Logic Masters Deutschland e.V.

Puzzle #1: Anything works

Puzzle #2: Divinity Through the Fog by meggen033

Puzzle #3: Omnipotent Butterfly

For the fourth puzzle of the series, I have combined the Omnipotent Line variant with Sandwich clues. I think these two constraints go along quite well and the puzzle should be approachable, but judge for yourselves. :)

As always, your comments are much appreciated. I wish you happy solving!

- Normal sudoku rules apply, i.e. each row, column and 3x3 region has to contain the digits from 1 to 9 once each.

- Sandwich: A Sandwich clue outside the grid indicates the sum of all digits between 1 and 9 in the respective row or column.

Example: A row filled with 135792468 would have a Sandwich clue of 15(=3+5+7).

- Omnipotent Line: The orange line is a so-called Omnipotent Line, i.e. each pair of adjacent digits on the line must fulfill either an X, V, white or black Kropki dot clue. In other words, any pair of adjacent digits on the line must sum to 5 or 10, be consecutive or in a 1:2 ratio. (At least one of these constraints must be met, it is allowed that two are fulfilled simultaneously.)

Example: The digit 3 may be adjacent on the line to either a 2 (V or white Kropki dot), a 4 (white Kropki dot), a 6 (black Kropki dot) or a 7 (X).

Here you can solve the puzzle online:

Solve on f-puzzles

Solve on CtC