The hidden merge of (2) and (3)

Besides of the formal merges I introduced, there is a situation called hidden merge. The most important hidden merge relation is between (2) and (3). Usually you will not use it in the life code cases. Because the effect of hidden merge is minor, and life code is general, you cannot analyze all the details it contains. But sometimes, you may need to know the relation to interpret divination signs.

(2) and (3) don't have a formal merge relation. But (2) contains Earth, Water and Metal, or 6, 10 and 8 if you use front line codes to represent the elements. In the same way, (3) can be broken down to 1, 5 and 3. Lot of people thinks hidden merge is just a rule comes out from nothing. There is a reason: Because 6 merges 1, 10 merges 5 and 8 merges 3. (2) and (3) have a hidden merge because their components merge each other.