Logic Masters Deutschland e.V.

Mathematical Symbols:
Therefore - ∴
Because - ∵
For All - ∀

Normal Sudoku Rules apply.
For accessibility, some lines have been marked with an abbreviation to distinguish them as an alternative to the line's colour.
Cells connected by a pink Renban [RN] line form a set of consecutive digits, in any order, without repeats.
Adjacent digits along an green German Whisper [GW] line must differ by at least 5.
Adjacent digits along an orange Dutch Whisper [DW] line must differ by at least 4.
Box borders divide a blue Region Sum [RS] line into segments with the same sum.
Adjacent digits along a double red Parity line, one digit is odd and the other digit is even.
Digits in cells joined by an X sum to 10. Digits in cells joined by an V sum to 5.
Digits in cells joined by a black dot are in a 2:1 ratio.
Not all X, Vs or dots are necessarily given.

Solve with SudokuPad

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