Deep20Bench
v1.1Current

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 Moon in 10 counted questions.

Back to all Moon rounds
Questions
10
Outcome
Solved
Format errors
No errors
Duration
2m 21s
Round cost
$0.0416 All 11 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":"thing","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 the target a living organism?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target a living organism?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns No
Q2
1 · Guesser asks

Is it made or substantially modified by humans?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it made or substantially modified by humans?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

Earth’s Moon was born out of destruction. ... about 4.5 billion years ago, something ― perhaps a single object the size of Mars, perhaps a series of objects ― crashed into the young Earth and flung enough molten and vaporized debris into space to create the Moon. ... Surface reflectors placed on the Moon during Apollo show that the Moon moves away from Earth...

Open science.nasa.gov
Source 02

Source summary (model-reported)

The Moon is Earth's only natural satellite. ... The Moon likely formed after a Mars-sized body collided with Earth several billion years ago. The resulting debris from both Earth and the impactor accumulated to form our natural satellite...

Open science.nasa.gov
Source 03

Source summary (model-reported)

The Moon was likely formed after a Mars-sized body collided with Earth several billion years ago. Earth's Moon is the only place beyond Earth where humans have set foot, so far.

Open solarsystem.nasa.gov
2 · Answer check returns No
Q3
1 · Guesser asks

Is the target a tangible physical entity rather than an event, process, or abstract concept?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target a tangible physical entity rather than an event, process, or abstract concept?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
Q4
1 · Guesser asks

Is it part of Earth’s natural environment, rather than something from outer space?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it part of Earth’s natural environment, rather than something from outer space?"}}
Oracle evidence3 model-reported sources

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

2 · Answer check returns No
Q5
1 · Guesser asks

Is the target an astronomical object or structure located primarily beyond Earth’s atmosphere?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target an astronomical object or structure located primarily beyond Earth’s atmosphere?"}}
Oracle evidence3 model-reported sources

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

Source 02

Source summary (model-reported)

The Moon is the only natural satellite of Earth. It orbits around Earth at an average distance of 384,399 kilometers (238,854 mi). In geophysical terms, it is a planetary-mass object or satellite planet.

Open en.wikipedia.org
Source 03

Source summary (model-reported)

The outermost part of our planet’s atmosphere extends well beyond the lunar orbit ... “The Moon flies through Earth’s atmosphere,” says Igor Baliukin ... Where our atmosphere merges into outer space, there is a cloud of hydrogen atoms called the geocorona.

Open esa.int
2 · Answer check returns Yes
Q6
1 · Guesser asks

Is the target a single astronomical body, rather than a collection of many bodies such as a galaxy, star cluster, or nebula?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target a single astronomical body, rather than a collection of many bodies such as a galaxy, star cluster, or nebula?"}}
Oracle evidence3 model-reported sources

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

2 · Answer check returns Yes
Q7
1 · Guesser asks

Does the target produce its own light through sustained nuclear fusion, as a star does?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the target produce its own light through sustained nuclear fusion, as a star does?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns No
Q8
1 · Guesser asks

Does the target orbit a star directly, rather than orbiting another astronomical body?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the target orbit a star directly, rather than orbiting another astronomical body?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

The Moon is rotating at the same rate that it revolves around Earth... The Moon makes a complete orbit around Earth in 27 Earth days... Earth is moving as well... as it orbits the Sun.

Open science.nasa.gov
2 · Answer check returns No
Q9
1 · Guesser asks

Does the target naturally orbit a planet or dwarf planet as a moon or other natural satellite?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the target naturally orbit a planet or dwarf planet as a moon or other natural satellite?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
Q10
1 · Guesser asks

Does the target naturally orbit Earth?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the target naturally orbit Earth?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
G
1 · Guesser guessesNot counted

the Moon

Earth’s natural satellite, the large rocky body orbiting Earth.

Validator rationale The proposal identifies the specific Moon, Earth's natural satellite, as the whole celestial body.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Earth’s natural satellite, the large rocky body orbiting Earth.","name":"the Moon","question":null}}
2 · Validator returns Yes