></p>
<p class="MsoNormal"> none of which follow Don’s idea.</p>
<p class="MsoNormal"><br>
</p>
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