Problem 10 · Check two conditions · 3 points
Made by AI and not reviewed by a real person.
Cover two squares so the two you can still see have the same shade, and neither is beside the empty box. Which squares do you cover?

- the second and third squares
- the second and fourth squares
- the first and third squares
- the first and second squares
- the third and fourth squares
Show a hint
- Check both clues about the squares left showing, not just whether their shades match.
- Which square is beside the empty box? It cannot be one of the squares left showing.
Show the answer and solution
Answer: B — the second and fourth squares
Cover the second and fourth squares. The first and third are both light, and neither is beside the empty box. Covering the first and third is tempting because the two squares left showing are both dark, but one of them is beside the empty box.