Logic Masters Deutschland e.V.

By Stephyonike

Solve on SudokuPad

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

Killer Cages: Digits in a cage do not repeat and sum to the value in the top left corner of that cage.

Kropki Dots: Digits separated by a white kropki dot are consecutive. Digits separated by a black kropki dot are in a 2:1 ratio (i.e. one digit is double the other).

Even/Odd: Digits in a gray circle are odd. Digits in a gray square are even.

Sum Difference Lines: Circles on a red sum difference line split that line into segments where the circled digit is the difference between the sums of the two segments' digits. To avoid confusion, if a segment is of length one, its sum is just the value of the digit on that segment.

Example:

1-2-(7)-6-4 is a valid line because 1+2=3, 6+4=10, and the difference between 3 and 10 is 7.