Logic Masters Deutschland e.V.

This is a puzzle that I created for Piatato's birthday, and he was kind enough to suggest that I share with all of you as well.

Ratings, comments, and feedback are much appreciated! Please feel free to reach out to me on Discord if you have any comments or questions. Please also feel free to try my other puzzles here.

Rules:

• Japanese sums: Shade some cells in the grid and fill all unshaded cells with the digits 1 to 9 such that no digit repeats in any row or column. Clues outside the grid indicate the sums of the continuous segments of unshaded cells in that row or column, in the correct order. There must be at least one shaded cell separating two segments. In each row and column, either all sums are given or no sums are given. A '?' represents any digit 0 to 9, but no clue may have a leading 0.
• Pentominoes (chain): Shaded cells in the grid form pentominoes (orthogonally connected groups of 5 shaded cells). Each of the 12 unique pentomino shapes appears once on the grid, counting rotations and reflections as the same. Pentominoes may not share any edges, but they must form a single diagonally connected network.

Penpa+: https://tinyurl.com/273lbkaf