Logic Masters Deutschland e.V.

A hybrid of Sudoku and Roller Coaster, inspired by an unpublished puzzle by Sandra and Nala with the name "Wilde Maus". I usually would aim for a more minimally clued grid, but this puzzle is an exception. Enjoy!

Rules:

Normal Sudoku rules apply. Place the digits 1-9 exactly once in each row, column and thick-outlined box.

Draw a closed loop in the grid, that runs through the middle points of orthogonally connected cells and doesn't visit a cell more than once.

Clues to the left of the grid indicate sums of digits on a horizontal loop segment in that row. Clues at the top of the grid indicate sums of digits on a vertical loop segment in that column. If a row or column has at least one given clue, all clues are given, and they are in the correct order. ?s stand for any digit 0-9, but leading zeros are not allowed.

Each loop segment has one of the following colors: purple, green or blue. The loop changes color exactly at each turn. The properties of the loop segments are as follows:

Purple (Renban) - Digits on a purple loop segment form a set of consecutive digits in any order.

Green (German Whisper) - Adjacent digits on a green loop segment differ by at least 5.

Blue (Region Sum) - Digits on a blue loop segment sum to the same total in each region the segment passes through. Blue segments must pass through at least two regions.

Mauskürvchen (example puzzle with digits 1-6 and adjusted german whisper rules):

CtC-App

Mauskurven (main puzzle):

CtC-App