Logic Masters Deutschland e.V.

The first version of this puzzle was made for a line-themed speed setting competition on the CTC Discord, which seemed like an ideal time to revisit the ruleset from Amphiboly. If you enjoy this puzzle, I expect you'll like that one as well.

Normal sudoku rules apply.

Each line obeys exactly two of the following rules.

Entropic Lines: Along an entropic line, any three consecutive cells must contain a low digit {1,2,3}, a medium digit {4,5,6}, and a high digit {7,8,9}.

German Whispers: Along a German Whispers line, consecutive digits must differ by at least 5.

Region Sum Lines: Along a region sum line, box borders divide the line into segment with the same sum. Different region sum lines may have different sums.

Renban: A renban line must contain a non-repeating group of consecutive digits, which may appear in any order.

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