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 27 counted questions.
Back to all Albert Schweitzer rounds- Questions
- 27
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 11m 15s
- Round cost
- $0.5916 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":"BYOMPCJW"}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 Born 14 January 1875... Died 4 September 1965.Open nobelprize.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 (1875-1965) ... Existence: 1875-01-04 - 1965-09-04Open archives.yale.edu (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Did this person die before the year 1900?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die before the year 1900?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer — Born: 14 January 1875. Died: 4 September 1965.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q4
1 · Guesser asks
Was this person primarily known for work in politics or government?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known for work in politics or government?"}}Oracle evidence3 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)
The mere mention of the name Schweitzer instantly conjured up images of selflessness, heroism and the very model of a modern, humane physician.Open pbs.org (opens in a new tab)
Doctor Won Nobel Peace Prize for Work in Africa He Was Also Noted as Musician and Theologian.Open nytimes.com (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 (e.g., music, film, literature)?
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)?"}}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 altruism, reverence for life, and tireless humanitarian work.Open nobelpeaceprize.org (opens in a new tab)
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.Open press.jhu.edu (opens in a new tab)
2 · Answer check returns No
Q6
1 · Guesser asks
Was this person primarily known as a scientist or for scientific work?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a scientist or for scientific work?"}}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 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. He was a theologian and philosopher who later became a doctor in Africa.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q7
1 · Guesser asks
Was this person primarily known as an athlete or for sports?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as an athlete or for sports?"}}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. Minister turned doctor in Africa; theologian and philosopher.Open nobelprize.org (opens in a new tab)
Doctor Won Nobel Peace Prize for Work in Africa He Was Also Noted as Musician and Theologian.Open nytimes.com (opens in a new tab)
2 · Answer check returns No
Q8
1 · Guesser asks
Was this person primarily known for business or entrepreneurship?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known for business or entrepreneurship?"}}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)
Dr. Albert Schweitzer, a renowned medical missionary... founded a hospital in Lambaréné.Open pbs.org (opens in a new tab)
2 · Answer check returns No
Q9
1 · Guesser asks
Was this person primarily known as a religious figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person primarily known as a religious figure?"}} 2 · Answer check returns Unknown
Q10
1 · Guesser asks
Was this person known for activism or leading a social movement?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person known for activism or leading a social movement?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer in all of his facets ... as a ... political activist.Open academic.oup.com (opens in a new tab)
The respect of the Nobel Prize Laureate for all life made him issue his warning against nuclear tests and the dangers from radioactive fall-out.Open nobelpeaceprize.org (opens in a new tab)
2 · Answer check returns Yes
Q11
1 · Guesser asks
Was this person a man?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a man?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
A complex man, to be sure, but his humanitarianism did affect the lives of many patients.Open pbs.org (opens in a new tab)
2 · Answer check returns Yes
Q12
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.
Albert Schweitzer (German-French theologian, musician, philosopher, and physician)Open media.un.org (opens in a new tab)
Albert Schweitzer was born in Alsace in 1875, a few years after this province had become part of the German Empire.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q13
1 · Guesser guesses
Mahatma Gandhi
Indian independence leader known for nonviolent civil disobedience
Validator rationale The proposal identifies Mahatma Gandhi, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Indian independence leader known for nonviolent civil disobedience","name":"Mahatma Gandhi","question":null}} 2 · Validator returns No
Q14
1 · Guesser asks
Was this person from Africa?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person from 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) ... Residence at the time of the award: France.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q15
1 · Guesser asks
Was this person from Asia?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person from Asia?"}}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
Q16
1 · Guesser asks
Was this person from Europe?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person from 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
Q17
1 · Guesser asks
Did this person die after the year 1950?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die after the year 1950?"}}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 Yes
Q18
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.
Although Schweitzer considered himself French — and would formally take French citizenship after World War IOpen mayoclinicproceedings.org (opens in a new tab)
2 · Answer check returns Yes
Q19
1 · Guesser asks
Was this person a Catholic priest?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a Catholic priest?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer, an ordained Lutheran ministerOpen peninsuladailynews.com (opens in a new tab)
Ordained as a Lutheran pastorOpen churchtimes.co.uk (opens in a new tab)
2 · Answer check returns No
Q20
1 · Guesser asks
Was this person known for environmental activism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person known for environmental activism?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer is celebrated ... as a catalyst of environmental and peace activism.Open barnesandnoble.com (opens in a new tab)
2 · Answer check returns Yes
Q21
1 · Guesser guesses
Jacques Cousteau
French ocean explorer, filmmaker, and marine conservation advocate
Validator rationale The proposal identifies Jacques Cousteau, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French ocean explorer, filmmaker, and marine conservation advocate","name":"Jacques Cousteau","question":null}} 2 · Validator returns No
Q22
1 · Guesser guesses
Pierre Rabhi
French farmer, writer, and pioneer of agroecology who founded the Colibris movement
Validator rationale The proposal identifies Pierre Rabhi, a different person from Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French farmer, writer, and pioneer of agroecology who founded the Colibris movement","name":"Pierre Rabhi","question":null}} 2 · Validator returns No
Q23
1 · Guesser asks
Did this person run in a French presidential election?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person run in a French presidential election?"}} 2 · Answer check returns Unknown
Q24
1 · Guesser asks
Did this person die after the year 2000?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person die after the year 2000?"}}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)
2 · Answer check returns No
Q25
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.
He was ordained to the Lutheran ministry and became a preacher and a lecturer in philosophy.Open justus.anglican.org (opens in a new tab)
2 · Answer check returns Yes
Q26
1 · Guesser guesses
Jacques Ellul
French Protestant philosopher, sociologist, and theologian known for his critique of technology and pioneering environmental thought
Validator rationale The proposal identifies Jacques Ellul, a different person from the trusted subject Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French Protestant philosopher, sociologist, and theologian known for his critique of technology and pioneering environmental thought","name":"Jacques Ellul","question":null}} 2 · Validator returns No
Q27
1 · Guesser guesses
Théodore Monod
French naturalist, desert explorer, Protestant humanist, and environmental and pacifist activist who died in 2000
Validator rationale The proposal identifies Théodore Monod, a different person from Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French naturalist, desert explorer, Protestant humanist, and environmental and pacifist activist who died in 2000","name":"Théodore Monod","question":null}} 2 · Validator returns No
G
1 · Guesser guessesNot counted
Albert Schweitzer
Alsatian-French theologian, physician, and humanitarian known for his 'Reverence for Life' philosophy and his hospital in Lambaréné, Gabon
Validator rationale The proposed identity exactly matches Albert Schweitzer, including the distinctive Lambaréné hospital and theological, medical, and humanitarian work.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Alsatian-French theologian, physician, and humanitarian known for his 'Reverence for Life' philosophy and his hospital in Lambaréné, Gabon","name":"Albert Schweitzer","question":null}} 2 · Validator returns Yes