Sudoku Game Code in C Language with Source Code

Sudoku Game Code in C Language with Source Code

This Sudoku Programming in C teaches you how to create and solve Sudoku problems using computer programs. One of the most well-known classic games is Sudoku. Sudoku uses a 99 square grid as its playing grid. The game starts with 9 squares that combine rows and columns. Every one of these nine squares is a different grid of 33 square areas.

There are 9 squares in each row and column. It can be a one-player or two-player game in which the participants aim to fill the boxes as quickly as possible. The goal of the game is to fill boxes with numbers ranging from 1 to 9 in each square. The thrilling aspect of the Sudoku game is that no number can be repeated in any column, row, or square.

Sudoku Game Code in C Language it include a free Download Source Code. Simply locate the downloadable source code below and click the “Download Now” button. To start creating a Calculator in C Language, make sure that you have a Code Blocks or any platform of C installed in your computer.

Project Name : Sudoku Game
Project Platform :C/C++
Programming Language Used:C Programming Language
Developer Name
IDE Tool (Recommended):Dev-C++/Codeblocks
Project Type :Desktop Application
Database:Stores data in .DAT file
Upload Date and Time:July 21, 2021- 8:09 am
Sudoku Game Code in C Language with Source Code Overview

Sudoku Game Code in C Language Steps on How to Create a Project

Time needed: 5 minutes.

Here’s the step’s on how to create a Sudoku Game Code in C Language with Source Code.

Sudoku Game in C Language with Sour...
Sudoku Game in C Language with Source Code | C Language Projects with Source Code
  • Step 1: Create a new project.

    First open the code blocks IDE and click “create a new project“.
    Create a Project For Sudoku Game Code in C Language with Source Code

  • Step 2: Choose console application.

    Next, click the “console application” and after that click “next“.
    Click Console for Sudoku Game Code in C Language with Source Code

  • Step 3: Choose C language.

    Then , choose “C language” and click “next“.

  • Step 4: Name your project.

    Lastly, name the project you’ve created and click “next” after that click “finish“.

  • Step 5: The actual code.

    Finally, we will now start adding functionality to our C Framework by adding some functional codes.

This Sudoku Game Code in C Language was build and run under Code::Blocks IDE.

  • This is the code to fill the board.
for (row = 0; row < 36; row++)
		for (col = 0; col < 36; col++)
			data[row][col] = 0;
  • This is the function to check if default board is broken.
if (copy[row][col] != 0)
				if (checkinvalid(copy, row, col) == 1)
					return -1;
  • Function to fill in the empty space.
for (space = 1; space <= boardrow; space++)
  • Function to check if it is duplicates.
invalidflag = checkinvalid(copy, row, col);
  • The Function for determining whether a value should go into a position(Sudoku Programming in C)
int i, j, k;
	int nonetrow, nonetcol;

	for (i = 0; i < boardrow; i++)
  • Function to check to check row and columns for invalid
if ((i == row)); 
		else if (copy[row][col] == copy[i][col])
			return 1;

		if ((i == col)); 
		else if (copy[row][col] == copy[row][i])
			return 1;
  • Function to actually print data into square(Sudoku Programming in C)
if (board[row-1][col-1] != 0)
					if ((board[row-1][col-1]) > 9)
						printf(" %d", board[row-1][col-1]);
						printf(" %d ", board[row-1][col-1]);
  • The Function if it has passed or go to next level
if (invalidflag == 0)
						status = solver(copy, 0); 

						if ( status > 0)
							return status; 

						else if ( status == -1 )
							return -1; 
  • Function to start at two after the end of “rows”(Sudoku Programming in C)
for (i = 5; i < strlen(command); i++)
				boardrow = 10*boardrow + (command[i] - '0');

				case 4: nonetsize = 2; break;
				case 9: nonetsize = 3; break;
				case 16: nonetsize = 4; break;
				case 25: nonetsize = 5; break;
				case 36: nonetsize = 6; break;
					printf("Rows/columns number must be the square of an integer.\n");
					boardrow = temp;

Downloadable Source Code


In Conclusion, Developers have always a strong desire to create games. It aids in the exploration of a language’s fundamental notions as well as the development of the developer’s creativity. Despite the fact that there are hundreds of languages in which to make games, developers choose to stick to a few programming languages. For a better experience, game makers frequently propose C Language.


If you have any questions or suggestions about Sudoku Game Code in C Language with Source Code, please feel free to leave a comment below.

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