Deep20Bench
v1.1Current

Benchmark edition

Edition 1.1 settings

10 subjects3 rounds per subject40 question limit
Question answersYesRather yesRather noNoUnknown
What changed
Source
Menu
Round

Round 3

Round 3

Identified Door handle in 28 counted questions.

Back to all Door handle rounds
Questions
28
Outcome
Solved
Format errors
No errors
Duration
11m 23s
Round cost
$0.6301 All 29 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.

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.

Q1
1 · Guesser asks

Is it a living organism (or a part of one)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a living organism (or a part of one)?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns No
Q2
1 · Guesser asks

Is it human-made (an artifact, machine, structure, or manufactured item)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it human-made (an artifact, machine, structure, or manufactured item)?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

The page describes how door handles are made: selecting material, designing the shape, making molds, and using casting, forging, or machining to shape the parts, followed by assembly and finishing. It identifies these as manufacturing processes for door handles.

Open fosunhardware.com
Source 02

Source summary (model-reported)

HOPPE describes its handle sets and window handles as high-quality brand products manufactured in certified European factories, and identifies them as architectural fitting products.

Open hoppe.com
2 · Answer check returns Yes
Q3
1 · Guesser asks

Is it a physical object (as opposed to an abstract concept, software, or information)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a physical object (as opposed to an abstract concept, software, or information)?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
Q4
1 · Guesser asks

Is it small enough for one person to carry by hand?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it small enough for one person to carry by hand?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

The product is a door handle with a 19 27/32-inch overall length, 11 13/16-inch center-to-center measurement, 2 3/4-inch projection, and 1-inch diameter.

Open mockett.com
Source 02

Source summary (model-reported)

For the DH6A-SSS door handle, listed as a small 19-3/4-inch door handle, the answer states that it weighs approximately 4 lb each.

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

Does it use electricity or electronics to function?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it use electricity or electronics to function?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

Many newer cars have replaced the tried-and-true door handle with complex electronic versions. ... exterior door handles ... remain flush against the door until the car is unlocked, requiring an electric motor to open. On many vehicles, interior door handles have been replaced by buttons that require electricity and motors to function.

Open consumerreports.org
Source 02

Source summary (model-reported)

Huf describes electronic door handles for passive entry and says an electric drive on flush-fitting door handles controls the outward and inward movement of the handle. It also describes door-handle electronics and integrated lighting concepts.

Open huf-group.com
2 · Answer check returns Unknown
Q6
1 · Guesser asks

Is it primarily used in a kitchen or for preparing/consuming food or drink?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used in a kitchen or for preparing/consuming food or drink?"}}
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 or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including exterior doors of residential ...

Open en.wikipedia.org
2 · Answer check returns No
Q7
1 · Guesser asks

Is it a tool or instrument used to perform work or a specific task (rather than clothing, toy, decoration, or container)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a tool or instrument used to perform work or a specific task (rather than clothing, toy, decoration, or container)?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Rather yes
Q8
1 · Guesser asks

Is it used for writing, drawing, or making marks?

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

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

2 · Answer check returns No
Q9
1 · Guesser asks

Is it used for personal grooming, hygiene, or health care?

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

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

2 · Answer check returns No
Q10
1 · Guesser asks

Is it used for measuring or indicating something (time, distance, weight, direction, temperature, etc.)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for measuring or indicating something (time, distance, weight, direction, temperature, etc.)?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

The supplied subject description defines the target as the handle fitting itself and describes it as a hand-operated fitting used to open and close a building door. It explicitly distinguishes the fitting from the whole door, lock mechanism, and constituent material.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

The document discusses automotive door-handle modules using Hall, inductive, and capacitive sensors for handle-position detection, door open/close detection, proximity detection, and button-press detection.

Open ti.com
2 · Answer check returns No
Q11
1 · Guesser asks

Is it used for cutting, sawing, or shaping materials?

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

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

Source 02

Source summary (model-reported)

Door handles belong to the category of hardware that performs both aesthetic and practical functions. ... Lever handles ... [activate] the latching mechanism ...

Open doorspluswindows.com
2 · Answer check returns No
Q12
1 · Guesser asks

Is it used for capturing, recording, or reproducing images or sound (e.g., camera, musical instrument, microphone)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for capturing, recording, or reproducing images or sound (e.g., camera, musical instrument, microphone)?"}}
Oracle evidence3 model-reported sources

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

Source 02

Source summary (model-reported)

The retrieved dictionary entry defines a door handle as the handle used to open and close a door, including knob-shaped and lever-shaped forms.

Open dictionary.com
Source 03

Source summary (model-reported)

Sony describes a camera handle equipped with an XLR adaptor that can connect external audio devices for recording sound. This concerns a camera accessory, not a door handle.

Open helpguide.sony.net
2 · Answer check returns No
Q13
1 · Guesser asks

Is it used for fastening, joining, tightening, or holding things together (e.g., hammer, screwdriver, wrench, clamp)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for fastening, joining, tightening, or holding things together (e.g., hammer, screwdriver, wrench, clamp)?"}}
Oracle evidence3 model-reported sources

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

Source 03

Source summary (model-reported)

The Builders Hardware Manufacturers Association distinguishes door bolts or fasteners as mechanical devices used to fasten a door in a closed position, separately from other door hardware.

Open buildershardware.com
2 · Answer check returns No
Q14
1 · Guesser asks

Is it used to produce light or fire (e.g., lamp, flashlight, candle, lighter)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used to produce light or fire (e.g., lamp, flashlight, candle, lighter)?"}}
Oracle evidence2 model-reported sources

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

Source 02

Source summary (model-reported)

The illuminating Zento door handle was designed as an added safety feature in the event of smoke from fire, electricity black-outs or other perilous scenarios. An independent wireless power system ensures the internal lamp is always ready for use.

Open yankodesign.com
2 · Answer check returns No
Q15
1 · Guesser asks

Is it used for cleaning or removing dirt/dust (e.g., broom, brush, vacuum, mop)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for cleaning or removing dirt/dust (e.g., broom, brush, vacuum, mop)?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns No
Q16
1 · Guesser asks

Is it used as a weapon or for hunting/fighting?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used as a weapon or for hunting/fighting?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

The report stated that a man grabbed a security vehicle’s driver-side door handle, broke it off, and threw it at a security officer, striking him in the face. The article identifies the incident as occurring on February 2, 2026.

Open bocadailynews.com
Source 03

Source summary (model-reported)

The source describes improvised weapons as common everyday objects that can be used in defensive applications, generally without being physically altered.

Open en.wikipedia.org
2 · Answer check returns No
Q17
1 · Guesser asks

Is it used for viewing or seeing things better (an optical device like a telescope, binoculars, magnifying glass)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for viewing or seeing things better (an optical device like a telescope, binoculars, magnifying glass)?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns No
Q18
1 · Guesser asks

Is it used mainly outdoors (e.g., for gardening, farming, travel, or protection from weather)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used mainly outdoors (e.g., for gardening, farming, travel, or protection from weather)?"}}
Oracle evidence2 model-reported sources

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

Source 01
Door handles or doorknobs are handles used to open or close a door. We stock Door Handles for all types of doors including exterior doors of residential and commercial buildings, internal doors, cupboard doors and vehicle doors.
Open lockdoctor.biz
Source 02
Passage door handles ... are typically used on closet and basement doors, and other interior doors that do not require a lock. Most interior doors have standard passage doorknobs or door levers that don't lock.
Open thespruce.com
2 · Answer check returns No
Q19
1 · Guesser asks

Is it used for communication, computation, or handling information (e.g., telephone, calculator, radio)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for communication, computation, or handling information (e.g., telephone, calculator, radio)?"}}
Oracle evidence2 model-reported sources

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

Source 02
The Kentix DoorLock-LE is a battery operated electronic door handle with radio... The electronics are fully integrated in the handle... The electronic door handle is networked by radio with an AccessManager radio.
Open docs.kentix.com
2 · Answer check returns Unknown
Q20
1 · Guesser asks

Is its main function to produce sound (e.g., bell, whistle, alarm)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its main function to produce sound (e.g., bell, whistle, alarm)?"}}
Oracle evidence1 model-reported source

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

Source 01

Source summary (model-reported)

A handle/lever ... turns the spindle which passes through the door and the tubular latch inside the door allowing the door to be opened. Pull handles ... are designed for pulling the door open or closed.

Open atlantichandles.com
2 · Answer check returns No
Q21
1 · Guesser asks

Is it used for securing, locking, or gaining access to something (e.g., lock, key)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for securing, locking, or gaining access to something (e.g., lock, key)?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

Some door levers have push-button locks ... while some may simply latch ... Door levers for exterior doors and other interior door handles needing keyed security.

Open schlage.com
Source 02

Source summary (model-reported)

The Keyed Entry function is for exterior, locking doors ... by using the key on the exterior. The Hall & Closet function is for interior, non-locking door.

Open kwikset.com
2 · Answer check returns Yes
Q22
1 · Guesser guesses

Key

A small metal instrument that is inserted into and turned in a lock to open or secure it

Validator rationale A key is a lock-operated instrument, whereas the target is the hand-operated fitting used to open and close a door.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"A small metal instrument that is inserted into and turned in a lock to open or secure it","name":"Key","question":null}}
2 · Validator returns No
Q23
1 · Guesser asks

Is it itself a locking device (something that is opened with a key, code, or similar), rather than the thing that opens it?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it itself a locking device (something that is opened with a key, code, or similar), rather than the thing that opens it?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

Dictionary.com defines a door handle as the handle used to open and close a door, and notes that door handles may be fixed or turning fittings.

Open dictionary.com
Source 03

Source summary (model-reported)

The source distinguishes standard latch handles, which operate a latch, from lock door handles that have a keyhole and operate a separate sash lock; it also describes some handles as non-locking.

Open atlantichandles.com
2 · Answer check returns No
Q24
1 · Guesser asks

Is it used to open a lock without using its proper key (e.g., a lock pick or crowbar)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used to open a lock without using its proper key (e.g., a lock pick or crowbar)?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns No
Q25
1 · Guesser asks

Is it used to restrain or secure a person or animal (e.g., handcuffs, leash)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used to restrain or secure a person or animal (e.g., handcuffs, leash)?"}}
Oracle evidence3 model-reported sources

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

2 · Answer check returns No
Q26
1 · Guesser asks

Is it a flat card, badge, or token that grants access (e.g., key card, ID badge, access card)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a flat card, badge, or token that grants access (e.g., key card, ID badge, access card)?"}}
Oracle evidence2 model-reported sources

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

Source 02
Door handles or doorknobs are handles used to open or close a door. ... Handles can also be locking handles such as the digital Locking Handles used on Hospital Wards.
Open lockdoctor.biz
2 · Answer check returns No
Q27
1 · Guesser asks

Is it normally attached to or installed on a door, gate, or lid (e.g., a handle, knob, latch, or hinge)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it normally attached to or installed on a door, gate, or lid (e.g., a handle, knob, latch, or hinge)?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

Dictionary.com defines a door handle as “the handle used to open and close a door” and notes that it can be a fixed vertical or horizontal bar or a turning handle.

Open dictionary.com
Source 02

Source summary (model-reported)

Dictionary.com defines a doorknob as “the handle or knob by which a door is opened or closed” and states that doorknobs are common on doors.

Open dictionary.com
Source 03

Source summary (model-reported)

HOPPE’s door-hardware glossary describes a backplate as a decorative plate that mounts to the face of the door and accepts the handle, and describes hardware activated by a handle in door systems.

Open hoppe.com
2 · Answer check returns Yes
Q28
1 · Guesser asks

Is it primarily grasped by the hand to open or pull the door (a handle or knob), rather than a bolt, latch, or chain that holds the door shut?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily grasped by the hand to open or pull the door (a handle or knob), rather than a bolt, latch, or chain that holds the door shut?"}}
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. Sometimes, it means the same thing as doorknob. 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 Yes
G
1 · Guesser guessesNot counted

Doorknob

A round handle attached to a door that is turned to open the door's latch

Validator rationale A doorknob is a recognized subtype of door handle and retains the target’s defining function of operating a door latch.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"A round handle attached to a door that is turned to open the door's latch","name":"Doorknob","question":null}}
2 · Validator returns Yes