Round

Round 2

Round 2

Identified Albert Schweitzer in 17 counted questions.

Back to all Albert Schweitzer rounds
Questions
17
Outcome
Solved
Format errors
Errors found View one example
Duration
2m 43s
Round cost
$0.0419 All 18 turns

Format warning

The model sent replies in the wrong format.

The Guesser sent 1 invalid reply. Each one before the question limit used up a counted turn. The model was only reminded of the required format; it was never told whether its question or guess was correct.

Valid format
94.4%
Format errors
1
Turns used by format errors
1

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":"BKXG3AZI"}

Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.

5 of 16 answers in this round reuse an earlier, fully checked answer with its original evidence. No new search or check ran for those turns.

Q1
1 · Guesser reply rejectedTurn counted

Reply in the wrong format.

Invalid action · fixed format reminder sent

Why this reply was rejectedInvalid action · turn 1

The reply was JSON, but it matched neither the ASK nor the GUESS format.

Recorded type
invalid_action
Turn
1
Counted
Yes · question 1
Feedback
FORMAT_ERROR
What the model returnedExact text from the provider
Attempt 1 · finish stop
{"action":"ASK","question":"Is this person a man?"}
What a valid reply looks likeThe same formats shown to the Guesser
ASK
{"result":{"action":"ASK","description":null,"name":null,"question":"<non-empty yes-or-no property question>"}}
GUESS
{"result":{"action":"GUESS","description":"<non-empty identifying description>","name":"<non-empty candidate name>","question":null}}

A reply must match one of these formats exactly. Text fields in use must not be empty; unused fields must be JSON null.

2 · System responseFORMAT
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 evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

Albert Schweitzer — Full name: Albert Schweitzer. Born: 14 January 1875, Kaysersberg, Germany (now France). Died: 4 September 1965, Lambaréné, Gabon.

Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q3
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 evidence2 model-reported sources

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

2 · Answer check returns No
Q4
1 · Guesser asks

Is this person male?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this 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 Peace Prize for 1952 ... was given to him on December 10, 1953. ... Albert Schweitzer died on September 4, 1965. ... Albert Schweitzer ... was born into an Alsatian family ...

Open nobelprize.org (opens in a new tab)
Source 02

Source summary (model-reported)

Albert Schweitzer Nobel Peace Prize 1952 Born: 14 January 1875 ... Role: Missionary surgeon; Founder of Lambaréné ... Together with his wife, who was a nurse, he built and ran a hospital ...

Open nobelprize.org (opens in a new tab)
Source 03

Source summary (model-reported)

Schweitzer, Albert, 1875-1965 ... Biography: Albert Schweitzer (1875-1965), Alsatian theologian, organist, writer, humanitarian, philosopher, and physician.

Open archives.yale.edu (opens in a new tab)
2 · Answer check returns Yes
Q5
1 · Guesser asks

Is this person known primarily as a political leader?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person known primarily as a political leader?"}}
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 “Doctor, Missionary, Philosopher and Musician.”

Open nobelprize.org (opens in a new tab)
Source 02

Source summary (model-reported)

Albert Schweitzer was recognized as an internationally known concert organist, studied medicine, and decided to go to Africa as a medical missionary rather than as a pastor.

Open nobelprize.org (opens in a new tab)
Source 03

Source summary (model-reported)

PBS describes Schweitzer as a renowned medical missionary who founded a hospital in Lambaréné, won the Nobel Peace Prize in 1952, became well known as a musician, and built a reputation as a theologian.

Open pbs.org (opens in a new tab)
2 · Answer check returns No
Q6
1 · Guesser asks

Is this person known for work in science or technology?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person known for work in science or technology?"}}
Oracle evidence3 model-reported sources

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

Source 01
Although he was highly gifted in science, theology, and music and as an author, Schweitzer dedicated the last six decades of his life to medicine and to a hospital he founded with his wife, Helene Breslau, in French Equatorial Africa.
Open press.jhu.edu (opens in a new tab)
Source 02
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 (opens in a new tab)
Source 03

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, French Equatorial Africa.

Open britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q7
1 · Guesser asks

Is this person best known for work in physics?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person best known for work in physics?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

Albert Schweitzer was awarded the Nobel Peace Prize for his philosophy of “reverence for life” and tireless humanitarian work. ... Minister turned doctor in Africa ... Theologian and philosopher ... A skilled musician ... The hospital in Lambaréné became his life’s work.

Open nobelprize.org (opens in a new tab)
Source 03

Source summary (model-reported)

Profession: Doctor of Philosophy, Theology and Medicine. Musician and missionary ... Albert Schweitzer was nominated for his humanitarian work on a religious basis. Originally a student of theology and philosophy, he entered medical school ... and set up a hospital.

Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q8
1 · Guesser asks

Is this person best known for work in biology or medicine?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person best known for work in biology or medicine?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

Albert Schweitzer ... Role: Missionary surgeon; Founder of Lambaréné (République de Gabon) ... He studied theology and became a priest, but that was not enough. He wanted to alleviate suffering, and accordingly studied medicine. Together with his wife, who was a nurse, he built and ran a hospital at the mission station Lambarene in Gabon.

Open nobelprize.org (opens in a new tab)
Source 02

Source summary (model-reported)

Although he was highly gifted in science, theology, and music and as an author, Schweitzer dedicated the last six decades of his life to medicine and to a hospital he founded with his wife ... in Lambaréné, Gabon.

Open press.jhu.edu (opens in a new tab)
Source 03

Source summary (model-reported)

Having decided to go to Africa as a medical missionary rather than as a pastor, Schweitzer in 1905 began the study of medicine at the University of Strasbourg. In 1913, having obtained his M.D.

Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q9
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.

2 · Answer check returns Yes
Q10
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 evidence1 model-reported source

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

2 · Answer check returns Yes
Q11
1 · Guesser asks

Is this person best known for a discovery related to bacteria or antibiotics?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person best known for a discovery related to bacteria or antibiotics?"}}
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 describes Schweitzer as an internationally known concert organist, theologian, author, and medical missionary who studied medicine and went to Africa to establish and operate a hospital.

Open nobelprize.org (opens in a new tab)
Source 02

Source summary (model-reported)

Britannica identifies Albert Schweitzer as an Alsatian-German theologian, philosopher, organist, and mission doctor. It states that his theological work established him as a world figure and that he established a hospital in Lambaréné; it also notes his 1952 Nobel Peace Prize.

Open britannica.com (opens in a new tab)
Source 03

Source summary (model-reported)

PBS describes Schweitzer as a renowned medical missionary, notes that he founded a hospital in Lambaréné, and states that he won the Nobel Peace Prize in 1952.

Open pbs.org (opens in a new tab)
2 · Answer check returns No
Q12
1 · Guesser asks

Did this person receive the Nobel Prize for work related to a vaccine or immunology?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person receive the Nobel Prize for work related to a vaccine or immunology?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

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” ... Role: Missionary surgeon; Founder of Lambaréné.

Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q13
1 · Guesser asks

Did this person win the Nobel Prize in Physiology or Medicine?

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

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

Source 01
Albert Schweitzer – Facts. Albert Schweitzer Nobel Peace Prize 1952. Born: 14 January 1875, Kaysersberg, Germany (now France). Died: 4 September 1965, Lambaréné, Gabon.
Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q14
1 · Guesser asks

Did this person win the Nobel Prize in Chemistry?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person win the Nobel Prize in Chemistry?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

Albert Schweitzer Nobel Peace Prize 1952 ... 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”

Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q15
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 (opens in a new tab)
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 (opens in a new tab)
2 · Answer check returns Yes
Q16
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
Q17
1 · Guesser asks

Was this person a medical doctor who worked as a missionary in Africa?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a medical doctor who worked as a missionary in Africa?"}}
Oracle evidence2 model-reported sources

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

Source 01
Having decided to go to Africa as a medical missionary rather than as a pastor, Schweitzer in 1905 began the study of medicine at the University of Strasbourg. In 1913, having obtained his M.D.
Open nobelprize.org (opens in a new tab)
Source 02

Source summary (model-reported)

Dr. Albert Schweitzer, a renowned medical missionary with a complicated history ... Dr. Schweitzer founded a hospital in Lambaréné, which was situated in what was then known as French Equatorial Africa, and is today ... Gabon.

Open pbs.org (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted

Albert Schweitzer

Alsatian-German doctor, theologian, and musician who founded a hospital in Lambaréné, Gabon, and won the 1952 Nobel Peace Prize

Validator rationale The proposal identifies the same historical person, Albert Schweitzer, with matching biographical details.

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