Software project / S1

Digital Chess Game

A Java chess game with a graphical interface, complete move rules, undo functionality, and automated testing.

Java · Swing · Object-oriented programming · Automated testing

Project overview

Multiplayer Chess.

This project started off simple by using a two-dimensional character array to represent a chessboard and validate basic pawn movement.

After establishing the basics and understanding the skeleton of the logic, I expanded it into a local two-player application with an object-oriented rules engine, a Java Swing interface, legal-move validation, game-state tracking, and automated tests.

The interface sends each requested move to the chess engine, which determines whether the move is valid. Keeping the rules separate from the interface makes the program easier to test and maintain.

Implemented features

Core gameplay, rules, and state management.

Local two-player gameplay

Movement rules for every chess piece

Turn enforcement and captures

Check, checkmate, and stalemate detection

Castling, en passant, and pawn promotion

Undo, restart, and move history

Automated engine tests

Inside the project

Interface, logic, and game-state development.

Digital Chess game interface — 01 / Interface
The Java Swing interface displays the board, tracks turns, and sends each attempted move to the chess engine for validation.

Digital Chess movement logic shown in the code editor — 02 / Rules engine
Movement rules are kept separate from the interface so legal moves, captures, check states, and special rules can be tested independently.

Digital Chess automated test results — 03 / Testing
Automated tests verify movement, game-state transitions, special rules, and invalid actions before changes reach the interface.

Project files

Explore the source code.

The GitHub repository contains the Java source files, engine tests, launch scripts, architecture notes, and project documentation.

Open GitHub repository