Archived immutable release
Research release v2026-07-15
A permanent, human-readable record of this release's datasets, calculation scope, source files, licenses, and checksums. Cite this page when you need a stable description; use the manifest and file checksums to verify an analysis.
- Release ID
- v2026-07-15
- Published
- Answer history through
- Datasets
- 10
- Schema version
- 3
- Release status
- Superseded, still citable
Identity
One stable page for this release
The release ID and canonical page stay fixed. The downloadable files are manifest-listed and are never replaced after publication. A newer release receives a different ID and URL.
https://www.fiveletterwords.io/data/releases/v2026-07-15/v2026-07-15https://www.fiveletterwords.io/data/releases/v2026-07-15/manifest.jsonFiles and integrity
Download the datasets
Each listed file belongs to this exact release. Compare the SHA-256 value below with the downloaded bytes before relying on a long-lived local copy.
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Complete normal-mode opener benchmark
Every accepted guess, with six-turn outcomes, turn distributions, and first-guess partition measures.
14,855 records · CC BY 4.0-
opener-rankings.csv · 1,855,679 bytes
SHA-256 f8d611a59100f4c9cbaa57f1a4caf4ce8c0f44b5b40820b8a96652d48c8e5413 -
opener-rankings.json · 8,972,721 bytes
SHA-256 daec028a844d6d2c09adacff0b822ee5e64f20c0e68c195262f615e9d55ecaae
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opener-rankings.csv · 1,855,679 bytes
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Six-turn simulation answer pool
The possible answers used in the six-turn opener test.
2,354 records · upstream source terms-
full-game-answer-pool.txt · 14,124 bytes
SHA-256 d3c082e210363b6fb821c3009008c74204a937e48b63fd3ad1ffc974c79838ae
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full-game-answer-pool.txt · 14,124 bytes
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Aggregate answer-history summary
Spoiler-free totals from completed Wordle puzzles in the archive.
5 records · CC BY 4.0-
answer-history-summary.csv · 158 bytes
SHA-256 76f51ea9f963b0ea16c5655f1ad450889c57a193712e9106e3109ff5e69063ed -
answer-history-summary.json · 729 bytes
SHA-256 fe7fc623bb687db7fe1d527b055d266a920fdc6921346504e5ca8d2217aa5648
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answer-history-summary.csv · 158 bytes
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Letter frequencies in recorded answers
How often each letter appears in each position, without linking answers to dates.
151 records · CC BY 4.0-
letter-frequency.csv · 3,749 bytes
SHA-256 140aa5d35a33a0a3df952efa2e276ff9e05bb1d8f08489d62a680f14ba809c3d -
letter-frequency.json · 10,795 bytes
SHA-256 d289f199a56f332b0625089097b8bd53746973bb222a3b6a12352cbf6ce16e50
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letter-frequency.csv · 3,749 bytes
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Spoiler-safe puzzle difficulty rows
A dated pressure benchmark for every completed puzzle, with answer words omitted.
1,852 records · CC BY 4.0-
puzzle-difficulty.csv · 134,842 bytes
SHA-256 64538694248d91893130e5b0b1cd442a5305e1e0dd4be56155fe8c7527669dd6 -
puzzle-difficulty.json · 674,076 bytes
SHA-256 8fc2e472a65cb7a0aa8e5b7de339ec4354bdc6c38013e467d7584dd30e1245b0
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puzzle-difficulty.csv · 134,842 bytes
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One-slot Wordle trap-family census
Every three-word-or-larger one-slot family, plus bounded probe and candidate-only plays.
337 records · CC BY 4.0-
trap-families.csv · 41,251 bytes
SHA-256 2160da11656eb238ff76a40944fde7e641276696756a32aeb4eec33c69d411c0 -
trap-families.json · 159,968 bytes
SHA-256 196cf26fa6daca2b466a4eda7e5a05683fca23a9985634786b595f2b921fa342
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trap-families.csv · 41,251 bytes
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Popular-opener feedback branch atlas
Every reachable first-turn result for 40 famous and leading opening words.
5,144 records · CC BY 4.0-
opener-feedback-branches.csv · 213,799 bytes
SHA-256 fe6fe356a08457a9247fcda3afd843a5a269278059492d5b638bfabbb5e406d9 -
opener-feedback-branches.json · 883,237 bytes
SHA-256 b996c9a29ecaa67c02e41788060f4cdc82b8f09a78f846df6d5e1d1bc459e660
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opener-feedback-branches.csv · 213,799 bytes
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Player-facing vocabulary opener benchmark
Opening benchmarks filtered through the site's player-facing vocabulary policy.
3,500 records · CC BY 4.0-
familiar-opener-benchmark.csv · 321,209 bytes
SHA-256 7570281890aa1fd4f25860801dd6d6ea67831912caa15dd9ecee28a23ecb393c -
familiar-opener-benchmark.json · 1,182,641 bytes
SHA-256 ab55321849ed66053fa84f4e052f88598426b488598b229efbaae7eb3fdc5a99
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familiar-opener-benchmark.csv · 321,209 bytes
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Opening-pair leaders and Pareto frontier
The strongest opening pairs found by evaluating every pair among 250 candidate openers.
500 records · CC BY 4.0-
opening-pair-frontier.csv · 25,573 bytes
SHA-256 5a2cbcad5fba4652ab462ffa7dcf08984b1b67c1d7490d0d13cf3803809e48b1 -
opening-pair-frontier.json · 123,541 bytes
SHA-256 4950105868908b9de2d8c4d17210e4291d42b39dce724c39a1260f2522a4ba13
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opening-pair-frontier.csv · 25,573 bytes
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Research corpus data dictionary
Field types, nullability, and plain-language definitions for the release.
92 records · CC BY 4.0-
data-dictionary.csv · 8,109 bytes
SHA-256 d23ad29e2137a6040b45d4f57125bf3f41175fda374377a1488eff6b4cf5bbb9 -
data-dictionary.json · 14,184 bytes
SHA-256 18aee47186028e66269e2c2fbe8238b08fbcff68fb96a8fadfe69fd679397c98
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data-dictionary.csv · 8,109 bytes
Documentation
Methods, provenance, and schemas
Start with the README and methods. The provenance record identifies the captured inputs, while the data dictionary and schema describe the fields.
Scope and limits
What this release does—and does not—claim
The derived statistics describe the captured word pools and documented solver procedures. They do not establish perfect play or a representative human score. Answer-history aggregates use only the stated cutoff. Where included, puzzle-difficulty rows omit answer words and preserved upstream inputs retain their source terms.
Citation
Cite the release
Link to this page so readers receive the visible scope and caveats as well as the downloads.
FiveLetterWords.io (2026-07-15). FiveLetterWords research release v2026-07-15 [Data set]. https://www.fiveletterwords.io/data/releases/v2026-07-15/
Release history
Other immutable releases
Use the newest release for current work. Older pages remain available so existing citations and reproduced analyses do not move.
- v2026-09-01, published 2026-09-01, answer history through 2026-08-31.
- v2026-07-13, published 2026-07-13, answer history through 2026-07-12.
- v2026-07-11, published 2026-07-11, answer history through 2026-07-10.
- v2026-07, published 2026-07-09, answer history through 2026-07-05.
Questions, corrections, and reuse
See the developer reference for rolling feeds and client rules, the press page for responsible research reuse, or email [email protected] to report a discrepancy.