Penny has announced the winners of the witch contest and my two favourites weren't amongst them... so now I'll never know who did them... unless someone tells me....
my absolute favourite was the dark 68 and my favourite cute one was the tortoise 138.
Anyone know???
Update: the tortoise is by happy d
Enigma 457: Divided by ex…
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From New Scientist #1608, 14th April 1988 [link] In the following division
sum, letters are substituted for digits. The same letter stands for the
same dig...
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