alleryStart learning →In a 9x9 sudoku, a cell's row has 1, 2, 3, 4, its column has 5, 6, 7, and its box has 8. Which digit must go in it?
A5
B9
C8
D4
Answer & Solution
Correct answer: B. 9
Digits 1 to 8 are all blocked by its row, column or box, so only 9 can go there.
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