Add Simon Tatham's Puzzle Collection
user
```ruby
class Puzzles < Cask
  url 'http://www.chiark.greenend.org.uk/~sgtatham/puzzles/Puzzles.dmg'
  homepage 'http://www.chiark.greenend.org.uk/~sgtatham/puzzles/'
  version 'latest'
  sha256 :no_check
  link 'Puzzles.app'
end
```
assistant