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 4
Round 4
Identified Albert Schweitzer in 22 counted questions.
Back to all Albert Schweitzer rounds- Questions
- 22
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 8m 47s
- Round cost
- $0.7974 All 23 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":"BYOMPCJW"}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 currently alive?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person currently alive?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Died: 4 September 1965, Lambaréné, GabonOpen nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q2
1 · Guesser asks
Did the person die before the year 1900?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person die before the year 1900?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer (January 14, 1875-September 4, 1965)Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Was the person primarily known as a politician or head of state?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a politician or head of state?"}}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)
Role: Missionary surgeon; Founder of Lambaréné (République de Gabon).Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q4
1 · Guesser asks
Was the 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":"Was the 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.
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)
“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
Q5
1 · Guesser asks
Was the person primarily known as a scientist, inventor, or academic?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a scientist, inventor, or academic?"}}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)
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)
2 · Answer check returns No
Q6
1 · Guesser asks
Was the person primarily known as an athlete or sports figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as an athlete or sports figure?"}}Oracle evidence3 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; he received the 1952 Nobel Prize for Peace for his work on behalf of the “Brotherhood of Nations.”Open britannica.com (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
Q7
1 · Guesser asks
Was the person primarily known as a military figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a military figure?"}}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 received the 1952 Nobel Prize for Peace for his humanitarian work.Open britannica.com (opens in a new tab)
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)
2 · Answer check returns No
Q8
1 · Guesser asks
Was the person primarily known as a religious figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a religious figure?"}}Oracle evidence3 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)
Role: Missionary surgeon; Founder of Lambaréné.Open nobelprize.org (opens in a new tab)
Dr. Schweitzer became especially famous for giving benefit concerts and lectures in Europe as a means of fundraising for his hospital back in Africa.Open michiganpublic.org (opens in a new tab)
2 · Answer check returns No
Q9
1 · Guesser asks
Was the person primarily known as a businessperson or entrepreneur?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a businessperson or entrepreneur?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Much of his fame as a theological scholar rests on his 1906 book; he was also internationally known as a concert organist.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
Q10
1 · Guesser asks
Was the person primarily known as an activist or social reformer?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as an activist or social reformer?"}}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)
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)
2 · Answer check returns No
Q11
1 · Guesser asks
Was the person primarily known as a criminal or for committing crimes?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a criminal or for committing crimes?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The Nobel Peace Prize 1952 was awarded to Albert Schweitzer “for his altruism, reverence for life, and tireless humanitarian work.”Open nobelprize.org (opens in a new tab)
Albert Schweitzer — Facts: Doctor, Missionary, Philosopher and Musician; Nobel Peace Prize 1952.Open nobelprize.org (opens in a new tab)
At Lambaréné, Schweitzer was doctor and surgeon in the hospital, pastor of a congregation, administrator of a village, writer, and musician.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q12
1 · Guesser asks
Was the person primarily known as an explorer, aviator, or astronaut?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as an explorer, aviator, or astronaut?"}}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)
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)
2 · Answer check returns No
Q13
1 · Guesser asks
Was the person a member of a royal family or nobility?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person a member of a royal family or nobility?"}} 2 · Answer check returns Unknown
Q14
1 · Guesser asks
Was the person primarily known as a journalist, broadcaster, or television host?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a journalist, broadcaster, or television host?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
In 1906 he published The Quest of the Historical Jesus, a book on which much of his fame as a theological scholar rests. ... Schweitzer was ... internationally known [as] a concert organist.Open nobelprize.org (opens in a new tab)
Role: Missionary surgeon; Founder of Lambaréné. ... Doctor, Missionary, Philosopher and Musician.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q15
1 · Guesser asks
Was the person primarily known as a lawyer, judge, or legal figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a lawyer, judge, or legal figure?"}}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)
At Lambaréné, Schweitzer was doctor and surgeon in the hospital.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q16
1 · Guesser asks
Was the person primarily known for work in medicine or healthcare (e.g., physician, nurse, psychoanalyst)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known for work in medicine or healthcare (e.g., physician, nurse, psychoanalyst)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Although highly gifted in science, theology, music, and authorship, Schweitzer dedicated the last six decades of his life to medicine and to the hospital he founded in Lambaréné, Gabon.Open press.jhu.edu (opens in a new tab)
The mere mention of the name Schweitzer instantly conjured up images of selflessness, heroism and the very model of a modern, humane physician.Open pbs.org (opens in a new tab)
2 · Answer check returns Yes
Q17
1 · Guesser asks
Was the person a woman?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person a woman?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
the man of LambarénéOpen pmc.ncbi.nlm.nih.gov (opens in a new tab)
Time magazine hailed him as the “Greatest Man in the World”.Open deutschland.de (opens in a new tab)
2 · Answer check returns No
Q18
1 · Guesser asks
Was the person primarily known as a surgeon?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a surgeon?"}}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)
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)
2 · Answer check returns No
Q19
1 · Guesser asks
Was the person a psychiatrist or psychoanalyst?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person a psychiatrist or psychoanalyst?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
At Lambaréné, Schweitzer was doctor and surgeon in the hospital.Open nobelprize.org (opens in a new tab)
He received his M.D. in 1913 with specialization qualifications in tropical medicine and surgery.Open pbs.org (opens in a new tab)
2 · Answer check returns No
Q20
1 · Guesser asks
Was the person born in the United States?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person born in the United States?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer was born on 14 January 1875 in Kaysersberg in Alsace.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns No
Q21
1 · Guesser asks
Was the person born in Europe?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person born in Europe?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
I was born on 14 January 1875 in Kaysersberg, in Upper Alsace.Open schweitzer.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
Q22
1 · Guesser asks
Did the person win a Nobel Prize?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person win a Nobel Prize?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
The Nobel Peace Prize 1952 was awarded to Albert Schweitzer.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Albert Schweitzer
Alsatian-German physician, medical missionary in Lambaréné, Gabon, and 1952 Nobel Peace Prize laureate
Validator rationale The proposed identity matches Albert Schweitzer, including his medical mission in Lambaréné and 1952 Nobel Peace Prize.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Alsatian-German physician, medical missionary in Lambaréné, Gabon, and 1952 Nobel Peace Prize laureate","name":"Albert Schweitzer","question":null}} 2 · Validator returns Yes