Logic Masters Deutschland e.V.

Place numbers from the given set into some fields, so that no two numbers may touch on side (but can touch on corners). Numbers can repeat in rows/columns. In all other fields draw a simple loop, i.e. a single closed loop (without intersections or crossings) through all white cells. Loop paths must be orthogonal.
Given numbers in rows/columns of diagram are sums of all numbers from that row/column.

Example:

Puzzle:

Online solving: Penpa