SU-DOKU 4 STARTERS

There’s no “right” place to start a Su Doku, but I’m going to start with the 3 regions (boxes) across the top of the grid.
In these boxes, you will see there is a 3 in the first and third region. The first 3 is in the third row; the 3 in the last box is in the second row. Because we know that each number must appear once in each row, and in each column, this tells us that the 3 in the middle box must be in row one. And given that there is only one empty cell, or square, in the top row of box 2, that is where you will write in the number 3.
You can then use the same process on the right-hand regions to determine where the 9 goes in the top box. From there, you can easily figure out where the 9 should go in the top left-hand region, after looking at the two regions below it.
Another step is to reduce or eliminate possible positions a number can be placed. If you look, for example, in the first box, you’ll see a 2 in the second row. In the second box, the 2 is in the bottom row. Since each number must appear once in each row, you now know that in the third box, the 2 will be in the top row.
Then, looking at the last three columns, you’ll see a 2 in the first column. So the 2 in the top right box will go either in the middle or right-hand cell.
You can continue this process for the 8’s in the left-hand regions, and so on. In this way, you can reduce or eliminate the positions where a number may appear, and thus fill in the blanks.
At this point, logical analysis kicks in until you can reduce the number of possibilities for each cell to just one number.
Good luck, and let us know how you enjoyed the game