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diff --git a/challenge-219/robbie-hatley/blog.txt b/challenge-219/robbie-hatley/blog.txt
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+https://hatley-software.blogspot.com/2023/06/robbie-hatleys-solutions-to-weekly.html
+\ No newline at end of file
diff --git a/challenge-219/robbie-hatley/perl/ch-1.pl b/challenge-219/robbie-hatley/perl/ch-1.pl
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+#! /bin/perl -CSDA
+
+=pod
+
+--------------------------------------------------------------------------------------------------------------
+COLOPHON:
+This is a 110-character-wide Unicode UTF-8 Perl-source-code text file with hard Unix line breaks ("\x0A").
+¡Hablo Español! Говорю Русский. Björt skjöldur. ॐ नमो भगवते वासुदेवाय. 看的星星，知道你是爱。麦藁雪、富士川町、山梨県。
+
+--------------------------------------------------------------------------------------------------------------
+TITLE BLOCK:
+ch-1.pl
+Solutions in Perl for The Weekly Challenge 219-1.
+Written by Robbie Hatley on Fri Jun 02, 2023.
+
+--------------------------------------------------------------------------------------------------------------
+PROBLEM DESCRIPTION:
+Task 1: Sorted Squares
+Submitted by: Mohammad S Anwar
+Given a list of numbers, write a script to square each number in the list and return the sorted list of
+squares in increasing order.
+Example 1:  Input: (-2, -1, 0, 3, 4)  Output: (0, 1, 4, 9, 16)
+Example 2:  Input: (5, -4, -1, 3, 6)  Output: (1, 9, 16, 25, 36)
+
+--------------------------------------------------------------------------------------------------------------
+PROBLEM NOTES:
+Easy; just do 'for my $aref (@arrays) {my squares = sort {$a<=>$b} map {$_*$_} @$aref; say "(@squares)";}'
+
+--------------------------------------------------------------------------------------------------------------
+IO NOTES:
+Input is via either built-in variables or via @ARGV. If using @ARGV, provide one argument which must be a
+single-quoted array of arrays in proper Perl syntax, like so:
+./ch-1.pl '([13.2,0,-96.3],[-8.1,3.7,11.92],[2,-6.03,4.371])'
+
+Output is to STDOUT and will be each input array followed by the corresponding sorted list of squares.
+
+=cut
+
+# ------------------------------------------------------------------------------------------------------------
+# PRELIMINARIES:
+use v5.36;
+use strict;
+use warnings;
+use utf8;
+use Sys::Binmode;
+use Time::HiRes 'time';
+$"=', ';
+
+# ------------------------------------------------------------------------------------------------------------
+# DEFAULT INPUTS:
+my @arrays =
+(
+   [-2, -1, 0, 3, 4],
+   [5, -4, -1, 3, 6],
+);
+
+# ------------------------------------------------------------------------------------------------------------
+# NON-DEFAULT INPUTS:
+if (@ARGV) {@arrays = eval($ARGV[0]);}
+
+# ------------------------------------------------------------------------------------------------------------
+# MAIN BODY OF PROGRAM:
+my $t0 = time;
+for my $aref (@arrays) {
+   my @squares = sort {$a<=>$b} map {$_*$_} @$aref;
+   say '';
+   say "array   = (@$aref)";
+   say "squares = (@squares)";
+}
+my $µs = 1000000 * (time - $t0);
+printf("\nExecution time was %.3fµs.\n", $µs);
+exit 0;