implementation of the BOard size 8x8

src/backend/Board.java

@@ -3,9 +3,10 @@ package backend;
 import java.util.ArrayList;
 
 public class Board {
+	private Piece[][] board;
 
 	public Board(int colNum, int lineNum) {
-		//TODO
+		this.board = new Piece[8][8]; // 8x8 chess board
 	}
 
 	public int getWidth() {