You are the Guesser being evaluated in a Twenty Questions benchmark. One subject is hidden. The initial BEGIN message provides its broad category as trusted game metadata. Identify the subject using as few counted questions as possible. ASK is only for learning a property that helps distinguish possible candidates. Never use ASK to confirm a named candidate or ask whether the subject is a specific identity. When you are ready to name a candidate, use GUESS immediately. A correct GUESS costs zero counted questions; an incorrect GUESS costs exactly one, the same as ASK. A GUESS must provide both a name and a short identifying description. The engine replies only YES, NO, or UNKNOWN; UNKNOWN is a valid answer meaning the factual adjudication system could not determine the proposition under its evidence policy. Questions requiring proof of absence, exclusivity, completeness, exact counts, or subjective classification are more likely to return UNKNOWN. Prefer direct, positively verifiable properties when possible. The initial BEGIN event includes an opaque variation_token that contains no information about the hidden subject. Do not interpret, repeat, mention, or derive meaning from it. After BEGIN, each user reply is either one adjudicated YES, NO, or UNKNOWN token or a fixed FORMAT_ERROR event. FORMAT_ERROR means your immediately preceding response did not match the required structured-action contract, was not semantically adjudicated, and consumed one counted turn. Use the formats in that event and try again. Never infer that the attempted question or guess was right or wrong. At most 50 questions or rejected guesses are counted. After that limit you receive one final guess-only opportunity. Format errors also consume counted turns. The provider wire response is an object with exactly one `result` action. On the final opportunity ASK is forbidden. Return only the required structured response. Do not include analysis, hidden reasoning, or additional fields.
- Questions
- 7
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 2m 5s
- Round cost
- $0.1487 All 8 turns
Transcript
Questions and answers.
Turns are shown in the order they happened. Each shows the Guesser's question or guess, then the final checked answer.
Exact Guesser setupSystem message and BEGIN event
The Guesser received these messages at the start of the round. The BEGIN message holds the broad category and a code made from the base seed and round number, which reveals nothing about the subject.
{"category":"mythological_figure","event":"BEGIN","variation_token":"AMZAISLM"}Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.
Q1
1 · Guesser asks
Is the figure from Greek or Roman mythology?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the figure from Greek or Roman mythology?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
In Greek mythology, Achilles (or Achilleus) was a hero of the Trojan War.Open en.wikipedia.org (opens in a new tab)
In Greek mythology, Achilles was the greatest warrior of the Greek army in the Trojan War.Open britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q2
1 · Guesser asks
Is the figure a god or goddess (a deity rather than a mortal or monster)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the figure a god or goddess (a deity rather than a mortal or monster)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The life of the Greek hero Achilles, as related in the Homeric epic the Iliad and in other ancient texts.Open metmuseum.org (opens in a new tab)
Almost immortal and destined for glory ... Achilles was fathered by Peleus.Open britannica.com (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Is the figure a mortal human (hero or heroine) rather than a monster or creature?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the figure a mortal human (hero or heroine) rather than a monster or creature?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Despite his greatness he was still mortal and fated to die. A hero cult for Achilles developed in several areas across Greece.Open britishmuseum.org (opens in a new tab)
Achilles, in Greek mythology, son of the mortal Peleus ... Achilles was the bravest, handsomest, and greatest warrior of the army of Agamemnon in the Trojan War.Open britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Is the figure male?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the figure male?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Gender | MaleOpen greekmythology.com (opens in a new tab)
2 · Answer check returns Yes
Q5
1 · Guesser asks
Is the figure a major character in Homer's Iliad or Odyssey (part of the Trojan War saga)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the figure a major character in Homer's Iliad or Odyssey (part of the Trojan War saga)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Achilles was a hero of the Trojan War and is the main character of Homer's Iliad.Open simple.wikipedia.org (opens in a new tab)
The story of Achilles appears in Homer's Iliad and elsewhere; he was the most successful soldier in the Greek army during the Trojan War.Open britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q6
1 · Guesser asks
Did the figure fight on the Greek (Achaean) side in the Trojan War?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the figure fight on the Greek (Achaean) side in the Trojan War?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Achilles was the bravest, handsomest, and greatest warrior of the army of Agamemnon in the Trojan War.Open britannica.com (opens in a new tab)
According to the Iliad, Achilles arrived at Troy with 50 ships, each carrying 50 Myrmidons.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q7
1 · Guesser asks
Did the figure die during the Trojan War (before the fall of Troy)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the figure die during the Trojan War (before the fall of Troy)?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Although The Iliad does not tell the story of the death of Achilles, we know that he dies before Troy falls. Paris kills him with an arrow.Open courses.lumenlearning.com (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Achilles
Greek hero of the Trojan War, greatest warrior of the Achaeans, killed by an arrow to his heel
Validator rationale The proposed identity matches Achilles, the Greek mythological hero and foremost Greek warrior of the Trojan War.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Greek hero of the Trojan War, greatest warrior of the Achaeans, killed by an arrow to his heel","name":"Achilles","question":null}} 2 · Validator returns Yes