Uncheckered
(Published on 8. September 2025, 16:10 by brandon_bot)
When I was solving mathpesto's "Checkered" puzzle, I initially misinterpreted the Battenberg ruleset to mean something else!
Despite working off the wrong rules, what followed was a pretty neat opening sequence of deductions (up until the sudoku broke). This puzzle attempts to preserve that break-in as faithfully as possible.
Rules:
- Region sum lines: Digits on a blue line have the same sum in each 3x3 box the line is in.
- Dynamic fog: Most of the grid is covered in fog. Placing a correct digit may clear some fog somewhere in the grid.
- Grey squares: Whenever a 2x2 block of cells contains exactly 2 odd and 2 even digits, a grey square symbol is given. If there is no symbol, the composition is not allowed.
Solve online: Sudokupad
Happy solving!
Solution code: Row 1 from left to right.
Last changed on -
Solved by jalebc, lianarox, SKORP17, Joyofrandomness, Megalobrainiac, efnenu, cmigas, illegel, jinkela114514, jkuo7, dickey, MartinR, NorthCoastAsher, DiMono, QuiltyAsCharged
Comments
on 29. November 2025, 07:04 by QuiltyAsCharged
Great puzzle, and more challenging than I expected. The break-in is a neat idea
on 17. October 2025, 22:18 by DiMono
This was a really fun puzzle. Took me a minute to realize what the break-in was, and I enjoyed how the clues worked together.
