https://github.com/razvanfilea/chessengine

A UCI-compatible Chess Engine written in C++20 with an Android and WearOS Interface
https://github.com/razvanfilea/chessengine

android chess chessengine cpp20 evaluation futility-pruning iterative-deepening-search minimax-alpha-beta-pruning quiescence-search

Last synced: 9 months ago
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A UCI-compatible Chess Engine written in C++20 with an Android and WearOS Interface

• Host: GitHub
• URL: https://github.com/razvanfilea/chessengine
• Owner: razvanfilea
• License: gpl-3.0
• Created: 2019-01-08T19:21:58.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2024-12-27T15:46:21.000Z (over 1 year ago)
• Last Synced: 2025-05-23T19:39:04.706Z (about 1 year ago)
• Topics: android, chess, chessengine, cpp20, evaluation, futility-pruning, iterative-deepening-search, minimax-alpha-beta-pruning, quiescence-search
• Language: C++
• Homepage: https://play.google.com/store/apps/details?id=net.theluckycoder.chess
• Size: 1.56 MB
• Stars: 5
• Watchers: 2
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

          
# ChessEngine

[![Actions Status](https://github.com/TheLuckyCoder/ChessEngine/workflows/Android%20CI/badge.svg)](https://github.com/TheLuckyCoder/ChessEngine/actions)

[![Actions Status](https://github.com/TheLuckyCoder/ChessEngine/workflows/C++%20CI/badge.svg)](https://github.com/TheLuckyCoder/ChessEngine/actions)

An UCI-compatible Chess Engine written in C++20 with an Android and WearOS UI written in Jetpack Compose.

This project uses the evaluation values (in the file Evaluation.cpp) from the Stockfish Chess Engine, licensed under GNU GPL 3.0.

## Features

- Search:

  - AlphaBeta Pruning

  - Aspiration Window

  - Iterative Deepening

  - Futility Pruning

  - Reverse Futility Pruning

  - Null Move Pruning

  - Late Move Reductions

  - Quiescence Search

  - Lazy SMP

- Move Ordering:

  - Hash Move

  - MVV/LVA

  - Killer heuristic

  - History heuristic

- Evaluation:

  - Evaluation Tapering

  - Piece Square Tables

  - Threats/Attacks

  - Pawn Structure (Connected/Isolated/Double/Passed)

  - Piece Mobility

  - Long Diagonal Bishop

  - Bishop Pairs

  - Rooks on Open Files

  - Rooks on Queen Files

  - Pawn Shield

- Other:

  - Zobrist Hashing

  - Transposition Table

  - Pawn Structure Table

## Building

### Android and WearOS

To build the for project for Android you will need at least:

 - Android Studio Arctic Fox

 - Android SDK Version 31 (Android 12)

 - NDK 23.1.7779620

### Linux

Please note that the Linux version of the engine has no UI but can be used with any UCI-compatible chess interfaces.


To build the for project for Linux you will need at least:

 - CMake 3.18

 - C++20 Compiler:

    * GCC 10

    * Clang 13

## Compatible Interfaces

- [Arena](http://www.playwitharena.com)

- [Cutechess](https://github.com/cutechess/cutechess)

## License

Copyright (C) 2019-2021 Filea Răzvan Gheorghe

    This program is free software: you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation, either version 3 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program.  If not, see .