4-piece jigsaw puzzles.
A one-minute warm-up.
Four pieces is the smallest puzzle the site offers — a 2×2 grid that takes well under a minute. Use it to feel out the controls or to give a small child their first jigsaw experience.
About 4-piece puzzles
Four pieces is less a puzzle than an introduction. The image splits into four large quarters and there's only one way each can fit, so even a three-year-old can finish without help. It's also the right way to test a new image — drop in, click around, see how the picture comes together at a glance, then choose a harder count for a real session.
Don't linger here. After a single play-through, jump straight to 16 pieces. The four-piece version is intentionally limited so the snap mechanism is impossible to misunderstand; once it's familiar, you'll want a real puzzle.