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(3, 9, 1) Remaining distance distributions after General for INTERNAL point
(1, 9, 1) has 1 possible DDs: {[3, 6]}
(2, 9, 1) has 3 possible DDs: {[1, 4, 4], [2, 2, 5], [3, 0, 6]}
(3, 9, 1) has 7 possible DDs: {[1, 0, 6, 2], [1, 1, 4, 3], [1, 2, 2, 4], [1, 3, 0, 5], [2, 0, 3, 4], [2, 1, 1, 5], [3, 0, 0, 6]}