Logic Masters Deutschland e.V.

Rules for solving:

- Normal sudoku rules apply - Place digits 1-9 once each in every row, column and 3x3 box

- Digits separated by a white dot are consecutive, digits separated by a black dot are in a 1:2 ratio, ie. one digit is double the other. Not all dots are given

- Digits in cages don't repeat and sum to the given total in the upper left corner

- Digits on an arrow sum to the digit in that arrow's circle

- Sandwich sums rule applies - Values outside the greed show the sum of the digits between 1 and 9 in the corresponding row or column

- Disjoint set rule applies - Cells that occupy the same relative position in their corresponding box cannot contain the same digit. For example r1c1 cannot be the same as r4c4 and so on

Puzzle:

Sudokupad