Chess variants
Unrated practice with a local casual bot or two players sharing this board.
White to move
Chess960: bishops start on opposite colours and the king starts between the rooks. Castle by selecting the king, then its rook. Layout indices are ChessNexa’s ordering.
King of the Hill: bring your king to d4, e4, d5 or e5, or checkmate.
Three-check: deliver three checks, or checkmate. The extra FEN counters track remaining checks.
Rules powered by chessops. Variant results do not change your standard rating.