Hide and Seek
(Published on 2. December 2025, 18:55 by Jooshy)
Rules:
- Normal sudoku rules apply.
-
Every cell is on one of the following lines:
- German Whisper (green) line: Adjacent values along the line differ by at least 5.
- Renban (purple) line: Values along the line form a consecutive set of integers; values cannot repeat on the line.
- Region Sum (light blue) line: Region/Box borders cut the line into segments whose values all sum to the same total.
- Palindrome (grey) line: Cells the same distance from the line's centre contain the same digit.
- Blank (invisible) line: Has no constraint, but is invisible on the grid.
- All lines are 9 cells long.
- There can only be one line of each type in a box.
- No line branches, overlaps, or crosses over another line. Lines also cannot cross over themselves.
- White Kropki: A white dot between cells indicates cells with consecutive values. Not all dots are shown.
- Dynamic fog: The grid is partially covered in fog. Entering correct digits may clear fog somewhere in the grid. No guessing is required.
Solution code: Row 5 (Left to Right)
Solved by jalebc, kublai, KyubiBoy, alraun_x, Sarhik, idanz, SKORP17, bansalsaab, lmdemasi, illegel, Nadelüz, kid, jkuo7, macronate, Adrian71, ludvigr04, sarabtx, wenchang, strangelyinsane, lune, Saltensity, ... alexstrf, kuilixing, hurrdurr, fredchen, tangobunni, Soya, Vodakhan , toshii, jonmag, Kino, naggy, Swiddow, pescirope, mercierus, jordanza, grrz, galgamer, oskode, Firmus, Elainejyl, paranoid
Comments
on 20. December 2025, 15:32 by grrz
Beautiful puzzle!
on 4. December 2025, 20:33 by Titus Adduxas
What a beautiful puzzle. Some brilliant logic especially with the break in (thanks for the clarification Jooshy). The interacting lines including the invisible ones made for a really interesting but challenging solve (for me anyway)
