Is there any other notation system other than algebraic notation? 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.
Other than the algebraic nomenclature:
Two off the top of my head are
Correspondence chess used 1:1 to 8:8 to label the squares.
Descriptive notation predated algebraic: 1. P-K4 P-K4 2. KN-B3 QN-B3 and so on.