Open Source Android Chess Games

Stockfish is a free, powerful UCI chess engine derived from Glaurung 2.1. Stockfish is not a complete chess program and requires a UCI-compatible graphical user interface (GUI) (e.g. XBoard with PolyGlot, Scid, Cute Chess, eboard, Arena, Sigma Chess, Shredder, Chess Partner or Fritz) in order to be used comfortably. Read the documentation for your GUI of choice for information about how to use Stockfish with it. Stockfish is a 11-time winner of the Top Chess Engine Championship. Stockfish is open source (GPLv3 license). That means you can read the code, modify it, and contribute back. You can use Stockfish on your computer or on your iOS or Android device. So you can get world-class chess analysis, wherever you are. The Stockfish engine features two evaluation functions for chess, the classical evaluation based on handcrafted terms, and the NNUE evaluation based on efficiently updatable neural networks.

Open source chess engines that support the Universal Chess Interface (UCI) protocol or Chess Engine Communication Protocol (XBoard). They are written in the C, C++, Go and Rust programming language. C and C++ based chess engines were generated with Android NDK, Clang and GCC. Go and Rust based chess engines were generated with their correspondent compilers. This was done on different platforms like Linux, Termux and Windows. Every zip archive contains a readme file with further information (e. g. link to the source code). Chess engines are located in the libs directory and are available for arm64-v8.2a-dotprod, arm64-v8a, armeabi-v7a, x86 and x86_64 based devices. If a chess engine supports NNUE (Neural Network Updated Efficiently) technology and the network is not embedded in the binary, you will find the missing network file in the networks directory. Requires a chess app that has full access to the internal memory (e.g. Chess for Android 6.2.1 or DroidFish).

Installation files for chess engines that provide the Open Exchange (OEX) format (links to the source code of the built-in chess engines can be found in the corresponding zip archives). The APK files "Chess Engines" and "Chess Engines Bonus" contains almost all UCI compliant chess engines that are already published here. The APK file "Chess Engines Bonus" contains chess engines without embedded networks. Chess engines in this package are not ready to use. The missing network files can be found in the assets directory (just rename apk to zip). The APK file "XBoard Chess Engines" contains chess engines that support the Chess Engine Communication Protocol (XBoard). Crafty and Phalanx are included, for example. Requires a chess app that supports the OEX format (e.g. Chess for Android or DroidFish).

Open source scripts and tools for Android. Every zip archive contains a readme file with further information (e. g. link to the source code). Chess tools are located in the libs directory and are available for arm64-v8a, armeabi-v7a, x86 and x86_64 based devices. CECSA (Chess Engine Compiler Script for Android) and CETSA (Chess Engine Tournament Script for Android) are scripts for Termux. They need to be extracted in the home directory of Termux. There is also an installation script for CECSA (cecsa.sh) that can be used to install a complete compilation environment with all necessary compilers, tools and libraries under Termux. Note that scripts and tools requires Termux.

Blind Chess also known as "Dark Chess" (暗棋) or "Banqi" or Half Chess , is a two-player Chinese board game played on a 4x8 grid, or half of the xiangqi (Chinese Chess) board. This application is using Taiwan rule. AI is using basic minimax tree structure and some rules. Advanced algorithm such as Upper Confidence bounds applied to Trees and Monte Carlo Tree Search are NOT used. This app is single player vs computer only. For English user, Christakis Giorgios made Software Requirements Specification(pdf file), it will help anyone that downloads this application to understand basic blind chess and use it. You can download this pdf in Files->Specification folder.

Simple chess program for Android

A console/text based chess program with XBoard/CECP and UCI API, available on all major platforms. You may need a graphical chess interface to use it. Please refer to README.md in the files section for installation instructions. The last stable release is 2.1.9 and has been released on 19/08/2025. Belofte 0.2.0 till 0.9.20 (c/c++): Xboard 1 & 2 (CECP) - Linux/Unix/(Windows) Belofte 2.1.1 and up (c++11) : UCI and Xboard 2 - Linux/Windows/Mac/Android/... For access to code, please clone the git repository. Compiles and Runs on 32/64 bit on Windows, Mac, Linux, Android (ARM/x86) and Raspberry. Released under GNU v2 license. (means free to copy, free to modify, free to use, ...) Works fine with Arena/Cutechess/BanksiaGui/Winboard/Xboard/...

Demo version of RelaXChess game, You can play against own written wow chess engine, or other users, rewind games forward and backward, easily restart again or if needed replay the game on demand. Attractive user interface and effects. If You like to You can see other games being played, windows, android

AndroidKnight is a 3D chess for the Android Platform now free.

Dark Knight is an Android chess application specifically designed for Honeycomb tablets. It is based on DroidFish and the Stockfish engine, and includes several additions such as Bluetooth play and difficulty selection.

A simple chess board (no ia) application for Android. The board size adjusts to screen size and orientation.

Logical chess game with elements of the study of history. Supports Ukrainian, Russian, Belarus, English languages.

Board2D.js is a JavaScript library that allows you to quickly develop 2D board games for the web. It is extremely easy to use and contains a very rich API. Download the ZIP, and extract it to a folder. Inside it, the "lib" folder contains the javascript library file. You can include it in your projects as-is. For an example of how to use the library, you can find two mini samples of tic-tac-toe and chess in the examples directory. There is no API manual currently, but if you use an editor like Brackets, it will show you the list of functions. Just do not call the functions which start with "__" as those are meant for internal use by the library itself. There is a readme file included in the ZIP which shall get you started.

Derived from 0xBenchmark, stripped native code parts (pure Java), added Chess Benchmark for comparing different Android versions and Runtimes to each other.

Chess Cheats for Personal use only this software is not for tournament or competitions (Chess World Cup)