Hi Product Hunt! I'm Constantine, and I make SPC World. The idea is simple: one jigsaw a day, the same artwork for everyone, released at 00:00 UTC. You pick the size: Quick at 9 pieces, Standard at 25, or Expert at 49 (Expert is not offered on phones). Each size has its own daily leaderboard, so a time is only ever compared with times on the same grid. A few things we cared about: - Every image is public domain or openly licensed, and each one has a gallery page naming the museum or library it came from and the licence it rests on. - Pieces rotate as well as move, so even 9 pieces takes a little thought. - It runs in the browser. No download, no account, no ads, nothing to buy, and no prizes. The leaderboard is only there to compare times. - Missed a day? Every past puzzle stays playable at its own address in the archive. I'd love to hear which size you picked, and what felt too easy or too hard. Feedback on piece rotation is especially welcome.

SPC World

One artwork a day as a jigsaw: 9, 25 or 49 pieces

One artwork a day as a jigsaw: 9, 25 or 49 pieces