int res;
res=strncmp(c1, "exit",4);
if (res==0)  // strings match.
...
//for case insensitive.  Since the string needs to match exactly so the \n is added.
res=strcasecmp(c1,"exit\n");
if ( res==0) 
...

#ifdef _Windows
  #define strcasecmp _stricmp
  #define strncasecmp _strnicmp
#else
  #define _stricmp strcasecmp
  #define _strnicmp strncasecmp
#endif

if (strncmp(c1, "EXIT\n", 4) == 0 || strincmp(c2, "EXIT\n", 4) == 0)

// Changing coordinate values to integers
int getIntValue(char x)
    {
	return x - '0';
    }

int getCharIntValue(char x)
    {
	return toupper(x) - 'A';
    }

//Check if the word correct
int checkIfWin(char wordFound[], int win)
{
	int i;

	for (i = 0; i < 4; i++)
	{
		if (strncmp(wordFound, fourWords[i], strlen(wordFound)) == 0)
		{
			win++;
		}
	}
	return win;
}

void playGame()
{
	char c1[5], c2[5];
	char wordFound[10] = " ";
	int i, j, k, l, m, d, x, win = 0;

	do
	{
		printf("\nEnter first coordinate and press Enter: ");
		fgets(c1, 5, stdin);

		if (strncmp(c1, "EXIT\n", 4) == 0 || strncmp(c2, "EXIT\n", 4) == 0)
		{
		//	WordSearch();
		}

		printf("Enter last coordinate and press Enter: ");
		fgets(c2, 5, stdin);

		if (strncmp(c1, "EXIT\n", 4) == 0 || strncmp(c2, "EXIT\n", 4) == 0)
		{
		//	WordSearch();
		}

		if (c1[1] == c2[1])
		{
			// Horizzontal Word
			d = 0;
			memset(wordFound, 0, sizeof(wordFound));

			for (i = getCharIntValue(c1[0]); i <= getCharIntValue(c2[0]); i++)
			{
				wordFound[d] = puzzle[getIntValue(c1[1])][i];
				d++;
			}

			printf("Word Found is '%s'", wordFound);

			win = checkIfWin(wordFound, win);
			printf("\nWords found are: %d\n", win);
		}
		else if (getCharIntValue(c1[0]) == getCharIntValue(c2[0]))
		{
			// Vertical Word
			d = 0;
			memset(wordFound, 0, sizeof(wordFound));

			for (i = getIntValue(c1[1]); i <= getIntValue(c2[1]); i++)
			{
				wordFound[d] = puzzle[i][getCharIntValue(c1[0])];
				d++;
			}

			printf("Word Found is '%s'", wordFound);

			win = checkIfWin(wordFound, win);
			printf("\nWords found are: %d\n", win);
		}
		else
		{
			j = getCharIntValue(c1[0]);
			k = getIntValue(c1[1]);
			l = getCharIntValue(c2[0]);
			m = getIntValue(c2[1]);
			d = 0;
			x = 0;

			memset(wordFound, 0, sizeof(wordFound));

			for (i = j; i <= l; i++)
			{
				wordFound[d] = puzzle[k + x][j + x];
				d++;
				x++;
			}

			printf("Word Found is '%s'",wordFound);

			win = checkIfWin(wordFound, win);
			printf("\nAmount of words found is: %d\n", win);
		}
	}
	while (win != 4);
	printf("\nThe End!\n");
	return ;
}

//Create a user-interactive menu in normal/console colours
void mainMenu()
{
    printf("\033[0m");
    char menuChoice;
    do
    {
        printf("\n~~~ DAILY CROSSWORD ~~~\n");
        printf("1. Play\n");
        printf("3. Exit\n");
        printf("\nWhat would you like to do: \n");

        while((menuChoice = getchar()) == '\n');

        switch (menuChoice)
        {
            case '1': displayPuzzle();
                printf("\n------------------------");
                printf("\nUse coordinate to solve\nthe puzzle; i.e. C3 G3\n");
                printf("------------------------\n");
                //printf("Enter your co-ordinate\n");
                playGame();
                break;
        }

    } while (menuChoice != '3');
}

int main(int argc, char *argv[])
{
    srand(time(NULL));

    createBlankPuzzle();
    displayPuzzle();
    fillPuzzleWithWords();
    displayWords();

    mainMenu();
    getchar();
    getFourRandomWords();

    printf("Thank you for playing today! :)\nGood Bye\n");

    return 0;
}

          case '1': displayPuzzle();
                printf("\n------------------------");
                printf("\nUse coordinate to solve\nthe puzzle; i.e. C3 G3\n");
                printf("------------------------\n");
                //printf("Enter your co-ordinate\n");
                while ((getchar()) != '\n');  //clear buffer
                playGame();
                break;