This case cannot be solved by common sense.

Welcome to "221B - Detective's Strange Reasoning Record Trial Version".

This game is a new type of "lateral thinking reasoning game" in which you unravel the truth hidden behind mysterious situations presented as fragments of a story (topics) through dialogue with the detective.

Your partner, the detective, is the latest AI (large-scale language model). Chat with him to get to the heart of the case.

[Game appeal]

◆ "Lateral thinking" tests your reasoning skills ◆
At first glance, the situation seems strange and unnatural. What is the truth hidden behind it?

In this game, free thinking that is not bound by stereotypes and assumptions, so-called "lateral thinking," is the key to solving the mystery.

Try to use your brain to the fullest and ask questions that no one else would think of.

◆ Your partner is the latest AI! A new type of interactive reasoning experience ◆
You can freely ask questions about the case by text or voice input.
The AI detective will answer your questions with three simple responses: "Yes," "No," and "Not relevant." The process of extracting information that leads to the truth from limited clues and building a theory is a new gaming experience that has never been seen before. The detective's facial expressions change depending on the detective's response, so his reactions may also be material for your theory.

◆Full of replay value◆
When you solve the case, your theory will be ranked S, A, or B based on the number of questions and the number of hints used. Aim for the highest score of "Overall S" for all the themes!
In addition, some themes have special rules such as "time limit," "number of questions limited," and "no hints allowed." Will your reasoning skills be able to show their true value in a different tension than usual?

[Basic gameplay]

Check the theme: First, read the theme that describes a mysterious situation and understand what the mystery is.

Ask the detective: Ask the detective about things that you are curious about or want to confirm. Each time you ask a question, stamina is consumed.
Construct your theory: Use the AI detective's "Yes/No/Don't care" responses as hints to gradually get closer to the truth.

[Useful features]
Hint: If you get stuck on your theory, use the "Hint" feature. It will give you important clues that will lead you to the truth. However, using hints will consume stamina and affect your score.

Surrender: If you just can't figure it out, you can "surrender". You can consume stamina to check the answer.

[Recommended for]
- People who like detective novels and mystery dramas
- People who like solving puzzles, werewolf, and escape games
- People who want to train their logical thinking and imagination
- People who want to experience a new type of game that has never been seen before
- People who are interested in interacting with AI

[Notes]
This app is a trial version of "221B - Detective's Strange Reasoning Record".

Due to the nature of this app using dialogue with AI (large-scale language model), it may generate unintentionally inappropriate expressions or responses that directly suggest the answer.

221B -探偵の奇妙な推理録- (体験版)