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.
- Questions
- 10
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 2m 4s
- Round cost
- $0.0533 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.
{"category":"thing","event":"BEGIN","variation_token":"BKXG3AZI"}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 or directly derived from one (such as an animal, plant, or anatomical part)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target a living organism or directly derived from one (such as an animal, plant, or anatomical part)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The Moon, like Earth, consists of three main layers: a crust, a mantle, and a core. Billions of years ago, the Moon was a molten world. As it solidified, the heaviest materials (metals like iron) sank down into the Moon’s center, and the lighter materials (lower density rocks) rose towards the surface.
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
Rock samples collected during the Apollo missions provided evidence that the Moon resulted from an object crashing into Earth in the early history of the solar system. The type and composition of the samples showed that the Moon had been molten during its formation and was covered with a deep ocean of magma.
Open science.nasa.gov (opens in a new tab) 2 · Answer check returns No
Q2
1 · Guesser asks
Is the target a physical, tangible entity (having physical substance or form)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target a physical, tangible entity (having physical substance or form)?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Like Earth, the Moon consists of three main layers: a crust, a mantle, and a core. ... The result is a structure a bit like a chocolate-dipped cherry – solid core, mostly solid/partly liquid mantle, and thin outer crust.Open science.nasa.gov (opens in a new tab)
2 · Answer check returns Yes
Q3
1 · Guesser asks
Is the target primarily man-made or artificial?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target primarily man-made or artificial?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
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 (opens in a new tab)
Earth’s Moon was born out of destruction... 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.Open science.nasa.gov (opens in a new tab)
2 · Answer check returns No
Q4
1 · Guesser asks
Is the target naturally found on Earth?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target naturally found on Earth?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The Moon is Earth's only natural satellite. It goes around the Earth at a distance of about 239,000 miles (385,000 kilometers).Open science.nasa.gov (opens in a new tab)
Distance from Earth 238,855 miles | 384,400 kilometers. The Moon is an average of 238,855 miles (384,400 kilometers) away.Open solarsystem.nasa.gov (opens in a new tab)
2 · Answer check returns No
Q5
1 · Guesser asks
Is the target a specific, individually named astronomical object or feature (such as a specific planet, moon, or star)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target a specific, individually named astronomical object or feature (such as a specific planet, moon, or star)?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The Moon is the only natural satellite of Earth.Open en.wikipedia.org (opens in a new tab)
In a specific sense, the Moon is the only natural satellite of Earth and the fifth largest such object in the Solar System.Open astronomy.swin.edu.au (opens in a new tab)
Earth's only natural satellite is simply called "the Moon".Open arcnav.psi.edu (opens in a new tab)
2 · Answer check returns Yes
Q6
1 · Guesser asks
Is the target located within our Solar System?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target located within our Solar System?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Within the Solar System, it is larger and more massive than any known dwarf planet, and the fifth-largest and fifth–most massive moon.Open en.wikipedia.org (opens in a new tab)
In a specific sense, the Moon is the only natural satellite of Earth and the fifth largest such object in the Solar System.Open astronomy.swin.edu.au (opens in a new tab)
2 · Answer check returns Yes
Q7
1 · Guesser asks
Is the target one of the eight major planets orbiting the Sun?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target one of the eight major planets orbiting the Sun?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Our moon is the fifth largest of the 190+ moons orbiting planets in our solar system. Earth's only natural satellite is simply called "the Moon"...
Open arcnav.psi.edu (opens in a new tab)Source summary (model-reported)
Together the Sun, the eight planets, the moons, asteroids and comets make up our Solar System. A body orbiting a planet is called a satellite. The Moon is the only natural satellite that orbits planet Earth.
Open bbc.co.uk (opens in a new tab) 2 · Answer check returns No
Q8
1 · Guesser asks
Is the target a natural satellite (moon) orbiting a planet or dwarf planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the target a natural satellite (moon) orbiting a planet or dwarf planet?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
NASA states: "Earth's only natural satellite is simply called 'the Moon'" and that "The Moon makes a complete orbit around Earth in 27 Earth days."Open solarsystem.nasa.gov (opens in a new tab)
Source summary (model-reported)
NASA's comparison page identifies the body as "Earth’s Moon" and provides its average orbit distance and mean orbit velocity relative to Earth.
Open science.nasa.gov (opens in a new tab) 2 · Answer check returns Yes
Q9
1 · Guesser asks
Does this moon orbit a planet located in the inner Solar System (Earth or Mars)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does this moon orbit a planet located in the inner Solar System (Earth or Mars)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Earth's only natural satellite is simply called "the Moon" ... The Moon makes a complete orbit around Earth in 27 Earth days.
Open solarsystem.nasa.gov (opens in a new tab)Source summary (model-reported)
Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus has any moons at all, Earth has one, and Mars has its two small moons.
Open nasa.gov (opens in a new tab) 2 · Answer check returns Yes
Q10
1 · Guesser asks
Does this moon orbit Mars?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does this moon orbit Mars?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The Moon makes a complete orbit around Earth in 27 Earth days... Does the Moon orbit Earth?
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
Mars has two moons, Phobos and Deimos. Both are thought to be captured asteroids... Phobos is the larger of Mars' two moons... The smaller moon is Deimos.
Open science.nasa.gov (opens in a new tab) 2 · Answer check returns No
G
1 · Guesser guessesNot counted
Moon
Earth's only natural satellite
Validator rationale The proposal identifies the specific Moon, Earth's natural satellite, matching the target entity as a whole.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Earth's only natural satellite","name":"Moon","question":null}} 2 · Validator returns Yes