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 3
Round 3
Did not identify Albert Schweitzer after 50 counted questions.
Back to all Albert Schweitzer rounds- Questions
- 50 Scored as 51
- Outcome
- Question limit reached
- Format errors
- No errors
- Duration
- 1h 49m
- Round cost
- $2.2582 All 51 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":"AMZAISLM"}Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.
Is the person alive?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person alive?"}}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, Lambaréné, GabonOpen nobelprize.org (opens in a new tab)
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.
A complex man, to be sure, but his...Open ihpi.umich.edu (opens in a new tab)
Was the person a head of state or government leader?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person a head of state or government leader?"}}Was the person a scientist?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person a scientist?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Doctor, Missionary, Philosopher and MusicianOpen nobelprize.org (opens in a new tab)
Profession: Doctor of Philosophy, Theology and Medicine. Musician and missionaryOpen nobelprize.org (opens in a new tab)
Was the person a writer?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person a writer?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer ... was ... a theologian, organist, philosopher, physician, and medical missionary in Africa ... and wrote in French.Open openroadmedia.com (opens in a new tab)
Schweitzer, Albert, Christianity and the Religions of the World.Open nobelprize.org (opens in a new tab)
Was the person born before 1900?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person born before 1900?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer — Born: 14 January 1875, Kaysersberg, Germany (now France)Open nobelprize.org (opens in a new tab)
Was the person born in the 19th century?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person born in the 19th century?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer — Born: 14 January 1875, Kaysersberg, Germany (now France).Open nobelprize.org (opens in a new tab)
Did the person die before 1901?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person die before 1901?"}}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)
Is the person American?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person American?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
During World War I Schweitzer and his wife, though French, were interned in France as German subjects.Open kids.britannica.com (opens in a new tab)
Schweitzer considered himself French — and would formally take French citizenship after World War I.Open mayoclinicproceedings.org (opens in a new tab)
Did the person win a Nobel Prize in Literature?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person win a 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)
Did the person write primarily in English?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person write primarily in English?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
He considered himself French and wrote in French.Open openroadmedia.com (opens in a new tab)
All are English translations from French or German.Open home.pcisys.net (opens in a new tab)
Is the person Russian?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person Russian?"}}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)
Although Schweitzer considered himself French — and would formally take French citizenship after World War I — his mother tongue was Alsatian.Open mayoclinicproceedings.org (opens in a new tab)
Is the person French?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person French?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer considered himself French and would formally take French citizenship after World War I.Open mayoclinicproceedings.org (opens in a new tab)
Dr. Schweitzer was German and French.Open interlochenpublicradio.org (opens in a new tab)
Was the subject known for writing science fiction?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the subject known for writing science fiction?"}}Émile Zola
French novelist and leading figure of literary Naturalism, author of Les Rougon-Macquart series
Validator rationale The proposal identifies Émile Zola, a French novelist, whereas the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French novelist and leading figure of literary Naturalism, author of Les Rougon-Macquart series","name":"Émile Zola","question":null}}Jules Verne
French author and pioneer of science fiction, known for adventure novels like Twenty Thousand Leagues Under the Sea and Around the World in Eighty Days
Validator rationale The proposed identity is Jules Verne, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French author and pioneer of science fiction, known for adventure novels like Twenty Thousand Leagues Under the Sea and Around the World in Eighty Days","name":"Jules Verne","question":null}}Marcel Proust
French novelist and author of the monumental work In Search of Lost Time
Validator rationale The proposal identifies Marcel Proust, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French novelist and author of the monumental work In Search of Lost Time","name":"Marcel Proust","question":null}}Was the person primarily known as a poet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a poet?"}}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 the person born before 1850?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person born before 1850?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer — Born: 14 January 1875, Kaysersberg, Germany (now France)Open nobelprize.org (opens in a new tab)
André Gide
French novelist and essayist, winner of the 1947 Nobel Prize in Literature
Validator rationale The proposal identifies André Gide, a French novelist and 1947 Nobel Literature laureate, not Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French novelist and essayist, winner of the 1947 Nobel Prize in Literature","name":"André Gide","question":null}}Was the person known for creating a fictional gentleman thief character?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person known for creating a fictional gentleman thief character?"}}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; he was a minister, doctor, theologian, and philosopher.Open nobelprize.org (opens in a new tab)
Maurice Leblanc created “L’Arrestation d’Arsène Lupin”; Lupin appeared in more than 60 of Leblanc’s crime novels and short stories.Open britannica.com (opens in a new tab)
Gaston Leroux
French author of detective novels including The Phantom of the Opera and The Mystery of the Yellow Room
Validator rationale The proposal identifies Gaston Leroux, a French author, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French author of detective novels including The Phantom of the Opera and The Mystery of the Yellow Room","name":"Gaston Leroux","question":null}}Was the person known for writing novels?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person known for writing novels?"}}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 the person primarily known as a playwright?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a playwright?"}}Oracle evidence1 model-reported source
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)
Was the person primarily known for writing essays?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known for writing essays?"}}Oracle evidence1 model-reported source
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)
Did the person write fiction?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person write fiction?"}}Alphonse Allais
French humorist and writer known for his comedic newspaper columns and short stories
Validator rationale The proposal identifies Alphonse Allais, a French humorist and writer, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French humorist and writer known for his comedic newspaper columns and short stories","name":"Alphonse Allais","question":null}}Marcel Schwob
French Symbolist writer and literary critic, known for short stories and the collection Le Roi au masque d'or
Validator rationale The proposal identifies Marcel Schwob, a French writer, while the trusted subject is Albert Schweitzer, a physician, theologian, and Nobel Peace Prize laureate.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French Symbolist writer and literary critic, known for short stories and the collection Le Roi au masque d'or","name":"Marcel Schwob","question":null}}Albert Londres
French investigative journalist known for his coverage of major 20th-century events and champion of truth in reporting
Validator rationale The proposal names Albert Londres, a different person from Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French investigative journalist known for his coverage of major 20th-century events and champion of truth in reporting","name":"Albert Londres","question":null}}Did the person write short stories?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person write short stories?"}}Émile Durkheim
French sociologist and founding figure of modern sociology, author of works such as The Division of Labour in Society and Suicide
Validator rationale The proposal identifies Émile Durkheim, a French sociologist, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French sociologist and founding figure of modern sociology, author of works such as The Division of Labour in Society and Suicide","name":"Émile Durkheim","question":null}}Maurice Barrès
French writer, journalist, and nationalist politician, author of the Le Culte du Moi trilogy
Validator rationale The proposal identifies Maurice Barrès, a French writer and politician, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French writer, journalist, and nationalist politician, author of the Le Culte du Moi trilogy","name":"Maurice Barrès","question":null}}Jules Lemaître
French literary critic and writer, known for his doctrine of 'la mesure française' and contributions to the Revue bleue
Validator rationale The proposal identifies Jules Lemaître, a French literary critic, not Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French literary critic and writer, known for his doctrine of 'la mesure française' and contributions to the Revue bleue","name":"Jules Lemaître","question":null}}Paul Léautaud
French writer and literary critic, best known for his intimate literary journal
Validator rationale The trusted subject is Albert Schweitzer, while the proposed identity is Paul Léautaud, a different person.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French writer and literary critic, best known for his intimate literary journal","name":"Paul Léautaud","question":null}}Was the person primarily known as a historian?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person primarily known as a historian?"}}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)
(1875-1965), Physician, musician and philosopherOpen npg.org.uk (opens in a new tab)
Jean Jaurès
French socialist leader, historian, and writer
Validator rationale The proposal identifies Jean Jaurès, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French socialist leader, historian, and writer","name":"Jean Jaurès","question":null}}Jules Renard
French writer known for his literary journal and short works like Poil de carotte
Validator rationale The proposal identifies Jules Renard, a French writer, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French writer known for his literary journal and short works like Poil de carotte","name":"Jules Renard","question":null}}Maurice Blondel
French philosopher known for his work on the interaction between thought and action, author of L'Action (1893)
Validator rationale The proposal identifies Maurice Blondel, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French philosopher known for his work on the interaction between thought and action, author of L'Action (1893)","name":"Maurice Blondel","question":null}}Henri Poincaré
French mathematician, theoretical scientist, and author of influential popular science books including Science and Hypothesis
Validator rationale The proposal identifies Henri Poincaré, a different person from the trusted subject Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French mathematician, theoretical scientist, and author of influential popular science books including Science and Hypothesis","name":"Henri Poincaré","question":null}}Charles Maurras
French author, journalist, and political theorist, co-founder of the Action Française royalist movement
Validator rationale The proposal identifies Charles Maurras, whereas the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French author, journalist, and political theorist, co-founder of the Action Française royalist movement","name":"Charles Maurras","question":null}}Raymond Poincaré
French statesman, President of France (1913–1920), and author of political memoirs such as Au service de la France
Validator rationale The proposal identifies Raymond Poincaré, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French statesman, President of France (1913–1920), and author of political memoirs such as Au service de la France","name":"Raymond Poincaré","question":null}}Pierre Loti
French naval officer and novelist known for exotic travel literature such as Pêcheur d'Islande and Madame Chrysanthème
Validator rationale The proposal identifies Pierre Loti, a French naval officer and novelist, not Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French naval officer and novelist known for exotic travel literature such as Pêcheur d'Islande and Madame Chrysanthème","name":"Pierre Loti","question":null}}Henri Bergson
French philosopher and writer, recipient of the 1927 Nobel Prize in Literature, author of works such as Time and Free Will and Creative Evolution
Validator rationale The proposal identifies Henri Bergson, a different person from Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French philosopher and writer, recipient of the 1927 Nobel Prize in Literature, author of works such as Time and Free Will and Creative Evolution","name":"Henri Bergson","question":null}}Jean de Brunhoff
French writer and illustrator best known for creating the Babar children's book series
Validator rationale The trusted subject is Albert Schweitzer, while the proposal identifies Jean de Brunhoff, a different person.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French writer and illustrator best known for creating the Babar children's book series","name":"Jean de Brunhoff","question":null}}Willy
French writer, journalist and art critic, born Henri Gauthier-Villars, known for novles, plays, essays and criticisms
Validator rationale The proposal describes Willy (Henri Gauthier-Villars), a French writer and critic, not Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French writer, journalist and art critic, born Henri Gauthier-Villars, known for novles, plays, essays and criticisms","name":"Willy","question":null}}Paul Bourget
French novelist and critic known for psychological novels such as Le Disciple
Validator rationale The proposal identifies Paul Bourget, a French novelist and critic, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French novelist and critic known for psychological novels such as Le Disciple","name":"Paul Bourget","question":null}}Was the person born after 1850?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person born after 1850?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer — Born: 14 January 1875, Kaysersberg, Germany (now France).Open nobelprize.org (opens in a new tab)
Émile Faguet
French writer, critic and literary historian known for his literary portraits and works on 19th century French literature
Validator rationale The proposal identifies Émile Faguet, a French writer and literary critic, not Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French writer, critic and literary historian known for his literary portraits and works on 19th century French literature","name":"Émile Faguet","question":null}}Henri Barbusse
French novelist known for his World War I novel Under Fire (Le Feu)
Validator rationale The proposal identifies Henri Barbusse, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French novelist known for his World War I novel Under Fire (Le Feu)","name":"Henri Barbusse","question":null}}Was the person a journalist?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person a journalist?"}}Remy de Gourmont
French Symbolist writer, poet and critic known for works like Le Livre des masques and Le Joujou patriotique
Validator rationale The proposal identifies Remy de Gourmont, while the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French Symbolist writer, poet and critic known for works like Le Livre des masques and Le Joujou patriotique","name":"Remy de Gourmont","question":null}}