Range Error

[Ruby The Roobster]

So, here is the full code:

```d
enum Color {none=0,red=1,black=2};
enum sColor {black=0,white=1};
class Square {
public:
     this(Color color, sColor Scolor) {
     this.color = color;
     this.Scolor = Scolor;
     }
     Color color;
     sColor Scolor;
}
import std.stdio;
void cPrintboard(Square[8][8] square)
{
     for(int i=0;i<8;i++)
     {
         for(int j=0;j<8;j++)
         {
             final switch(square[i][j].color) {
             case Color.none:
                 write(" n ");
                 break;
             case Color.red:
                 write(" r ");
                 break;
             case Color.black:
                 write(" b ");
                 break;
             }
         }
         writeln("");
     }
     writeln("");
}
void sPrintboard(Square[8][8] square) {
     for(int i=0;i<8;i++)
     {
         for(int j=0;j<8;j++)
         {
             final switch(square[i][j].Scolor) {
             case sColor.white:
                 write(" w ");
                 break;
             case sColor.black:
                 write(" b ");
                 break;
             }
         }
         writeln("");
     }
     writeln("");
}
bool isEven(int a)
{
     return a&1;
}
void main()
{
     Square[8][8] square;
     for(int i=7;7>=0;i--)
     {
         for(int j=7;j>=0;j--)
         {
             if((isEven(i)&&isEven(j))^(!isEven(i)&&!isEven(j)))
                 square[i][j] = new Square(Color.none, 
sColor.white);
             else 
if((!isEven(i)&&isEven(j))^(isEven(i)&&!isEven(j)))
                 square[i][j] = new 
Square(Color.none,sColor.black);
             else
                 assert(false);

         }
     }
     for(int i=2;i>=0;i--)
     {
         for(int j=7;i>=0;j--)
         {
             if((!isEven(i)&&isEven(j))^(isEven(i)&&!isEven(j)))
                 square[i][j].color = Color.red; //The program 
breaks here, with a range violation message
             else
             {

             }
         }
     }
     cPrintboard(square);
     sPrintboard(square);
}
```

What am I doing wrong here? Is it the 'for' loop?