Ok im wanting to make a Checkers game

im useing PictureBoxes their border is set to none when the user selects a pice to move i want the border to go to Fixed Single. and move to the next picturebox that is click. thier are 64 squares and only 32 of the squars can hold a pirce how can i get what pices was clicked and change it's border to Fixed single and then get the next piece that was clickes and move the first clicked- piece to the Second clicked piece