Opensource Yeah this is the sole reason i posted this here. Yeah this program is opensource and is completely made up of C. It does not comply with the latest ANISI standars but i hope it will do for now.
Code:
/*This program has been licensed under GNU License Agreement. You must comply with it if you want to use this code or modify it.*/
#include "graphics.h"
#include "conio.h"
#include "dos.h"
#include "process.h"
#include "stdio.h"
int s[9][9]={
{7,9,0,0,0,8,0,5,2},
{1,0,3,6,0,2,8,0,7},
{0,0,0,0,0,0,0,0,0},
{0,0,1,9,0,6,5,0,0},
{0,7,0,5,0,4,0,1,0},
{0,0,2,3,0,1,4,0,0},
{0,0,0,0,0,0,0,0,0},
{9,0,8,1,0,3,7,0,5},
{5,3,0,0,0,0,0,6,8}
};
int sback[9][9]={
{7,9,0,0,0,8,0,5,2},
{1,0,3,6,0,2,8,0,7},
{0,0,0,0,0,0,0,0,0},
{0,0,1,9,0,6,5,0,0},
{0,7,0,5,0,4,0,1,0},
{0,0,2,3,0,1,4,0,0},
{0,0,0,0,0,0,0,0,0},
{9,0,8,1,0,3,7,0,5},
{5,3,0,0,0,0,0,6,8}
};
int loop,flag=0,posx=20,posy=50,arrayx=0,arrayy=0;
main()
{
int gd=DETECT,gm,key;
/*Replace the path below with the path in which BGI files lie in your computer*/
initgraph (&gd,&gm,"c:\\tc\\bgi");
printf ("How to Play Sudoku");
printf ("\n--------------------------------\n");
printf ("\n[Press any key to skip and start the game]\n");
printf ("\nFill the boxes with digits in such a manner that every column and every row and every 3x3 box accommodates the digits 1 to 9, without repeating any.");
getch();
clearviewport();
intro();
clearviewport();
screen();
key=getkey();
while (key!=1)
{
switch (key)
{
case 72:up();break;
case 80:down();break;
case 75:left();break;
case 77:right();break;
case 11:zero();break;
case 10:nine();break;
case 9:eight();break;
case 8:seven();break;
case 7:six();break;
case 6:five();break;
case 5:four();break;
case 4:three();break;
case 3:two();break;
case 2:one();break;
case 1:exit(0);
}
key=0;
key=getkey();
}
}
intro()
{
setcolor (WHITE);
rectangle (5,5,630,475);
settextstyle (8,HORIZ_DIR,9);
outtextxy (125,180,"su|do|ku");
settextstyle (2,HORIZ_DIR,6);
outtextxy (120,440,"Loading Complete, Press any key to play!");
getch();
}
screen()
{
int j,h,x=40,y=70,temp,i;
settextstyle (8,HORIZ_DIR,4);
outtextxy (0,0,"su|do|ku");
rectangle (20,50,380,410);
for (i=20;i<=380;i=i+40)
line (i,50,i,410);
for (i=50;i<=410;i=i+40)
line (20,i,380,i);
setlinestyle (0,0,3);
for (i=20;i<=380;i=i+120)
line (i,50,i,410);
for (i=50;i<=410;i=i+120)
line (20,i,380,i);
setlinestyle (0,0,0);
rectangle (405,50,620,410);
rectangle (20,420,620,470);
settextstyle (2,HORIZ_DIR,8);
outtextxy (435,50,"Instructions");
settextstyle (2,HORIZ_DIR,5);
outtextxy (410,80,"> Use arrow keys to");
outtextxy (410,95," navigate through boxes");
outtextxy (410,110,"> To select a box press the");
outtextxy (410,125," Enter key");
outtextxy (410,140,"> The currently selected");
outtextxy (410,155," box is marked in red color");
outtextxy (410,170,"> Press a number to fill");
outtextxy (410,185," the box with that number");
outtextxy (410,200,"> Press Esc to exit");
setcolor (RED);
rectangle (20,50,60,90);
for (j=0;j<9;j++)
{
for (h=0;h<9;h++)
{
if (s[j][h]!=0)
{
switch (s[j][h])
{
case 1:outtextxy (x,y,"1");break;
case 2:outtextxy (x,y,"2");break;
case 3:outtextxy (x,y,"3");break;
case 4:outtextxy (x,y,"4");break;
case 5:outtextxy (x,y,"5");break;
case 6:outtextxy (x,y,"6");break;
case 7:outtextxy (x,y,"7");break;
case 8:outtextxy (x,y,"8");break;
case 9:outtextxy (x,y,"9");break;
default:outtextxy (x,y," ");break;
}
}
x=x+40;
}
x=40;
y=y+40;
}
}
getkey()
{
union REGS i,o;
while(!kbhit())
;
i.h.ah=0;
int86(22,&i,&o);
return (o.h.ah);
}
up()
{
if (arrayx>0)
{
setcolor (WHITE);
rectangle (posx,posy,posx+40,posy+40);
arrayx=arrayx-1;
posy=posy-40;
setcolor (RED);
rectangle (posx,posy,posx+40,posy+40);
}
}
down()
{
if (arrayx<8)
{
setcolor (WHITE);
rectangle (posx,posy,posx+40,posy+40);
arrayx=arrayx+1;
posy=posy+40;
setcolor (RED);
rectangle (posx,posy,posx+40,posy+40);
}
}
left()
{
if (arrayy>0)
{
setcolor (WHITE);
rectangle (posx,posy,posx+40,posy+40);
arrayy=arrayy-1;
posx=posx-40;
setcolor (RED);
rectangle (posx,posy,posx+40,posy+40);
}
return(NULL);
}
right()
{
if (arrayy<8)
{
setcolor (WHITE);
rectangle (posx,posy,posx+40,posy+40);
arrayy=arrayy+1;
posx=posx+40;
setcolor (RED);
rectangle (posx,posy,posx+40,posy+40);
}
return (NULL);
}
zero()
{
if (sback[arrayx][arrayy]==0)
{
s[arrayx][arrayy]=0;
setcolor (BLACK);
outtextxy (posx+20,posy+20,"Û");
}
return (NULL);
}
one()
{
if (s[arrayx][arrayy]==0)
{
for (loop=0;loop<9;loop++)
{
if (s[arrayx][loop]==1 || s[loop][arrayy]==1)
flag=1;
}
if (flag!=1)
{
s[arrayx][arrayy]=1;
setcolor (WHITE);
outtextxy (posx+20,posy+20,"1");
}
else {flag=0;}
}
}
two()
{
if (s[arrayx][arrayy]==0)
{
for (loop=0;loop<9;loop++)
{
if (s[arrayx][loop]==2 || s[loop][arrayy]==2)
flag=1;
}
if (flag!=1)
{
s[arrayx][arrayy]=2;
setcolor (WHITE);
outtextxy (posx+20,posy+20,"2");
}
}
flag=0;
return (NULL);
}
three()
{
if (s[arrayx][arrayy]==0)
{
for (loop=0;loop<9;loop++)
{
if (s[arrayx][loop]==3 || s[loop][arrayy]==3)
flag=1;
}
if (flag!=1)
{
s[arrayx][arrayy]=3;
setcolor (WHITE);
outtextxy (posx+20,posy+20,"3");
}
}
flag=0;
return (NULL);
}
four()
{
if (s[arrayx][arrayy]==0)
{
for (loop=0;loop<9;loop++)
{
if (s[arrayx][loop]==4 || s[loop][arrayy]==4)
flag=1;
}
if (flag!=1)
{
s[arrayx][arrayy]=4;
setcolor (WHITE);
outtextxy (posx+20,posy+20,"4");
}
}
flag=0;
return (NULL);
}
five()
{
if (s[arrayx][arrayy]==0)
{
for (loop=0;loop<9;loop++)
{
if (s[arrayx][loop]==5 || s[loop][arrayy]==5)
flag=1;
}
if (flag!=1)
{
s[arrayx][arrayy]=5;
setcolor (WHITE);
outtextxy (posx+20,posy+20,"5");
}
}
flag=0;
return (NULL);
}
six()
{
for (loop=0;loop<9;loop++)
{
if (s[arrayx][loop]==6 || s[loop][arrayy]==6)
flag=1;
}
if (flag!=1)
{
if (s[arrayx][arrayy]==0)
{
s[arrayx][arrayy]=6;
setcolor (WHITE);
outtextxy (posx+20,posy+20,"6");
}
}
flag=0;
return (NULL);
}
seven()
{
if (s[arrayx][arrayy]==0)
{
for (loop=0;loop<9;loop++)
{
if (s[arrayx][loop]==7 || s[loop][arrayy]==7)
flag=1;
}
if (flag!=1)
{
s[arrayx][arrayy]=7;
setcolor (WHITE);
outtextxy (posx+20,posy+20,"7");
}
}
flag=0;
return (NULL);
}
eight()
{
if (s[arrayx][arrayy]==0)
{
for (loop=0;loop<9;loop++)
{
if (s[arrayx][loop]==8 || s[loop][arrayy]==8)
flag=1;
}
if (flag!=1)
{
s[arrayx][arrayy]=8;
setcolor (WHITE);
outtextxy (posx+20,posy+20,"8");
}
}
flag=0;
return (NULL);
}
nine()
{
for (loop=0;loop<9;loop++)
{
if (s[arrayx][loop]==9 || s[loop][arrayy]==9)
flag=1;
}
if (flag!=1)
{
if (s[arrayx][arrayy]==0)
{
s[arrayx][arrayy]=9;
setcolor (WHITE);
outtextxy (posx+20,posy+20,"9");
}
}
flag=0;
return (NULL);
}
Sudoku: The game. My first game.
and i made it for my school exhibition. I got the idea from someone eho made Sudoku in Java and posted here. Whoever he is thanks for the help he unknowingly had done to me 
Linear Mode
