The filter accepts tickets that have the desired count of first or last digits that are adjacent to the digits of the latest draw. A digit is adjacent to some other digit if it is one higher or one lower than the other digit.
Note: The filter compares the digits of filtered tickets with the digits of the latest draw within the past draws selected in filter window. So selecting for example Winning Numbers: All draws and Winning Numbers: 10 latest draws in Expert Lotto 6/49 Demo lottery has the same effect, the adjacent digits will be compared to the very latest draw which is 2010/28 Sun 2nd.
The latest draw in Expert Lotto 6/49 Demo Lottery is:
2010/28, Sun 2nd, 23-29-36-42-44-47-[07]
Filtering with settings Winning Numbers: All draws, Adjacent Last digits min: 2 max: 4 accepts for example ticket 1-2-3-4-9-10. The last digit of number 1 is adjacent to number 42 from the latest draw. The last digit of number 2 is adjacent to number 23 of the latest draw. The last digit of number 3 is adjacent to numbers 42 and 44 of the latest draw. That is 3 adjacent last digits in total.
Filter rejects for example ticket 1-2-3-4-5-6 because all its last digits are adjacent to the last digits of the latest draw and the filter condition allows at most 4 such digits.
Filtering with settings Winning Numbers: All draws, Adjacent Last digits min: 2 max: 4, Match ticket position accepts for example ticket 1-2-5-9-10-16. The last digit of number 5 is adjacent to number 36 at the same position in the latest draw. And the last digit of number 16 is adjacent to the last digit of number 47 from the previous draw. That is 2 adjacent last digits in total.
Filter rejects for example ticket 1-2-3-4-9-10 because no last digit is adjacent to the last digits of the latest draw when comparing by ticket position.
See also Adjacent Digits statistics and Adjacent Numbers filter.