write an android app that displays a chessboard on a grid with black and white

pieces. You can represent each piece by a letter or two, for example, P for pawn,

Q for queen, R for rook, K for knight, B for bishop, and KG for king. When the

user clicks on a knight, color in green the cells where the knight can move. Include

a Model. Do not use XML, that is, the view should be constructed by means of

objects of layout classes.