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 24 counted questions.
Back to all Albert Schweitzer rounds- Questions
- 24
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 6m 23s
- Round cost
- $0.3068 All 25 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 this person still alive?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person still alive?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer ... Died: 4 September 1965, Lambaréné, GabonOpen nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q2
1 · Guesser asks
Did this person live primarily during the 20th century?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person live primarily during the 20th century?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer was born 14 January 1875 and died 4 September 1965.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q3
1 · Guesser asks
Was this person a man?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a man?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Nominee: Albert Schweitzer; Gender: MOpen nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Is this person primarily known for work in politics or government (including as a head of state or political leader)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for work in politics or government (including as a head of state or political leader)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Role: Missionary surgeon; Founder of Lambaréné (République de Gabon)Open nobelprize.org (opens in a new tab)
He is best known for founding the mission hospital at Lambaréné, providing medical aid to thousands.Open artuk.org (opens in a new tab)
2 · Answer check returns No
Q5
1 · Guesser asks
Is this person primarily known for work in the arts or entertainment (e.g., music, film, literature, visual art)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for work in the arts or entertainment (e.g., music, film, literature, visual art)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
He is best known for founding the mission hospital at Lambaréné, providing medical aid to thousands.Open artuk.org (opens in a new tab)
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)
2 · Answer check returns No
Q6
1 · Guesser asks
Is this person primarily known for work in science, mathematics, or invention?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for work in science, mathematics, or invention?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
He is best known for founding the mission hospital at Lambaréné, providing medical aid to thousands.Open artuk.org (opens in a new tab)
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)
2 · Answer check returns No
Q7
1 · Guesser asks
Is this person primarily known for achievements in sports or athletics?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for achievements in sports or athletics?"}}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)
Albert Schweitzer was nominated for his humanitarian work... he and his wife set up a hospital.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q8
1 · Guesser asks
x
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"x"}} 2 · Answer check returns Unknown
Q9
1 · Guesser asks
Is this person primarily known for business, industry, or entrepreneurship?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for business, industry, or entrepreneurship?"}}Oracle evidence3 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)
Doctor, Missionary, Philosopher and Musician.Open nobelprize.org (opens in a new tab)
Alsatian Theologian, Philosopher & PhysicianOpen britannica.com (opens in a new tab)
2 · Answer check returns No
Q10
1 · Guesser asks
Is this person primarily known for religious or spiritual leadership?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for religious or spiritual leadership?"}}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 1952, primarily for his work at his hospital at Lambaréné.Open lbi.org (opens in a new tab)
He is best known for his medical work in Africa, where he founded a hospital in Lambaréné, Gabon.Open visit.alsace (opens in a new tab)
2 · Answer check returns No
Q11
1 · Guesser asks
Is this person primarily known for military activity or warfare?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for military activity or warfare?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
He is best known for founding the mission hospital at Lambaréné, providing medical aid to thousands.Open artuk.org (opens in a new tab)
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)
2 · Answer check returns No
Q12
1 · Guesser asks
Is this person primarily known for social activism or advocacy for a cause (e.g., civil rights, humanitarian work)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for social activism or advocacy for a cause (e.g., civil rights, humanitarian work)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer received the Nobel Peace Prize for his tireless humanitarian work; he built and ran a hospital at Lambaréné to alleviate suffering.Open nobelprize.org (opens in a new tab)
He devoted his life to humanitarian aid and the promotion of peace ... he is best known for his medical work.Open kaysersberg.com (opens in a new tab)
2 · Answer check returns Yes
Q13
1 · Guesser asks
Was this person American (from the United States)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person American (from the United States)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer considered himself French and would formally take French citizenship after World War I.Open mayoclinicproceedings.org (opens in a new tab)
Albert Schweitzer was born in Kaysersberg, Germany (now France).Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q14
1 · Guesser asks
Was this person from Asia?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person from Asia?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer was born in Kaysersberg, Upper Alsace, Germany (now in France).Open britannica.com (opens in a new tab)
Albert Schweitzer – Facts: Born: 14 January 1875, Kaysersberg, Germany (now France).Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q15
1 · Guesser asks
Was this person from Africa?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person from Africa?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer was born in Alsace in the then German Empire.Open nobelprize.org (opens in a new tab)
Albert Schweitzer is born ... in Upper-Alsace, Germany (now Haut-Rhin, France).Open history.com (opens in a new tab)
2 · Answer check returns No
Q16
1 · Guesser asks
Was this person from Europe?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person from Europe?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer was born in Alsace in the then German Empire.Open nobelprize.org (opens in a new tab)
Albert Schweitzer is born on January 14, 1875 in Upper-Alsace, Germany (now Haut-Rhin, France).Open history.com (opens in a new tab)
2 · Answer check returns Yes
Q17
1 · Guesser asks
Was this person killed or did they die as a direct result of persecution, imprisonment, or violence?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person killed or did they die as a direct result of persecution, imprisonment, or violence?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
His death was attributed to circulatory trouble brought on by his advanced age.Open archive.nytimes.com (opens in a new tab)
2 · Answer check returns No
Q18
1 · Guesser asks
Is this person primarily known for activity connected to World War II or the Holocaust (e.g., rescuing or aiding victims)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for activity connected to World War II or the Holocaust (e.g., rescuing or aiding victims)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer is remembered as a great humanist who helped heal the sick and poor over decades in Africa.Open dw.com (opens in a new tab)
He built and ran a hospital at the mission station Lambarene in Gabon.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q19
1 · Guesser asks
Was this person a woman?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a woman?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Together with his wife, who was a nurse, he built and ran a hospital...Open nobelprize.org (opens in a new tab)
The Nobel Peace Prize for 1952... was given to himOpen nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q20
1 · Guesser asks
Was this person primarily associated with peace, anti-war, or anti-nuclear activism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily associated with peace, anti-war, or anti-nuclear activism?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer is remembered as a great humanist who helped heal the sick and poor over decades in Africa.Open dw.com (opens in a new tab)
Doctor, Missionary, Philosopher and Musician ... he built and ran a hospital at the mission station Lambarene in Gabon.Open nobelprize.org (opens in a new tab)
The respect of the Nobel Prize Laureate for all life made him issue his warning against nuclear tests and the dangers from radioactive fall-out.Open nobelpeaceprize.org (opens in a new tab)
2 · Answer check returns No
Q21
1 · Guesser asks
Was this person British?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person British?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer considered himself French — and would formally take French citizenship after World War I.Open mayoclinicproceedings.org (opens in a new tab)
Albert Schweitzer ... was a German—and later French—theologian, organist, philosopher, physician, and medical missionary in Africa.Open openroadmedia.com (opens in a new tab)
2 · Answer check returns No
Q22
1 · Guesser asks
Was this person primarily associated with humanitarian relief or medical/charitable aid work?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily associated with humanitarian relief or medical/charitable aid work?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Doctor, Missionary, Philosopher and Musician... Together with his wife... he built and ran a hospital at the mission station Lambarene in Gabon.Open nobelprize.org (opens in a new tab)
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)
Dr. Albert Schweitzer, a renowned medical missionary... Among his many charitable works, Dr. Schweitzer founded a hospital in Lambaréné.Open pbs.org (opens in a new tab)
2 · Answer check returns Yes
Q23
1 · Guesser asks
Was this person a trained physician or medical doctor?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a trained physician or medical doctor?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Accordingly studied medicine.Open nobelprize.org (opens in a new tab)
In 1913 Schweitzer received his medical degree.Open kids.britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q24
1 · Guesser asks
Did this person work primarily in Africa?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person work primarily in Africa?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Originally a student of theology and philosophy, he entered medical school in 1905 in order to qualify as a mission doctor in Gabon... In 1913 he arrived at Lambaréné where he and his wife set up a hospital. He spent most of his life at Lambaréné.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Albert Schweitzer
Alsatian-German physician and humanitarian who founded a hospital in Lambaréné, Gabon, and won the 1952 Nobel Peace Prize
Validator rationale The proposed identity exactly matches Albert Schweitzer and agrees with the trusted description, including his Lambaréné hospital and 1952 Nobel Peace Prize.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Alsatian-German physician and humanitarian who founded a hospital in Lambaréné, Gabon, and won the 1952 Nobel Peace Prize","name":"Albert Schweitzer","question":null}} 2 · Validator returns Yes