Logic Masters Deutschland e.V.

Rules:

Normal sudoku rules apply.

Renban: Numbers on a purple line form a set of non-repeating, consecutive numbers (in any order).

X-sums: Numbers in the topmost row and leftmost column outside the main grid indicate the sum of the first x digits in the main grid from that direction, where x is the first of those digits.

Sandwiches: The other outside row and column indicate the sum of the digits between the 1 and the 9 in that column/row of the main grid.

Solve online:

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