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 5
Round 5
Identified Albert Schweitzer in 27 counted questions.
Back to all Albert Schweitzer rounds- Questions
- 27
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 7m 1s
- Round cost
- $0.3379 All 28 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":"XSZW5TRZ"}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 a real (non-fictional) person?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person a real (non-fictional) person?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer was born on 14 January 1875 and died on 4 September 1965; he was awarded the Nobel Peace Prize.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q2
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.
Died: 4 September 1965, Lambaréné, GabonOpen nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Did this person live (or die) within the last 200 years?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person live (or die) within the last 200 years?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Born: 14 January 1875... Died: 4 September 1965Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Was this person male?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person male?"}}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... Albert Schweitzer Full name: Albert Schweitzer. Born: 14 January 1875.Open nobelprize.org (opens in a new tab)
In 1912 he and Hélène Bresslau were married, and his wife studied nursing to help her husband.Open kids.britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q5
1 · Guesser asks
Was this person primarily known for work in politics or government (including as a head of state or military leader)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known for work in politics or government (including as a head of state or military leader)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Doctor, Missionary, Philosopher and Musician; awarded the Nobel Peace Prize for his tireless humanitarian work.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 peaceprizelaureates.nobelpeacecenter.org (opens in a new tab)
2 · Answer check returns No
Q6
1 · Guesser asks
Was this person primarily known for achievements in science, mathematics, or invention?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known for achievements in science, mathematics, or invention?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer was a physician, philosopher, theologian, organist and humanitarian, and is known for his charitable work including opening a hospital in Africa.Open interlochenpublicradio.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)
His books about theology resulted in several volumes over the years that made his reputation as a major theologian.Open pbs.org (opens in a new tab)
2 · Answer check returns No
Q7
1 · Guesser asks
Was 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":"Was 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
Q8
1 · Guesser asks
Was this person primarily known as an athlete or sports figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as an athlete or sports figure?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
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)
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
Q9
1 · Guesser asks
x
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"x"}} 2 · Answer check returns Unknown
Q10
1 · Guesser asks
x
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"x"}} 2 · Answer check returns Unknown
Q11
1 · Guesser asks
Was this person primarily known as a business figure or entrepreneur?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a business figure or entrepreneur?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer was a theologian, musician, philosopher, physician, and medical missionary in Africa best known for his interpretive life of Jesus.Open librivox.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 peaceprizelaureates.nobelpeacecenter.org (opens in a new tab)
2 · Answer check returns No
Q12
1 · Guesser asks
Was this person primarily known as a religious or spiritual leader?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a religious or spiritual leader?"}} 2 · Answer check returns Unknown
Q13
1 · Guesser asks
Was this person known primarily for activism or social reform (e.g., civil rights, humanitarian work)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person known primarily for activism or social reform (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 was awarded the Nobel Peace Prize for his philosophy of "reverence for life" and tireless humanitarian work.Open peaceprizelaureates.nobelpeacecenter.org (opens in a new tab)
He dedicated himself to medical studies, seeking to build and run a hospital in Africa to alleviate suffering. The hospital in Lambaréné became his life’s work.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q14
1 · Guesser asks
Was this person assassinated?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person assassinated?"}}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
Q15
1 · Guesser asks
Was this person born in the United States?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in the United States?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer — Born: 14 January 1875, Kaysersberg, Germany (now France).Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q16
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 evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Born: 14 January 1875, Kaysersberg, Germany (now France)Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q17
1 · Guesser asks
Was this person born in Asia?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in Asia?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer — Born: 14 January 1875, Kaysersberg, Germany (now France).Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q18
1 · Guesser asks
Was this person born in Europe?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in Europe?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Born: 14 January 1875, Kaysersberg, Germany (now France)Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q19
1 · Guesser asks
Was this person imprisoned at some point in their life?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person imprisoned at some point in their life?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
After Schweitzer had obtained his MD degree, he founded the Albert Schweitzer Hospital in French Equatorial Africa in 1913. After a brief period of imprisonment as a prisoner of war in a French internment camp between the years 1917–1918...Open history.rcp.ac.uk (opens in a new tab)
During World War I Schweitzer and his wife, though French, were interned in France as German subjects.Open kids.britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q20
1 · Guesser asks
Was this person born in the United Kingdom or Ireland?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in the United Kingdom or Ireland?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Born: 14 January 1875, Kaysersberg, Germany (now France)Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q21
1 · Guesser asks
Was this person born in Germany?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in Germany?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Born: 14 January 1875, Kaysersberg, Germany (now France)Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q22
1 · Guesser asks
Did this person die during the Second World War era (1939–1945)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die during the Second World War era (1939–1945)?"}}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
Q23
1 · Guesser asks
Did this person die before 1900?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die before 1900?"}}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
Q24
1 · Guesser asks
Was this person Jewish?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person Jewish?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
His father, Louis Schweitzer, was an Evangelical Lutheran pastor in the Alsatian town of Gunsbach.Open mayoclinicproceedings.org (opens in a new tab)
Schweitzer was married to a baptized Jew.Open cambridge.org (opens in a new tab)
2 · Answer check returns No
Q25
1 · Guesser asks
Was this person primarily active in the 20th century?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily active in the 20th century?"}}Oracle evidence2 model-reported sources
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)
In 1905 Schweitzer decided to study medicine; in 1913 he received his medical degree; he died on Sept. 4, 1965.Open kids.britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q26
1 · Guesser asks
Did this person live past 1970?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person live past 1970?"}}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
Q27
1 · Guesser asks
Did this person spend a substantial part of their career in Africa?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person spend a substantial part of their career in Africa?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
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
German-born physician, theologian and humanitarian who founded a hospital in Lambaréné, Gabon
Validator rationale The proposed identity names Albert Schweitzer and matches the trusted subject’s defining roles and Lambaréné hospital.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German-born physician, theologian and humanitarian who founded a hospital in Lambaréné, Gabon","name":"Albert Schweitzer","question":null}} 2 · Validator returns Yes