A growing reference list and documentation project for computer chess engines.
To get a quick impression, see current releases
A complete list can be found here: CCI Ratings or here
To get an impression of a single engine page, see: Stockfish or Raphael
I am also experimenting with Lichess Bots:
The Computer Chess Index (CCI) is an open and continuously evolving attempt
to document, organize, and preserve information about computer chess engines —
their origins, versions, and development over time.
The goal is to provide a reliable reference structure for anyone interested in
the technical and historical landscape of computer chess.
This repository begins as a personal initiative,
built around data collection, normalization routines, and transparent reporting.
- Collecting and verifying public information on known chess engines
- Building a clean, consistent data model for long-term use
- Publishing regular update reports and basic metadata exports
- Exploring automated data imports and validation workflows
| Folder | Purpose |
|---|---|
/Releases/ |
YYYY.MM Overview of that months releases |
/lists/ |
complete lists of engines and evaluations |
/engines/ |
Engine overviews |
/docs/ |
General documentation and background notes |
Early stage – initial data gathering and format definition.
Expect frequent revisions and structural changes.
If you’d like to contribute by sharing verified information,
suggesting structure improvements, or testing data workflows,
contributions and feedback are welcome.
"With cautious skill, tap by tap — a small chip of rock, and no more, perhaps, in a whole anxious day — so could we work, and as the years went by we should open up new ways, and display far chambers that are still dark, glimpsed only as a void beyond fissures in the rock."
This project is maintained voluntarily. Support channels like GitHub Sponsors are not set up yet. If you wish to support, I'll happily activate support channels.
Metadata and documentation are released under CC BY-SA 4.0.
All referenced binaries or original works remain property of their respective authors.
This is not an official archive or institution — just a careful,
structured, and long-term effort to make sense of the evolving field of computer chess.
“Every engine is a reflection of its time.”
Leave me a note in discussions
or
mail to: computer-chess-index (at) proton.me