-If an alternative score file is specified, that will be used instead of the
-standard file for scores.
+If an alternative score file is named on the command line, that file
+will be used instead of the standard file for scores.
+The score file must be created empty beforehand, e.g. with
+.Xr touch 1 .
+If the argument
+.Ar maximum ,
+which must be a number, is provided when a score file is first used,
+the value given will be used as the maximum number of scores to keep
+per user instead of the default five.
+This value is a property of the score file and cannot be changed later.