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 2s
- Round cost
- $0.2029 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":"BKXG3AZI"}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 part of Greek or Roman mythology?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the figure part of 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)
The warrior Achilles is one of the great heroes of Greek mythology.Open history.com (opens in a new tab)
2 · Answer check returns Yes
Q2
1 · Guesser asks
Is the figure a god or goddess?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the figure a god or goddess?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
In Greek mythology Achilles was the strongest warrior and hero in the Greek army during the Trojan War.Open britannica.com (opens in a new tab)
Born to the mortal king Peleus and the sea nymph Thetis, Achilles was dipped in the magical River Styx as a child.Open britannica.com (opens in a new tab)
Achilles was a warrior, but he was also a demigod. His parents were Peleus and Thetis.Open theoi.com (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Is the figure human, or a hero of human parentage, rather than a monster or other nonhuman creature?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the figure human, or a hero of human parentage, rather than a monster or other nonhuman creature?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Achilles, in Greek mythology, son of the mortal Peleus ... and the Nereid, or sea nymph, Thetis. Achilles was ... the greatest warrior ... 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.
Thetis had a son ... Achilles is born.Open britishmuseum.org (opens in a new tab)
2 · Answer check returns Yes
Q5
1 · Guesser asks
Does the figure take part in the Trojan War?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the figure take part in the Trojan War?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Role In: Trojan WarOpen britannica.com (opens in a new tab)
Achilles slays Hector in single combat during the Trojan War.Open britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q6
1 · Guesser asks
Does he fight on the Greek side in the Trojan War?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does he fight on the Greek side in the Trojan War?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Achilles, the greatest Greek warrior of the Trojan War, slays Hector in single combat.Open britannica.com (opens in a new tab)
Zeus agreed to give the Trojans success in the absence of Achilles, the best warrior of the Achaeans.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q7
1 · Guesser asks
Does he die during the Trojan War, before the Greeks return home?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does he die during the Trojan War, before the Greeks return home?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Other sources concur that he was killed near the end of the Trojan War by Paris, who shot him with an arrow.Open en.wikipedia.org (opens in a new tab)
Other texts describe Achilles' death, the sacking of Troy, and the Achaean victory.Open study.com (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Achilles
Greek hero of the Trojan War, son of Peleus and the sea goddess Thetis, renowned as the Greeks' greatest warrior.
Validator rationale The proposed identity matches Achilles, the Greek mythological hero and greatest Greek warrior of the Trojan War.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Greek hero of the Trojan War, son of Peleus and the sea goddess Thetis, renowned as the Greeks' greatest warrior.","name":"Achilles","question":null}} 2 · Validator returns Yes