Logic Masters Deutschland e.V.

Normal Sudoku rules apply. Each row, column, and 3x3 box contains each number from 1 to 9 exactly once.

Kropki Sudoku rules apply. The blacks dot represent a 1:2 ratio and the white dots represent a difference of 1 between two neighbouring cells. NOT all possible black and white dots are indicated; a.k.a. no negative constraint.

The grey lines are palindromes: they are sequences of digits which read the same backward as forward (for example: 1374731).

Both palindromes contains the same set of four digits. (Of course in different order. For example: 1-2-3-4-4-3-2-1 and 2-4-1-3-3-1-4-2 is a valid construction.)

The puzzle is also available online.