Logic Masters Deutschland e.V.

What do you do when a Sudoku buddy has a birthday? You make him a pair of puzzles, of course! Happy belated birthday to the one and only sujoyku - both puzzles will be out shortly.

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Rules:

- Normal Sudoku rules apply.

- Region Sum Lines - box borders divide blue Region Sum Lines into segments that have equal sums. Separate RSLS are not required to have the same value.

- German Whispers - neighboring digits on a green German Whisper line must differ in value by at least 5.

- Renban - the digits on a purple Renban line must be a consecutive set in some order.

- Ratio Kropki - digits separated by a black Kropki dot have a 2:1 ratio. No negative constraint.

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Sudokupad

Puzzle: