[r-t] A Review of Diary Compositions

[Andrew Johnson]

>Including Beverley AND Surfleet is pointless, Carlisle should be
>included instead of one (so that there is an example of every backwork
>from the 41). 

>Ian Partridge

Here are my thoughts on the Carlisle page in previous diaries.

Andrew Johnson



The Ringing World Diary has a page of compositions of Carlisle Surprise
Minor.  While a 720 of Carlisle is impossible with no 65's at
backstroke, a better choice of compositions would minimise the number.

The 72, 144 (length incorrectly printed as 288) and the 216 have no 65's
at backstroke.  The 240 has 2, but the alternative touches of (PB)*5,
(BP)*5, (PPBBP)*2 or (BBPPP)*2 have none.

The first 720 has 6 65's at backstroke, and as this is the minimum for a
multi-part extent this could remain.  The other 720's have 9,12,13 and
13 65's at backstroke.  They would be better replaced with some other
extents with only 4 or 6 65's at backstroke.
The extents with 4 65's at backstroke happen to be those generated by
the first one-part extent in the diary starting at a place with 34
behind.
The extents with 6 65's at backstroke happen to be those generated by
the third one-part extent in the diary starting at a place with 23
behind, going backwards.

A 1440 with no 65's at backstroke is also possible.  This can be
composed of two true 720's which in themselves do not come round.  It
can be rearranged as a 1320 or 600.

An example of how the diary page might be changed is given below:


                  Carlisle Surprise Minor

    72     1440,1320,600    34256         720          720
  23456        23456        _____        23456        23456
  _____        _____        45362        _____        _____
- 23564      - 23564 |      56423        35264        35264
- 23645      - 23645 |A     62534        56342      - 35642
- 23456        34256 |      23645        64523      - 35426
               _____      - 23456        42635        _____
   144       - 34562 |      _____      - 42356 a      52364
  23456        46325 |        B          _____      - 52643
  _____      - 46253 |      _____      - 42563      - 52436
  35264        65432 |      42356        26435        _____
- 35642        53624 |      _____        63254        23564
  54326      - 53246 |    - 42563        35642        36245
  _____        _____ |    - 42635      - 35426        64352
  42563      - 53462 |      23456        _____        45623
- 42635        36524 |    For 1320       52364      - 45236
  23456      - 36245 |    ring ABCDABC - 52643        _____
               64352 |                 - 52436      - 45362
   216         45623 |B   720,552        _____        56423
  23456        52436 |      23456        23564      - 56234
  _____        _____ |      _____        36245      - 56342
- 23564      - 52364 |    - 23564        64352        64523
- 23645        26543 |      36245        45623        42635
  34256      - 26435 |      64352      - 45236      - 42356 a
  _____      - 26354 |      45623        _____        _____
 Repeat        65243 |    - 45236      - 45362      - 42563
 twice         54632 |      _____        56423        26435
             - 54326 |    - 45362      - 56234        63254
   240         _____ |      56423        63542      - 63542
  23456        42563 |      62534        34625        34625
  _____      - 42635 |      23645      - 34256 a    - 34256 a
  35264        _____        34256        _____        _____
- 35642      - 42356 |C     _____      - 34562      - 34562
  54326        _____       Repeat        46325        46325
  _____        25463 |     twice         62453        62453
- 54263        56234 |    For 552      - 62534      - 62534
  46532        63542 |D   call last      23645        23645
- 46325        34625 |    part         - 23456      - 23456
  62453      - 34256 |      42356
- 62534        _____        _____    The above extents can also
  23645      For 600 ring - 42563    be started from the leads
- 23456      AB plus one  - 42635            marked a
             lead           23456

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