Sunday 8 November 2026 · Knights and knaves · Tough
Kind of thinking: DeductionYukti #30 is a Tough knights and knaves, the puzzle for Sunday 8 November 2026. Yukti, a daily logic puzzle at playyukti.com, gives everyone the same puzzle each day. Here is the puzzle; its route appears here once the free week is over.
The puzzle
Who is lying?
On this island, knights always tell the truth and knaves always lie. Mark each islander. Every mark must be a certain deduction, not a guess.
- Ana says: “Leo is a knight, and Tomas is a knight.”
- Ivan says: “Mira is a knave.”
- Leo says: “It's not true that Ivan is a knave.”
- Tomas says: “Ivan is a knight.”
- Mira says: “Either Sam is a knight, or Leo and I are the same kind.”
- Sam says: “Either Ana and I are different kinds, or at most 3 of us are knights.”
In the free week (the past 7 days)
Free to play until Sun 15 November. The route appears here the same day, once nobody can still be playing it.
Play this puzzle