Question 25
Fill the figure with numbers so that each shaded square is surrounded by all digits from 1 to 8. Find the value of “?”.
“Surrounded” means the eight neighbouring squares, including diagonal neighbours; each of the digits 1–8 occurs exactly once around each shaded square.
Enter a whole number without units. The original answer sheet uses four digits with leading zeros (for example, 7 as 0007); leading zeros are optional here.
“Surrounded” means the eight neighbouring squares, including diagonal neighbours; each of the digits 1–8 occurs exactly once around each shaded square.
Enter a whole number without units. The original answer sheet uses four digits with leading zeros (for example, 7 as 0007); leading zeros are optional here.