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.
Round 2
Round 2
Identified Albert Schweitzer in 18 counted questions.
Back to all Albert Schweitzer rounds- Questions
- 18
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 7m 35s
- Round cost
- $0.3966 All 19 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":"person","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 person male?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person male?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer ... was the son of a Lutheran minister.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns Yes
Q2
1 · Guesser asks
Is the person currently alive?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person currently alive?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer died on 4 September 1965 at his beloved hospital in Lambaréné.Open en.wikipedia.org (opens in a new tab)
Albert Schweitzer died on September 4, 1965, at the age of 90.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Was the person a political leader or head of government?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person a political leader or head of government?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer — Alsatian-German theologian and physician.Open britannica.com (opens in a new tab)
At Lambaréné, Schweitzer was doctor and surgeon in the hospital, pastor of a congregation, administrator of a village, superintendent of buildings and grounds, writer, musician, and host to visitors.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q4
1 · Guesser asks
Was this person known primarily for achievements in science or mathematics?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person known primarily for achievements in science or mathematics?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer was awarded the Nobel Peace Prize for his philosophy of “reverence for life” and tireless humanitarian work.Open nobelprize.org (opens in a new tab)
A theologian, Albert Schweitzer changed his course after reading of the desperate need for medical assistance in the French colony of Gabon.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q5
1 · Guesser asks
Was the person known primarily as an artist, writer, musician, or other creative figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person known primarily as an artist, writer, musician, or other creative figure?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Musician, theologian and physician, Albert Schweitzer was above all, a true humanitarian.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
The award ... symbolized the near-universal admiration he attained through his life of devotion as a medical missionary in Africa.Open ebsco.com (opens in a new tab)
2 · Answer check returns No
Q6
1 · Guesser asks
Was the person known primarily as an athlete or sports figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person known primarily as an athlete or sports figure?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The theologian, musician, philosopher and Nobel Prize-winning physician Albert Schweitzer...Open history.com (opens in a new tab)
Schweitzer was a renowned organist... biblical scholar... medical missionary... receiving the Nobel Peace Prize.Open ebsco.com (opens in a new tab)
2 · Answer check returns No
Q7
1 · Guesser asks
Was the person known primarily as an actor, entertainer, or performer?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person known primarily as an actor, entertainer, or performer?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Musician, theologian and physician, Albert Schweitzer was above all, a true humanitarian.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
Albert Schweitzer ... devoted to religion, music, and education.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q8
1 · Guesser asks
Was this person primarily known as a military leader or soldier?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a military leader or soldier?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Role: Missionary surgeon; Founder of Lambaréné. Prize motivation: “for his altruism, reverence for life, and tireless humanitarian work.”Open nobelprize.org (opens in a new tab)
Albert Schweitzer was an Alsatian-German theologian, philosopher, organist, and mission doctor in equatorial Africa.Open britannica.com (opens in a new tab)
2 · Answer check returns No
Q9
1 · Guesser asks
Did this person live primarily in the 20th century?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person live primarily in the 20th century?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer (1875–1965)Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns Yes
Q10
1 · Guesser asks
Was this person known primarily as a businessperson, industrialist, or entrepreneur?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person known primarily as a businessperson, industrialist, or entrepreneur?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A theologian, Albert Schweitzer changed his course ... The Nobel Peace Prize recognized his philosophy of “reverence for life” and tireless humanitarian work.Open nobelprize.org (opens in a new tab)
Musician, theologian and physician, Albert Schweitzer was above all, a true humanitarian.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns No
Q11
1 · Guesser asks
Was this person primarily associated with the United States?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily associated with the United States?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer was born in Alsace, but spent most of his life in Gabon (then French Equatorial Africa), where he founded the Lambaréné Hospital in 1913.Open encyclopedia.com (opens in a new tab)
Albert Schweitzer was awarded the Nobel Peace Prize for his philosophy of “reverence for life” and tireless humanitarian work. Born in Kaysersberg, Germany (now France), he died in Lambaréné, Gabon.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q12
1 · Guesser asks
Was this person primarily associated with Europe?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily associated with Europe?"}} 2 · Answer check returns Unknown
Q13
1 · Guesser asks
Was this person primarily associated with Asia?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily associated with Asia?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer ... was an Alsatian-German theologian, philosopher, organist, and mission doctor in equatorial Africa. He ... established a hospital in Lambaréné, Gabon.Open britannica.com (opens in a new tab)
Minister turned doctor in Africa ... Schweitzer changed his course after reading of the desperate need for medical assistance in the French colony of Gabon.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q14
1 · Guesser asks
Was this person primarily associated with Africa?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily associated with Africa?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Dr. Albert Schweitzer was the preeminent Christian medical missionary in Africa.Open dacb.org (opens in a new tab)
Schweitzer founded his hospital at Lambaréné in French Equatorial Africa and, except for relatively short periods, spent the remainder of his life there.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q15
1 · Guesser asks
Was this person known primarily as a religious figure or spiritual leader?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person known primarily as a religious figure or spiritual leader?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Musician, theologian and physician, Albert Schweitzer was above all, a true humanitarian.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
He had to promise to serve only as a physician, not a minister, at the mission station in Africa.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q16
1 · Guesser asks
Was this person of sub-Saharan African descent?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person of sub-Saharan African descent?"}} 2 · Answer check returns Unknown
Q17
1 · Guesser asks
Was this person born in Africa?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in Africa?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer is born ... in Upper-Alsace, Germany (now Haut-Rhin, France).Open history.com (opens in a new tab)
Albert was born in 1875 in Kaysersberg (Alsace-Lorraine), Germany, (now Haut-Rhin, France).Open pbs.org (opens in a new tab)
2 · Answer check returns No
Q18
1 · Guesser asks
Was this person primarily known as a physician, humanitarian, or missionary?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a physician, humanitarian, or missionary?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Musician, theologian and physician, Albert Schweitzer was above all, a true humanitarian.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
Prize motivation: “for his altruism, reverence for life, and tireless humanitarian work.”Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Albert Schweitzer
German-French physician, theologian, and humanitarian who founded a hospital in Lambaréné, Gabon, and won the Nobel Peace Prize
Validator rationale The proposed identity matches Albert Schweitzer, including his profession, humanitarian work in Lambaréné, and Nobel Peace Prize.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German-French physician, theologian, and humanitarian who founded a hospital in Lambaréné, Gabon, and won the Nobel Peace Prize","name":"Albert Schweitzer","question":null}} 2 · Validator returns Yes