You are the Guesser being evaluated in a Twenty Questions benchmark. One subject is hidden. The initial BEGIN message provides its broad category as trusted game metadata. Identify the subject using as few counted questions as possible. ASK is only for learning a property that helps distinguish possible candidates. Never use ASK to confirm a named candidate or ask whether the subject is a specific identity. When you are ready to name a candidate, use GUESS immediately. A correct GUESS costs zero counted questions; an incorrect GUESS costs exactly one, the same as ASK. A GUESS must provide both a name and a short identifying description. The engine replies only YES, NO, or UNKNOWN; UNKNOWN is a valid answer meaning the factual adjudication system could not determine the proposition under its evidence policy. Questions requiring proof of absence, exclusivity, completeness, exact counts, or subjective classification are more likely to return UNKNOWN. Prefer direct, positively verifiable properties when possible. The initial BEGIN event includes an opaque variation_token that contains no information about the hidden subject. Do not interpret, repeat, mention, or derive meaning from it. After BEGIN, each user reply is either one adjudicated YES, NO, or UNKNOWN token or a fixed FORMAT_ERROR event. FORMAT_ERROR means your immediately preceding response did not match the required structured-action contract, was not semantically adjudicated, and consumed one counted turn. Use the formats in that event and try again. Never infer that the attempted question or guess was right or wrong. At most 50 questions or rejected guesses are counted. After that limit you receive one final guess-only opportunity. Format errors also consume counted turns. The provider wire response is an object with exactly one `result` action. On the final opportunity ASK is forbidden. Return only the required structured response. Do not include analysis, hidden reasoning, or additional fields.
- Questions
- 19
- Outcome
- Solved
- Format errors
- Errors found View one example
- Duration
- 7m 2s
- Round cost
- $0.2859 All 20 turns
Format warning
The model sent replies in the wrong format.
The Guesser sent 1 invalid reply. Each one before the question limit used up a counted turn. The model was only reminded of the required format; it was never told whether its question or guess was correct.
- Valid format
- 95.0%
- Format errors
- 1
- Turns used by format errors
- 1
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":"fictional_character","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 reply rejectedTurn counted
Reply in the wrong format.
Invalid action · fixed format reminder sent
Why this reply was rejectedInvalid action · turn 1
The reply was JSON, but it matched neither the ASK nor the GUESS format.
- Recorded type
invalid_action- Turn
- 1
- Counted
- Yes · question 1
- Feedback
- FORMAT_ERROR
{"action":"ASK","question":"Is this fictional character originally from Japanese media (anime, manga, or Japanese video games)?"}{"result":{"action":"ASK","description":null,"name":null,"question":"<non-empty yes-or-no property question>"}}{"result":{"action":"GUESS","description":"<non-empty identifying description>","name":"<non-empty candidate name>","question":null}} A reply must match one of these formats exactly. Text fields in use must not be empty; unused fields must be JSON null.
2 · System responseFORMAT
Q2
1 · Guesser asks
Did this character originate in a feature film or movie?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in a feature film or movie?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Jim created a new character – a fat, lasagna-loving cat named Garfield. On June 19, 1978, the comic strip first appeared in 41 newspapers.Open indianahistory.org (opens in a new tab)
Jim Davis created Garfield in 1978.Open britannica.com (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Did this character originate in a television series?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in a television series?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Jim created a new character – a fat, lasagna-loving cat named Garfield. On June 19, 1978, the comic strip first appeared in 41 newspapers in U.S. cities.Open indianahistory.org (opens in a new tab)
2 · Answer check returns No
Q4
1 · Guesser asks
Did this character first appear in a book or other written literature?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character first appear in a book or other written literature?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
United Feature Syndicate debuted the first Garfield strip nationwide in 41 newspapers, starting on June 19, 1978.Open en.wikipedia.org (opens in a new tab)
Comic strips are a mass medium of adjacent drawn images designed to be read as a narrative, presented in a magazine, newspaper, or book.Open britannica.com (opens in a new tab)
2 · Answer check returns No
Q5
1 · Guesser asks
Did this character originate in a video game?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in a video game?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Originally published locally as Jon in 1976 (later changed to Garfield in 1977), then in nationwide syndication from 1978.Open en.wikipedia.org (opens in a new tab)
Garfield debuted June 19, 1978, in 41 newspapers.Open time.com (opens in a new tab)
2 · Answer check returns No
Q6
1 · Guesser asks
Did this character originate in a comic book or graphic novel?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in a comic book or graphic novel?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
United Feature Syndicate debuted the first Garfield comic strip nationwide in 41 newspapers, starting on June 19, 1978.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns No
Q7
1 · Guesser asks
Did this character originate in an animated work, such as an animated series or animated short?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in an animated work, such as an animated series or animated short?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Garfield is an American comic strip and media franchise created by Jim Davis.Open en.wikipedia.org (opens in a new tab)
The strip quickly achieved widespread popularity, spinning off a series of animated television specials; ... a long-running animated television series, Garfield and Friends, debuted in 1988.Open britannica.com (opens in a new tab)
2 · Answer check returns No
Q8
1 · Guesser asks
Did this character originate in ancient mythology, religion, or folklore?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in ancient mythology, religion, or folklore?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Jim Davis is an American cartoonist best known as the creator of the comic strip Garfield; the titular character was introduced in 1978.Open britannica.com (opens in a new tab)
2 · Answer check returns No
Q9
1 · Guesser asks
Did this character first appear on the stage, such as in a play or an opera?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character first appear on the stage, such as in a play or an opera?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Garfield is an American newspaper comic strip created by Jim Davis in 1978.Open britannica.com (opens in a new tab)
United Feature Syndicate debuted the first Garfield strip nationwide in 41 newspapers, starting on June 19, 1978.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns No
Q10
1 · Guesser asks
Did this character originate in an advertising campaign, as a brand mascot?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in an advertising campaign, as a brand mascot?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Garfield is a comic strip created by Jim Davis; the character first appeared in the locally published strip Jon in 1976 and entered nationwide syndication in 1978.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns No
Q11
1 · Guesser asks
Did this character originate in a radio program or audio drama?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in a radio program or audio drama?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Garfield debuted on June 19, 1978, in 41 newspapers across the United States.Open britannica.com (opens in a new tab)
Jim created a new character – a fat, lasagna-loving cat named Garfield. On June 19, 1978, the comic strip first appeared in 41 newspapers.Open indianahistory.org (opens in a new tab)
2 · Answer check returns No
Q12
1 · Guesser asks
Did this character originate in a web series or other online-only media?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in a web series or other online-only media?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Garfield was created by cartoonist Jim Davis in 1978 as a popular comic strip.Open britannica.com (opens in a new tab)
United Feature Syndicate debuted the first Garfield strip nationwide in 41 newspapers, starting on June 19, 1978.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns No
Q13
1 · Guesser asks
Did this character originate in a tabletop game, such as a role-playing game, board game, or trading card game?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character originate in a tabletop game, such as a role-playing game, board game, or trading card game?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Jim created a new character – a fat, lasagna-loving cat named Garfield. On June 19, 1978, the comic strip first appeared in 41 newspapers.Open indianahistory.org (opens in a new tab)
United Feature Syndicate debuted the first strip nationwide in 41 newspapers, starting on June 19, 1978.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns No
Q14
1 · Guesser asks
Did this character first appear in a comic strip (newspaper or webcomic)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did this character first appear in a comic strip (newspaper or webcomic)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
On June 19, 1978, Garfield was introduced to the world in a comic strip. The lasagna-loving feline appeared in newspapers across the country.Open 21alivenews.com (opens in a new tab)
Jim Davis's first Garfield comic strip debuted on June 19, 1978 in 41 newspapers.Open history.howstuffworks.com (opens in a new tab)
2 · Answer check returns Yes
Q15
1 · Guesser asks
Was this comic strip character first published before 1950?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this comic strip character first published before 1950?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
United Feature Syndicate debuted the first strip nationwide in 41 newspapers, starting on June 19, 1978.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns No
Q16
1 · Guesser asks
Was this comic strip character first published before 1990?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was this comic strip character first published before 1990?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
The first Garfield strip was published on June 19, 1978.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q17
1 · Guesser asks
Is this character a non-human, such as an animal or imaginary creature?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this character a non-human, such as an animal or imaginary creature?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Garfield is a black and orange tabby cat.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q18
1 · Guesser asks
Is this character a dog?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this character a dog?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Garfield is a round-bodied, orange and black tabby cat.Open britannica.com (opens in a new tab)
The rotund feline famous for his love of lasagna, naps, and sarcastic asides... the cat turned out to possess enough deadpan charm.Open life.com (opens in a new tab)
2 · Answer check returns No
Q19
1 · Guesser asks
Is this character a cat?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this character a cat?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Garfield is a black and orange tabby cat belonging to Jon Arbuckle.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Garfield
The lazy, lasagna-loving orange tabby cat from Jim Davis's comic strip, known for his sarcastic humor and hatred of Mondays
Validator rationale The proposed identity matches Garfield, the fictional orange cat created by Jim Davis and protagonist of the Garfield comic strip.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"The lazy, lasagna-loving orange tabby cat from Jim Davis's comic strip, known for his sarcastic humor and hatred of Mondays","name":"Garfield","question":null}} 2 · Validator returns Yes