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 2
Round 2
Identified Albert Schweitzer in 19 counted questions.
Back to all Albert Schweitzer rounds- Questions
- 19
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 13m 10s
- Round cost
- $0.3581 All 20 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":"BKXG3AZI"}Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.
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.
Albert Schweitzer ... Died: 4 September 1965, Lambaréné, GabonOpen nobelprize.org (opens in a new tab)
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.
Died: 4 September 1965, Lambaréné, GabonOpen nobelprize.org (opens in a new tab)
Was the person primarily known as a political, royal, or military leader?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a political, royal, or military leader?"}}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 nobelprize.org (opens in a new tab)
Albert Schweitzer | Alsatian Theologian, Philosopher & PhysicianOpen britannica.com (opens in a new tab)
Was the person male?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person male?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
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)
Was he primarily known for work in science, mathematics, engineering, or technology?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was he primarily known for work in science, mathematics, engineering, or technology?"}}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)
Was he primarily known for work in the arts or entertainment, such as music, film, literature, painting, or acting?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was he primarily known for work in the arts or entertainment, such as music, film, literature, painting, or acting?"}}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)
Was he primarily known as an athlete or sports figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was he 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.
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)
Was he primarily known as a religious or spiritual figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was he primarily known as a religious or spiritual figure?"}}Was he primarily known for involvement in crime or as a criminal figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was he primarily known for involvement in crime or as a criminal figure?"}}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 nobelprize.org (opens in a new tab)
Motivation: Albert Schweitzer was nominated for his humanitarian work on a religious basis... he and his wife set up a hospital.Open nobelprize.org (opens in a new tab)
Was he primarily known for business, finance, industry, or entrepreneurship?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was he primarily known for business, finance, industry, or entrepreneurship?"}}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 a physician, Protestant theologian, organist, and missionary, who was awarded the Nobel Peace Prize for 1952, primarily for his work at his hospital at Lambaréné.Open lbi.org (opens in a new tab)
Did he found a religion or new religious movement?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did he found a religion or new religious movement?"}}Was he primarily known for work in philosophy, psychology, or social theory?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was he primarily known for work in philosophy, psychology, or social theory?"}}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)
Role: Missionary surgeon; Founder of Lambaréné (République de Gabon)Open nobelprize.org (opens in a new tab)
Was he primarily known as an explorer, adventurer, aviator, sailor, mountaineer, or astronaut/cosmonaut?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was he primarily known as an explorer, adventurer, aviator, sailor, mountaineer, or astronaut/cosmonaut?"}}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 nominated for his humanitarian work ... he and his wife set up a hospital in Lambaréné.Open nobelprize.org (opens in a new tab)
Did he die in or after the year 2000?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did he die in or after the year 2000?"}}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)
Was he primarily known for founding or leading an organization or movement?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was he primarily known for founding or leading an organization or movement?"}}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)
Schweitzer ... spent most of his life in Gabon ... where he founded the Lambaréné Hospital in 1913.Open encyclopedia.com (opens in a new tab)
Robert Baden-Powell
British founder of the worldwide Scout Movement.
Validator rationale The proposal identifies Robert Baden-Powell, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"British founder of the worldwide Scout Movement.","name":"Robert Baden-Powell","question":null}}Was the organization he founded or led charitable, humanitarian, educational, or service-oriented?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the organization he founded or led charitable, humanitarian, educational, or service-oriented?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Lambaréné, a hospital and medical mission, was founded and built in 1913 by Dr Schweitzer and his wife Helene.Open nobelprize.org (opens in a new tab)
He became a mission doctor and established a hospital in Lambaréné, French Equatorial Africa, maintained by his income and supplemented by gifts from individuals and foundations.Open britannica.com (opens in a new tab)
Did he receive the Nobel Peace Prize?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did he receive the Nobel Peace 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... Albert Schweitzer received his Nobel Prize one year later, in 1953.Open nobelprize.org (opens in a new tab)
Henry Dunant
Swiss founder of the International Committee of the Red Cross and co-recipient of the first Nobel Peace Prize.
Validator rationale The trusted subject is Albert Schweitzer, while the proposed identity is Henry Dunant; they are different people.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Swiss founder of the International Committee of the Red Cross and co-recipient of the first Nobel Peace Prize.","name":"Henry Dunant","question":null}}Albert Schweitzer
Alsatian physician, theologian, and humanitarian who founded the Lambaréné hospital in Gabon and won the 1952 Nobel Peace Prize.
Validator rationale The proposed identity exactly matches Albert Schweitzer, including his profession, Lambaréné hospital, and 1952 Nobel Peace Prize.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Alsatian physician, theologian, and humanitarian who founded the Lambaréné hospital in Gabon and won the 1952 Nobel Peace Prize.","name":"Albert Schweitzer","question":null}}