On my Mac, while I listen to podcasts, I enjoy doing jigsaws from Kristanix Games:

Over 20,000 beautiful, HD photographs, in more than 400 different packs!

Get a new free puzzle daily!

New puzzle packs added regularly!

And for this, my graphics tablet makes a world of difference for moving pieces. With a recent update though the tablet stopped working.

I emailed support, received a friendly reply within a couple of hours, and now the problem's been fixed.

Quick, easy effective.

Screenshot from the reply: Oh, I am sorry for this trouble. I ordered a Wacom tablet now, which I hope I get on Monday. I'm pretty sure I know what the issue is and how to fix it, but I want to make sure it works first so I want to test it on the Wacom once I get it.

If you're into Jigsaws, Mahjong, Sudoku, Solitaire or WordSearch, I totally recommend these.