Deep20Bench
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Benchmark edition

Edition 1.1 settings

10 subjects3 rounds per subject40 question limit
Question answersYesRather yesRather noNoUnknown
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Round

Round 1

Round 1

Identified Albert Einstein in 9 counted questions.

Back to all Albert Einstein rounds
Questions
9
Outcome
Solved
Format errors
No errors
Duration
1m 18s
Round cost
$0.1455 All 10 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.

System message
You are the Guesser in a Twenty Questions benchmark. Identify the hidden subject using as few
counted turns as possible. BEGIN provides only its broad category. The variation_token has no
clues; do not interpret, mention, or repeat it.

The category in BEGIN has a broad meaning:
- person: a real human, living or historical.
- fictional_character: an invented character from a story, book, comic, film, television,
  game, or another fictional work.
- mythological_figure: a figure from mythology or traditional legend.
- video_game_character: a character known from video games.
- thing: a broad category covering natural and human-made entities, living or nonliving,
  whole entities or parts of them. Possibilities include everyday objects, tools, machines,
  materials, food, animals, plants, body parts, natural structures, geographical features,
  celestial bodies, natural phenomena, and concepts. These possibilities are not exhaustive.
  The target may be a general kind or one particular instance.

Use questions to narrow the supplied category. These definitions are not a list of targets.

Use ASK for a factual question that distinguishes candidates. Never use ASK to confirm a
specific identity. Use GUESS with a name and short identifying description to name a candidate.

ASK has five possible replies:
- YES or NO: the evidence establishes that answer to the exact question.
- RATHER_YES or RATHER_NO: evidence leans that way, but is not strong enough for a firm answer.
  Treat this as a clue; keep candidates fitting the opposite answer possible.
- UNKNOWN: no reliable direction. It supports neither answer.

Ask clear questions about verifiable properties. "Can", "sometimes", "usually", "always", and
"mainly" ask different things. Do not assume that one property proves another or rules out alternatives.
Qualified replies express uncertainty about your question, not how often a property applies.
Before narrowing heavily, check your key assumption with a different property. After rejected
guesses, reconsider earlier assumptions as well as candidates. Answers can be mistaken; check
another property when stuck. Do not ignore an answer merely because it conflicts with a
preferred candidate.

Each ASK, rejected GUESS, or format error before the limit costs one turn. A correct GUESS costs
none. After 40 counted turns, make one final GUESS; ASK is then forbidden. Identity
validation uses only YES, NO, or UNKNOWN. UNKNOWN on GUESS ends the game without success.

FORMAT_ERROR means your output broke the contract, was not checked for correctness, and cost
one turn. Retry using its displayed formats if a turn remains. Return only the required JSON
object with exactly one result action. No explanations, reasoning, or extra fields.
BEGIN event
{"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.

6 of 9 answers in this round reuse an earlier, fully checked answer with its original evidence. No new search or check ran for those turns.

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 evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns No
Q2
1 · Guesser asks

Was this person born before 1800?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born before 1800?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns No
Q3
1 · Guesser asks

Is this person best known for work in the arts or entertainment?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person best 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.

Source 02

Source summary (model-reported)

He developed the general theory of relativity... In 1921 he received the Nobel Prize in Physics for his “services to theoretical physics”, and in particular his discovery of the photoelectric effect.

Open alberteinstein.com
2 · Answer check returns No
Q4
1 · Guesser asks

Is this person primarily known for political leadership or military service?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person primarily known for political leadership or military service?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

Einstein emigrated to America to take the position of Professor of Theoretical Physics at Princeton. After World War II, he was a leading figure in the World Government Movement, was offered the Presidency of the State of Israel, which he declined, and collaborated in establishing the Hebrew University of Jerusalem.

Open nobelprize.org
Source 03

Source summary (model-reported)

The Smithsonian describes Albert Einstein as a world-renowned scientist whose theory of relativity transformed physics, while also noting that he was an influential civil rights activist.

Open si.edu
2 · Answer check returns No
Q5
1 · Guesser asks

Is this person best known for contributions to science, medicine, or mathematics?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this person best known for contributions to science, medicine, or mathematics?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

Albert Einstein was a famous physicist. His research spanned from quantum mechanics to theories about gravity and motion. He is best known for his equation E = mc2 and his explanation of the photoelectric effect.

Open britannica.com
Source 03

Source summary (model-reported)

The Nobel Prize biography describes Einstein's work on special and general relativity, quantum theory, statistical mechanics, Brownian motion, the photon theory of light, and relativistic cosmology.

Open nobelprize.org
2 · Answer check returns Yes
Q6
1 · Guesser asks

Did this person's most famous work concern physics?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person's most famous work concern physics?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

Albert Einstein was a theoretical physicist... He developed the general theory of relativity, one of the two pillars of modern physics... He is perhaps best known... for his mass/energy equivalence formula E=mc2.

Open alberteinstein.com
Source 02

Source summary (model-reported)

Albert Einstein... was a German-born theoretical physicist best known for developing the theory of relativity. Einstein also made important contributions to quantum theory.

Open en.wikipedia.org
Source 03

Source summary (model-reported)

Albert Einstein was a famous physicist. His research spanned from quantum mechanics to theories about gravity and motion... Albert Einstein’s greatest discovery is most likely the general theory of relativity.

Open britannica.com
2 · Answer check returns Yes
Q7
1 · Guesser asks

Did this person receive a Nobel Prize?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person receive a Nobel Prize?"}}
Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

The Nobel Prize in Physics 1921 was awarded to Albert Einstein "for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect" ... Albert Einstein received his Nobel Prize one year later, in 1922.

Open nobelprize.org
2 · Answer check returns Yes
Q8
1 · Guesser asks

Was this person born in what is now Germany?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this person born in what is now Germany?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns Yes
Q9
1 · Guesser asks

Did this person move to the United States and become a U.S. citizen?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this person move to the United States and become a U.S. citizen?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

In the 1930s, in the face of personal attacks from the Nazi movement, Einstein left Germany for the United States. Einstein was granted permanent residency in the United States in 1935 and became an American citizen in 1940, although he chose to retain his Swiss citizenship.

Open britannica.com
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted

Albert Einstein

German-born theoretical physicist who developed the theory of relativity and won the 1921 Nobel Prize in Physics.

Validator rationale The proposal identifies the same historical person, Albert Einstein, matching the specified identity and description.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German-born theoretical physicist who developed the theory of relativity and won the 1921 Nobel Prize in Physics.","name":"Albert Einstein","question":null}}
2 · Validator returns Yes