Counting Matching values in two separate ranges without counting duplicates

This is probably pretty simple but I cannot get various formulas (Countif, Match, Frequency, Etc) to work properly.

I am trying to arrive at a total number of matches of numbers in cell range B1:G1 with any numbers entered into the cell range of K1:P11 and have the total of matches display in cell H1.
However I do not want to count duplicate numbers from the K1:P11 cells. (if the number 5 in posted in K1:P11 multiple times I only need it reported once in H1)

B1:G1 is the constant and the numbers will not change - K1:P11 cells will be populated by adding numbers until the all the numbers in B1:G1 is completed and match.

Range
B1 C1 D1 E1 F1 G1
2 7 19 45 22 13

H1
Total of matching numbers in cell range K1:P11


Hope someone can help.

Thx

Excellent - Works perfectly - Thank you so much!