Fossil Folio

Curate three six-card fossil exhibits. Put every card in a different slot, oldest to youngest if you can, while linking habitats and giving specimens their favorite places. Ages are fictional relative age units, not real fossil dates. No hidden information and no timer.

Scoring: each adjacent pair in descending age order earns 8; each same-habitat adjacent pair earns 6; each card in its favorite slot earns 10. Each exhibit has an exact best raw score. Earn round(100 × your raw score / best), up to 100 per exhibit and 300 total. Free previews show every component. Only open banks the arrangement.

Commands: preview 1 2 3 4 5 6; open 1 2 3 4 5 6; show; help; seed 123 (before the first exhibit opens). Enter six different card IDs in slot order. Commas work too.
Gallery open