Deep20Bench
v1.1Current

Benchmark edition

Edition 1.1 settings

10 subjects3 rounds per subject40 question limit
Question answersYesRather yesRather noNoUnknown
What changed
Source
Menu
Round

Round 1

Round 1

Identified Moon in 11 counted questions.

Back to all Moon rounds
Questions
11
Outcome
Solved
Format errors
No errors
Duration
2m 29s
Round cost
$0.1024 All 12 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.

1 of 11 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 it something that is human-made?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it something that is human-made?"}}
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 was 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 solarsystem.nasa.gov
Source 02

Source summary (model-reported)

The Moon is a rocky body that orbits planet Earth. It likely formed when a very large (Mars-sized) asteroid struck Earth 4.5 billion years ago ... The debris from the impact clumped together to form our natural satellite, the Moon.

Open asc-csa.gc.ca
2 · Answer check returns No
Q2
1 · Guesser asks

Is it a living organism or a part of a living organism?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a living organism or a part of a living organism?"}}
Oracle evidence3 model-reported sources

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

Source 03
The Moon is a rocky body that orbits planet Earth. It likely formed when a very large (Mars-sized) asteroid struck Earth 4.5 billion years ago, very early in our planet's history.
Open asc-csa.gc.ca
2 · Answer check returns No
Q3
1 · Guesser asks

Is it a type of substance, material, or chemical element?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a type of substance, material, or chemical element?"}}
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 only natural satellite is simply called "the Moon"... The Moon has a core, mantle, and crust. The mantle is most likely made of minerals like olivine and pyroxene... The crust is made of oxygen, silicon, magnesium, iron, calcium, and aluminum, with small amounts of other elements.

Open solarsystem.nasa.gov
Source 02

Source summary (model-reported)

It’s a spinning rock that’s a constant throughout our lives: our natural satellite, the Moon. The Moon is not made of cheese; it’s made of remnants of a baby Earth!

Open science.nasa.gov
Source 03

Source summary (model-reported)

The Moon’s relatively bright, elevated highlands are rich in elements like calcium and aluminum... Lunar regolith is the Moon’s “soil”. This dusty, rocky substance... is made up of fractured and broken pieces of lunar rocks.

Open science.nasa.gov
2 · Answer check returns No
Q4
1 · Guesser asks

Is it found primarily on Earth (including its surface, interior, or atmosphere)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it found primarily on Earth (including its surface, interior, or atmosphere)?"}}
Oracle evidence1 model-reported source

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

2 · Answer check returns No
Q5
1 · Guesser asks

Is it an astronomical object or structure found in outer space?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it an astronomical object or structure found in outer space?"}}
Oracle evidence1 model-reported source

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

2 · Answer check returns Yes
Q6
1 · Guesser asks

Is it a specific, individually named celestial body or structure (rather than a general class or type of astronomical object)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a specific, individually named celestial body or structure (rather than a general class or type of astronomical object)?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
Q7
1 · Guesser asks

Is it located within our Solar System?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located within our Solar System?"}}
Oracle evidence2 model-reported sources

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

Source 02

Source summary (model-reported)

The Moon is a rocky body that orbits planet Earth. ... Other than Earth, the Moon is the most explored celestial body in our solar system.

Open asc-csa.gc.ca
2 · Answer check returns Yes
Q8
1 · Guesser asks

Is it classified as a planet or a dwarf planet?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it classified as a planet or a dwarf planet?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

Naturally-formed bodies that orbit planets are called moons, or planetary satellites. ... Our solar system has hundreds of known moons orbiting planets and dwarf planets. ... Earth's Moon

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

Is it a natural satellite (moon) of a planet or dwarf planet?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a natural satellite (moon) of a planet or dwarf planet?"}}
Oracle evidence1 model-reported source

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

2 · Answer check returns Yes
Q10
1 · Guesser asks

Does it orbit either Jupiter or Saturn?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it orbit either Jupiter or Saturn?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns No
Q11
1 · Guesser asks

Does it orbit a rocky inner planet (Earth or Mars)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it orbit a rocky inner planet (Earth or Mars)?"}}
Oracle evidence2 model-reported sources

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

Source 01
Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons. Earth's Moon probably formed when a large body about the size of Mars collided with Earth...
Open solarsystem.nasa.gov
Source 02
Earth is the largest of the four inner, terrestrial (rocky) planets... Earth has a single natural satellite, the Moon, which orbits the planet at a mean distance of about 384,400 km.
Open britannica.com
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted

The Moon

Earth's only natural satellite.

Validator rationale “The Moon” and “Earth’s only natural satellite” identify the specific celestial body targeted, not the general class.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Earth's only natural satellite.","name":"The Moon","question":null}}
2 · Validator returns Yes