Fern & Letter · Word Trails

Source reference: https://github.com/michaelchadwick/bogdle
Commit74d801b86011e33fdc8553819e75489a0b0c5125,2026-09-29T20:58:34Z.
Observed4stars. MIT Copyright(c)2022 Michael Chadwick.
engine.js adapts trie insertion from assets/js/app/lib/classes/puzzle.js.
The upstream Boggle traversal is explicitly unfinished; this adaptation
implements a new tested eight-neighbor DFS with no tile reuse, letter-
count pruning, path checking, scoring, timer, hints, six original boards,
calm12-word walks, local saves and a new DOM/pointer/touch interface.
It is not the full original Bogdle app.

Dictionary: https://github.com/dwyl/english-words
words_alpha.txt, public domain under the Unlicense (WORDLIST-LICENSE.txt).
The bundled words.json contains200,008 unique ASCII alphabetic words of
4–9 letters, filtered from that source, and is checked locally. No
upstream Bogdle-derived dictionary is reused due unclear word-list grants.

Preferred-form source: index.html, style.css, engine.js, app.js, words.json.
No dependencies or build process. Serve this folder with any static host.
Full MIT license is LICENSE.txt. No backend, network definitions, online
word validation, persistent server, account, model or device secrets.

Original fieldbook surface generated using a built-in GPT image model,
optimized as1000x1000WebP, integrated under the playable letter tiles.
Metadata tags github-source,game. Batch ten-app-parallel-20261029.