# Playing Sudoku. Logical Number Placement and Calculation

Sudoku is known to be one of the most famous puzzle games you can find. The primary goal of the game is to add numbers to the 9×9 grid. You have to make sure that each column and 3×3 section has the numbers from 1 to 9. Sudoku is also famous for being a challenging adventure in logic. By playing sudoku daily, you increase your memory capabilities and test your logic.

The origins of sudoku suggest that the game was initially based on the placement of numbers in the correct position. However, the gamers do not need to worry about the academic aspect of the game. You don’t have to be good at math to solve the puzzles. No special calculations are needed to complete the rounds. If you manage to finish the game on time, you will find that the sudoku grid resembles a specific type of Latin square. The only difference is the added feature of no repeated values in the 3×3 cells.

## Using Logic to Complete the Game. Find the Missing Digits

When you start playing the game, you will see that some squares in the grid have already been filled. Your task is to find the missing numbers and complete the 9×9 grid. The grid is incomplete if:

• A 3×3 grid has two same numbers from 1 to 9
• A column has two same numbers from 1 to 9
• A row has two same numbers from 1 to 9

To avoid number confusion, try strategies that involve solving the puzzles from the classic sudoku games.

### General Sudoku Solving Options: Express Tactics for Winning

The issue with sudoku puzzles is the blocks that occur on 2×2 grids. If you are using computer-based algorithms for the game, you should know that it is only effective for 9×9 puzzles. In case the limit for the number placement is created, it can lead to the combinational explosion of numbers.

You may know that the number of complete grids in the game is available to the players, while the minimal number in the 9×9 grids is never disclosed. A minimal puzzle is defined as a puzzle where no clues can be omitted without losing the originality of the solution. According to the statistical data on the puzzle solutions, minimal puzzles with 0.06% relative error can exist within the grid.