1. Align Numbers Horizontally and Vertically To Exclude
Aligning numbers horizontally and vertically is the easiest way for you to find a suitable number for the position to be filled in, find out which numbers appear on the screen the most, and align it horizontally. , along to the cell you need to find, because in each 3x3 cell the position is unique, so any position that is not on the same horizontal and vertical line is the position to find.
However, this Sudoku (see ) trick is only applicable to a simple, medium level. On the difficulty level in the first place you won't be able to apply this way.
2. Find Duplicate Cells To Exclude For Search Cells
The first step to finding numbers is the easiest to find duplicates so that you can find the most appropriate place to fill in the number boxes. As in the image above you will see that we focus on finding the number 5 in the lower position, when the line number 5 from the cells in the row will exclude the number 5 below that is located. But of course in this Sudoku trick you will see that position 5 still has 1 of 2 boxes to fill, but we can use draft test to give more accurate results.
3. Fill in the Numbers and Compare with Other Rows
In Sudoku each number must be unique as the rule said, in the picture above you will see we need to enter the numbers 2, 5, 7, and 9. Here it is easy to see the number 7 when aligning both the top and bottom rows. will result that the middle cell is 7 and leaves 2, 5 and 9. Continuing to compare how the row we will see above can only fill 2 or 5, so the next 7 edge should be 9. To be able to find notes 2 and 5 we have to manipulate the vertical and horizontal rows to solve those rows before having the correct answer structure. At this point you can enter the trial number and continue the solution if there are no more suggestions for you, but please note that entering the trial number sometimes also leads to a series of errors.
