Study guides › Level 8 · Detective

Five-friend clue puzzles

Level 8 · for who-has-what puzzles with five friends

💡 The idea

Each friend has exactly one thing, and each thing belongs to exactly one friend. A grid keeps track.

🪜 The steps

1. Draw a grid: friends down the side, things across the top.
2. Mark ✓ for “has” clues and ✗ for “does not have”.
3. When a row has only one empty box, it must be ✓. Same for a column.
4. A ✓ means ✗ for the rest of its row and column.

⚠️ Watch out

• Keep going round the grid: one new ✓ often unlocks the next.

🎯 Try these

1. Three friends, three pets. A has the cat. B doesn’t have the dog. Who has the dog?

Answers: 1) C (B has the fish)

This guide is also in the 10LogicQ app: tap “📖 Study guide” after a puzzle.