Two-player chess, White first, without clocks. Castling, en passant and promotion to queen/rook/bishop/knight are supported. Self-check and castling through attacked squares are illegal. Checkmate wins; stalemate and insufficient material draw. This casual edition automatically draws on the third occurrence of a position or 50 moves each without pawn movement or capture, without a claim. Tournament clocks and referee procedures are not used. Resigning is allowed. Rules engine: chess.js 1.4.0, BSD-2-Clause.

Rooms expire 24 hours after the last action. Refresh to reconnect; leaving ends the current game.