Full House
When a row, column or box has one gap left, the digit that is missing goes there.
All candidates have been entered in the empty cells.
cell A is the only empty cell in block B. Therefore, cell A is 4.
When a row, column or box has one gap left, the digit that is missing goes there.
All candidates have been entered in the empty cells.
cell A is the only empty cell in block B. Therefore, cell A is 4.