Peter's Jigsaws
You have two choices here :

play right now online (24, 48, 96 or 192 pieces) or, if you have a Mac or a Windows PC, download my very popular 300 piece jigsaw program.
Oz Jigsaw (2018)
I was determined to have my jigsaws on the web but it turns out this is very difficult. So far this is my only success and it is only possible because the pieces are just a single colour.
Octagon Jigsaw (2021)
This is one of the puzzles from my popular game, 'Magnetic' and reveals my love of tessellations!