Logic Masters Deutschland e.V.

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

German whispers: Adjacent digits on a green line must have a difference of at least 5. All German whisper lines have been given that would be vertical or horizontal. (i.e. There is a negative constraint, but this does not apply to diagonally adjacent digits.)

XV Pairs: Digits separated by an X sum to 10. Digits separated by a V sum to 5.

Solve on CTC