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
- 8
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 1m 4s
- Round cost
- $0.0197 All 9 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.
2 of 8 answers in this round reuse an earlier, fully checked answer with its original evidence. No new search or check ran for those turns.
Is the subject a living thing?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a living thing?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The many missions that have explored the Moon have found no evidence to suggest it has its own living things.Open solarsystem.nasa.gov (opens in a new tab)
Since the ancient time of volcanism, the arid, lifeless Moon has remained nearly unchanged over billions of years.Open jpl.nasa.gov (opens in a new tab)
Is the subject made by humans?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject made by humans?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
NASA states that the Moon likely formed after a Mars-sized body collided with Earth several billion years ago, and that debris from Earth and the impactor accumulated to form Earth's natural satellite.
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
JPL defines planetary satellites as naturally formed bodies in orbit around planets and identifies Earth's moon as the best-known planetary satellite.
Open ssd.jpl.nasa.gov (opens in a new tab)Is the subject a natural geographical or celestial feature?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a natural geographical or celestial feature?"}}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)
Moon, Earth's sole natural satellite and nearest large celestial body.Open britannica.com (opens in a new tab)
Is the subject a celestial body, such as a star, planet, or moon?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a celestial body, such as a star, planet, or moon?"}}Oracle evidence1 model-reported source
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" ... Earth's Moon is the only place beyond Earth where humans have set foot, so far.
Open solarsystem.nasa.gov (opens in a new tab)Is the subject a star?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a star?"}}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 solarsystem.nasa.gov (opens in a new tab)
Moon, Earth’s sole natural satellite and nearest large celestial body. Known since prehistoric times, it is the brightest object in the sky after the Sun.Open britannica.com (opens in a new tab)
Is the subject a planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a planet?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The answer is technically no — at least according to NASA and the International Astronomical Union (IAU), an important global authority in astronomy. An object needs to meet four criteria to be a planet, per the IAU. It must be big enough that gravity pulls it into a nice, round shape and big enough to have cleared out all the asteroids and other junk from its orbit.Open livescience.com (opens in a new tab)
Source summary (model-reported)
The Moon is the only natural satellite of Earth. In geophysical terms, the Moon is a planetary-mass object or satellite planet.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
The difference between a moon and a planet is that a planet orbits a star, and a moon orbits a planet. The Moon is Earth's natural satellite.
Open asc-csa.gc.ca (opens in a new tab)Is the subject a moon, meaning a natural satellite orbiting a planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a moon, meaning a natural satellite orbiting a planet?"}}Oracle evidence3 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 solarsystem.nasa.gov (opens in a new tab)
Naturally-formed bodies in orbit around planets are referred to here as “planetary satellites”, and are often called “moons.” 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)
The Moon, the natural satellite of Earth. The Moon is a rocky body that orbits planet Earth.Open asc-csa.gc.ca (opens in a new tab)
Does the subject orbit the Earth?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the subject orbit the Earth?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The Moon makes a complete orbit around Earth in 27 Earth days and rotates or spins at that same rate.Open solarsystem.nasa.gov (opens in a new tab)
The Moon is a rocky body that orbits planet Earth. The Moon completes one orbit around Earth in 27.3 days.Open asc-csa.gc.ca (opens in a new tab)
Moon
Earth's only natural satellite, orbiting the Earth.
Validator rationale The proposal identifies the specific Moon, Earth's natural satellite, as a whole.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Earth's only natural satellite, orbiting the Earth.","name":"Moon","question":null}}