Ironic that you’re touting these puzzles as useful interviewing techniques while also admitting that ChatGPT can solve them just fine.
If you’re hiring software engineers by asking them questions that are best answered by AI, you’re living in the past.
That was because the parent complained about not having good write ups. You can use GPT which has already been trained on publicly available solutions to generate a very good explanation. Like a coaching buddy. Keeping in mind there are paid solutions that charge 15k USD for this type of thing, being able to upskill at just 20bucks a month is an absolute steal.