# "Last Digit" Sudoku technique explanation:

Singles are the most basic and easy-to-understand techniques in solving sudoku puzzles. The **Last Digit** is the easiest and most understandable of them all.

It simply means the last digit that can be placed to correctly solve the Sudoku puzzle.

__An example:__

We can see that there is only one empty cell that remains in this number puzzle, it is marked with a blue square.

Take a look at the house marked with the blue square, the only missing number in this house is 1, so 1 is the last digit.

A house is a full set of numbers between 1-9 it can be a row, block, or column. If it is not the last digit, it is often called **"Full House"**