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Why rarity moves
Updated Oct 18, 2026, 3:23 PM UTC (Oct 18, 11:23 PM GMT+8) · Grounded in the official FAQ on curation, rarity, Too Clever, and gem selection.
Rarity is relative to that day’s set
A word is not born with a permanent tier. On Monday it might be the only oddball in a tiny set; on Thursday the same spelling sits beside dozens of similar names and drops a band. The board scores accepted answers against each other — not against a forever dictionary.
Answer sets are curated, then cleaned
Official FAQ: sets start from datasets the question calls for (dictionaries, wiki pages, encyclopedias, and so on), then get merged and cleaned into one list. If a fair answer never entered that pipeline, it cannot earn a tier — no matter how reasonable it feels.
Some prompts are mechanical; some are not
When a prompt can be scored against a familiarity database, rarity can be mostly automatic. When it cannot, the FAQ says the game uses LLM assistance plus a manual pass. That mix is why two “equally obscure” names can land in different bands.
“Too Clever” is its own trap
Official definition: the go-to “obscure” pick that isn’t actually that obscure. Players converge on the same witty answer, so it scores only a little above Plankton (15 points in the official client), not like a Deep Cut.
The gem is not “rarest, period”
Past a certain depth, rarity gets hard to disambiguate. The FAQ says the One in a Krillion pick also weighs fun factor — the answer that feels most satisfying to land. A Deep Cut can therefore look rarer than the gem without breaking the rules.
Practical takeaway
Chase answers that fit the prompt tightly and that other players are unlikely to share — then verify they are on the day’s accepted sheet. For nudges without the full list, use progressive hints; for the scored attempt itself, only krillion.io counts.