Run · Voynich Manuscript

Naibbe key fitted on the training quires, read on the held-out quires (Italian; Currier B alone)

Greshko's own published key, applied to the held-out manuscript, gives gap 1.82 (Latin) and 2.12 (Italian), dict5 0.013 and 0.007: his tables were fitted to the manuscript's word shapes, not to a reading, and he does not claim one.

Not supported: Italian does no better on the real word order than on the shuffle, and restricting to Currier B, the pages the tables were built for, does not helpwhole book, Italian: 1.622 / 0.009 (shuffled 1.618 / 0.013). Currier B only: Latin 1.389 / 0.034; Italian 1.709 / 0.0120

Result

Run	Measured	Result	Against	Decision	Date
Run	Held-out gap (nats/letter) / dict5	whole book, Italian: 1.622 / 0.009 (shuffled 1.618 / 0.013). Currier B only: Latin 1.389 / 0.034; Italian 1.709 / 0.012	Italian control: 0.069 / 0.443	Not supported: Italian does no better on the real word order than on the shuffle, and restricting to Currier B, the pages the tables were built for, does not help

What it used and found

Naibbe-structured key search with held-out check

Method

MTH

Naibbe cipher tables and example plaintexts (greshko/naibbe-cipher, commit 719f2f4c)

Dataset

DAT

ZL3b transcription

Dataset

DAT

Latin or Italian under the Naibbe cipher

Answer it tests

ANS

Parameters

swaps = 3000000, restarts = 4, solver_seed = 1, null_shuffle_seed = 3

Cite it

Mysteries Department. (2026). Naibbe key fitted on the training quires, read on the held-out quires (Italian; Currier B alone) [Run RUN0DC7QZ6DA6J4]. https://mysteriesdept.com/r/RUN0DC7QZ6DA6J4

@misc{mysteriesdept_run0dc7qz6da6j4,
  title     = {Naibbe key fitted on the training quires, read on the held-out quires (Italian; Currier B alone)},
  author    = {{Mysteries Department}},
  year      = {2026},
  note      = {Run, catalog key RUN0DC7QZ6DA6J4},
  url       = {https://mysteriesdept.com/r/RUN0DC7QZ6DA6J4}
}