Logic Masters Deutschland e.V.

Normal sudoku rules apply. Put the Digits 1 - 9 in every row, column and 3x3 box.

White Kropki: Digits separated by a white dot are consecutive. Not all possible dots are shown.

Black Kropki: Digits separated by a black dot indicate one digit is double the other. Not all possible dots are shown.

Sensors: Red circles act as sensors: each number in a red circle equals the number of EVEN digits a king’s move away within the same 3×3 box, including itself.

For example, if a circled cell sits in a position where its king’s move within its box covers 6 cells containing the digits 1, 2, 3, 4, 6, and 9, then the circle would be 3, since 2, 4, and 6 are even.

Those are the rules! Good luck!

Play this puzzle on SudokuPad

If you enjoyed this, click the picture below to take you to my ODD version of this puzzle (It's a little bit harder)!