>Please re-read my thread. This does not answer the problem. I am attempting to determine the least number of triplets (a-j) that will cover the 10 matched pairs listed.
One basic problem is the large amount of alternatives you may have to test.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)