Part 1 is HERE and Part 2 is HERE.

You can use the 10 Most Due Pairs to further reduce the list.

Assume the final list you come up with has 10 numbers: 012 013 019 023 035 037 137 189 347 357 –and assume that these are the 10 most due pairs:

Keep in mind that the most due pair is on the top left: 57. And the 2nd most due pair is 67. And the 3rd most due pair is 47…and so forth.

Focus on the top 5 pairs: 57, 67, 47, 12, 03.

Start with the most due pair: 57.

Do any of the numbers have pair 57?–YES: 357.

Do any of the numbers have pair 67?–NO

Do any of the numbers have pair 47?–YES: 347

Do any of the numbers have pair 12?–YES: 012

We already have 3 numbers….so I will NOT use all the numbers with pair 03 because it will add too many numbers (013, 023, 035, 037). HOWEVER, I will add 037 because it has TWO due pairs: 03 and 37.

Therefore, we can reduce the 10 numbers down to 4 numbers:

REDUCED: 357, 347, 012, 037