About This Puzzle
Did you know? Ferns first appeared in the mid-Devonian period and are among the oldest land plants on Earth, reproducing via spores rather than seeds — a method predating the dinosaurs by over 100 million years. Source
Photograph by Buddy AN via Unsplash.
Estimated Solve Times
- 10 pieces: Under 1 minute
- 36 pieces: 3-6 minutes
- 64 pieces: 8-15 minutes
- 100 pieces: 15-30 minutes
- 200 pieces: 35-60 minutes
- 400 pieces: 1-2 hours
