Grouping All but Two
(Published on 22. April 2026, 11:47 by Sneppix)
Grouping All but Two
Rules:
- Normal sudoku rules apply.
- Divide all cells in the grid except for r9c7 and r9c9 (the two grey cells) into groups of orthogonally connected cells. Every group contains exactly one cell with a white circle. The digit in a circle cell, N, indicates the number of cells in that group. All cells in a group have the same parity as N. r9c7 and r9c9 are not in any of the groups and may be any digit, but are still affected by normal Sudoku rules.
- As an example, a circle cell containing a 4 is in a group of 4 orthogonally connected cells that are all even.
- *Note: Adjacent cells with the same parity could still be part of different groups; the parity restriction solely affects cells within the same group.*
- Digits separated by a white dot are consecutive. Not all dots are given.
SudokuPad link
Have fun!
Solution code: Column 8, top to bottom
Solved by vollbesonderbar, SKORP17, ZornsLemon, tnop62830, Andrewsarchus, SPring, SirWoezel, mew_rocks, Fool on Hill, QuiltyAsCharged, samuel1997, Ragna, tapocol, dellC, karlmortenlunna, jkuo7, Khatru, ... GWilliams00, Morisenseiisgod, jinkela114514, Brodie2000, mse326, OGRussHood, steeto, mir85, JohnyK_413, Illuminated, Zzzzz..., snowbaby, thephantomplayer, Uhu, BlueShifted, elmers, alta1r, haoju
Comments
on 30. April 2026, 23:24 by QuiltyAsCharged
Great puzzle! At first it looked like this would be a real monster. But once I got started and remembered an idea from a previous Grouping puzzle, it came together smoothly.