Was the small amount of circling an indication that the recipient of the message had some awareness of the scheme but didn’t succeed in decrypting? O…
So that part with the circled letters was the only page that had any circled letters? Yes. I inspected the book very thoroughly. What is the signifi…
More. That is all.
Maybe the symbols relate to the letters of the message, which are in the book, by some type of short forward or backward offset. Compare the frequenci…
I went to the library and inspected the book every page. There are no other pages with writings on them, but the circles around the letters on page 22…
The librarian found another page where someone circled letters. She sent me this picture and set the book aside for me to look at tomorrow, otherwise …
I looked for periodicity in bigrams, coincidence count unigrams, and a difference between bigram repeats starting in odd positions versus even positio…
I wondered if the short one from the second page might be a transposition key of some sort. There are cryptography books in the junior section of the …
What about this idea. If there was an inscription or transposition that makes a lot of pivots ( I am experimenting with one now which seems to work we…
I am not convinced that it is anything either, as a message. But, a thought is that Zodiac could have used some type of cyclic, mechanical, or mathema…
Here is the 340 cast into 16 columns, and the highlighted cells are P-16 that have the same symbols as P19. You can see the evenly spaced columns, whi…
How to observe the strange herringbone pattern 1. Make a list of all 321 P19 LRTB bigrams. 2. Read the message RLBT and make a list of all PX bigrams…
can you post up a heat map smokey What kind of heatmap? What do you mean? something along these lines.. when you did a heat map after we swapped lin…