1Read the case
The case summary is shown on the right. Spot what feels off.
How to play
How to Play
Turtle soup is a short mystery game solved through questions.
Read the case, then ask questions that can be answered with yes or no. As you confirm facts, you narrow down the truth. Once the core is identified, the answer is revealed.
2Ask questions
Use yes-or-no questions to narrow down clues.
3Make a guess
Summarize what happened in one clear statement.
Example Questions
- Did the victim know the culprit?
- Was evidence intentionally planted?
- Was this disguised as an accident?
How does the AI judge answers?
This site uses OpenAI `gpt-5-nano` for judging. It compares your last message against the answer and key points and returns `YES / NO / IRRELEVANT`. Separately, it decides whether you have essentially solved the case as `true/false`.