5 FiveLetterWords

Data and research

Wordle research data

Download the open corpus behind the site's opener rankings, difficulty explorer, trap analysis, feedback atlas, and opening-pair research. Every release includes methods, schemas, provenance, and checksums.

Release
v2026-07-15
Published
2026-07-15
Answer history through
2026-07-14
Datasets
10
License
CC BY 4.0 for derived statistics and documentation
Browse downloads Download manifest

v2026-07-15

Download the release

Every table is supplied as CSV and JSON, and every file has a SHA-256 checksum. The preserved answer-pool snapshot is date-free; difficulty rows never include answer words.

Reproduce and reuse

Methods, schemas, and provenance

Start with the README, then use the data dictionary or JSON Schema to integrate the files. The methods document records every bound and caveat.

README.md METHODS.md PROVENANCE.md LICENSE.txt CITATION.cff schema.json

Method

What the figures mean

The research release's complete v5 opener table covers every accepted guess in its captured snapshot. It is separate from the site's bounded current-policy recommendations. Average guesses, win rate and volatility come from normal-mode games capped at six guesses under one fixed continuation policy. Average guesses and volatility cover solved games; win rate is the share solved within six. Those games use 2,354 possible answers. Entropy and average answers left are separate first-turn calculations over 2,358 possible answers. The manifest records the source files and checksums for both.

The difficulty dataset applies a globally completed cutoff and omits answer words. Past-answer aggregates never provide a list matching dates to answers. Trap probes search the documented 2,500-word splitter set; pair results exhaust their published 250-opener candidate universe, not all 110 million accepted-word pairs.

ScopeOpeners, puzzle pressure, one-slot traps, first-turn branches, player-facing vocabulary, and fixed opening pairs.
SourcesCaptured public Wordle lists, globally completed daily history, replay paths, and provenance-bound feedback calculations.
LimitsResults depend on the captured pools and stated policies. They are reproducible benchmarks, not claims of globally optimal play or representative human averages.

Inputs and changes

Sources and changes

The Wordle guess list comes from the archived Wordle guess list published by dracos. The original answer pool is sourced from the public Wordle answer array, then extended when a new answer appears in the daily history.

  1. v2026-07-15 published 2026-07-15: expands the release into a documented corpus with complete opener outcomes, spoiler-safe difficulty rows, trap families, popular-opener branches, a vocabulary-screened benchmark, pair leaders, schemas, and a data dictionary.
  2. Earlier releases: v2026-07 and v2026-07-11 used “exact” in the opener dataset label even though one strategy chose all later guesses. Those files remain unchanged so existing citations and checksums stay valid; use the current release for the clearest labels and notes.

Syndicate and cite

Feeds and live embeds

Use the immutable release files for analysis. Use the spoiler-safe feeds and SVG cards when a page, newsletter or dashboard should update automatically.

Research Atom feed Difficulty JSON Feed Observatory aggregates CSV
Live difficulty card <img src="https://www.fiveletterwords.io/embed/difficulty.svg" alt="Completed Wordle puzzle difficulty coverage">
Opener card <img src="https://www.fiveletterwords.io/embed/opener/crane.svg" alt="CRANE Wordle opener benchmark">
Feed boundaryThe rolling JSON feed intentionally omits answer words; dated answer research belongs in the guarded archive and immutable releases.

Citation

Cite the specific result

Use the citation below for this release, or cite a specific ranking or guide when referring to one result.

FiveLetterWords.io (2026-07-15). FiveLetterWords research release v2026-07-15: opener, difficulty, trap, feedback-branch, vocabulary, opening-pair, and aggregate Wordle datasets [Data set]. https://www.fiveletterwords.io/data/releases/v2026-07-15/manifest.json

Check a result

The downloadable manifest records the inputs, checksums and calculation scope for this release. The Math explains the scoring, and the About page has contact details for reporting a discrepancy.