Logic Masters Deutschland e.V.

Rules: Place digits 1-8 into all empty cells such that no digit is repeated within a row or column. Additionally, draw a single closed loop that travels horizontally and vertically through all cells of the grid. Clues outside the grid indicate the sums of the digits on each loop segment in the respective row, in the correct order. Every question mark represents a number (1-36).

A 4x4 example:


The puzzle is also available on Penpa.

Enjoy solving! :)