Cross Currents
(Published on 28. November 2025, 16:23 by NotSoMagnifique)
My first puzzle with ten-lines - and likely not my last! This came from Scojo's weekly prompts a few weeks back.
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Rules:
- Normal sudoku rules apply.
- 10-lines - Each red 10-line can be entirely divided into non-overlapping segments that each sum to 10.
- Arrows - digits along the stem of an arrow sum to the two digit number in the bulb - the digits in the bulb read from top to bottom or left to right.
- XV sums - digits separated by X sum to 10; digits separated by V sum to 5. No negative constraint.
- Ratio Kropki - digits separated by a black Kropki dot have a ratio of 2:1. No negative constraint.
Solution code: Row 1 digits, left to right
Comments
on 3. December 2025, 00:56 by PancakePie
What a beautiful and joyful construction! Thank you!
on 30. November 2025, 22:40 by Ganbatte
This was exactly what all 1-star puzzles should be! Always, the next clue appeared. I agree that the 10-lines were a good feature. Thank you!
on 28. November 2025, 21:55 by macintux
I was impressed by how effective the 10-lines are. Very nice puzzle.
