Deep20Bench
v1.1Current

Benchmark edition

Edition 1.1 settings

10 subjects3 rounds per subject40 question limit
Question answersYesRather yesRather noNoUnknown
What changed
Source
Menu
Round

Round 3

Round 3

Identified Albert Schweitzer in 25 counted questions.

Back to all Albert Schweitzer rounds
Questions
25
Outcome
Solved
Format errors
No errors
Duration
16m 56s
Round cost
$0.3628 All 26 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.

System message
You are the Guesser in a Twenty Questions benchmark. Identify the hidden subject using as few
counted turns as possible. BEGIN provides only its broad category. The variation_token has no
clues; do not interpret, mention, or repeat it.

The category in BEGIN has a broad meaning:
- person: a real human, living or historical.
- fictional_character: an invented character from a story, book, comic, film, television,
  game, or another fictional work.
- mythological_figure: a figure from mythology or traditional legend.
- video_game_character: a character known from video games.
- thing: a broad category covering natural and human-made entities, living or nonliving,
  whole entities or parts of them. Possibilities include everyday objects, tools, machines,
  materials, food, animals, plants, body parts, natural structures, geographical features,
  celestial bodies, natural phenomena, and concepts. These possibilities are not exhaustive.
  The target may be a general kind or one particular instance.

Use questions to narrow the supplied category. These definitions are not a list of targets.

Use ASK for a factual question that distinguishes candidates. Never use ASK to confirm a
specific identity. Use GUESS with a name and short identifying description to name a candidate.

ASK has five possible replies:
- YES or NO: the evidence establishes that answer to the exact question.
- RATHER_YES or RATHER_NO: evidence leans that way, but is not strong enough for a firm answer.
  Treat this as a clue; keep candidates fitting the opposite answer possible.
- UNKNOWN: no reliable direction. It supports neither answer.

Ask clear questions about verifiable properties. "Can", "sometimes", "usually", "always", and
"mainly" ask different things. Do not assume that one property proves another or rules out alternatives.
Qualified replies express uncertainty about your question, not how often a property applies.
Before narrowing heavily, check your key assumption with a different property. After rejected
guesses, reconsider earlier assumptions as well as candidates. Answers can be mistaken; check
another property when stuck. Do not ignore an answer merely because it conflicts with a
preferred candidate.

Each ASK, rejected GUESS, or format error before the limit costs one turn. A correct GUESS costs
none. After 40 counted turns, make one final GUESS; ASK is then forbidden. Identity
validation uses only YES, NO, or UNKNOWN. UNKNOWN on GUESS ends the game without success.

FORMAT_ERROR means your output broke the contract, was not checked for correctness, and cost
one turn. Retry using its displayed formats if a turn remains. Return only the required JSON
object with exactly one result action. No explanations, reasoning, or extra fields.
BEGIN event
{"category":"person","event":"BEGIN","variation_token":"AMZAISLM"}

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 evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns No
Q2
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 evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

The Nobel Prize facts page identifies Albert Schweitzer as a missionary surgeon, founder of Lambaréné, and the 1952 Nobel Peace Prize laureate; its biography refers to 'his wife, who was a nurse.'

Open nobelprize.org
Source 02

Source summary (model-reported)

The Nobel Prize biographical page describes Albert Schweitzer as a doctor and surgeon, pastor, administrator, writer, commentator, and musician, and uses masculine references including 'him' and 'his.'

Open nobelprize.org
Source 03

Source summary (model-reported)

Albert Schweitzer (1875–1965) was a German polymath from Alsace and is described as a theologian, organist, musicologist, writer, humanitarian, philosopher, and physician.

Open en.wikipedia.org
2 · Answer check returns Yes
Q3
1 · Guesser asks

Was this person primarily known as a political leader or head of government?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a political leader or head of government?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01
Role: Missionary surgeon; Founder of Lambaréné (République de Gabon). Prize motivation: “for his altruism, reverence for life, and tireless humanitarian work...”
Open nobelprize.org
Source 03

Source summary (model-reported)

Albert Schweitzer was internationally known as a concert organist. He studied medicine and went to Africa as a medical missionary; his professional engagements helped finance his education and African hospital.

Open nobelprize.org
2 · Answer check returns No
Q4
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 evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

Albert Schweitzer (born Jan. 14, 1875, Kaysersberg, Upper Alsace, Ger. [now in France]—died Sept. 4, 1965, Lambaréné, Gabon) was an Alsatian-German theologian, philosopher, organist, and mission doctor.

Open britannica.com
2 · Answer check returns Yes
Q5
1 · Guesser asks

Was this person primarily known as a scientist or inventor?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a scientist or inventor?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

Role: Missionary surgeon; Founder of Lambaréné (République de Gabon). Prize motivation: “for his altruism, reverence for life, and tireless humanitarian work...” The page also describes him as a gifted musician and interpreter of Bach.

Open nobelprize.org
Source 02

Source summary (model-reported)

The page characterizes Schweitzer as a theologian who became a doctor in Africa, describes the Lambaréné hospital as his life’s work, and separately identifies him as a skilled musician.

Open nobelprize.org
Source 03

Source summary (model-reported)

The biography describes Schweitzer as an internationally known concert organist, musicologist, medical student and physician, and notes that he went to Africa as a medical missionary.

Open nobelprize.org
2 · Answer check returns No
Q6
1 · Guesser asks

Was this person primarily known as an artist, writer, or musician?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as an artist, writer, or musician?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

NobelPrize.org identifies Albert Schweitzer's role as “Missionary surgeon; Founder of Lambaréné” and says he was also a gifted musician who gave numerous organ concerts to finance the hospital in Africa.

Open nobelprize.org
Source 02

Source summary (model-reported)

Johns Hopkins University Press states that although Schweitzer was highly gifted in science, theology, music, and as an author, he dedicated the last six decades of his life to medicine and to a hospital he founded in French Equatorial Africa.

Open press.jhu.edu
2 · Answer check returns No
Q7
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 evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

NobelPrize.org identifies Albert Schweitzer's role as “Missionary surgeon; Founder of Lambaréné” and describes him as a “Doctor, Missionary, Philosopher and Musician.” It states that he received the Nobel Peace Prize for his altruism, reverence for life, and tireless humanitarian work.

Open nobelprize.org
Source 02

Source summary (model-reported)

The Nobel biography says Schweitzer was internationally known as a concert organist, studied medicine, obtained his M.D., and went to Africa as a medical missionary. It also describes his writing on Bach and organ building and playing.

Open nobelprize.org
Source 03

Source summary (model-reported)

PBS describes Schweitzer as a renowned medical missionary, notes that he founded a hospital in Lambaréné, and says he won the Nobel Peace Prize in 1952. It also describes his theological, philosophical, and musical reputation.

Open pbs.org
2 · Answer check returns No
Q8
1 · Guesser asks

Was this person American?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person American?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

Schweitzer was born on 14 January 1875 in Kaysersberg in Alsace, in what had less than four years previously become the Imperial Territory of Alsace-Lorraine in the German Empire. He later became a citizen of France after World War I, when Alsace became French territory again.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

Born: 14 January 1875, Kaysersberg, Germany (now France) ... Residence at the time of the award: France ... Schweitzer was born in Alsace in the then German Empire.

Open nobelprize.org
2 · Answer check returns No
Q9
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.

Source 01

Source summary (model-reported)

Albert Schweitzer (January 14, 1875-September 4, 1965) was born into an Alsatian family which for generations had been devoted to religion, music, and education.

Open nobelprize.org
Source 02
Schweitzer was born on 14 January 1875 in Kaysersberg in Alsace, in what had less than four years previously become the Imperial Territory of Alsace-Lorraine in the German Empire. He later became a citizen of France after World War I, when Alsace became French territory again.
Open en.wikipedia.org
2 · Answer check returns Yes
Q10
1 · Guesser asks

Was this person primarily known as a military figure?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a military figure?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01
Role: Missionary surgeon; Founder of Lambaréné (République de Gabon). Prize motivation: “for his altruism, reverence for life, and tireless humanitarian work...”
Open nobelprize.org
Source 03

Source summary (model-reported)

At Lambaréné, Schweitzer was doctor and surgeon in the hospital, pastor of a congregation, administrator of a village, writer of scholarly books, and musician.

Open nobelprize.org
2 · Answer check returns No
Q11
1 · Guesser asks

Was this person primarily known as a philosopher or intellectual thinker?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a philosopher or intellectual thinker?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

Role: Missionary surgeon; Founder of Lambaréné (République de Gabon). Prize motivation: “for his altruism, reverence for life, and tireless humanitarian work...” The page also describes him as a gifted musician and identifies “reverence for life” as the key to his personal philosophy.

Open nobelprize.org
Source 02

Source summary (model-reported)

Albert Schweitzer was recognized internationally as a concert organist, wrote works on Bach and organ building, studied medicine, and went to Africa as a medical missionary. The biography presents multiple professional and intellectual roles rather than a single primary identity.

Open nobelprize.org
Source 03

Source summary (model-reported)

Britannica describes Schweitzer as an Alsatian-German theologian, philosopher, organist, and mission doctor, and states that he received the 1952 Nobel Prize for Peace for efforts on behalf of “the Brotherhood of Nations.”

Open britannica.com
2 · Answer check returns Unknown
Q12
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 evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

Born: 14 January 1875, Kaysersberg, Germany (now France) ... Residence at the time of the award: France ... Schweitzer was born in Alsace in the then German Empire.

Open nobelprize.org
2 · Answer check returns No
Q13
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 evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

The Nobel Prize biography lists his role as “Missionary surgeon; Founder of Lambaréné” and says the prize recognized his “altruism, reverence for life, and tireless humanitarian work.” It also states that he studied theology and became a priest before studying medicine and building and running a hospital in Gabon.

Open nobelprize.org
Source 02

Source summary (model-reported)

PBS says that Schweitzer’s name evoked “the very model of a modern, humane physician,” and highlights his hospital at Lambaréné, Nobel Peace Prize, medical and missionary responsibilities, and theological writing that made him a major theologian.

Open pbs.org
Source 03

Source summary (model-reported)

Britannica describes Schweitzer as an Alsatian-German theologian, philosopher, organist, and mission doctor, and says his theological book established him as a world figure in theological studies; it also emphasizes his medical mission and hospital in equatorial Africa.

Open britannica.com
2 · Answer check returns Rather no
Q14
1 · Guesser asks

Was this person German?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person German?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

Britannica describes Albert Schweitzer as an “Alsatian-German theologian and physician” and states that he was born in Kaysersberg, Upper Alsace, Germany (now in France).

Open britannica.com
Source 02

Source summary (model-reported)

The Nobel Prize biography states that Schweitzer was born in Alsace in the then German Empire. It lists his residence at the time of the award as France.

Open nobelprize.org
Source 03

Source summary (model-reported)

The article states that Schweitzer considered himself French and would formally take French citizenship after World War I; it also notes that his mother tongue was Alsatian and that he later wrote mostly in German.

Open mayoclinicproceedings.org
2 · Answer check returns Unknown
Q15
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 evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

Although Schweitzer considered himself French — and would formally take French citizenship after World War I — his mother tongue was Alsatian, and he later wrote mostly in the German language. ... After the end of the war they were released from the camp and the Schweitzers returned home to Alsace and formally changed their nationality to French.

Open mayoclinicproceedings.org
Source 02

Source summary (model-reported)

Schweitzer was born on 14 January 1875 in Kaysersberg in Alsace, in what had less than four years previously become the Imperial Territory of Alsace-Lorraine in the German Empire. He later became a citizen of France after World War I, when Alsace became French territory again.

Open en.wikipedia.org
2 · Answer check returns Yes
Q16
1 · Guesser asks

Was this person primarily known as a businessman, industrialist, or entrepreneur?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a businessman, industrialist, or entrepreneur?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01
Role: Missionary surgeon; Founder of Lambaréné (République de Gabon)... Doctor, Missionary, Philosopher and Musician... He studied theology and became a priest... studied medicine... Together with his wife... he built and ran a hospital at the mission station Lambarene in Gabon.
Open nobelprize.org
Source 02
Albert Schweitzer ... was born into an Alsatian family which for generations had been devoted to religion, music, and education. ... recognized as a concert organist, internationally known... Having decided to go to Africa as a medical missionary rather than as a pastor, Schweitzer in 1905 began the study of medicine.
Open nobelprize.org
2 · Answer check returns No
Q17
1 · Guesser asks

Was this person primarily known as a fashion designer?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a fashion designer?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

NobelPrize.org identifies Albert Schweitzer's role as “Missionary surgeon; Founder of Lambaréné” and describes him as a gifted musician and interpreter of Bach. It also states that he studied theology, became a priest, studied medicine, and built and ran a hospital in Gabon.

Open nobelprize.org
Source 02

Source summary (model-reported)

The Nobel biography describes Schweitzer as an internationally known concert organist, musicologist, author on Bach and organ building, and a medical missionary who studied medicine and earned an M.D.

Open nobelprize.org
Source 03

Source summary (model-reported)

The Nobel Peace Prize site characterizes Albert Schweitzer as a “Doctor, Missionary, Philosopher and Musician” and attributes the prize to his altruism, reverence for life, and tireless humanitarian work.

Open nobelpeaceprize.org
2 · Answer check returns No
Q18
1 · Guesser asks

Was this person born in the 19th century?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in the 19th century?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns Yes
Q19
1 · Guesser asks

Did this person die after 1945?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die after 1945?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns Yes
Q20
1 · Guesser asks

Was this person primarily known as an architect?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as an architect?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

NobelPrize.org identifies Albert Schweitzer's role as “Missionary surgeon; Founder of Lambaréné” and describes him under “Doctor, Missionary, Philosopher and Musician.”

Open nobelprize.org
Source 02

Source summary (model-reported)

The Nobel Peace Prize site describes Schweitzer as “Doctor, Missionary, Philosopher and Musician,” noting that he studied medicine and built and ran a hospital in Gabon.

Open nobelpeaceprize.org
Source 03

Source summary (model-reported)

The biographical account describes Schweitzer's activities as doctor and surgeon, pastor, administrator, writer, commentator, and musician; it does not identify him as an architect.

Open nobelprize.org
2 · Answer check returns No
Q21
1 · Guesser asks

Was this person primarily known as a scholar or academic in the humanities or social sciences?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a scholar or academic in the humanities or social sciences?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

Role: Missionary surgeon; Founder of Lambaréné (République de Gabon). ... Albert Schweitzer ... studied theology and became a priest ... studied medicine ... built and ran a hospital at the mission station Lambarene in Gabon.

Open nobelprize.org
Source 02

Source summary (model-reported)

From his young manhood to his middle eighties, [he was] recognized as a concert organist, internationally known. ... Musicologist as well as performer ... Having decided to go to Africa as a medical missionary rather than as a pastor, Schweitzer ... began the study of medicine.

Open nobelprize.org
Source 03

Source summary (model-reported)

Profession: Doctor of Philosophy, Theology and Medicine. Musician and missionary. ... Originally a student of theology and philosophy, he entered medical school in 1905 in order to qualify as a mission doctor in Gabon.

Open nobelprize.org
2 · Answer check returns No
Q22
1 · Guesser asks

Did this person die before 1960?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die before 1960?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns No
Q23
1 · Guesser asks

Did this person win a Nobel Prize?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person win a Nobel Prize?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

Albert Schweitzer ... Prize motivation: “for his altruism, reverence for life, and tireless humanitarian work which has helped making the idea of brotherhood between men and nations a living one” ... Albert Schweitzer received his Nobel Prize one year later, in 1953. Prize share: 1/1

Open nobelprize.org
2 · Answer check returns Yes
Q24
1 · Guesser asks

Did this person win the Nobel Peace Prize?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person win the Nobel Peace Prize?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns Yes
Q25
1 · Guesser asks

Was this person a medical doctor or physician?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a medical doctor or physician?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

Albert Schweitzer ... was an Alsatian-German theologian, philosopher, organist, and mission doctor in equatorial Africa ... In 1905, he became a mission doctor and established a hospital in Lambaréné.

Open britannica.com
Source 03

Source summary (model-reported)

At Lambaréné, Schweitzer was doctor and surgeon in the hospital, pastor of a congregation, administrator of a village, superintendent of buildings and grounds, writer of scholarly books, commentator on contemporary history, musician, host to countless visitors.

Open nobelprize.org
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted

Albert Schweitzer

Alsatian-born physician, theologian and humanitarian who founded a hospital in Gabon and received the 1952 Nobel Peace Prize

Validator rationale The proposal names Albert Schweitzer and matches the defining biographical details of the specified historical person.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Alsatian-born physician, theologian and humanitarian who founded a hospital in Gabon and received the 1952 Nobel Peace Prize","name":"Albert Schweitzer","question":null}}
2 · Validator returns Yes