Sum of Digits Filter

000 = 00 Sum

999 = 27 Sum

There are 28 pick 3 Sums

Most of the pick 3 numbers are on the Middle Sums such as the 13 Sum and 14 Sum.

All of the 28 Sums = the 1000 Straight and the 220 Box Numbers.

Every-Time that you Filter Out a Sum you Filter Out so many pick 3 numbers.

Or you can try to predict for particular Sums.

Example:

175 = 13 Sum

001 = 01 Sum

444 = 12 Sum

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For Pairs:

00 = 00 Sum

99 = 18 Sum

There are 19 Sums for Pairs.

44 = 08 Sum

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Some software have this filter in or on them.