2 files changed, 61 insertions, 0 deletions
diff --git a/challenge-266/wambash/raku/ch-1.raku b/challenge-266/wambash/raku/ch-1.raku
new file mode 100644
index 0000000000..450372d232
--- /dev/null
+++ b/challenge-266/wambash/raku/ch-1.raku
@@ -0,0 +1,20 @@
+#!/usr/bin/env raku
+
+sub uncommon-words (+lines) {
+    lines
+    andthen .words
+    andthen .Bag
+    andthen .nodemap: * == 1
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    cmp-ok uncommon-words('Mango is sweet', 'Mango is sour'), &[≡],('sweet','sour');
+    cmp-ok uncommon-words('Mango is Mango', 'Orange is Orange'), &[≡], Empty;
+    cmp-ok uncommon-words('Mango Mango', 'Orange'), &[≡], ('Orange');
+    done-testing;
+}
+
+multi MAIN (+lines) {
+    put uncommon-words lines
+}
diff --git a/challenge-266/wambash/raku/ch-2.raku b/challenge-266/wambash/raku/ch-2.raku
new file mode 100644
index 0000000000..0e281291af
--- /dev/null
+++ b/challenge-266/wambash/raku/ch-2.raku
@@ -0,0 +1,41 @@
+#!/usr/bin/env raku
+
+sub x-matrix (+matrix) {
+    my $n = matrix.elems;
+    my @x-index = ( (^$n Z=> ^$n) Z, (^$n Z=> reverse ^$n) andthen .map: { set |$_  } );
+
+    matrix
+    andthen .pairs
+    andthen .map: { set  .key «=>« |.value.grep: * !== 0,:k }\
+    andthen $_ Z≡ @x-index
+    andthen .all
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+
+    is x-matrix(
+        [1, 0, 0, 2],
+        [0, 3, 4, 0],
+        [0, 5, 6, 0],
+        [7, 0, 0, 1],
+    ), True;
+
+    is x-matrix(
+        [1, 2, 3],
+        [4, 5, 6],
+        [7, 8, 9],
+    ), False;
+
+    is x-matrix(
+        [1, 0, 2],
+        [0, 3, 0],
+        [4, 0, 5],
+    ), True;
+
+    done-testing;
+}
+
+multi MAIN (+matrix) {
+    say ?x-matrix matrix.map: *.comb: /\d+/
+}