Well, you need something like:
Dim board(7,7) as byte
remstart
0=empty
***black
1=pawn
2=rook
3=knight
4=bishop
5=queen
6=king
***white
7=pawn
8=rook
9=knight
10=bishop
11=queen
12=king
remend
rem Read board
for l1=0 to 7
for l2=0 to 7
read board(l2,l1)
next l2
next l1
rem Main loop
do
loop
rem Board data
data 2,3,4,5,6,4,3,2
data 1,1,1,1,1,1,1,1
data 0,0,0,0,0,0,0,0
data 0,0,0,0,0,0,0,0
data 0,0,0,0,0,0,0,0
data 0,0,0,0,0,0,0,0
data 7,7,7,7,7,7,7,7
data 8,9,10,11,12,10,9,8
This will set up the board and the pieces. You'll need to assign graphics to those numbers and create a board and figure out how to paste the images. You'll also have to figure out how to move the pieces. If you don't know how to do any of that, then this project is too sophisticated for you and you need to start out with something more basic.
Oh, I wasn't going to program in the behaviors of the pieces for you. I figure if you're writing a chess game, you know how the pieces move. You can write your own IF or CASE statements.