Logic Masters Deutschland e.V.

Rules:

Normal Sudoku rules apply. Place the digits 1-9 once each in every row, column, and 3x3 region of the puzzle.

Lines:
-Yellow lines are polarity lines. Digits along the line alternate between the sets of (1,2,3,4) and (6,7,8,9).
-Orange lines are Dutch Whisper. Adjacent digits on the line have a difference of at least four.
-Blue lines are region sum lines. 3x3 region borders divide the line into segments of the same sums.
-Green lines are German Whisper. Adjacent digits on the line have a difference of at least five.
-Red lines are parity lines. Digits along the line alternate between even and odd.
**Each line begins and ends with the same digit. This digit can be different for different lines.

Other clues:
-Black dots separate digits in 2:1 ratio.
-White dots separate consecutive digits.
-Gray squares contain even digits.
-Gray circles contain odd digits.
-A “V” separates two digits that sum to five.
**Each clue type is comprised of the same digit/digits in all instances of that clue type. Different clue types can use different digits.

To Play:

SudokuPad