Logic Masters Deutschland e.V.

Thanks to Scojo for the inspiration for this puzzle! Happy solving!

Solve online: CTC, f-puzzles

Rules:

Normal sudoku rules apply. Place the digits 1 to 9 in each Row, Column, and 3X3 box.

Disjoint groups: Digits do not repeat in the same relative position with any box (e.g. R2C2 and R5C5 must be different).

Sandwich sums: Sandwich clues outside the grid indicate the sum of the digits between 1 and 9 in that row/column.

Difference dots: Digits in cells separated by a green dot must have a difference of 5.

Even: Cells with grey squares must contain an even digit.