Logic Masters Deutschland e.V.

X Sum(Now with 100% less X sums!)

-Standard sudoku rules apply.

-Digits along the indicated diagonals cannot repeat.

-Digits cannot repeat in the same relative position within different boxes. (Eg r1c1 and r4c7 cannot contain the same digit as they both represent the top left cell of their boxes.)

-Digits along an arrow must sum to the digit in the circle.

-Along thermometers, digits must increase from the bulb end.

-Digits on either side of a white kropki dot must be consecutive, and digits on either side of a black kropki dot must be in a ratio of 1:2. Not all kropki dots are given.

You can solve the sudoku here:

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