Read the rule before answering
Count letters in the official codeword, ignoring its hyphen. An accepted alternative spelling still identifies the same canonical codeword; the keystroke count is not the membership test.
Six untimed questions, starting with this one.
Check an answer here
Check this question’s accepted set without submitting to a game or opening the full answer list.
Only your submitted spelling will be checked. Other answers stay hidden.
Read the lesson — reveals answers & strategy
Understand the boundary
Membership uses the official NATO spelling. Alfa has four letters, even though the accepted alias Alpha has five. Punctuation is ignored when counting X-ray, leaving four letters. An alias never changes the category an answer belongs to.
Verify the facts: NATO · Phonetic alphabet ↗
Choose an answer for your goal
Lima earns 90 fixed points and Papa 84; both are four-letter canonical names that require no special punctuation. An easy-looking word can still fail if it comes from the wrong subset. Prepare two members of this set so you can switch quickly after a rejected input without changing the rule you are solving.
Worked examples — reveals answers
- Alpha · Accepted
- Maps to Alfa, whose official spelling has four letters.
- Xray · Accepted
- Maps to X-ray; the hyphen is not counted as a letter.
- Bravo · Outside this set
- A valid NATO codeword, but its five letters fail this narrower question.
Practice the distinction
Predict the result for Alpha, Xray and Bravo, then check them one at a time. Explain each outcome using the canonical name’s letter count rather than the number of keys you pressed.
Try it in the checker ↑Give me a hint — no answer revealed
Start with the full category, then apply the exact boundary: Use the official spelling. Alfa, not Alpha, is four letters. You only need one qualifying answer. A longer name is not automatically rarer.
Reveal a verified practice pick
This pick belongs to the selected question’s answer set. Points are a fixed knowledge rating.
Reveal a fast high-scoring answer
Shortest accepted input at 65+ points
LimaLima · 90 points · 4 characters
Lima represents the letter L in the NATO phonetic alphabet.
Highest fixed score
Lima90 points · Shortest accepted spelling: Lima
These are editorial points, separate from real player choice counts.
Reveal all 9 practice answers
Filter by a name or listed alias. Scores are fixed knowledge ratings.
9 accepted answers
No answers match these filters. Try another spelling or a lower minimum score.
What players actually choose
– UTC · 135 recorded daily rounds. Source: Krillion io daily submissions. Skips and timeouts are included in the denominator; practice and Battle are excluded.
51 / 135 rounds ended with an accepted answer (37.8%). Average: 14.7 fixed points.
Compare observed choices — reveals answers
Question quality signals
These measurements cover completed daily rounds recorded with timing and rejection details. Older rounds without those fields are excluded. At least 20 measured rounds are required per question.
Review thresholds: below 20% accepted, at least 40% timed out, or at least 30% of rounds with an unlisted input. These flags suggest checking the wording and answer coverage; they do not prove an answer is wrong or change points automatically. Abandoned rounds and practice attempts are not included.
How these statistics work
- What is counted
- Source: Krillion io daily submissions. Skips and timeouts count as rounds; practice and Battle are excluded.
- When comparisons appear
- A question needs at least 20 recorded rounds. An answer also needs at least 5 recorded choices within that question.
- What the data can tell you
- These anonymous browser records are not verified unique people or a representative survey. The player rarity index does not change game points or predict the original Krillion game. Raw submissions stay private.
Rule examples & common mix-ups — may reveal answers
- Enter a full codeword rather than its letter. For letter-count questions, count the official spelling: Alfa and Juliett; ignore punctuation in X-ray.
These notes explain the question boundary; they are not a ranking of player mistakes.
Why these answers qualify
Each entry belongs to the bounded set defined by the prompt. The named source supports the underlying facts; our editorial scoring is a separate layer.
Source: NATO · Phonetic alphabet ↗
Reference version: 2026-09-13. See our answer policy for how we handle aliases and omissions.