Problem
Realtime chess depends on every participant seeing the same legal position while analysis and persistence happen around the match.
FIG. 01ENGINEERING CASE STUDY
← ALL SYSTEMSSTATE / MOVE / SYNC
CHECKMATE
Real-Time Multiplayer Chess Platform
$cat summary.md
A realtime 1v1 chess system built around synchronized game state, analysis, and persistent play.
WebSocketsPostgreSQLPrismaReactTypeScriptStockfish
FIG. 01.1SYSTEM ARCHITECTURE
A MOVE, AS STATE.
01PLAYER MOVE
02WEBSOCKET EVENT
03SERVER STATE
04PERSISTENCE
05STOCKFISH EVALUATION
06OPPONENT UPDATE
0+MOVES
0+GAMES
0AI LEVELS
Realtime Flow
A player move becomes a WebSocket event, updates server state, persists, passes through Stockfish evaluation, and reaches the opponent.
Game State
Concurrent sessions maintain persistent game state for ongoing play and later review.
Stockfish Integration
The engine supports three difficulty levels, dynamic position evaluation, and best-move recommendations.
PGN / Opening Explorer
PGN ingestion feeds an opening explorer tree built from more than 8,000 moves across 300+ games.