Before Hal, you had to solve the CG with pen, yes pen, and paper.
I think it’s still the best way, to it esp if you’re at work. You simply copy and print out the CG, and then do it on paper.
But when you’re in bed on your Ipad or Mac etc. Hal is oh so convenient.
PS-would you like to get on our PING list? :-)
I’d very much appreciate being on the ping list.
I’ll tell you this though; when I used to shun HAL I would solve the puzzle entirely in my head remembering what each letter stood for and writing nothing down. Now that used to be a mental workout!
Then, I tried HAL and it felt like I was cheating.