Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Standard rules for ten lines (gray) and arrows apply.

There are no negative constraints of any kind.

Ten Lines: Digits along they gray line must be broken into one or more contiguous groups of cells that add to ten. Such groups cannot overlap. Digits may repeat within such sums if allowed by other rules. For example, 513173 is a valid fill for a length 6 line, because it can be broken into 5131 and 73, each of which sum to 10.

Arrows: The digit in a circle is the sum of the digits along the arrow. Digits may repeat along arrows if allowed by other rules.

Have fun, leave a comment if you enjoy the puzzle!

Play this puzzle on SudokuPad

PS: I stream solving sudoku like puzzles three days a week. You can check out the channel, as well as some videos I have made about setting puzzles, at my YouTube channel here.