Logic Masters Deutschland e.V.

RULE SET:

Normal Sudoku rules apply. Place the digits 1 through 9 in each row, column, and box.

KROPKI: Cells separated by a black dot are a 1:2 ratio. There is a negative constraint for black dots in this puzzle.
-----> ALL BLACK DOTS ARE GIVEN <-----

GERMAN WHISPER (GREEN): Adjacent digits along the green German Whispers line must differ by at least 5. Digits may repeat if other rules allow.

X-pairs. Cells separated by a "X" must sum to 10. Not all X-pairs are given.

Click the Link to Play: Sudokupad

Link to: Constraint Steps

Link to: Paired Constraint

Link to: Rainbow Constraint