RaccoonChessSigma

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TypeScript Chess Library and Engine

RaccoonChessSigma is a free, powerful chess engine written in TypeScript. It is primarily inspired by Vice, Hakkapeliitta, Ethereal, Stockfish, LeelaChessZero, and a number of open source projects and aims to serve as both reference for other authors and a high-end engine.

RaccoonChessSigma evaluates chess positions using either of the following evaluation algorithm:

• raccoon: uses the classical evaluation based on handcrafted terms. It runs efficiently on most CPU architecture
• raccoonZero: uses a deep convolutional neural network(NN)

By following the Getting Started Guide, a user can utilize either of the engines as a UCI-compliant Chess Engine or as an extensive JavaScript Chess Library.

Table of Contents

• Code of Conduct
• Guides
  • Maintainers Guide
  • Contributing Guide
  • Getting Started Guide
• Development
• Architecture
• Versioning
• Security

Development

TODO

Architecture

To understand project, it’s imperative you understand RaccoonChessSigma architecture.

Versioning

RaccoonChessSigma uses x.y.z where x, y, and z are integers representing major.minor.patch.

• Major is incremented when the release contains breaking changes, all other numbers are set to 0. That is, from x.y.z to {x+1}.0.0.
• Minor is incremented when the release contains new non-breaking features, patch is set to 0. That is, from x.y.z to x.{y+1}.0.
• Patch is incremented when the release only contains bugfixes and very minor/trivial features considered necessary. That is, from x.y.z to x.y.{z+1}.

Please refer to sematic versioning for more information.