Another Detour
(Published on 21. January 2026, 16:00 by Blobz)
Normal sudoku rules apply.
Draw a loop (using orthogonal line segments through the centers of cells) such that it visits every cell marked with a diamond. The loop may cross itself, but can only change direction (turn through 90 degrees) at a diamond. Thus, all "corners" of the loop are on diamonds. However, not all diamonds mark loop corners -- "non-corner" diamonds lay on a line segment _between_ two corners.
The loop has a specific direction, such that each digit in a "corner" diamond equals the number of cells needed to move along the line segment to reach the next corner. Each digit in a "non-corner" diamond must equal the sum of the two corner cells of its line segment.
Have fun, leave a comment if you enjoy the puzzle!
Solution code: Row 8
Comments
on 16. April 2026, 16:23 by kopo1
The path was easy but the rest of the sudoku was quite hard or due my lack of basic sudoku skills. Had to color everything and luckily et worked right away.
on 22. January 2026, 17:25 by Franjo
As building the loop and filling the diamonds was VERY easy this one quickly turned into a classic Sudoku, but, well, not a simple one. Thank you for sharing.
on 22. January 2026, 03:04 by ScatterBrain
This was a great idea. I've never heard of these rules before. Did you make them up? Great puzzle!
