Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

The grid is mostly covered in fog. Placing correct digits will lift the fog around the placed digit.

Digits along a blue line must sum to the same number within each 3x3 box the line passes through. If a line passes through the same box more than once, each instance is summed separately.

There are exactly two blue lines. Each line must enter every 3x3 box at least once without branching. Lines may cross diagonally with each other a maximum of three times but never overlap (occupy the same cell). There are exactly 41 cells occupied by lines.

Cells separated by a white dot must contain consecutive digits.