See the picture below...
The problem is that the lower right point is too big, I have it covered with a new white piece so it should look right in the picture except for the pins :(
I can not square this block up unless I replace one of the white pieces. Once I take out the old square, I am afraid I will mess this up trying to put the new square in.
Any tips on how I can make his easier on myself. This block took me all day to make and I really don't want to mess it up.