Clues & Culprits › Clue types › Corner and edge clues
Corner and edge clues
Counts of the four corner seats, or of everyone on the outer ring of the grid.
Exactly two of the four people in the corners are criminals.
The four corners are the four outermost seats (A1, the top-right card, the bottom-left card and the bottom-right card). The edge is the whole outer ring, corners included: on a 4×5 board that is 14 people.
How to read it
Like every count in Clues & Culprits, these are exact budgets. "Exactly two of the four people in the corners are criminals" leaves no room for a third. "Everyone in the corners is innocent" clears four people in one go.
How it combines with other clues
Corner seats sit at the end of two lines and inside the smallest neighbor frames (three neighbors), so corner clues tend to combine with row and column counts and with neighbor clues from the people next to the corner.
Real examples from recent cases
Exactly one of the four people in the corners is a criminal.— Dina, nurse (D1) in Oct 25, 2026 Hard: An Allergy to Tuesdays
Exactly six of the sixteen people on the edges are criminals.— Ursula, judge (A5) in Oct 25, 2026 Evil: Duck 1,417 Wins by Thirty Yards
Exactly five of the fourteen people on the edges are criminals.— Hana, champagne caterer (D2) in Oct 24, 2026 Hard: The Favourite Who Took a Nap
Exactly four of the twelve people on the edges are criminals.— Ivan, engineer (A3) in Oct 22, 2026 Easy: The Coffin Car to Vienna
Questions
What does “Exactly two of the four people in the corners are criminals.” prove?
Counts of the four corner seats, or of everyone on the outer ring of the grid.
Where do corner and edge clues appear most?
In every difficulty. In Easy cases they usually settle someone on their own; in Hard cases they tend to combine with other clues.
Next: Same-verdict and exactly-one clues · All types: Neighbor clues · Row and column clues · Profession clues · Above, below, left and right · Between clues · Same-verdict and exactly-one clues · more