Logic Masters Deutschland e.V.

This Is Not A Song, It’s A Sandwich

This is a variant sudoku puzzle.

Rules:

1. Normal sudoku rules apply.

2. Digits outside the grid represent the sum of the digits that appear between 1 and 9 in that row/column.

3. Digits on a blue line must have an equal sum within each region it passes through.

4. Digits in the shaded cells in columns 1, 5, and 9 indicate the column in which 1, 5, or 9 (respectively) appears in that row.