Thanks all for helping. Here are the details and I'll ask the question in a
minute.

I have a sheet with sets of 3 columns (ABC, DEF, GHI, JKL and so on) all
numeric and no blank cells.

To keep it simple let us say that columns PQR is the extent of the sets.

Column P is the basis for a horizontal count.
Columns Q & R are added together and their total will be the Vertical count.

The horizontal count starts from P and counts from right to left as follows
ABC=4 DEF=3 GHI=2 JKL=1 MNO=0 PQR.

IF P25=3, Q25=3, R25=4
The count would be horizontal from P25 to D25:F25 (set #3).
The Vertical count would be (Q25=3 + R25=4)=7. So D25:F25 less 7 = vertical
count back to D18:F18.

With that said, is it possible to have a formula find D18:F18 based on the
earlier parameters, then match D17:F19 with P26:R26 (not D25:F25).

I hope this is clear enough
Thank you,
Luke