Finned Swordfish
Find eliminations valid whether the extra candidates outside a finned Swordfish are true or false.
All candidates have been entered in the empty cells.
In the 3 rows in A, candidate digit 2 can appear only in the overlaps with the 3 columns in B or at candidate digit 2 marked C. If candidate digit 2 marked C is true, candidate digit 2 marked × that shares its row, column, or block is false. If candidate digit 2 marked C is false, candidate digit 2 in the 3 rows in A is confined to the overlaps with the 3 columns in B. In that case, one candidate digit 2 is true in each row in A. Because two 2s cannot share the same column in B, one candidate digit 2 is also true in each column in B. In this case too, candidate digit 2 marked × in the 3 columns in B is false. In either case, candidate digit 2 marked × can be removed.