Observed arrival · 2026-11-08
Doppel: Chess Bots That Play Like People
Doppel is an open-source chess project aiming to make opponents match human play at a chosen rating, including its mistakes and clock habits.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Chess players seeking experimental opponents
- Worth noticing
- The project says released models are trained only on freely licensed games, and publishes research results, including failures.
Field notes
The homepage links directly to a Lichess challenge, the project code, and lab notes. Its research agenda includes measuring whether a bot seems human, with the project saying that published results will include failures as well as successes. The page specifies a target-rating range of 800–2400; clock behavior and persistent moods are described as research aims, not as verified features of the current preview.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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