This Sudoku solution method is great for beginners and advanced users alike. The key is to analyse the 3x3 blocks and remember the "one digit" rule. For instance, we can see that the block has one free cell, and we've already entered 1, 2, 3, 4, 5, 6, 7, and 8. That means we just need to enter 9.
Similarly, take a look at the columns or rows, and remember the "one digit" rule. If there's one free cell left and we've already entered 1, 2, 3, 4, 5, 6, 7 and 8, So the only thing left to do is enter 9. That's all there is to it!
The Sudoku technique "Last Free Cell" is seen as a good, solid starting point. It's a great place to start for anyone new to the game. More experienced players use the same technique and combine it with others to get the best results. Once you've got to grips with the 'Last Free Cell' technique, you can move on to the next one.
Choose techniques from the selection, combine them with each other and create your own approaches to solving easy Sudoku and hard!