Logic Masters Deutschland e.V.

Normal Sudoku rules apply:Each row, column, and 3x3 box must contain the numbers 1-9 once.

XV rules:Cells joined by an X or V must sum to 10 (X) or 5 (V).

Kropki rules:If two adjacent cells are separated by a white dot, the difference between their values must be exactly 1.If two adjacent cells are separated by a black dot, one value must be exactly double the other.

Arrows:Numbers along an arrow sum to the number shown in the circled cells.

Click the image to solve it on Sudokupad.