To show you how to calculate the Distances filter for a Pick 2 number here a step by step example.
Step 1: Divide the number into separate digits: 74 => 7 4 Step 2: Calculate the distance between each digit and the next (the last digit with the first): 7 to 4 = 3 4 to 7 = 3 Step 3: Combine the filters to a string: 3 3 = 33