Logic Masters Deutschland e.V.

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

Divisors: Digits in the centre of a grey disc are divisors. Each of the four digits on the edge of a grey disc are divisible by the divisor they are adjacent to. (For example, any digits may be adjacent to a divisor of 1, but only even digits may be adjacent to a divisor of 2, and so on.)

Kropki: Where two cells are connected by a black dot, one is double the other. Where two cells are connected by a white dot, they are consecutive.

Sudokupad link: https://sudokupad.app/vwh5343sn8

Other puzzles in this series:

20.06.2026: Emeralds and Beads

21.06.2026: Sapphires and Beads

22.06.2026: Amethysts and Beads

23.06.2026: Rubies and Beads

24.06.2026: Ambers and Beads

02.07.2026: Pearls and Beads

11.07.2026: Citrines and Beads

19.07.2026: Jewels and Beads (Series Finale)