! Copyright (c) 2012 Anonymous
-! See http://factorcode.org/license.txt for BSD license.
+! See https://factorcode.org/license.txt for BSD license.
USING: kernel sequences math math.combinatorics formatting io ;
IN: rosetta-code.n-queens
-! http://rosettacode.org/wiki/N-queens_problem
+! https://rosettacode.org/wiki/N-queens_problem
! Solve the eight queens puzzle. You can extend the problem to
! solve the puzzle with a board of side NxN.