Something that’s been bugging me is the fact that with the z32 he suddenly starts referring to it as a code and not a cipher. Why the change ?

Probably because codes and ciphers are different. Ciphers involve the changing of letters into something else, or rearranging them. Whereas a code changes entire words, sentences or phrases. Therefore, the Z13 and Z32, which cannot be solved in absence of a key, are probably answered by a slightly different method. Hence why Zodiac called the Z32 the Mount Diablo code. Identify where each word begins and you may be on to something.

Something that’s been bugging me is the fact that with the z32 he suddenly starts referring to it as a code and not a cipher. Why the change ?

Probably because codes and ciphers are different. Ciphers involve the changing of letters into something else, or rearranging them. Whereas a code changes entire words, sentences or phrases. Therefore, the Z13 and Z32, which cannot be solved in absence of a key, are probably answered by a slightly different method. Hence why Zodiac called the Z32 the Mount Diablo code. Identify where each word begins and you may be on to something.

Exactly Richard, you echo my thoughts. This was the chain of thought I was going down since the 340 was broken. Given the complexity of the 340 their is a strong chance that Z knew that the Z13 & Z32 would have been impossible to crack if ciphers, hence the reason he referred to them as codes multiple times. He was basically telling us point blank that they were not ciphers, they were instead something completely different.

If we interpret the Z32 as a code rather than a cipher, then I want to make a couple observations that I think may be relevant to the solution.

On the 1st line, there’s a filled triangle directly above the (+) on the second line. This has always looked to me like a reference to Mount Diablo, since he draws a (+) over the mountain on the map. My gut tells me that’s important somehow.

To a lesser extent:

The 1st line ends with uORTG, which always resembled “north” to me.

The second line has HCE, which always made me think of “inches.”

I won’t expand too much on my answers to the codes (don’t want to bore people too much), suffice to say, when you consider that the Z32 has 29 unique characters, it is unsolvable without a key, but opens up the possibility that the key to the words in the Z32 (hence a code) resides within the limited symbols he did provide. Take for example the crosshairs on Mount Diablo. He could easily have just placed his full crosshairs over the peak, but carefully left the centre free to place an X. We have a part triangle and an emphasized circle on the following communication, set at 4 radians and magnetic north. The C, X and ∆ are all present in the Z32. This may be the window into the words you are looking for (or at least their beginning).

One thing of interest regarding the map code is the use of the omega symbol.

“ The term angular velocity can also be stated with a letter symbol ω, which is the lowercase Greek letter Omega. Therefore, Omega is equal to so many radians per second.”

https://www.etcourse.com/relation-radia … cuits.html

CODE is the unknown text (or symbols. It is the enCODEd cleartext. CLEARTEXT is the readable opposite which can be encoded into a code and back. CIPHER is often enough mistaken for the word ‘code’ but instead it means the code in relation to the WAY of encryption / decryption: Eg. a Vigenere cipher. To talk about this it is not necessary to read the code (it can exist for itself). Eg. to know about the Dorabella CIPHER is one thing but reading the Dorabella CODE is a different one. CIPHER rather relates to the method instead of the symbols.

"After 5 years, the CODE has finally been solved. It indeed was a simple substitution CIPHER consisting of 83 different symbols. The CLEARTEXT has already been published. The KEY, however, was not yet given to the public. Next week, however, there will be a presentation of the CIPHER as of how the CODE can actually be encrypted step by step."

Nowadays, the word ‘cipher’ is often enough equally used to the word ‘code’.

In the past, there even were different words: ‘Cryptogram’ for code. The method, instead of ‘cipher’, there was ‘cryptosystem’. And instead of ‘cryptanalyst’ there existed the term ‘cryptomathematician’. ‘Cryptanalytics’ is still used as an umbrella term for solving codes / ciphers (or trying to do so).

Military Cryptanalysis Part 1 (Friedman), NSA Washington 25; 1952

QT

I think you are right that it is a code. I just posted a new subject about my proposed solution for the Z32 code. It is not a substitution solution, but rather a direction and distance.