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 1
Round 1
Identified Albert Schweitzer in 16 counted questions.
Back to all Albert Schweitzer rounds- Questions
- 16
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 5m 0s
- Round cost
- $0.4811 All 17 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":"EAQCORIU"}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 alive today?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person alive today?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer died on September 4, 1965, at the age of 90, in his modest quarters at Lambaréné.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns No
Q2
1 · Guesser asks
Did this person live into the twentieth century?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person live into the twentieth century?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer (January 14, 1875-September 4, 1965).Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q3
1 · Guesser asks
Was this person primarily known for work in the arts or entertainment?
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?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Role: Missionary surgeon; Founder of Lambaréné. Prize motivation: “for his altruism, reverence for life, and tireless humanitarian work.”Open nobelprize.org (opens in a new tab)
He received the 1952 Nobel Prize for Peace for his work on behalf of the “Brotherhood of Nations.” In 1913, he went to Lambaréné, Gabon, where he built and maintained a hospital.Open britannica.com (opens in a new tab)
2 · Answer check returns No
Q4
1 · Guesser asks
Did this person hold a prominent political or government office?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person hold a prominent political or government office?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer was a theologian and philosopher, and served as a physician and musician.Open nobelprize.org (opens in a new tab)
At Lambaréné, Schweitzer was doctor and surgeon in the hospital, pastor of a congregation, administrator of a village, superintendent of buildings and grounds.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q5
1 · Guesser asks
Was this person known for contributions to science or mathematics?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person known for contributions to science or mathematics?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
His fame as a theological scholar rests on The Quest of the Historical Jesus; he was also internationally known as a concert organist and musicologist.Open nobelprize.org (opens in a new tab)
Schweitzer lived his philosophy of “reverence for life” by becoming a medical doctor and establishing a hospital in Lambaréné, where he dedicated himself to philanthropic work.Open britannica.com (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)
2 · Answer check returns No
Q6
1 · Guesser asks
Was this person known for religious leadership or social activism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person known for religious leadership or social activism?"}}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)
At Lambaréné, Schweitzer was doctor and surgeon in the hospital, pastor of a congregation, administrator of a village...Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q7
1 · Guesser asks
Was this person born in the United States?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in the United States?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer was born 14 January 1875, Kaysersberg, Germany (now France).Open nobelprize.org (opens in a new tab)
I was born on 14 January 1875 in Kaysersberg, in Upper Alsace.Open schweitzer.org (opens in a new tab)
2 · Answer check returns No
Q8
1 · Guesser asks
Did this person hold a formal religious role, such as a priest, nun, monk, or religious leader?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person hold a formal religious role, such as a priest, nun, monk, or religious leader?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
In September, 1900, he was ordained at St. Nicholas Church in Strasbourg.Open ebsco.com (opens in a new tab)
In 1899, Schweitzer became a deacon at the church of Saint Nicholas in Strasbourg. In 1900, he was ordained as priest.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q9
1 · Guesser asks
Was this person a Christian religious figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a Christian religious figure?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Before he went to Africa he became widely known ... as a theologian.Open equip.org (opens in a new tab)
Schweitzer ... developed the belief that true Christianity should always work towards a unity of faith and purpose.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q10
1 · Guesser asks
Was this person a woman?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a woman?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer ... was a German polymath ... He was a theologian, organist, musicologist, writer, humanitarian, philosopher, and physician.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns No
Q11
1 · Guesser asks
Was this person a member of the Roman Catholic Church?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person a member of the Roman Catholic Church?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A lifelong Lutheran, Schweitzer challenged both the secular and traditional Christian views of Jesus.Open uua.org (opens in a new tab)
Schweitzer was born in a Lutheran parsonage in Kaysersberg, Upper Alsace.Open encyclopedia.com (opens in a new tab)
2 · Answer check returns No
Q12
1 · Guesser guesses
Desmond Tutu
South African Anglican archbishop and anti-apartheid activist who won the Nobel Peace Prize.
Validator rationale The proposal identifies Desmond Tutu, a different person from Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"South African Anglican archbishop and anti-apartheid activist who won the Nobel Peace Prize.","name":"Desmond Tutu","question":null}} 2 · Validator returns No
Q13
1 · Guesser asks
Was this person born in Europe?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in Europe?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Schweitzer was born in Alsace in the then German Empire.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q14
1 · Guesser asks
Was this person born in what is now Germany or in territory that was then part of Germany?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in what is now Germany or in territory that was then part of Germany?"}}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
Q15
1 · Guesser guesses
Dietrich Bonhoeffer
German Lutheran pastor and theologian who opposed Nazism and was executed in 1945.
Validator rationale The proposal identifies Dietrich Bonhoeffer, whereas the trusted subject is Albert Schweitzer.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German Lutheran pastor and theologian who opposed Nazism and was executed in 1945.","name":"Dietrich Bonhoeffer","question":null}} 2 · Validator returns No
Q16
1 · Guesser guesses
Martin Niemöller
German Lutheran pastor and anti-Nazi dissident known for the statement “First they came …”
Validator rationale The trusted subject is Albert Schweitzer, while the proposal identifies Martin Niemöller, a different person.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German Lutheran pastor and anti-Nazi dissident known for the statement “First they came …”","name":"Martin Niemöller","question":null}} 2 · Validator returns No
G
1 · Guesser guessesNot counted
Albert Schweitzer
Alsace-born theologian, physician, and humanitarian who founded a hospital in Lambaréné and won the Nobel Peace Prize.
Validator rationale The proposed identity names Albert Schweitzer and matches the trusted description, including his medical, theological, humanitarian, Lambaréné hospital, and Nobel Peace Prize associations.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Alsace-born theologian, physician, and humanitarian who founded a hospital in Lambaréné and won the Nobel Peace Prize.","name":"Albert Schweitzer","question":null}} 2 · Validator returns Yes