Logic Masters Deutschland e.V.

Every row, column and 3x3 box must have the digits 1-9, without any of the digits repeating in any row, column or 3x3 box.

Fog is covering the sudoku grid. Entering a correct digit will reveal what is beneath the fog in that cell and possibly other locations in the grid. No guessing is required.

No digit appears in any ruleset more than once. i.e. if a 4 appears on a renban line. No other renban line can contain a 4.

Purple lines are renban lines. A renban line contains a set of consecutive digits in any order without repeats.

Green lines are German Whisper lines. Two cells connected by a German whisper line must have a difference of at least 5.

Mint lines are modular lines. Every 3 consecutive cells along a modular line must contain a complete set of residuals modulo 3. i.e. one from (3,6,9), one from (2,5,8) and one from (1,4,7).

Orange lines are entropy lines. Every 3 consecutive cells along a modular line must contain a low digit (1,2,3), a medium digit (4,5,6) and a high digit (7,8,9).

Blue lines are region sum lines. Box borders divide the line into segments. Each segment on a line must have the same total when summing the digits.

Red Lines are parity lines. Every consecutive pair of cells along a parity line must contain one even digit and one odd digit.

Digits in a cage must sum to the number in the top-left corner (if given) and cannot repeat.

Numbers on a thermometer strictly increase as they move away from the bulb.

Box one (the 3x3 in the top left of the sudoku grid) and only box one, has a non-consecutive rule constraint. Every digits within box one cannot be consecutive with any of its orthogonally adjacent cells. i.e. if R1C3 was 6, R1C2

Digits on a grey square are even. Digits on a grey circle are odd (the bulb of a thermometer is not considered as a grey circle).

No lines or thermometers branch