Logic Masters Deutschland e.V.

If you will have hard time solving it, turn on the conflict checker, should make it much easier :-)
I hope you will enjoy and I would be really grateful for all the comments and ratings.

Normal sudoku rules apply.

Diagonal: Digits along the marked diagonals must not repeat.

Antiknight: Identical digits cannot appear in cells a chess knight’s move apart.

Disjoint groups: Cells with the same position within the boxes must contain all the digits 1 to 9 (i.e., identical digits cannot appear within the same position in two different boxes, given digits help to understand this rule).

Kropki dots: Digits in cells joined by a black dot are in a 1:2 ratio (i.e., one digit will be double the other). Not all dots are given.

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