I added a solution for Euler No. 149. Probably not the most idiomatic Perl 6 code. It runs very slowly on Rakudo, and much faster on Niecza. The Perl 5 version (here: https://bitbucket.org/shlomif/project-euler/src/4e8f95dee1328f9cf84593333fe377bdfd849960/project-euler/149?at=default ) is still faster.
Add a (very slow so far) solution for Euler #149.