Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

Each 3x3 box has one of the following rules that applies to all lines in that box. Which rule applies to which box is to be determined by the solver, at least one of each must exist in the final puzzle.

Where a line exits a box, the rule extends to the first cell the line meets outside the box.

The allowed rules are:

Entropic Line every set of 3 adjacent digits along the line must contain one each of a low medium and high digit. (123,456,789)

Modular Line every set of 3 adjacent digits along the line must contain one each of the modular sets. (147,258,369)

Region Sum: Cells on the line in each box sum to the same value

9 Cell Thermometer digits must strictly increase along the line from 1 to 9

Dutch Whisper: adjacent cells on the line must differ by at least 4

9 Cell Renban: an exact set of the digits 1-9

Between Lines: digits on the line must have values between the digits at the ends of the line

Sudokupad link