Logic Masters Deutschland e.V.

Champagne ! by Patrick Junke

Rules :

Each row, column, and 3x3 region contains each of the digits from 1 to 9.

A white dot between two digits indicates that they are consecutive. All white dots are given.

A black dot between two digits indicates that one is double the other. (Not all black dots are given.)

A golden dot between two digits indicates that their sum is divisible by 4. All golden dots are provided.

The sum of two adjacent digits separated by a thick line is even. (The sum of two adjacent digits not separated by a thick line may still be even.)

App link :

Here is a link to the grid on SudokuPad.