I built and deployed a complete chess platform where anyone can play against an AI in the browser. It includes a custom chess engine (minimax search with alpha-beta pruning, iterative deepening, and a transposition table), a PyTorch neural network trained on 58k positions, and a responsive web interface with drag-and-drop play, game clocks, undo, and three difficulty levels. After each game, players get a chess.com-style review with move-by-move grading (Best, Blunder, and so on), an eval graph, accuracy scores, and a board that steps through the game. The site also has a live leaderboard too