XO

Overview

Real-time multiplayer Tic-Tac-Toe built in a 4-person team: a thread-per-client server architecture handling live matchmaking and SHA-256-secured accounts over Apache Derby storage, plus a Minimax-powered AI opponent that evaluates every possible move.

Core capabilities

• Thread-per-client server for live matchmaking
• SHA-256-secured accounts over Apache Derby storage
• Minimax-powered "unbeatable" AI opponent
• Full JSON-based match replays for move-by-move review

Architecture

A thread-per-client Java server handles matchmaking and game state, with accounts secured via SHA-256 hashing over Apache Derby storage. The client speaks to it over sockets and falls back to a local Minimax engine for single-player matches, with every move logged to JSON for full match replay.

Project facts

Role

Team of 4

Context

ITI · 2026

Platform

Java Desktop