# The substitution changes with position in the line (a line-keyed or position-keyed…

> Ruled out: The substitution changes with position in the line (a line-keyed or position-keyed alphabet), so that the same plaintext at the same offset in…

Source: https://mysteriesdept.com/mysteries/voynich-manuscript/answers/ANS0D8FZXXA51CM/the-substitution-changes-with-position-in-the-line-a-line  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Voynich Manuscript](https://mysteriesdept.com/mysteries/voynich-manuscript)[Is it a cipher of a known language?](https://mysteriesdept.com/mysteries/voynich-manuscript/questions/QST08JG2PB04SQP/is-it-a-cipher-of-a-known-language)Answer

Answer · Voynich Manuscript

# The substitution changes with position in the line (a line-keyed or position-keyed…

The substitution changes with position in the line (a line-keyed or position-keyed alphabet), so that the same plaintext at the same offset in different lines appears as glyph-disjoint isomorphs.

**Ruled out** Answers **1** questionDeductiveTested0

## Where it stands

**Ruled out** None pieces of evidence for, one against.

## What it predicts

- consecutive lines coincide at matched positions more than random line pairs
- beyond what shuffling words within lines preserves; glyph-disjoint isomorph pairs occur at matched line positions more often than in the within-line word shuffle

## Evidence none for · 1 against

[Word-as-letter, periodic transposition, position-keyed alphabets, single nulls and sorted…](https://mysteriesdept.com/mysteries/voynich-manuscript/evidence/EVD0D8GDPB24104/word-as-letter-periodic-transposition-position-keyed)

Established · weighs heavily · F-022

AGAINST

## Tested by 4 runs

| Run | Measured | Result | Against | Decision | Date |
|---|---|---|---|---|---|
| RUN-015 | coincidence between consecutive lines at same position | 0.1049 | Random line pairs 0.0943 · words-in-lines shuffle 0.0984 | See note | 22 Oct |
| RUN-032 | coincidence between consecutive lines at same position | 0.104 | Random line pairs 0.0964 · words-in-lines shuffle 0.1026 | See note | 22 Oct |
| RUN-016 | glyph-disjoint isomorph pairs at same line position / anywhere | 13547/546226 | Words-in-lines shuffle 14969/628274 | See note | 22 Oct |
| RUN-033 | glyph-disjoint isomorph pairs at same line position / anywhere | 8044/313100 | Words-in-lines shuffle 9162/341748 | See note | 22 Oct |

## The questions it answers

[Is it a cipher of a known language?](https://mysteriesdept.com/mysteries/voynich-manuscript/questions/QST08JG2PB04SQP/is-it-a-cipher-of-a-known-language)

Part of [What kind of text is it?](https://mysteriesdept.com/mysteries/voynich-manuscript/questions/QST08JG1S1G6D9T/what-kind-of-text-is-it)

Most likelyNo answer ahead

## Cite it

```
Mysteries Department. (2026). The substitution changes with position in the line (a line-keyed or position-keyed… [Answer ANS0D8FZXXA51CM]. https://mysteriesdept.com/r/ANS0D8FZXXA51CM
```

Key

**ANS** 0D8FZXXA51CM

Kind

Answer · hypothesis

Origin

Deductive

Proposed

[Session 6](https://mysteriesdept.com/mysteries/voynich-manuscript/sessions/SES0D8C46P04BVW/session-6-phase-2-registered-tests-brute-force-five-surveys) · 22 Oct 2026

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