Banburismus: Difference between revisions

Scritchmus was the part of the Banburismus procedure that could lead to the identification of the right-hand (fast) wheel. The Banburist might have evidence from various message-pairs (with only the third indicator letter differing) showing that "X = Q−2", "H = X−4" and "B = G+3". He<ref>[[Joan Clarke]] worked as a Banburist. {{Cite web | last = Lord | first = Lynsey Ann | title = Joan Elisabeth Lowther Clarke Murray | work = honours project | publisher = University of St Andrews | year = 2008 | url = http://www.gap-system.org/~history/Printonly/Clarke_Joan.html | accessdate = 16 November 2009 }}</ref> would search the deciban sheets for all distances with odds of better than 1:1 (i.e. with scores ≥ +34). An attempt was then made to construct the 'end wheel alphabet' by forming 'chains' of end-wheel letters out of these repeats.<ref>