Deep20Bench
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Edition 1.1 settings

10 subjects3 rounds per subject40 question limit
Question answersYesRather yesRather noNoUnknown
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Round

Round 3

Round 3

Identified Door handle in 19 counted questions.

Back to all Door handle rounds
Questions
19
Outcome
Solved
Format errors
Errors found View one example
Duration
3m 26s
Round cost
$0.0542 All 20 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
90.0%
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 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.
BEGIN event
{"category":"thing","event":"BEGIN","variation_token":"AMZAISLM"}

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

3 of 16 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 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
What the model returnedExact text from the provider
Attempt 1 · finish stop
{"action":"ASK","question":"Is it a living thing (or derived from a living organism) rather than something purely non-living?"}
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
Q2
1 · Guesser asks

Is it a living thing?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a living thing?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

A door handle is the handle used to open and close a door. ... Door handles can turn, but they can also be fixed in place, like a vertical or horizontal bar.

Open dictionary.com
2 · Answer check returns No
Q3
1 · Guesser asks

Is it made by humans?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it made by humans?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

The article describes making door handles by selecting material, designing the shape, making molds, and using casting, forging, or machining, followed by assembly and finishing. It presents these as manufacturing processes for door handles.

Open fosunhardware.com
Source 02

Source summary (model-reported)

dormakaba presents door handles as products in its door-hardware range, describing their workmanship, design, production time, and manufacture from materials including stainless steel and aluminium.

Open dormakaba.com
Source 03

Source summary (model-reported)

A door handle is defined as the handle used to open and close a door; the entry describes different human-designed forms, including knobs, vertical bars, and horizontal bars.

Open dictionary.com
2 · Answer check returns Yes
Q4
1 · Guesser asks

Can it typically be held in a person's hand?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Can it typically be held in a person's hand?"}}
Oracle evidence3 model-reported sources

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

Source 02

Source summary (model-reported)

Door handles are defined as hardware components designed to facilitate the opening and closing of doors, typically featuring long, easily grasped designs.

Open sciencedirect.com
2 · Answer check returns Yes
Q5
1 · Guesser asks

Is it primarily used as a tool or for practical purposes?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used as a tool or for practical purposes?"}}
Oracle evidence3 model-reported sources

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

Source 02

Source summary (model-reported)

Schlage describes door levers as having specific functions, including handles that are simply used to swing the door open and closed.

Open schlage.com
2 · Answer check returns Yes
Q6
1 · Guesser asks

Is it an electronic device?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it an electronic device?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

A door handle is the handle used to open and close a door. ... Door handles can turn, but they can also be fixed in place, like a vertical or horizontal bar.

Open dictionary.com
Source 02

Source summary (model-reported)

The digital door handles ... enable electronic access control ... The electronics and mechanics are housed ... in the lever handle. ... A visually identical mechanical version is also available for every digital door handle.

Open telenot.com
Source 03

Source summary (model-reported)

Huf ... reports increasing demand for electronic door handles for passive entry and describes door-handle electronics and integrated electronic components.

Open huf-group.com
2 · Answer check returns No
Q7
1 · Guesser asks

Is it made mainly of metal?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it made mainly of metal?"}}
Oracle evidence3 model-reported sources

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

Source 01
In the U.S., most door knobs and levers are made from brass. Historically, door knobs and levers have been made from glass, wood, clay, bronze, brass, iron, and steel. Today, most door hardware in the U.S. is brass, but you’ll also find options made from bronze, stainless steel, iron, pewter, and other metals.
Open brennancorp.com
Source 02

Source summary (model-reported)

Door handles can be made from various materials depending on the style, function, and budget. Common materials listed include brass, stainless steel, zinc alloy, aluminum, and bronze. The source notes that plastic or PVC handles also exist, often for less expensive or temporary applications.

Open atlantichandles.com
2 · Answer check returns Yes
Q8
1 · Guesser asks

Is it used for cutting?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for cutting?"}}
Oracle evidence2 model-reported sources

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

Source 02

Source summary (model-reported)

The source states that door handles and door knobs can both be used to open or close a door, and that their function is to engage or disengage the latch bolt from the striker plate.

Open atlantichandles.com
2 · Answer check returns No
Q9
1 · Guesser asks

Is it used in cooking or food preparation?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used in cooking or food preparation?"}}
Oracle evidence2 model-reported sources

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

Source 02

Source summary (model-reported)

The source states that swinging doors are essential in gastronomy and can be opened without using hands, for example by waiters carrying plates; the doors separate the kitchen and guest room and close automatically.

Open teckentrup.biz
2 · Answer check returns No
Q10
1 · Guesser asks

Is it commonly found in a household?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it commonly found in a household?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
Q11
1 · Guesser asks

Is it used for fastening or joining things together?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for fastening or joining things together?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

The door handle has only a lever handle or knob which operates this latch. Pushing the handle down rotates the spindle, operating the tubular latch mechanism inside the door, allowing it to be opened.

Open en.wikipedia.org
2 · Answer check returns No
Q12
1 · Guesser asks

Is it used for cleaning?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for cleaning?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

The door handle has only a lever handle or knob which operates this latch. Pushing the handle down rotates the spindle, operating the tubular latch mechanism inside the door, allowing it to be opened.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

The page gives instructions for cleaning door handles, including wiping the handle with soap and water or other cleaning mixtures. This describes cleaning performed on the handle, not the handle being used for cleaning.

Open southernliving.com
2 · Answer check returns No
Q13
1 · Guesser asks

Is it small enough to fit in a pocket?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it small enough to fit in a pocket?"}}
Oracle evidence3 model-reported sources

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

2 · Answer check returns Unknown
Q14
1 · Guesser asks

Is it mainly used for repair or construction work?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it mainly used for repair or construction work?"}}
Oracle evidence3 model-reported sources

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

2 · Answer check returns No
Q15
1 · Guesser asks

Is it used for opening something?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for opening something?"}}
Oracle evidence1 model-reported source

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

2 · Answer check returns Yes
Q16
1 · Guesser reply rejectedTurn counted

Reply in the wrong format.

Invalid action · fixed format reminder sent

Why this reply was rejectedInvalid action · turn 16

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

Recorded type
invalid_action
Turn
16
Counted
Yes · question 16
Feedback
FORMAT_ERROR
What the model returnedExact text from the provider
Attempt 1 · finish stop
{"result":{"action":"GUESS","description":"A small handheld metal tool used to open bottles","name":"bottle opener"}}
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
Q17
1 · Guesser guesses

key

A small metal object used to open locks

Validator rationale A key is a separate object used to operate a lock, not the hand-operated door handle fitting.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"A small metal object used to open locks","name":"key","question":null}}
2 · Validator returns No
Q18
1 · Guesser asks

Is it used for opening bottles or cans?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for opening bottles or cans?"}}
Oracle evidence2 model-reported sources

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

Source 02

Source summary (model-reported)

The product is a bottle opener intended to help open bottles and containers; the page mentions using it to provide extra grip on items such as taps and door handles. This describes a separate opener being used with a door handle, not a door handle opening bottles or cans.

Open activehands.com
2 · Answer check returns No
Q19
1 · Guesser asks

Is it attached to or part of a door?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it attached to or part of a door?"}}
Oracle evidence2 model-reported sources

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

Source 02

Source summary (model-reported)

The page describes door handles as fittings used with doors: a lever or knob operates the latch mechanism inside the door, allowing the door to be opened.

Open en.wikipedia.org
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted

door handle

A metal door handle used for opening a door

Validator rationale The proposal identifies the general kind: a door handle. The added material detail (metal) is compatible with the target, which leaves material unspecified.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"A metal door handle used for opening a door","name":"door handle","question":null}}
2 · Validator returns Yes