Logic Masters Deutschland e.V.

Sum Line: Box borders split blue lines into sections, and the digits on those sections must sum to the same value. If a line has multiple sections within a box, these sections are summed separately.

8-Blocks: Pairs of digits connected by a red block sum to 8.

We categorized this puzzle as Heartburn. For more information about our difficulty categories, please visit our website, Missing Deck Puzzles, where we publish a new puzzle each day.

Try the puzzle on the SudokuPad app by Sven Neumann.