common way to refer to specific places on chessboard is by marking each row and column with letters and numbers figure - is chessboard that has each row and each column marked coordinate for space on the chessboard is combination of row and column in chessthe knight piece looks like horse head the white knight in figure - is located at the point and the black knight is located at point this labeled chessboard is cartesian coordinate system by using row label and column labelyou can give coordinate that is for one and only one space on the board if you've learned about cartesian coordinate systems in math classyou may know that numbers are used for both the rows and columns that chessboard would look like figure - figure - the same chessboard but with numeric coordinates for both rows and columns the numbers going left and right along the columns are part of the -axis the numbers going up and down along the rows are part of the -axis coordinates are always described with the xcoordinate firstfollowed by the -coordinate in figure - the white knight is located at the coordinate and not the black knight is located at the coordinate which is not to be confused with notice that for the black knight to move to the white knight' positionthe black knight must move up two spaces and to the right by four spaces but you don' need to look at the board to figure this out if you know the white knight is located at and the black knight is located at then you can use subtraction to figure out this information post questions to