Logic Masters Deutschland e.V.

Here is a fun little exercise about modularity. Enjoy!

Rules:

1. Normal sudoku rules apply.

2. Digits along the blue line have an equal sum N within each 3x3 box it passes through.

3. Blue lines are also modular lines. Any set of three sequential cells along a modular line contains one digit from (1,4,7), (2,5,8), and (3,6,9).

4. Cells separated by a white dot must contain consecutive digits. Cells separated by a black dot have a 1:2 ratio. Not all dots are given.

Do have a go!

Link(solution check): CTC