-Solves the N-Queens problem (where, in this program, N is between 5 and
-10 queens.) The problem is: how may one place N queens on an NxN
-chessboard such that no queen can attack a sister?
-Written by Blair Tennessy.
+The N-Queens problem: how to place N queens on an NxN chessboard
+such that no queen can attack a sister?
+
+See also the "Endgame" screen saver.
+
+http://en.wikipedia.org/wiki/Eight_queens_puzzle
+
+Written by Blair Tennessy; 2002.