Other than the current coordinate notations used in chess, are there any other notations that anybody knows about? I am looking for anything that does not employ the coordinate system like naming all squares or any other sharp ideas.
Older players such as myself (I'm 83) learned with descriptive notation. Descriptive notation names the files based upon the piece standing originally on the 1st rank square, e.g. the QB file for what is the "c" file in Algebraic and the Q file for the Algebraic "d" file.
I preferred it to Algebraic, which became popular later on, since I found it easier to record the moves during a game or to follow the written moves on a scoresheet or in a magazine or book without a board. It is, as the name implies, more descriptive of the move. The downside was that you had to count from both sides of the board, e.g. my KB3 as White was Black's KB6 and vice versa, i.e. Black's KB3 was White's KB6, etc.