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Task/ABC-Problem/Perl-6/abc-problem.pl6

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+multi can-spell-word(Str $word, @blocks) {
+    my @regex = @blocks.map({ EVAL "/{.comb.join('|')}/" }).grep: { .ACCEPTS($word.uc) }
+    can-spell-word $word.uc.comb, @regex;
+}
+
+multi can-spell-word([$head,*@tail], @regex) {
+    for @regex -> $re {
+        if $head ~~ $re {
+            return True unless @tail;
+            return False if @regex == 1;
+            return True if can-spell-word @tail, @regex.grep: * !=== $re;
+        }
+    }
+    False;
+}
+
+my @b = <BO XK DQ CP NA GT RE TG QD FS JW HU VI AN OB ER FS LY PC ZM>;
+
+for <A BaRK BOoK tREaT COmMOn SqUAD CoNfuSE> {
+    say "$_     &can-spell-word($_, @b)";
+}