[redhead]

Some pseudocode:

Read valueX
Read valueY
Read squareX
Read squareY
while(valueY--)
   While(valueX--)
     print(squares of size squareX)
   print(squares of size squareY)

into code that might look somethig like this: (not tested/compiled/anything)

while(valueY--)
   {
     /* print vertical line of chessboard */
     while (squareX--)
     {
        /* print horizontal line */
       while(valueX--)
          print('-');
       print('|');
      }
     print('\n');
     squareX = orig_squareX;
     /* print spaces and vertical lines */
     while(squareX--)
     {
         while(valueX--)
           print('-');
         print('|');
      }
     print('\n');
    }

But remember this, I'm drunk right now, so this might be a pointer in the wrong direction....