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
- 6
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 2m 1s
- Round cost
- $0.0712 All 7 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":"video_game_character","event":"BEGIN","variation_token":"XSZW5TRZ"}Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.
Is the character human?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character human?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Shigeru Miyamoto described Mario as “a person” and referred to him as an Italian plumber.Open syfy.com (opens in a new tab)
Is the character male?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character male?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Gender: MaleOpen mascots.fandom.com (opens in a new tab)
Is the character from the Super Mario series?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character from the Super Mario series?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Mario The fictional character Mario from Nintendo's Super Mario Bros. video game franchise.Open britannica.com (opens in a new tab)
Is the character playable in the main Super Mario series?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character playable in the main Super Mario series?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
the entire adventure is playable in Co-op Play. You and a friend ... can play as Mario and LuigiOpen nintendo.com (opens in a new tab)
Is the character primarily associated with the color green?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character primarily associated with the color green?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Super Mario is instantly recognisable by his red overalls... his iconic red cap.Open thenvm.org (opens in a new tab)
Mario's iconic outfit... distinct red-and-blue colour scheme.Open nintendostoreuk.queue-it.net (opens in a new tab)
Is the character primarily associated with the color red?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the character primarily associated with the color red?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Mario is ... instantly recognizable with his blue overalls, red cap, and trademark moustache.Open mario.nintendo.com (opens in a new tab)
Perhaps the most explicit expression of the Italian plumber’s identity is his iconic red cap.Open thenvm.org (opens in a new tab)
Mario
The iconic red-hatted plumber protagonist of the Super Mario series
Validator rationale The proposed identity matches Mario, the Nintendo video-game character and protagonist of the Super Mario series.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"The iconic red-hatted plumber protagonist of the Super Mario series","name":"Mario","question":null}}