- Added solutions by Jaldhar H. Vyas.

- Added solutions by Richard Loveland.

25 files changed, 2558 insertions, 2523 deletions

diff --git a/challenge-279/richard-loveland/README b/challenge-279/richard-loveland/README
new file mode 100644
index 0000000000..56e5a67ce7
--- /dev/null
+++ b/challenge-279/richard-loveland/README
@@ -0,0 +1 @@
+Solutions by Richard Loveland.
diff --git a/challenge-279/richard-loveland/k/ch-1.k b/challenge-279/richard-loveland/k/ch-1.k
new file mode 100644
index 0000000000..496b500fa1
--- /dev/null
+++ b/challenge-279/richard-loveland/k/ch-1.k
@@ -0,0 +1,8 @@
+"perl"@<3 2 1 4-1
+
+"aurk"@<2 4 1 3-1
+
+"ohynpt"@<5 4 2 6 1 3-1
+
+f:{x@<y-1}
+ f["ohynpt";5 4 2 6 1 3]
diff --git a/challenge-279/richard-loveland/k/ch-2.k b/challenge-279/richard-loveland/k/ch-2.k
new file mode 100644
index 0000000000..84d0dd4ebf
--- /dev/null
+++ b/challenge-279/richard-loveland/k/ch-2.k
@@ -0,0 +1,2 @@
+ / map a lambda over each given input
+ ~2!{+/~("aeiou"?x)=0N}'("perl";"book";"good morning")
diff --git a/guests.json b/guests.json
index 0697c0ef17..5887d2baaf 100644
--- a/guests.json
+++ b/guests.json
@@ -20,6 +20,7 @@
     "pieviero"        : "Tymoteusz Moryto",
     "probablyfine"    : "Alex Wilson",
     "geekruthie"      : "Ruth Holloway",
+    "richard-loveland": "Richard Loveland",
     "shawak"          : "Shawak",
     "simon-dueck"     : "Simon Dueck",
     "szabgab"         : "Gabor Szabo",
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 46840df852..069899ac1f 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,54 +1,49 @@
 {
-   "xAxis" : {
-      "type" : "category"
+   "legend" : {
+      "enabled" : 0
    },
    "subtitle" : {
-      "text" : "[Champions: 20] Last updated at 2024-07-24 16:51:11 GMT"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "title" : {
-      "text" : "The Weekly Challenge - 279"
+      "text" : "[Champions: 21] Last updated at 2024-07-25 09:04:06 GMT"
    },
    "series" : [
       {
          "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 279",
          "data" : [
             {
-               "y" : 5,
+               "name" : "Ali Moradi",
                "drilldown" : "Ali Moradi",
-               "name" : "Ali Moradi"
+               "y" : 5
             },
             {
                "name" : "Andrezgz",
-               "drilldown" : "Andrezgz",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "Andrezgz"
             },
             {
-               "drilldown" : "Athanasius",
                "y" : 4,
+               "drilldown" : "Athanasius",
                "name" : "Athanasius"
             },
             {
-               "name" : "David Ferrone",
+               "y" : 2,
                "drilldown" : "David Ferrone",
-               "y" : 2
+               "name" : "David Ferrone"
             },
             {
+               "name" : "E. Choroba",
                "drilldown" : "E. Choroba",
-               "y" : 2,
-               "name" : "E. Choroba"
+               "y" : 2
             },
             {
+               "name" : "Feng Chang",
                "y" : 2,
-               "drilldown" : "Feng Chang",
-               "name" : "Feng Chang"
+               "drilldown" : "Feng Chang"
+            },
+            {
+               "name" : "Jaldhar H. Vyas",
+               "drilldown" : "Jaldhar H. Vyas",
+               "y" : 5
             },
             {
                "drilldown" : "Kjetil Skotheim",
@@ -61,9 +56,9 @@
                "name" : "Laurent Rosenfeld"
             },
             {
-               "name" : "Mark Anderson",
                "y" : 2,
-               "drilldown" : "Mark Anderson"
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson"
             },
             {
                "drilldown" : "Matthew Neleigh",
@@ -72,8 +67,8 @@
             },
             {
                "name" : "Niels van Dijke",
-               "drilldown" : "Niels van Dijke",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "Niels van Dijke"
             },
             {
                "name" : "Packy Anderson",
@@ -81,24 +76,24 @@
                "y" : 5
             },
             {
+               "name" : "Peter Campbell Smith",
                "y" : 3,
-               "drilldown" : "Peter Campbell Smith",
-               "name" : "Peter Campbell Smith"
+               "drilldown" : "Peter Campbell Smith"
             },
             {
-               "drilldown" : "Peter Meszaros",
                "y" : 2,
+               "drilldown" : "Peter Meszaros",
                "name" : "Peter Meszaros"
             },
             {
-               "drilldown" : "Reinier Maliepaard",
                "y" : 3,
+               "drilldown" : "Reinier Maliepaard",
                "name" : "Reinier Maliepaard"
             },
             {
-               "name" : "Robbie Hatley",
+               "drilldown" : "Robbie Hatley",
                "y" : 3,
-               "drilldown" : "Robbie Hatley"
+               "name" : "Robbie Hatley"
             },
             {
                "y" : 4,
@@ -106,29 +101,23 @@
                "name" : "Roger Bell_West"
             },
             {
-               "name" : "Thomas Kohler",
+               "drilldown" : "Thomas Kohler",
                "y" : 4,
-               "drilldown" : "Thomas Kohler"
+               "name" : "Thomas Kohler"
             },
             {
-               "y" : 4,
+               "name" : "Ulrich Rieke",
                "drilldown" : "Ulrich Rieke",
-               "name" : "Ulrich Rieke"
+               "y" : 4
             },
             {
                "name" : "W. Luis Mochan",
-               "y" : 3,
-               "drilldown" : "W. Luis Mochan"
+               "drilldown" : "W. Luis Mochan",
+               "y" : 3
             }
-         ],
-         "name" : "The Weekly Challenge - 279"
+         ]
       }
    ],
-   "tooltip" : {
-      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
-      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
-      "followPointer" : 1
-   },
    "drilldown" : {
       "series" : [
          {
@@ -150,13 +139,13 @@
             "name" : "Ali Moradi"
          },
          {
+            "id" : "Andrezgz",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Andrezgz",
             "name" : "Andrezgz"
          },
          {
@@ -184,37 +173,55 @@
             "name" : "David Ferrone"
          },
          {
-            "name" : "E. Choroba",
+            "id" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "E. Choroba"
+            "name" : "E. Choroba"
          },
          {
+            "id" : "Feng Chang",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Feng Chang",
             "name" : "Feng Chang"
          },
          {
+            "name" : "Jaldhar H. Vyas",
             "data" : [
                [
                   "Perl",
                   2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
                ]
             ],
+            "id" : "Jaldhar H. Vyas"
+         },
+         {
             "name" : "Kjetil Skotheim",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
             "id" : "Kjetil Skotheim"
          },
          {
-            "name" : "Laurent Rosenfeld",
+            "id" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -229,17 +236,17 @@
                   1
                ]
             ],
-            "id" : "Laurent Rosenfeld"
+            "name" : "Laurent Rosenfeld"
          },
          {
-            "id" : "Mark Anderson",
+            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Mark Anderson"
+            "id" : "Mark Anderson"
          },
          {
             "name" : "Matthew Neleigh",
@@ -252,14 +259,14 @@
             "id" : "Matthew Neleigh"
          },
          {
-            "id" : "Niels van Dijke",
+            "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Niels van Dijke"
+            "id" : "Niels van Dijke"
          },
          {
             "name" : "Packy Anderson",
@@ -280,6 +287,7 @@
             "id" : "Packy Anderson"
          },
          {
+            "name" : "Peter Campbell Smith",
             "data" : [
                [
                   "Perl",
@@ -290,20 +298,20 @@
                   1
                ]
             ],
-            "id" : "Peter Campbell Smith",
-            "name" : "Peter Campbell Smith"
+            "id" : "Peter Campbell Smith"
          },
          {
-            "id" : "Peter Meszaros",
+            "name" : "Peter Meszaros",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Peter Meszaros"
+            "id" : "Peter Meszaros"
          },
          {
+            "id" : "Reinier Maliepaard",
             "data" : [
                [
                   "Perl",
@@ -314,11 +322,9 @@
                   1
                ]
             ],
-            "id" : "Reinier Maliepaard",
             "name" : "Reinier Maliepaard"
          },
          {
-            "id" : "Robbie Hatley",
             "data" : [
                [
                   "Perl",
@@ -329,9 +335,11 @@
                   1
                ]
             ],
-            "name" : "Robbie Hatley"
+            "name" : "Robbie Hatley",
+            "id" : "Robbie Hatley"
          },
          {
+            "name" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -342,8 +350,7 @@
                   2
                ]
             ],
-            "id" : "Roger Bell_West",
-            "name" : "Roger Bell_West"
+            "id" : "Roger Bell_West"
          },
          {
             "name" : "Thomas Kohler",
@@ -360,7 +367,6 @@
             "id" : "Thomas Kohler"
          },
          {
-            "id" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -371,9 +377,11 @@
                   2
                ]
             ],
-            "name" : "Ulrich Rieke"
+            "name" : "Ulrich Rieke",
+            "id" : "Ulrich Rieke"
          },
          {
+            "id" : "W. Luis Mochan",
             "name" : "W. Luis Mochan",
             "data" : [
                [
@@ -384,21 +392,36 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "W. Luis Mochan"
+            ]
          }
       ]
    },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "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/>"
+   },
    "plotOptions" : {
       "series" : {
          "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
+            "enabled" : 1,
+            "format" : "{point.y}"
          },
          "borderWidth" : 0
       }
    },
-   "legend" : {
-      "enabled" : 0
+   "chart" : {
+      "type" : "column"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge - 279"
    }
 }
diff --git a/stats/pwc-language-breakdown-2019.json b/stats/pwc-language-breakdown-2019.json
index 3f3fb8b5bd..cabbc06163 100644
--- a/stats/pwc-language-breakdown-2019.json
+++ b/stats/pwc-language-breakdown-2019.json
@@ -1,18 +1,18 @@
 {
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2024-07-25 09:04:06 GMT"
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
    "xAxis" : {
       "type" : "category"
    },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2024-07-24 16:51:11 GMT"
-   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
    },
-   "chart" : {
-      "type" : "column"
-   },
    "tooltip" : {
       "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
       "followPointer" : "true",
@@ -20,7 +20,6 @@
    },
    "series" : [
       {
-         "colorByPoint" : "true",
          "data" : [
             {
                "drilldown" : "001",
@@ -28,14 +27,14 @@
                "name" : "#001"
             },
             {
+               "name" : "#002",
                "y" : 133,
-               "drilldown" : "002",
-               "name" : "#002"
+               "drilldown" : "002"
             },
             {
+               "name" : "#003",
                "drilldown" : "003",
-               "y" : 91,
-               "name" : "#003"
+               "y" : 91
             },
             {
                "drilldown" : "004",
@@ -43,13 +42,13 @@
                "name" : "#004"
             },
             {
-               "name" : "#005",
                "y" : 82,
-               "drilldown" : "005"
+               "drilldown" : "005",
+               "name" : "#005"
             },
             {
-               "drilldown" : "006",
                "y" : 63,
+               "drilldown" : "006",
                "name" : "#006"
             },
             {
@@ -58,29 +57,29 @@
                "drilldown" : "007"
             },
             {
-               "y" : 82,
                "drilldown" : "008",
+               "y" : 82,
                "name" : "#008"
             },
             {
-               "drilldown" : "009",
                "y" : 79,
+               "drilldown" : "009",
                "name" : "#009"
             },
             {
-               "drilldown" : "010",
                "y" : 69,
+               "drilldown" : "010",
                "name" : "#010"
             },
             {
-               "name" : "#011",
+               "drilldown" : "011",
                "y" : 86,
-               "drilldown" : "011"
+               "name" : "#011"
             },
             {
-               "name" : "#012",
                "y" : 90,
-               "drilldown" : "012"
+               "drilldown" : "012",
+               "name" : "#012"
             },
             {
                "drilldown" : "013",
@@ -88,49 +87,49 @@
                "name" : "#013"
             },
             {
-               "name" : "#014",
+               "drilldown" : "014",
                "y" : 98,
-               "drilldown" : "014"
+               "name" : "#014"
             },
             {
                "name" : "#015",
-               "y" : 95,
-               "drilldown" : "015"
+               "drilldown" : "015",
+               "y" : 95
             },
             {
                "name" : "#016",
-               "y" : 75,
-               "drilldown" : "016"
+               "drilldown" : "016",
+               "y" : 75
             },
             {
-               "y" : 83,
                "drilldown" : "017",
+               "y" : 83,
                "name" : "#017"
             },
             {
-               "name" : "#018",
                "drilldown" : "018",
-               "y" : 82
+               "y" : 82,
+               "name" : "#018"
             },
             {
-               "name" : "#019",
+               "drilldown" : "019",
                "y" : 101,
-               "drilldown" : "019"
+               "name" : "#019"
             },
             {
+               "name" : "#020",
                "drilldown" : "020",
-               "y" : 100,
-               "name" : "#020"
+               "y" : 100
             },
             {
-               "drilldown" : "021",
+               "name" : "#021",
                "y" : 72,
-               "name" : "#021"
+               "drilldown" : "021"
             },
             {
+               "name" : "#022",
                "drilldown" : "022",
-               "y" : 72,
-               "name" : "#022"
+               "y" : 72
             },
             {
                "y" : 88,
@@ -139,8 +138,8 @@
             },
             {
                "name" : "#024",
-               "y" : 77,
-               "drilldown" : "024"
+               "drilldown" : "024",
+               "y" : 77
             },
             {
                "name" : "#025",
@@ -148,19 +147,19 @@
                "y" : 62
             },
             {
-               "drilldown" : "026",
                "y" : 75,
+               "drilldown" : "026",
                "name" : "#026"
             },
             {
-               "y" : 64,
+               "name" : "#027",
                "drilldown" : "027",
-               "name" : "#027"
+               "y" : 64
             },
             {
-               "name" : "#028",
+               "y" : 82,
                "drilldown" : "028",
-               "y" : 82
+               "name" : "#028"
             },
             {
                "name" : "#029",
@@ -168,29 +167,29 @@
                "y" : 83
             },
             {
-               "name" : "#030",
                "drilldown" : "030",
-               "y" : 120
+               "y" : 120,
+               "name" : "#030"
             },
             {
                "name" : "#031",
-               "y" : 93,
-               "drilldown" : "031"
+               "drilldown" : "031",
+               "y" : 93
             },
             {
-               "name" : "#032",
+               "y" : 97,
                "drilldown" : "032",
-               "y" : 97
+               "name" : "#032"
             },
             {
-               "drilldown" : "033",
+               "name" : "#033",
                "y" : 113,
-               "name" : "#033"
+               "drilldown" : "033"
             },
             {
-               "name" : "#034",
+               "drilldown" : "034",
                "y" : 70,
-               "drilldown" : "034"
+               "name" : "#034"
             },
             {
                "name" : "#035",
@@ -198,45 +197,44 @@
                "drilldown" : "035"
             },
             {
-               "drilldown" : "036",
+               "name" : "#036",
                "y" : 70,
-               "name" : "#036"
+               "drilldown" : "036"
             },
             {
                "name" : "#037",
-               "drilldown" : "037",
-               "y" : 70
+               "y" : 70,
+               "drilldown" : "037"
             },
             {
-               "y" : 74,
                "drilldown" : "038",
+               "y" : 74,
                "name" : "#038"
             },
             {
-               "drilldown" : "039",
                "y" : 68,
+               "drilldown" : "039",
                "name" : "#039"
             },
             {
+               "name" : "#040",
                "drilldown" : "040",
-               "y" : 77,
-               "name" : "#040"
+               "y" : 77
             },
             {
-               "name" : "#041",
                "y" : 80,
-               "drilldown" : "041"
+               "drilldown" : "041",
+               "name" : "#041"
             }
          ],
-         "name" : "The Weekly Challenge Languages"
+         "name" : "The Weekly Challenge Languages",
+         "colorByPoint" : "true"
       }
    ],
-   "title" : {
-      "text" : "The Weekly Challenge Language"
-   },
    "drilldown" : {
       "series" : [
          {
+            "id" : "001",
             "name" : "001",
             "data" : [
                [
@@ -251,10 +249,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "001"
+            ]
          },
          {
+            "id" : "002",
+            "name" : "002",
             "data" : [
                [
                   "Perl",
@@ -268,9 +267,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "002",
-            "name" : "002"
+            ]
          },
          {
             "data" : [
@@ -309,6 +306,7 @@
             "name" : "004"
          },
          {
+            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -323,8 +321,7 @@
                   12
                ]
             ],
-            "name" : "005",
-            "id" : "005"
+            "name" : "005"
          },
          {
             "id" : "006",
@@ -345,6 +342,7 @@
             "name" : "006"
          },
          {
+            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -359,10 +357,10 @@
                   10
                ]
             ],
-            "name" : "007",
             "id" : "007"
          },
          {
+            "name" : "008",
             "data" : [
                [
                   "Perl",
@@ -377,11 +375,10 @@
                   12
                ]
             ],
-            "name" : "008",
             "id" : "008"
          },
          {
-            "name" : "009",
+            "id" : "009",
             "data" : [
                [
                   "Perl",
@@ -396,7 +393,7 @@
                   13
                ]
             ],
-            "id" : "009"
+            "name" : "009"
          },
          {
             "id" : "010",
@@ -417,6 +414,7 @@
             "name" : "010"
          },
          {
+            "id" : "011",
             "data" : [
                [
                   "Perl",
@@ -431,10 +429,10 @@
                   10
                ]
             ],
-            "name" : "011",
-            "id" : "011"
+            "name" : "011"
          },
          {
+            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -449,10 +447,10 @@
                   11
                ]
             ],
-            "id" : "012",
-            "name" : "012"
+            "id" : "012"
          },
          {
+            "id" : "013",
             "name" : "013",
             "data" : [
                [
@@ -467,11 +465,9 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "013"
+            ]
          },
          {
-            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -486,9 +482,11 @@
                   15
                ]
             ],
+            "name" : "014",
             "id" : "014"
          },
          {
+            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -503,11 +501,9 @@
                   15
                ]
             ],
-            "id" : "015",
-            "name" : "015"
+            "id" : "015"
          },
          {
-            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -522,9 +518,11 @@
                   13
                ]
             ],
-            "name" : "016"
+            "name" : "016",
+            "id" : "016"
          },
          {
+            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -539,11 +537,11 @@
                   12
                ]
             ],
-            "id" : "017",
             "name" : "017"
          },
          {
             "id" : "018",
+            "name" : "018",
             "data" : [
                [
                   "Perl",
@@ -557,8 +555,7 @@
                   "Blog",
                   14
                ]
-            ],
-            "name" : "018"
+            ]
          },
          {
             "name" : "019",
@@ -597,6 +594,7 @@
             "id" : "020"
          },
          {
+            "id" : "021",
             "name" : "021",
             "data" : [
                [
@@ -611,8 +609,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "021"
+            ]
          },
          {
             "data" : [
@@ -629,11 +626,10 @@
                   10
                ]
             ],
-            "id" : "022",
-            "name" : "022"
+            "name" : "022",
+            "id" : "022"