Logic Masters Deutschland e.V.

This puzzle was a collaboration with Flinty for Scojo's weekly setting prompt. This week, we're showing some love to ThePedallingPianist and his expanding family!

To solve online, click here or on the image below.

Rules

Normal sudoku rules: Place the digits 1 to 9 in each Row, Column, and 3X3 box.

Every clue number outside the grid appears exactly twice. One appearance is a Full Rank clue and the other is an X-sums clue. It is up to the solver to determine the nature of each clue.

The digits on columns and rows, read in both directions, make a total of 36 numbers of nine digits each.

Full Rank clues outside the grid have a value equal to the rank for the indicated row/column among those 36 numbers, where the lowest is 1 and the highest is 36.

X-Sums clues outside the grid give the sum of the first X digits in their respective row or column, where X is the digit nearest the clue.