sorry frank ok ok let's go by parts.

*1st step = we have a 5 row and 5 column array

01 02 03 04 05

06 07 08 09 10

11 12 13 14 15

16 17 18 19 20

21 22 23 24 25

border are the two rows and two columns of the ends

01 02 03 04 05

06 10

11 15

16 20

21 22 23 24 25

center

07 08 09

12 13 14

17 18 19

you have to see on each draw line which numbers then on the edge and which ones are in the center

*add up your quantities

*example raffles x gave 9 numbers on the border and 6 on the total center 15 the sum always has to be 15 since 15 is the number of numbers drawn, my lottery (one of them) is 25/15,

frank, the distance is when the number is drawn a border number is not drawn the number of the border 22 and the center was 07, there is a distance of 3 because the 22 is sum together, is just an example

another example of edge-to-center distance

in the draw was not drawn 23 (edge number)

in the center was 18, so we have only 1

goal = hit the edge numbers and have a perspective of the center numbers, can you put some edge filter? please