Logic Masters Deutschland e.V.

This puzzle is one that I created as a gift to filuta for the 2022 Secret Satan event organized by Gliperal. Thank you filuta for encouraging me to post this here!

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:

• Deconstruction: Contained within the grid are nine non-overlapping 3x3 square regions which must be located. Each region contains the digits 1 to 9 once each, and digits cannot repeat in any row or column. Cells outside regions do not contain digits.
• Anti-knight: Two cells separated by a knight's move (in chess) cannot contain the same digit.
• Killer: In cages, digits sum to the small number in the top left corner of the cage. Digits cannot repeat within a cage; empty cells count as 13.
• Dots: Dotted cells belong each to a different region and contain the digits 1 to 9 once each. Each dotted cell has a target cell of the same value, which must be orthogonally adjacent to and in the same region as the dotted cell containing the digit above it (1 is "above" 9 for this purpose).
• Connect the dots: Each dotted cell forms a line segment taking the most direct straight path to its target cell, and every target cell forms a line segment with the dotted cell it is adjacent to. The loop formed by these line segments may not intersect itself, and the lengths of the line segments connecting two of the same digit must strictly increase as the corresponding digit increases.

Example puzzle: The following is an example puzzle, which you may try in Penpa+ here to familiarize yourself with the rules (using the digits 1 to 4 with four 2x2 regions)

Puzzle link:

Penpa+: https://tinyurl.com/2mquyzky

Please note: Penpa+ answer check requires correct digits, region borders, and loop lines.