Knights and Knaves: Alice, Ivan, and Mallory
Verified— unique solution
knights knaves
On an island, every inhabitant is either a knight, who always tells the truth, or a knave, who always lies. You meet Alice, Ivan, and Mallory.
Alice says: "Ivan is a knight."
Mallory says: "Ivan is a knave or I am a knave."
The others say nothing.
Who is a knight and who is a knave?
Hints
Hint 1
Hint 2
Hint 3
Solution
Commit an attempt to unseal the proof. Write your answer — right or wrong, thinking it through is the point.
Once you've worked out who is who: how many of the 3 inhabitants are knaves? Answer with the number.
Rate this puzzle
Report a problem with this puzzle
Comments
No comments yet
Be the first to say something about this puzzle.