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
- 9
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 55s
- Round cost
- $0.0243 All 10 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.
5 of 9 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 primarily a human-made object?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject primarily a human-made object?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
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... The Moon is Earth's only natural satellite.
Open science.nasa.gov (opens in a new tab)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 (opens in a new tab) 2 · Answer check returns No
Q2
1 · Guesser asks
Is the subject a living organism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a living organism?"}}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)
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)
2 · Answer check returns No
Q3
1 · Guesser asks
Is it a naturally occurring physical object or substance?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a naturally occurring physical object or substance?"}}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. ... The Moon likely formed after a Mars-sized body collided with Earth several billion years ago.
Open science.nasa.gov (opens in a new tab)Naturally-formed bodies that orbit planets are called moons, or planetary satellites. ... They are generally solid bodies.Open science.nasa.gov (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Is it found primarily on Earth?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it found primarily on Earth?"}}Oracle evidence1 model-reported source
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)
2 · Answer check returns No
Q5
1 · Guesser asks
Is it a celestial body or astronomical object?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a celestial body or astronomical object?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
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 (opens in a new tab)
The term “natural satellite” is usually reserved for moons and other celestial objects that orbit planets, dwarf planets, and minor planets... the moon is actually a satellite orbiting Earth.Open nesdis.noaa.gov (opens in a new tab)
2 · Answer check returns Yes
Q6
1 · Guesser asks
Is it a specific named astronomical object rather than a general type?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a specific named astronomical object rather than a general type?"}}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). NASA also explains that the Moon shares a name with all moons because other moons were not known historically, and identifies Luna as its Latin name.
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
The English proper name for Earth's natural satellite is typically written as Moon, with a capital M. The International Astronomical Union (IAU) calls Earth's satellite “the Moon”, with a capital “M”. The article distinguishes this object from moons in general.
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns Yes
Q7
1 · Guesser asks
Is it located in our solar system?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located in our solar system?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
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)
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)
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 (opens in a new tab)
2 · Answer check returns Yes
Q8
1 · Guesser asks
Is it a planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a planet?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The IAU definition also excludes moons from being planets. ... our moon ... may not be defined as a planet, but it definitely acts like one.Open nasa.gov (opens in a new tab)
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) 2 · Answer check returns No
Q9
1 · Guesser asks
Is it a natural satellite of a planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a natural satellite of a 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 rocky body that orbits planet Earth. It completes one orbit around Earth in 27.3 days.
Open asc-csa.gc.ca (opens in a new tab)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.
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
The Moon
Earth's natural satellite.
Validator rationale “The Moon” and “Earth's natural satellite” identify the specific celestial body targeted, not the general class of natural satellites.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Earth's natural satellite.","name":"The Moon","question":null}} 2 · Validator returns Yes