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 31 counted questions.
Back to all Albert Schweitzer rounds- Questions
- 31
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 17m 47s
- Round cost
- $0.6878 All 32 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 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.
He was a theologian, organist, musicologist, writer, humanitarian, philosopher, and physician.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q2
1 · Guesser asks
Is this person currently alive?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person currently alive?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer died on September 4, 1965, and was buried at Lambaréné.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Is this person a fictional character?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person a fictional character?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer – Biographical. NobelPrize.org.Open nobelprize.org (opens in a new tab)
Albert Schweitzer (1875–1965) ... Musician, theologian and physician.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns No
Q4
1 · Guesser asks
Was this person primarily known for political or governmental activity?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known for political or governmental activity?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
His fame as a theological scholar rests on The Quest of the Historical Jesus; 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
Q5
1 · Guesser asks
Was this person primarily known for work in the arts or entertainment?
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?"}}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)
For his medical and humanitarian works, Schweitzer won many awards, including ... the Nobel Peace Prize.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q6
1 · Guesser asks
Was this person primarily known for work in science, mathematics, or invention?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was 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.
Much of his fame as a theological scholar rests on his 1906 book The Quest of the Historical Jesus; he was also internationally known as a concert organist.Open nobelprize.org (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
Q7
1 · Guesser asks
Was this person primarily known as an athlete or for achievements in sports?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as an athlete or for achievements in sports?"}}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 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
Q8
1 · Guesser asks
Was this person primarily known for business, entrepreneurship, or industry?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known for business, entrepreneurship, or industry?"}}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 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
Was this person primarily known for military leadership or warfare?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known for military leadership or warfare?"}}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, he was doctor and surgeon in the hospital, pastor of a congregation, administrator of a village, and writer of scholarly books.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q10
1 · Guesser asks
Was this person primarily known as a religious figure or spiritual leader?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known 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 was internationally known as a concert organist, and much of his fame as a theological scholar rested on his 1906 book The Quest of the Historical Jesus.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q11
1 · Guesser asks
Was this person primarily known as a philosopher or for contributions to philosophy?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a philosopher or for contributions to philosophy?"}}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 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 Yes
Q12
1 · Guesser asks
Did this person live in antiquity (before 500 CE)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person live in antiquity (before 500 CE)?"}}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
Q13
1 · Guesser asks
Did this person live during the medieval period (roughly 500-1500 CE)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person live during the medieval period (roughly 500-1500 CE)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer, born on January 14, 1875 in Alsace, Germany.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
Albert Schweitzer (1875-1965)Open museeprotestant.org (opens in a new tab)
2 · Answer check returns No
Q14
1 · Guesser asks
Did this person live primarily in the 16th, 17th, or 18th century?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person live primarily in the 16th, 17th, or 18th century?"}}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
Q15
1 · Guesser asks
Did this person live primarily in the 19th century?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person live primarily in the 19th century?"}}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
Q16
1 · Guesser asks
Was this person European?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person European?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer, an Alsatian-German theologian, philosopher, organist, and mission doctor.Open britannica.com (opens in a new tab)
Albert Schweitzer was born into an Alsatian family.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q17
1 · Guesser asks
Was this person French?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person French?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Born a German citizen, Schweitzer had his parents' former pre-1871 French citizenship reinstated, and became a French citizen.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q18
1 · Guesser asks
Was this person associated with existentialism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person associated with existentialism?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
The word “existentialist” could be applied to both [Sartre and Schweitzer].Open daily-philosophy.com (opens in a new tab)
2 · Answer check returns Yes
Q19
1 · Guesser asks
Did this person decline the Nobel Prize in Literature?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person decline the Nobel Prize in Literature?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Nobel Prize in Literature 1952: François Mauriac; Nobel Peace Prize 1952: Albert Schweitzer.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q20
1 · Guesser asks
Was this person associated with Christian or theistic existentialism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person associated with Christian or theistic existentialism?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer was an existentialist thinker.Open jstor.org (opens in a new tab)
Albert Schweitzer was a devout Christian.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q21
1 · Guesser guesses
Gabriel Marcel
French 20th-century philosopher associated with Christian existentialism
Validator rationale The proposed identity is Gabriel Marcel, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French 20th-century philosopher associated with Christian existentialism","name":"Gabriel Marcel","question":null}} 2 · Validator returns No
Q22
1 · Guesser asks
Was this person a Catholic?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a Catholic?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
A lifelong Lutheran, Schweitzer challenged both the secular and traditional Christian views of Jesus.Open uua.org (opens in a new tab)
2 · Answer check returns No
Q23
1 · Guesser asks
Was this person a Protestant?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a Protestant?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
“I am a Protestant, but above all I am a scientist...”Open uua.org (opens in a new tab)
2 · Answer check returns Yes
Q24
1 · Guesser asks
Did this person die in the 21st century?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die in the 21st century?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer (1875-1965) ... died Saturday, Sept. 4, at Lambarene, Gabon.Open mla.bethelks.edu (opens in a new tab)
September 6, 1965 — Albert Schweitzer, 90, Dies at His Hospital.Open archive.nytimes.com (opens in a new tab)
2 · Answer check returns No
Q25
1 · Guesser asks
Was this person born before 1900?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born before 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) was born into an Alsatian family.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q26
1 · Guesser asks
Did this person die in 1950 or later?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die in 1950 or later?"}}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
Q27
1 · Guesser asks
Did this person die before 1980?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die before 1980?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
September 6, 1965 OBITUARY Albert Schweitzer, 90, Dies at His Hospital.Open archive.nytimes.com (opens in a new tab)
Albert Schweitzer (1875–1965)Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns Yes
Q28
1 · Guesser asks
Was this person born in France?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in France?"}}Oracle evidence2 model-reported sources
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)
Albert Schweitzer is born on this day in 1875 in Upper-Alsace, Germany (now Haut-Rhin, France).Open history.com (opens in a new tab)
2 · Answer check returns No
Q29
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 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 ... was born in Kaysersberg, Upper Alsace, Germany (now a part of France).Open ebsco.com (opens in a new tab)
2 · Answer check returns Yes
Q30
1 · Guesser asks
Was this person born in Alsace?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in Alsace?"}}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 a part of France).Open ebsco.com (opens in a new tab)
Albert Schweitzer's birthplace in Kaysersberg, now in Alsace in France.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q31
1 · Guesser asks
Was this person a medical doctor?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a medical doctor?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer went to Lambaréné in 1913 to work as a mission doctor.Open britannica.com (opens in a new tab)
In 1912, now armed with a medical degree, Schweitzer made a definite proposal to go as a physician.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Albert Schweitzer
Alsatian-born theologian, philosopher, and physician known for reverence for life
Validator rationale The proposed identity names Albert Schweitzer and the description matches the trusted subject.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Alsatian-born theologian, philosopher, and physician known for reverence for life","name":"Albert Schweitzer","question":null}} 2 · Validator returns Yes