Captain Walter Fried's Fish Notes Annex to #F 71, Screed on Delta D Counts and Colossus runs
Page 9
Tony Sale's
Codes and Ciphers
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9
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Colossus II it hardly pays to do them : it is generally as quick
to do a long run and certainly more powerful.
The set total is normally taken at 1.5 sigma.
(e) Long runs after Breah-in.
(i) Given I and 2 (3+4)x/1x2x ) Good except on /-type links
(3+4)x/(1+2) )
(4+5)/1x2x Good on most links
4=5/=1=2 Extreemly powerful on /-type
links, and good on all.
Hopeless on pure German.
(ii) Given 3 and 4 1x2x/(3+4)x Good on punctuation..
(1+2)/3,4x Good on language on punctuation.
(lii) Given 4 and 5 1=2/=4=5 Good on /-type links.
1x2x/(4+5) Good on punctuation.
(d) Short runs for final
(i) Given 1,2,3,4. UUU Nearly always good.
555 Good except on pure German.
888 Fair
111 ) Occasionally good.
999 )
333 ) Good in language and so
FFF ) worth trying if 555 fails.
GGG )
There is a good composite run 5+/4, 1x2x : if this Is used,
care must be taken to see which of the other runs done are independent
of this.
The set total is normally taken at 2.5 sigma.
(ii) Given 1,2,4 and 5
555 ) One of these is usually good,
/// ) rarely both; the rule is that,
if xx?xx considerably exceeds
..?.., 555 is likely to be the
better, otherwise ///.
UUU neary always good.