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Frame from Lichess founder Thibault Duplessis lectures on Lichess (2017) Plays via YouTube's privacy-enhanced embed

Lichess founder Thibault Duplessis lectures on Lichess (2017)

Lichess
Talks
YouTube
3 HN users recommended this talk3 months2020–2022 score 3
Years with an HN recommendation, 2007–2026

HN commenters point to it as a good talk on how one person built a major free, open-source chess server with few resources, and on the cheating problem.

Lichess founder Thibault Duplessis talks at Big Techday 10 in Munich about how Lichess works and how he built it. He covers the project's origins and technical challenges including cheating detection.

“He has a good talk about how he did it here” (HN, 2020)

3 recommendations · 1 citations · Talks · intermediate · partly dated

4 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@oli5679 Jan 2021 Recommends
on HN thread A bit on scaling chess.com's database
If anyone is interested in online chess, [link] is a really interesting project. It is non-for-profit, avoiding freemium upselling and instead relying on user donations Here is a great talk by the founder [this video] And here is the open-sourced code. [link]
Talk by the Lichess founder on the project.
@jka Jul 2022 Recommends
on HN thread Irwin – the protector of Lichess from all chess players villainous
Related to this, there's a really good talk by the founder of lichess that includes an overview of the cheating problem, and the techniques they use to detect and manage it. The relevant section of the video on YouTube is: [this video]
Overview of the cheating problem and detection techniques at Lichess.

Citations, criticism and jokes

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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