Chess Game

Overview

A complete chess game in the browser — legal move validation, check and checkmate detection, and a clean separation between game engine and UI.

The approach

Modeled the game state as pure logic, fully separated from rendering: the engine validates moves, tracks threats and detects endgames, while the UI layer only reflects state. No frameworks — just disciplined vanilla JavaScript.

Highlights

• Full rules engine: legal moves, check, checkmate, castling
• Clean separation between game logic and rendering
• Zero dependencies — pure JavaScript architecture