Claude Sonnet 5 (high) on Garfield - Round 3

Round 3

Identified Garfield in 31 counted questions.

Questions: 31
Outcome: Solved
Format errors: Errors found View one example
Duration: 12m 41s
Round cost: $0.5231 All 32 turns

Format warning

The model sent replies in the wrong format.

The Guesser sent 2 invalid replies. 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: 93.8%
Format errors: 2
Turns used by format errors: 2

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.

System message

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.

BEGIN event

{"category":"fictional_character","event":"BEGIN","variation_token":"AMZAISLM"}

Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.

1 · Guesser asks

Is the character human (or human-like in appearance)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character human (or human-like in appearance)?"}}

2 · Answer check returns Unknown

1 · Guesser asks

Is the character from a book (originally appeared in a novel or written literary work)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character from a book (originally appeared in a novel or written literary work)?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

On June 19, 1978, the comic strip first appeared in 41 newspapers.

Open indianahistory.org

Source 02

The character created by US cartoonist Jim Davis debuted 40 years ago ... in a comic strip published in 41 newspapers.

Open dw.com

2 · Answer check returns No

1 · Guesser asks

Did the character originate in a movie or TV show (live-action or animated)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Did the character originate in a movie or TV show (live-action or animated)?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

In 1978 he launched Garfield for United Features... Garfield (1978– ) is a comic strip.

Open si.edu

Source 02

On June 19, 1978, Garfield was introduced to the world in a comic strip.

Open 21alivenews.com

2 · Answer check returns No

1 · Guesser reply rejectedTurn counted

Reply in the wrong format.

Invalid action · fixed format reminder sent

Why this reply was rejectedInvalid action · turn 4

The reply was JSON, but it matched neither the ASK nor the GUESS format.

Recorded type: invalid_action
Turn: 4
Counted: Yes · question 4
Feedback: FORMAT_ERROR

What the model returnedExact text from the provider

Attempt 1 · finish stop

{"result":{"action":"ASK","question":"","name":null,"description":null}}

What a valid reply looks likeThe same formats shown to the Guesser

ASK

{"result":{"action":"ASK","description":null,"name":null,"question":"<non-empty yes-or-no property question>"}}

GUESS

{"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

1 · Guesser asks

Did the character originate in a video game?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Did the character originate in a video game?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

In 1978 he launched Garfield for United Features... Garfield has been represented in books, films, television specials, video games, amusement park attractions, and merchandise.

Open americanhistory.si.edu

Source 02

On June 19, 1978, the comic strip first appeared in 41 newspapers.

Open indianahistory.org

2 · Answer check returns No

1 · Guesser asks

Did the character originate in a comic book or graphic novel?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Did the character originate in a comic book or graphic novel?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

The character created by US cartoonist Jim Davis debuted 40 years ago, on June 19, 1978, in a comic strip published in 41 newspapers.

Open dw.com

Source 02

An orange tabby cat peered lugubriously at the world from the panels of his first comic strip.

Open theguardian.com

2 · Answer check returns No

1 · Guesser asks

Is the character from mythology or folklore?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character from mythology or folklore?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

In 1978 he launched Garfield for United Features... Garfield (1978- ) is a comic strip which looks at the life of the title character.

Open si.edu

Source 02

Garfield — cartoon character

Open britannica.com

2 · Answer check returns No

1 · Guesser asks

Is the character from a stage play or theatrical work?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character from a stage play or theatrical work?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

31 years after he first put pen to paper and created ... the world's most widely syndicated comic strip. ... 'I would have started Garfield on stage 30 years ago' ... 'And so it will be.'

Open playbill.com

Source 02

In 1978 he launched Garfield for United Features ... Garfield (1978- ) is a comic strip which looks at the life of the title character.

Open si.edu

2 · Answer check returns No

1 · Guesser asks

Is the character from a religious text or scripture?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character from a religious text or scripture?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

In 1978 he launched Garfield for United Features and created one of the most popular animals in the comic world.

Open si.edu

Source 02

Garfield — cartoon character.

Open britannica.com

2 · Answer check returns No

Q10

1 · Guesser asks

Is the character a mascot or spokesperson for a brand/product (such as in advertising)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a mascot or spokesperson for a brand/product (such as in advertising)?"}}

Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

For years, the antics of Garfield the cartoon cat have dominated advertising for Embassy Suites hotels.

Open nytimes.com

Source 02

Fetch launched a Garfield-inspired marketing campaign to celebrate a new generation of pet parents.

Open prnewswire.com

Source 03

IAMS Brand Teams Up with Garfield to Tackle America's Overweight Cat Problem.

Open prnewswire.com

2 · Answer check returns Yes

Q11

1 · Guesser asks

Is the character an animal (or animal-like, such as a talking animal mascot)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character an animal (or animal-like, such as a talking animal mascot)?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield [is] portrayed as an overweight, cynical, lazy and sarcastic orange cat.

Open characters.fandom.com

Source 02

Species: Cat

Open keycollectorcomics.com

2 · Answer check returns Yes

Q12

1 · Guesser asks

Does the character advertise a food or beverage product (as opposed to a non-food product)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Does the character advertise a food or beverage product (as opposed to a non-food product)?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

When Alpo decided to enter the cat food market in the 1980s, the company needed an ambassador... Alpo chose Garfield.

Open hagley.org

Source 02

Garfield Honey Nut Cheerios Ad... Garfield races against Buzz the bee for Honey Nut Cheerios.

Open retrojunk.com

2 · Answer check returns Yes

Q13

1 · Guesser reply rejectedTurn counted

Reply in the wrong format.

Invalid action · fixed format reminder sent

Why this reply was rejectedInvalid action · turn 13

The reply was JSON, but it matched neither the ASK nor the GUESS format.

Recorded type: invalid_action
Turn: 13
Counted: Yes · question 13
Feedback: FORMAT_ERROR

What the model returnedExact text from the provider

Attempt 1 · finish stop

{"result":{"action":"ASK","question":"","name":null,"description":null}}

What a valid reply looks likeThe same formats shown to the Guesser

ASK

{"result":{"action":"ASK","description":null,"name":null,"question":"<non-empty yes-or-no property question>"}}

GUESS

{"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

Q14

1 · Guesser asks

Is the character a tiger?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a tiger?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield (1978- ) is a comic strip which looks at the life of the title character, a tabby cat.

Open si.edu

2 · Answer check returns No

Q15

1 · Guesser asks

Is the character a bird?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a bird?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Davis said, “I thought if I could create a convincing cat...”

Open petplace.com

2 · Answer check returns No

Q16

1 · Guesser asks

Is the character a mammal?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a mammal?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield, American newspaper comic strip featuring a fat, lazy cat

Open britannica.com

2 · Answer check returns Yes

Q17

1 · Guesser asks

Is the character a rabbit?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a rabbit?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield (1978- ) is a comic strip which looks at the life of the title character, a tabby cat.

Open si.edu

Source 02

Jim created a new character – a fat, lasagna-loving cat named Garfield.

Open indianahistory.org

2 · Answer check returns No

Q18

1 · Guesser asks

Is the character a cow?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a cow?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield (1978- ) is a comic strip which looks at the life of the title character, a tabby cat.

Open si.edu

2 · Answer check returns No

Q19

1 · Guesser asks

Is the character a cheetah?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a cheetah?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield ... is a tabby cat.

Open si.edu

Source 02

Garfield, the orange tabby cat

Open gocomics.com

2 · Answer check returns No

Q20

1 · Guesser asks

Is the character a bear?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a bear?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield (1978- ) is a comic strip which looks at the life of the title character, a tabby cat.

Open si.edu

2 · Answer check returns No

Q21

1 · Guesser asks

Is the character a dog?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a dog?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield (1978- ) is a comic strip which looks at the life of the title character, a tabby cat.

Open si.edu

2 · Answer check returns No

Q22

1 · Guesser asks

Does the character advertise a breakfast cereal?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Does the character advertise a breakfast cereal?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

A commercial with Garfield racing with Buzz the Bee for Honey Nut Cheerios.

Open retrojunk.com

Source 02

Honey Nut Cheerios with Garfield (1993)

Open ghostarchive.org

2 · Answer check returns Yes

Q23

1 · Guesser asks

Is the character a wolf?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a wolf?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

The title character, a tabby cat.

Open americanhistory.si.edu

Source 02

An orange tabby cat ... Garfield, the eponymous hero.

Open theguardian.com

2 · Answer check returns No

Q24

1 · Guesser guesses

Coco the Monkey

The monkey mascot of Kellogg's Coco Pops cereal

Validator rationale The proposal identifies Coco the Monkey, a cereal mascot, rather than Garfield, the fictional cat character.

Recorded Guesser outputRequired JSON format

{"result":{"action":"GUESS","description":"The monkey mascot of Kellogg's Coco Pops cereal","name":"Coco the Monkey","question":null}}

2 · Validator returns No

Q25

1 · Guesser asks

Is the character a monkey or ape (including gorilla, chimpanzee, or orangutan)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a monkey or ape (including gorilla, chimpanzee, or orangutan)?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield (1978- ) is a comic strip which looks at the life of the title character, a tabby cat.

Open si.edu

Source 02

Jim created a new character – a fat, lasagna-loving cat named Garfield.

Open indianahistory.org

2 · Answer check returns No

Q26

1 · Guesser asks

Is the character an elephant?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character an elephant?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

There are few felines as well-known as our beloved cartoon cat Garfield.

Open catster.com

2 · Answer check returns No

Q27

1 · Guesser asks

Is the character depicted as a fictional monster or mythical creature (rather than a real-world animal species)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character depicted as a fictional monster or mythical creature (rather than a real-world animal species)?"}}

Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield is a fictional orange tabby cat and the title character of the comic strip.

Open garfield.wiki

Source 02

Garfield is a cartoon character.

Open britannica.com

2 · Answer check returns No

Q28

1 · Guesser asks

Is the character a lion?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a lion?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield (1978- ) is a comic strip which looks at the life of the title character, a tabby cat.

Open si.edu

2 · Answer check returns No

Q29

1 · Guesser asks

Is the character a puma or cougar (a large wild cat)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a puma or cougar (a large wild cat)?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield is a lazy and sarcastic but good-hearted lasagna-loving orange tabby cat.

Open en.wikipedia.org

2 · Answer check returns No

Q30

1 · Guesser asks

Is the character a cat?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character a cat?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Jim created a new character – a fat, lasagna-loving cat named Garfield.

Open indianahistory.org

2 · Answer check returns Yes

Q31

1 · Guesser asks

Is the cereal made by Kellogg's (as opposed to General Mills, Post, or another company)?

Recorded Guesser outputRequired JSON format

{"result":{"action":"ASK","description":null,"name":null,"question":"Is the cereal made by Kellogg's (as opposed to General Mills, Post, or another company)?"}}

Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Garfield Cereal From Quaker

Open mrbreakfast.com

2 · Answer check returns No

1 · Guesser guessesNot counted

Garfield

The famous orange cartoon cat who appeared as the mascot for Ralston's Garfield-branded breakfast cereal in the 1980s.

Validator rationale The proposal identifies Garfield, the same fictional orange cat character, with a compatible identifying description.

Recorded Guesser outputRequired JSON format

{"result":{"action":"GUESS","description":"The famous orange cartoon cat who appeared as the mascot for Ralston's Garfield-branded breakfast cereal in the 1980s.","name":"Garfield","question":null}}

2 · Validator returns Yes

Component	Calls	Total tokens	Input	Cached input	Cache write	Output	Reasoning	Latency	Cost	Cache savings
Guesser	32	108,139	73,726	70,369	3,293	34,413	6,341	481.34 s	$0.3666	$0.1250
Oracle, Reviewer, Judge	28	174,569	160,156	42,707	0	14,413	9,302	269.24 s	$0.1558	$0.0000
Validator	2	879	759	0	0	120	42	10.23 s	$0.0007	$0.0000

Round 3

The model sent replies in the wrong format.

Questions and answers.

Is the character human (or human-like in appearance)?

Is the character from a book (originally appeared in a novel or written literary work)?

Did the character originate in a movie or TV show (live-action or animated)?

Reply in the wrong format.

Did the character originate in a video game?

Did the character originate in a comic book or graphic novel?

Is the character from mythology or folklore?

Is the character from a stage play or theatrical work?

Is the character from a religious text or scripture?

Is the character a mascot or spokesperson for a brand/product (such as in advertising)?

Is the character an animal (or animal-like, such as a talking animal mascot)?

Does the character advertise a food or beverage product (as opposed to a non-food product)?

Reply in the wrong format.

Is the character a tiger?

Is the character a bird?

Is the character a mammal?

Is the character a rabbit?

Is the character a cow?

Is the character a cheetah?

Is the character a bear?

Is the character a dog?

Does the character advertise a breakfast cereal?

Is the character a wolf?

Coco the Monkey

Is the character a monkey or ape (including gorilla, chimpanzee, or orangutan)?

Is the character an elephant?

Is the character depicted as a fictional monster or mythical creature (rather than a real-world animal species)?

Is the character a lion?

Is the character a puma or cougar (a large wild cat)?

Is the character a cat?

Is the cereal made by Kellogg's (as opposed to General Mills, Post, or another company)?

Garfield

Format errors.

Where the format was wrong.

Round usage.