Logic Masters Deutschland e.V.

Rules:

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

Parity: The cell with a large gray circle contains an odd digit.

Lines: Regions divide blue lines into segments of the same sum. Different blue lines can have different sums. Adjacent cells along green lines contain digits with differences of at least five. Adjacent cells along orange lines contain digits with differences of at least four.

Kropki: Cells separated by a white dot contain consecutive digits. Cells separated by a black dot contain digits in a 2:1 ratio. Not all dots are necessarily given.

An X separates cells that sum to ten.

Sum Squares: Dominos separated by black squares have the same sums. Dominos separated by white squares have the same sums. Not all squares are necessarily given.

To Play:
SudokuPad