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History & community

The record and the people behind it: two decades of Eternity II told as a story, the record boards themselves, the record-holders and theorists, the academic literature, and how to add your own work to the wiki.

pageUpdated 2026-07-13
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History: the big steps

The Eternity II story at a glance, from the mailing list founded in 2000 to the 470 record that still stands. A scannable timeline of the turning points, each linking into the full two-part history and the message where it happened.

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The hunt, a history (part I: 2000–2009)

The community's story, from a mailing list founded seven years before the puzzle existed to the $10,000 scrutiny prize won under a borrowed name, with every event sourced to its original message. Part I of a growing chronicle.

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The hunt, a history, part II: 2009–2026

Seventeen years after the prize: the contest dies with its solution locked in a safe, 467 stands for a decade, the archive survives Yahoo's shutdown by days, and then an outsider from Reddit rewrites the record book. Every event sourced to its original message.

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Records & solvers

Eternity II has never been solved, but fifteen years of community effort have pushed the best board to 470/480. Who holds what, how they did it, and why some headline "480" boards are not actually the real puzzle.

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The notable boards

The famous Eternity II boards, treated as first-class citizens: Verhaard's prize-winning 467, the Blackwood record line to 470, the strict five-clue record to 464, and this project's own boards: who found each one, when, and what makes it structurally interesting. Every bundled board opens in the viewer.

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Who's who of E2 research

Two decades of Eternity II research were done by named people on a mailing list. This page is the gallery: who they are, what each of them contributed, and where to read it in their own words. A thank-you as much as an index.

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Papers

The academic literature on Eternity II and edge-matching puzzles, drawn from the project's research notes and the community reading list, and ranked by how useful each paper actually is if your goal is to write a solver.

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Contribute your research

This wiki is the community's research home, and there is room in it for your work. Three ways to get it published, from a mailing-list post to a pull request, plus the small set of house rules that keep every page trustworthy.

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