The Archivist's Grid
Daily word grid
Sixteen index cards, four hidden drawers. Drop four that belong together into the drawer. Four misfiles and the archive shuts for the day.
Filed 0 of 4
Find 4 groups of 4. Drop 4 words that belong together into the drawer and it files itself. Watch out: some words fit two groups, but only one way sorts all 16. 4 wrong files and the archive closes.
Choose four cards that share a link; they go into the open drawer. Arrow keys move between cards; Space or Enter picks one or puts it back. F files the four in the drawer, M mixes, C clears, H asks the Locksmith for a hint.
Consult the Locksmith
Hints are free. Each one points at the easiest drawer still open.
Filed
A new file at midnight, your time
Why each drawer links
Your share card
The card never shows a word or a link.