- Added solutions by Lubos Kolouch.

- Added solutions by Adam Russell.
- Added solutions by Robert Ransbottom.
- Added solutions by Simon Green.
- Added blog post by Roger Bell_West.
- Added solutions by Wanderdoc.

20 files changed, 4453 insertions, 4302 deletions

diff --git a/stats/pwc-challenge-001.json b/stats/pwc-challenge-001.json
index e5aae6ead0..3e236e8ace 100644
--- a/stats/pwc-challenge-001.json
+++ b/stats/pwc-challenge-001.json
@@ -1,407 +1,22 @@
 {
-   "tooltip" : {
-      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
-      "followPointer" : 1,
-      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
-   },
-   "xAxis" : {
-      "type" : "category"
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
-      }
-   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
    },
-   "title" : {
-      "text" : "The Weekly Challenge - 001"
-   },
-   "series" : [
-      {
-         "colorByPoint" : 1,
-         "name" : "The Weekly Challenge - 001",
-         "data" : [
-            {
-               "y" : 2,
-               "drilldown" : "Abigail",
-               "name" : "Abigail"
-            },
-            {
-               "y" : 3,
-               "drilldown" : "Adam Russell",
-               "name" : "Adam Russell"
-            },
-            {
-               "drilldown" : "Ailbhe Tweedie",
-               "name" : "Ailbhe Tweedie",
-               "y" : 1
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Alex Daniel",
-               "name" : "Alex Daniel"
-            },
-            {
-               "drilldown" : "Ali Moradi",
-               "name" : "Ali Moradi",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "name" : "Andrezgz",
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-               "name" : "Antonio Gamiz",
-               "drilldown" : "Antonio Gamiz",
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-               "drilldown" : "Arne Sommer",
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-               "drilldown" : "Arpad Toth",
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-               "drilldown" : "Athanasius"
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-               "drilldown" : "Bob Kleemann",
-               "name" : "Bob Kleemann",
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-               "drilldown" : "Bob Lied",
-               "name" : "Bob Lied",
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-               "drilldown" : "Daniel Mantovani",
-               "name" : "Daniel Mantovani"
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-               "drilldown" : "Dave Jacoby",
-               "name" : "Dave Jacoby"
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-               "name" : "Duncan C. White",
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-            {
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-               "name" : "Eddy HS",
-               "drilldown" : "Eddy HS"
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-               "y" : 2,
-               "drilldown" : "Finley",
-               "name" : "Finley"
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-               "drilldown" : "Fred Zinn",
-               "name" : "Fred Zinn"
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-               "drilldown" : "Freddie B",
-               "name" : "Freddie B",
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-            {
-               "drilldown" : "Gustavo Chaves",
-               "name" : "Gustavo Chaves",
-               "y" : 1
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-            {
-               "y" : 4,
-               "name" : "Jaldhar H. Vyas",
-               "drilldown" : "Jaldhar H. Vyas"
-            },
-            {
-               "y" : 4,
-               "name" : "James Smith",
-               "drilldown" : "James Smith"
-            },
-            {
-               "name" : "Jeff",
-               "drilldown" : "Jeff",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Jeremy Carman",
-               "name" : "Jeremy Carman"
-            },
-            {
-               "name" : "Jim Bacon",
-               "drilldown" : "Jim Bacon",
-               "y" : 1
-            },
-            {
-               "drilldown" : "JJ Merelo",
-               "name" : "JJ Merelo",
-               "y" : 2
-            },
-            {
-               "y" : 5,
-               "drilldown" : "Jo Christian Oterhals",
-               "name" : "Jo Christian Oterhals"
-            },
-            {
-               "y" : 6,
-               "name" : "Joelle Maslak",
-               "drilldown" : "Joelle Maslak"
-            },
-            {
-               "y" : 1,
-               "drilldown" : "John Barrett",
-               "name" : "John Barrett"
-            },
-            {
-               "drilldown" : "Jorg Sommrey",
-               "name" : "Jorg Sommrey",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Juan Caballero",
-               "name" : "Juan Caballero",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Khalid",
-               "name" : "Khalid"
-            },
-            {
-               "y" : 3,
-               "drilldown" : "Kian-Meng Ang",
-               "name" : "Kian-Meng Ang"
-            },
-            {
-               "y" : 2,
-               "name" : "Kivanc Yazan",
-               "drilldown" : "Kivanc Yazan"
-            },
-            {
-               "y" : 2,
-               "name" : "Lakpa Tashi Bhutia",
-               "drilldown" : "Lakpa Tashi Bhutia"
-            },
-            {
-               "y" : 4,
-               "name" : "Lars Balker",
-               "drilldown" : "Lars Balker"
-            },
-            {
-               "y" : 4,
-               "name" : "Laurent Rosenfeld",
-               "drilldown" : "Laurent Rosenfeld"
-            },
-            {
-               "y" : 3,
-               "drilldown" : "Lubos Kolouch",
-               "name" : "Lubos Kolouch"
-            },
-            {
-               "name" : "Mark Senn",
-               "drilldown" : "Mark Senn",
-               "y" : 2
-            },
-            {
-               "name" : "Martin Mugeni",
-               "drilldown" : "Martin Mugeni",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Max Kossek",
-               "name" : "Max Kossek",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Neil Bowers",
-               "name" : "Neil Bowers",
-               "y" : 1
-            },
-            {
-               "y" : 4,
-               "name" : "Nick Logan",
-               "drilldown" : "Nick Logan"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Oleksii Tsvietnov",
-               "name" : "Oleksii Tsvietnov"
-            },
-            {
-               "y" : 2,
-               "name" : "Ozzy",
-               "drilldown" : "Ozzy"
-            },
-            {
-               "name" : "Pablo Saavedra",
-               "drilldown" : "Pablo Saavedra",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "name" : "Paulo Custodio",
-               "drilldown" : "Paulo Custodio"
-            },
-            {
-               "drilldown" : "Pavel Jurca",
-               "name" : "Pavel Jurca",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "name" : "Pete Houston",
-               "drilldown" : "Pete Houston"
-            },
-            {
-               "name" : "Philippe Bruhat",
-               "drilldown" : "Philippe Bruhat",
-               "y" : 3
-            },
-            {
-               "name" : "Prajith P",
-               "drilldown" : "Prajith P",
-               "y" : 1
-            },
-            {
-               "drilldown" : "Ruben Westerberg",
-               "name" : "Ruben Westerberg",
-               "y" : 4
-            },
-            {
-               "y" : 4,
-               "name" : "Ryan Thompson",
-               "drilldown" : "Ryan Thompson"
-            },
-            {
-               "drilldown" : "Samir Parikh",
-               "name" : "Samir Parikh",
-               "y" : 1
-            },
-            {
-               "y" : 2,
-               "name" : "Sean Meininger",
-               "drilldown" : "Sean Meininger"
-            },
-            {
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor",
-               "y" : 7
-            },
-            {
-               "y" : 2,
-               "name" : "Simon Reinhardt",
-               "drilldown" : "Simon Reinhardt"
-            },
-            {
-               "y" : 4,
-               "drilldown" : "Steve Rogerson",
-               "name" : "Steve Rogerson"
-            },
-            {
-               "drilldown" : "Steven Wilson",
-               "name" : "Steven Wilson",
-               "y" : 2
-            },
-            {
-               "name" : "Stuart Little",
-               "drilldown" : "Stuart Little",
-               "y" : 2
-            },
-            {
-               "y" : 1,
-               "drilldown" : "Tiago Stock",
-               "name" : "Tiago Stock"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Tore Andersson",
-               "name" : "Tore Andersson"
-            },
-            {
-               "y" : 1,
-               "drilldown" : "Veesh Goldman",
-               "name" : "Veesh Goldman"
-            },
-            {
-               "drilldown" : "Vinod Kumar K",
-               "name" : "Vinod Kumar K",
-               "y" : 2
-            },
-            {
-               "y" : 1,
-               "drilldown" : "William Gilmore",
-               "name" : "William Gilmore"
-            },
-            {
-               "name" : "Yet Ebreo",
-               "drilldown" : "Yet Ebreo",
-               "y" : 4
-            }
-         ]
-      }
-   ],
-   "subtitle" : {
-      "text" : "[Champions: 70] Last updated at 2024-03-16 13:08:29 GMT"
-   },
    "drilldown" : {
       "series" : [
          {
             "id" : "Abigail",
-            "name" : "Abigail",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Abigail"
          },
          {
-            "name" : "Adam Russell",
             "data" : [
                [
                   "Perl",
@@ -412,41 +27,42 @@
                   1
                ]
             ],
-            "id" : "Adam Russell"
+            "id" : "Adam Russell",
+            "name" : "Adam Russell"
          },
          {
-            "id" : "Ailbhe Tweedie",
             "name" : "Ailbhe Tweedie",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ]
+            ],
+            "id" : "Ailbhe Tweedie"
          },
          {
+            "id" : "Alex Daniel",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Alex Daniel",
-            "id" : "Alex Daniel"
+            "name" : "Alex Daniel"
          },
          {
+            "name" : "Ali Moradi",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Ali Moradi",
             "id" : "Ali Moradi"
          },
          {
-            "id" : "Andrezgz",
             "name" : "Andrezgz",
+            "id" : "Andrezgz",
             "data" : [
                [
                   "Perl",
@@ -455,17 +71,16 @@
             ]
          },
          {
-            "id" : "Antonio Gamiz",
+            "name" : "Antonio Gamiz",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Antonio Gamiz"
+            "id" : "Antonio Gamiz"
          },
          {
-            "id" : "Arne Sommer",
             "data" : [
                [
                   "Perl",
@@ -480,61 +95,62 @@
                   1
                ]
             ],
+            "id" : "Arne Sommer",
             "name" : "Arne Sommer"
          },
          {
+            "id" : "Arpad Toth",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Arpad Toth",
-            "id" : "Arpad Toth"
+            "name" : "Arpad Toth"
          },
          {
-            "id" : "Athanasius",
             "name" : "Athanasius",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Athanasius"
          },
          {
-            "id" : "Bob Kleemann",
-            "name" : "Bob Kleemann",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Bob Kleemann",
+            "name" : "Bob Kleemann"
          },
          {
+            "name" : "Bob Lied",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Bob Lied",
             "id" : "Bob Lied"
          },
          {
+            "name" : "Daniel Mantovani",
+            "id" : "Daniel Mantovani",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ],
-            "name" : "Daniel Mantovani",
-            "id" : "Daniel Mantovani"
+            ]
          },
          {
-            "id" : "Dave Cross",
             "name" : "Dave Cross",
+            "id" : "Dave Cross",
             "data" : [
                [
                   "Perl",
@@ -547,7 +163,7 @@
             ]
          },
          {
-            "id" : "Dave Jacoby",
+            "name" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
@@ -558,36 +174,36 @@
                   1
                ]
             ],
-            "name" : "Dave Jacoby"
+            "id" : "Dave Jacoby"
          },
          {
+            "name" : "David Ferrone",
             "id" : "David Ferrone",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "name" : "David Ferrone"
+            ]
          },
          {
-            "id" : "David Kayal",
             "name" : "David Kayal",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "David Kayal"
          },
          {
-            "id" : "Doug Schrag",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
+            "id" : "Doug Schrag",
             "name" : "Doug Schrag"
          },
          {
@@ -601,23 +217,23 @@
             "id" : "Duncan C. White"
          },
          {
-            "id" : "Eddy HS",
+            "name" : "Eddy HS",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Eddy HS"
+            "id" : "Eddy HS"
          },
          {
+            "name" : "Finley",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Finley",
             "id" : "Finley"
          },
          {
@@ -631,27 +247,27 @@
             "name" : "Fred Zinn"
          },
          {
-            "id" : "Freddie B",
             "name" : "Freddie B",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Freddie B"
          },
          {
             "id" : "Gustavo Chaves",
-            "name" : "Gustavo Chaves",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ]
+            ],
+            "name" : "Gustavo Chaves"
          },
          {
-            "name" : "Jaldhar H. Vyas",
+            "id" : "Jaldhar H. Vyas",
             "data" : [
                [
                   "Perl",
@@ -662,10 +278,9 @@
                   2
                ]
             ],
-            "id" : "Jaldhar H. Vyas"
+            "name" : "Jaldhar H. Vyas"
          },
          {
-            "name" : "James Smith",
             "data" : [
                [
                   "Perl",
@@ -676,20 +291,22 @@
                   2
                ]
             ],
-            "id" : "James Smith"
+            "id" : "James Smith",
+            "name" : "James Smith"
          },
          {
-            "name" : "Jeff",
+            "id" : "Jeff",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Jeff"
+            "name" : "Jeff"
          },
          {
             "name" : "Jeremy Carman",
+            "id" : "Jeremy Carman",
             "data" : [
                [
                   "Perl",
@@ -699,12 +316,11 @@
                   "Raku",
                   1
                ]
-            ],
-            "id" : "Jeremy Carman"
+            ]
          },
          {
-            "id" : "Jim Bacon",
             "name" : "Jim Bacon",
+            "id" : "Jim Bacon",
             "data" : [
                [
                   "Perl",
@@ -727,8 +343,6 @@
             "id" : "JJ Merelo"
          },
          {
-            "id" : "Jo Christian Oterhals",
-            "name" : "Jo Christian Oterhals",
             "data" : [
                [
                   "Perl",
@@ -742,9 +356,12 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Jo Christian Oterhals",
+            "name" : "Jo Christian Oterhals"
          },
          {
+            "name" : "Joelle Maslak",
             "id" : "Joelle Maslak",
             "data" : [
                [
@@ -755,51 +372,49 @@
                   "Raku",
                   3
                ]
-            ],
-            "name" : "Joelle Maslak"
+            ]
          },
          {
+            "name" : "John Barrett",
             "id" : "John Barrett",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ],
-            "name" : "John Barrett"
+            ]
          },
          {
-            "name" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Jorg Sommrey"
+            "id" : "Jorg Sommrey",
+            "name" : "Jorg Sommrey"
          },
          {
-            "id" : "Juan Caballero",
             "name" : "Juan Caballero",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Juan Caballero"
          },
          {
+            "id" : "Khalid",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Khalid",
-            "id" : "Khalid"
+            "name" : "Khalid"
          },
          {
-            "id" : "Kian-Meng Ang",
             "data" : [
                [
                   "Perl",
@@ -810,29 +425,31 @@
                   1
                ]
             ],
+            "id" : "Kian-Meng Ang",
             "name" : "Kian-Meng Ang"
          },
          {
+            "name" : "Kivanc Yazan",
             "id" : "Kivanc Yazan",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "name" : "Kivanc Yazan"
+            ]
          },
          {
-            "id" : "Lakpa Tashi Bhutia",
             "name" : "Lakpa Tashi Bhutia",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Lakpa Tashi Bhutia"
          },
          {
+            "name" : "Lars Balker",
             "data" : [
                [
                   "Perl",
@@ -843,12 +460,10 @@
                   2
                ]
             ],
-            "name" : "Lars Balker",
             "id" : "Lars Balker"
          },
          {
             "id" : "Laurent Rosenfeld",
-            "name" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -862,10 +477,11 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Laurent Rosenfeld"
          },
          {
-            "id" : "Lubos Kolouch",
+            "name" : "Lubos Kolouch",
             "data" : [
                [
                   "Perl",
@@ -876,41 +492,41 @@
                   1
                ]
             ],
-            "name" : "Lubos Kolouch"
+            "id" : "Lubos Kolouch"
          },
          {
-            "id" : "Mark Senn",
+            "name" : "Mark Senn",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Mark Senn"
+            "id" : "Mark Senn"
          },
          {
-            "name" : "Martin Mugeni",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Martin Mugeni"
+            "id" : "Martin Mugeni",
+            "name" : "Martin Mugeni"
          },
          {
+            "id" : "Max Kossek",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Max Kossek",
-            "id" : "Max Kossek"
+            "name" : "Max Kossek"
          },
          {
-            "id" : "Neil Bowers",
             "name" : "Neil Bowers",
+            "id" : "Neil Bowers",
             "data" : [
                [
                   "Perl",
@@ -919,6 +535,7 @@
             ]
          },
          {
+            "name" : "Nick Logan",
             "data" : [
                [
                   "Perl",
@@ -929,7 +546,6 @@
                   2
                ]
             ],
-            "name" : "Nick Logan",
             "id" : "Nick Logan"
          },
          {
@@ -943,13 +559,13 @@
             "name" : "Oleksii Tsvietnov"
          },
          {
-            "id" : "Ozzy",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
+            "id" : "Ozzy",
             "name" : "Ozzy"
          },
          {
@@ -963,36 +579,37 @@
             "id" : "Pablo Saavedra"
          },
          {
-            "id" : "Paulo Custodio",
+            "name" : "Paulo Custodio",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Paulo Custodio"
+            "id" : "Paulo Custodio"
          },
          {
-            "name" : "Pavel Jurca",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Pavel Jurca"
+            "id" : "Pavel Jurca",
+            "name" : "Pavel Jurca"
          },
          {
-            "name" : "Pete Houston",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Pete Houston"
+            "id" : "Pete Houston",
+            "name" : "Pete Houston"
          },
          {
+            "name" : "Philippe Bruhat",
             "id" : "Philippe Bruhat",
             "data" : [
                [
@@ -1003,8 +620,7 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Philippe Bruhat"
+            ]
          },
          {
             "name" : "Prajith P",
@@ -1017,6 +633,17 @@
             "id" : "Prajith P"
          },
          {
+            "name" : "Robert Ransbottom",
+            "id" : "Robert Ransbottom",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ]
+         },
+         {
+            "name" : "Ruben Westerberg",
             "id" : "Ruben Westerberg",
             "data" : [
                [
@@ -1027,11 +654,10 @@
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Ruben Westerberg"
+            ]
          },
          {
-            "id" : "Ryan Thompson",
+            "name" : "Ryan Thompson",
             "data" : [
                [
                   "Perl",
@@ -1042,21 +668,21 @@
                   2
                ]
             ],
-            "name" : "Ryan Thompson"
+            "id" : "Ryan Thompson"
          },
          {