Seven people sit in a circle, and each makes the same accusation about the person to their right. Sometimes the shape of a problem matters more than the words.
The chain of lies (7 in a circle)
Riddle statement
Seven people are seated in a circle. Each says exactly:
> “The person to my right is a liar.”
Each person is one of two types:
- a truth-teller, who always tells the truth;
- a liar, who always lies.
Can such an arrangement exist?