Chess

private void newtile_click(object sender, EventArgs e)
        {
            Tile t = (Tile)sender;
            t.Image = Chess.Properties.Resources.green;
            if (greentile != null)
            {
                greentile.Image = null;
                Piece p1 = getpiece(greentile);
                if (p1 != null)
                {
                    if (p1.color == Color.White)
                    {
                        if (p1.rank == Piece.type.pawn)
                        {
                            drawpiece(t, "♙");
                        }
                        else if (p1.rank == Piece.type.rook)
                        {
                            drawpiece(t, "♖");
                        }
                        else if (p1.rank == Piece.type.knight)
                        {
                            drawpiece(t, "♘");
                        }
                        else if (p1.rank == Piece.type.bishop)
                        {
                            drawpiece(t, "♗");
                        }
                        else if (p1.rank == Piece.type.queen)
                        {
                            drawpiece(t, "♕");
                        }
                        else if (p1.rank == Piece.type.king)
                        {
                            drawpiece(t, "♔");
                        }
                    }
                    else if (p1.color == Color.Black)
                    {
                        if (p1.rank == Piece.type.pawn)
                        {
                            drawpiece(t, "♟");
                        }
                        else if (p1.rank == Piece.type.rook)
                        {
                            drawpiece(t, "♜");
                        }
                        else if (p1.rank == Piece.type.knight)
                        {
                            drawpiece(t, "♞");
                        }
                        else if (p1.rank == Piece.type.bishop)
                        {
                            drawpiece(t, "♝");
                        }
                        else if (p1.rank == Piece.type.queen)
                        {
                            drawpiece(t, "♛");
                        }
                        else if (p1.rank == Piece.type.king)
                        {
                            drawpiece(t, "♚");
                        }
                    }
                }
            }
            Piece p = getpiece(t);
            greentile = t;
            p = getpiece(t);
            if (p != null)
            {
                if (p.color == Color.White)
                {
                    if (p.rank == Piece.type.pawn)
                    {
                        drawpiece(t, "♙");
                    }
                    else if (p.rank == Piece.type.rook)
                    {
                        drawpiece(t, "♖");
                    }
                    else if (p.rank == Piece.type.knight)
                    {
                        drawpiece(t, "♘");
                    }
                    else if (p.rank == Piece.type.bishop)
                    {
                        drawpiece(t, "♗");
                    }
                    else if (p.rank == Piece.type.queen)
                    {
                        drawpiece(t, "♕");
                    }
                    else if (p.rank == Piece.type.king)
                    {
                        drawpiece(t, "♔");
                    }
                }
                else if (p.color == Color.Black)
                {
                    if (p.rank == Piece.type.pawn)
                    {
                        drawpiece(t, "♟");
                    }
                    else if (p.rank == Piece.type.rook)
                    {
                        drawpiece(t, "♜");
                    }
                    else if (p.rank == Piece.type.knight)
                    {
                        drawpiece(t, "♞");
                    }
                    else if (p.rank == Piece.type.bishop)
                    {
                        drawpiece(t, "♝");
                    }
                    else if (p.rank == Piece.type.queen)
                    {
                        drawpiece(t, "♛");
                    }
                    else if (p.rank == Piece.type.king)
                    {
                        drawpiece(t, "♚");
                    }
                }
            }
        }