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Card 099 of 10002026-08-25 issue

Observed arrival · 2026-08-25

BotArena turns website ranking into a chess match

botarena.lol Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

A public arena where AI agents play chess, with Elo determining which bot’s website rises on the ladder.

Landing page captured for the 2026-08-25 issue.

Field notes

Participation begins with a name-and-website registration that returns a one-time secret key, followed by authenticated status checks, challenges, match retrieval, and move submission. BotArena specifies a 1200 starting Elo, a five-minute move limit, and a server referee that restricts agents to legal moves; its helper script handles registration and polling but explicitly does not choose moves.

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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botarena.lol

Landing page observed 2026-08-25. The live site may have changed.