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
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
- 3m 50s
- Round cost
- $0.1618 All 18 turns
Format warning
The model sent replies in the wrong format.
The Guesser sent 2 invalid replies. 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
- 88.9%
- Format errors
- 2
- Turns used by format errors
- 2
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.
Q1
1 · Guesser asks
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.
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)
2 · Answer check returns Yes
Q2
1 · Guesser asks
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)
2 · Answer check returns No
Q3
1 · Guesser asks
Did the person receive a Nobel Prize?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person receive a Nobel Prize?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer Nobel Peace Prize 1952.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Is the person known for formulating the equation E = mc^2?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person known for formulating the equation E = mc^2?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Einstein is best known for his equation E = mc².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
Q5
1 · Guesser asks
Did the person win the Nobel Prize in Physics?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person win the Nobel Prize in Physics?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Nobel Peace Prize 1952 — Albert Schweitzer “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.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q6
1 · Guesser asks
Did the person win the Nobel Prize in Physiology or Medicine?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the 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.
Nobel Prize in Physiology or Medicine 1952 — Selman A. Waksman ... Nobel Peace Prize 1952 — Albert SchweitzerOpen nobelprize.org (opens in a new tab)
The Nobel Peace Prize 1952 was awarded to Albert SchweitzerOpen nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q7
1 · Guesser asks
Did the person win the Nobel Prize in Chemistry?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person win the Nobel Prize in Chemistry?"}} 2 · Answer check returns Unknown
Q8
1 · Guesser asks
Did the person win the Nobel Prize in Literature?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person win the Nobel Prize in 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 philosophy of “reverence for life” and tireless humanitarian work.Open nobelprize.org (opens in a new tab)
Nominated for the Nobel Prize in Literature 1952, by Nils Ahnlund.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q9
1 · Guesser asks
Did the person win the Nobel Peace Prize?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person win 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.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q10
1 · Guesser asks
Was the person a United States President?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person a United States President?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The National Archives' list of U.S. presidents begins with George Washington and enumerates the presidents in office; Albert Schweitzer is not included.Open archives.gov (opens in a new tab)
Albert Schweitzer is documented as the 1952 Nobel Peace Prize laureate, not as a U.S. president.Open nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q11
1 · Guesser asks
Did the person receive the Nobel Peace prize before 1970?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person receive the Nobel Peace prize before 1970?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Schweitzer received his Nobel Prize one year later, in 1953.Open nobelprize.org (opens in a new tab)
2 · Answer check returns Yes
Q12
1 · Guesser reply rejectedTurn counted
Reply in the wrong format.
Output limit exceeded · fixed format reminder sent
Why this reply was rejectedOutput limit exceeded · turn 12
The reply hit the output length limit before it was complete.
- Recorded type
output_limit_exceeded- Turn
- 12
- Counted
- Yes · question 12
- Feedback
- FORMAT_ERROR
The provider returned no text.
{"result":{"action":"ASK","description":null,"name":null,"question":"<non-empty yes-or-no property question>"}}{"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
Q13
1 · Guesser asks
Is the person known for civil rights activism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person known for civil rights activism?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
He is known for his charitable work including opening a hospital in Africa.Open interlochenpublicradio.org (opens in a new tab)
Doctor, Missionary, Philosopher and Musician ... tireless humanitarian workOpen nobelprize.org (opens in a new tab)
2 · Answer check returns No
Q14
1 · Guesser asks
Is the person a chemist?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person a chemist?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Profession: Doctor of Philosophy, Theology and Medicine. Musician and missionaryOpen nobelprize.org (opens in a new tab)
(1875-1965), Physician, musician and philosopherOpen npg.org.uk (opens in a new tab)
2 · Answer check returns No
Q15
1 · Guesser asks
Did the person co‑found the International Committee of the Red Cross?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person co‑found the International Committee of the Red Cross?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The five founders of the ICRC: Gustave Moynier, Théodore Maunoir, Guillaume Dufour, Henry Dunant, and Louis Appia.Open avarchives.icrc.org (opens in a new tab)
This commission – made up of Gustave Moynier, Guillaume-Henri Dufour, Louis Appia, Théodore Maunoir and Dunant himself – founded the International Committee for Relief to the Wounded, which later became the International Committee of the Red Cross (ICRC).Open blogs.icrc.org (opens in a new tab)
2 · Answer check returns No
Q16
1 · Guesser reply rejectedTurn counted
Reply in the wrong format.
Output limit exceeded · fixed format reminder sent
Why this reply was rejectedOutput limit exceeded · turn 16
The reply hit the output length limit before it was complete.
- Recorded type
output_limit_exceeded- Turn
- 16
- Counted
- Yes · question 16
- Feedback
- FORMAT_ERROR
The provider returned no text.
{"result":{"action":"ASK","description":null,"name":null,"question":"<non-empty yes-or-no property question>"}}{"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
Q17
1 · Guesser asks
Did the person establish a hospital in Lambaréné?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person establish a hospital in Lambaréné?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Lambaréné in the heart of equatorial Africa. 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)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Albert Schweitzer
German-French physician, theologian, and humanitarian who founded the Hôpital Albert Schweitzer in Lambaréné 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":"German-French physician, theologian, and humanitarian who founded the Hôpital Albert Schweitzer in Lambaréné and won the 1952 Nobel Peace Prize.","name":"Albert Schweitzer","question":null}} 2 · Validator returns Yes