Assimilation Chess

Assimilation Chess is a chess variant built on familiar chess movement, check, checkmate, castling, en passant, and promotion rules. The twist is that every non-king capture transforms the attacker into the captured piece type while keeping its original color. A pawn that captures a queen becomes a queen. A queen that captures a pawn becomes a pawn. A knight that captures a rook becomes a rook. Kings still capture as kings. Play local pass-and-play, learn the transformation rule in the tutorial, test tactics against legal-move bots, and take games online with server-validated moves. Casual and ranked ratings are separate, ranked games require an account, and bot games do not affect player ratings. Features: - Standard chess foundation with capture transformation. - Tutorial lessons for the new rules. - Local pass-and-play. - Solo bot play. - Private games, casual matchmaking, and ranked play. - Ranked leaderboard, match history, and replay support.