Logic Masters Deutschland e.V.

Rules:

• Place the digits 1-9 once each in every row, column and box.
• Clues outside the grid show the sum of the digits between 1 and 9 in that row or column.
• Digits along an arrow sum to the digit in the connecting circle.
• Digits in cells separated by a white dot are consecutive.
• Digits in cells separated by a black dot are in 1:2 ratio.

Solve the sudoku here:
SudokuPad