# Z13 uses a further step (transposition, nulls, or a key unlike Z408's), as Z340 did.

> Still possible: Z13 uses a further step (transposition, nulls, or a key unlike Z408's), as Z340 did.

Source: https://mysteriesdept.com/mysteries/zodiac-ciphers/answers/ANS0D71PHVM3PW3/z13-uses-a-further-step-transposition-nulls-or-a-key-unlike  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Zodiac ciphers](https://mysteriesdept.com/mysteries/zodiac-ciphers)[What does Z13 say?](https://mysteriesdept.com/mysteries/zodiac-ciphers/questions/QST0D71PEE83PWE/what-does-z13-say)Answer

Answer · Zodiac ciphers

# Z13 uses a further step (transposition, nulls, or a key unlike Z408's), as Z340 did.

Z13 uses a further step (transposition, nulls, or a key unlike Z408's), as Z340 did.

**Still possible** Answers **1** questionPublished0

## Where it stands

**Still possible** Its tests haven't settled it: one piece of evidence for, none against. It needs two reviews to be accepted.

## What it predicts

- Its symbols overlap with Z340's alphabet in ways a pure substitution would not need.

## What would rule it out

- A substitution reading is confirmed by an independent record.

## Evidence 1 for · none against

[Z340 showed the writer added transposition and irregularities to homophonic substitution.](https://mysteriesdept.com/mysteries/zodiac-ciphers/evidence/EVD0D71PJ3E3KHB/z340-showed-the-writer-added-transposition-and)

Suggestive

FOR

## The questions it answers

[What does Z13 say?](https://mysteriesdept.com/mysteries/zodiac-ciphers/questions/QST0D71PEE83PWE/what-does-z13-say)

Open4 answers, none ahead

## Cite it

```
Mysteries Department. (2026). Z13 uses a further step (transposition, nulls, or a key unlike Z408's), as Z340 did. [Answer ANS0D71PHVM3PW3]. https://mysteriesdept.com/r/ANS0D71PHVM3PW3
```

Key

**ANS** 0D71PHVM3PW3

Kind

Answer · hypothesis

Origin

Published

Version

1

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

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