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
- 11
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 2m 12s
- Round cost
- $0.0620 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.
{"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 the subject a physical entity rather than an abstract concept or event?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a physical entity rather than an abstract concept or event?"}}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)
The Moon is a spherical rocky body, probably with a small metallic core, revolving around Earth in a slightly eccentric orbit at a mean distance of about 384,000 km (238,600 miles).Open britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q2
1 · Guesser asks
Is the subject human-made rather than naturally occurring?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject human-made rather than naturally occurring?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
NASA identifies the Moon as Earth's only natural satellite and states that it likely formed after a Mars-sized body collided with Earth several billion years ago; debris from Earth and the impactor accumulated to form it.
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
NASA describes the leading theory of the Moon's origin as a collision between a Mars-sized body and Earth approximately 4.5 billion years ago, with the resulting debris accumulating to form Earth's natural satellite.
Open nasa.gov (opens in a new tab) 2 · Answer check returns No
Q3
1 · Guesser asks
Is the subject a living organism or part of one?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a living organism or part of one?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Earth has one natural satellite, called the Moon. ... The Moon is a barren, lifeless world.Open timeanddate.com (opens in a new tab)
Source summary (model-reported)
A natural satellite is a small solar system body of natural origin that orbits a larger solar system body. This chapter identifies the Earth and the Moon as examples in this context.
Open link.springer.com (opens in a new tab) 2 · Answer check returns No
Q4
1 · Guesser asks
Is the subject a celestial body or astronomical object?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a celestial body or astronomical object?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
NASA states that a satellite is a body that orbits around another body in space, distinguishes natural and human-made satellites, and gives Earth and the Moon as examples of natural satellites.
Open nasa.gov (opens in a new tab)Source summary (model-reported)
Britannica describes the Moon as Earth's natural satellite and refers to it as a celestial object.
Open kids.britannica.com (opens in a new tab) 2 · Answer check returns Yes
Q5
1 · Guesser asks
Is the subject a body that orbits the Sun?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a body that orbits the Sun?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
As the Moon completes each 27.3-day orbit around Earth, both Earth and the Moon are moving around the Sun.Open science.nasa.gov (opens in a new tab)
Together, the Moon and Earth begin another journey around the Sun.Open science.nasa.gov (opens in a new tab)
Source summary (model-reported)
The Moon is the only natural satellite of Earth and orbits Earth.
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns Rather yes
Q6
1 · Guesser asks
Is the subject one of the eight major planets of the Solar System?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject one of the eight major planets of the Solar System?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
By the 17th century, astronomers ... realized that the Moon is not a planet, but a satellite of Earth.Open science.nasa.gov (opens in a new tab)
The eight major planets in our Solar System and Earth’s satellite have official IAU names or designations.Open iauarchive.eso.org (opens in a new tab)
The best-known planetary satellite is, of course, Earth’s moon, eponymously named ... “the Moon”.Open ssd.jpl.nasa.gov (opens in a new tab)
2 · Answer check returns No
Q7
1 · Guesser asks
Is the subject classified as a dwarf planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject classified as a dwarf planet?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The IAU defines a planet of the Solar System as a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.
Open iau.org (opens in a new tab)Source summary (model-reported)
A dwarf planet is a body, other than a natural satellite (moon), that orbits the Sun and is large enough for its own gravity to have rounded its shape substantially.
Open kids.britannica.com (opens in a new tab) 2 · Answer check returns No
Q8
1 · Guesser asks
Is the subject a natural satellite (a moon) orbiting a planet or minor planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a natural satellite (a moon) orbiting a planet or minor planet?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The Moon is a natural satellite, or a space object that orbits around something else. Our Moon is Earth’s natural satellite. ... In general, a moon is a natural satellite of a planet.
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
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) 2 · Answer check returns Yes
Q9
1 · Guesser asks
Does the subject orbit one of the giant planets (Jupiter, Saturn, Uranus, or Neptune)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the subject orbit one of the giant planets (Jupiter, Saturn, Uranus, or Neptune)?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
NASA states: "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)
2 · Answer check returns No
Q10
1 · Guesser asks
Does the subject orbit a terrestrial planet (Mercury, Venus, Earth, or Mars)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the subject orbit a terrestrial planet (Mercury, Venus, Earth, or Mars)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The Moon is Earth's only natural satellite. It goes around the Earth at a distance of about 239,000 miles (385,000 kilometers). The Moon makes a complete orbit around Earth in 27 Earth days.
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma.
Open science.nasa.gov (opens in a new tab) 2 · Answer check returns Yes
Q11
1 · Guesser asks
Is the subject the only natural satellite of its parent planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject the only natural satellite of its parent planet?"}}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)
The Moon is a natural satellite, or a space object that orbits around something else. Our Moon is Earth’s natural satellite.Open science.nasa.gov (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
The Moon
Earth's only natural satellite, orbiting a terrestrial planet.
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, orbiting a terrestrial planet.","name":"The Moon","question":null}} 2 · Validator returns Yes