Internal X-Sum Yin Yang
(Eingestellt am 10. Mai 2025, 01:40 Uhr von yttrio)
Rules:
Normal Sudoku rules apply.
Yin Yang: Shade some cells such that all shaded cells are orthogonally connected, all unshaded cells are orthogonally connected, and no 2x2 area is fully shaded or fully unshaded.
Small numbers in the corners of cells are internal X-Sum clues. The digit in a cell with a clue gives the total number of cells (including itself) of the same shading as itself seen in all horizontal/vertical directions combined (cells of the opposite shading block the vision). Those cells sum to the number given by the clue. Digits may repeat within a sum if allowed by other rules.
6x6 Example:
The image below shows a sample 6x6 puzzle and solution with the same rule set.
Play the example 6x6 in SudokuPad.
Lösungscode: Digits in cells that match the shading of r1c1 in row 8 (left to right) followed by digits in cells of that same shading in column 8 (top to bottom)
Kommentare
am 14. Mai 2025, 23:04 Uhr von Kawkaz
Great puzzle, enjoyable, challenging and highly rewarding.
am 14. Mai 2025, 09:00 Uhr von damo_89
After finishing the shading it did not look like there was enough information to finish the sudoku.. then the digits practically filled themselves in! Gorgeous
am 13. Mai 2025, 10:08 Uhr von StephenR
The best Internal X-Sum Yin Yang Sudoku I have done. Also the only Internal X-Sum Yin Yang Sudoku I have done. But this is not damning with faint praise - this is a great puzzle, thanks.
am 12. Mai 2025, 12:52 Uhr von Agent
Smooth and lovely!
am 11. Mai 2025, 16:50 Uhr von wuc
Took me a while to break in. Very smooth enjoyable puzzle thx.
am 11. Mai 2025, 16:31 Uhr von Blashyrkh
Fantastic!
am 11. Mai 2025, 08:08 Uhr von VitP
sort out row 1 to unlock
am 11. Mai 2025, 00:09 Uhr von Calvinball
That's a "wow" from me. Needed a yttrio yin yang, it's been too long!
am 10. Mai 2025, 23:59 Uhr von Exigus
Smooth puzzle with an interesting rule set, thanks
am 10. Mai 2025, 19:05 Uhr von Snookerfan
Gorgeous and smooth as butter! Thank you
am 10. Mai 2025, 16:33 Uhr von Franjo
Wonderful YY-cave-sudoku with incredibly good setting leading along the smooth solution path! Thank you very much for creating and sharing another one of your beautiful puzzles.
am 10. Mai 2025, 14:30 Uhr von Christounet
The combination of clues works wonders. Very enjoyable! Thanks :)
am 10. Mai 2025, 13:56 Uhr von LehanLehan
So much pleasure in solving as always, thanks a lot,yttrio.
am 10. Mai 2025, 13:53 Uhr von marcmees
Very nice. thanks
am 10. Mai 2025, 10:28 Uhr von Wuschel
Very cool and smooth. Thanks!
am 10. Mai 2025, 05:14 Uhr von rameshsrivats
Very nice
am 10. Mai 2025, 03:37 Uhr von Elliott810
Beautiful puzzle! Thank you:)
