Yin Yang Doubler Uniqueness
(Eingestellt am 3. April 2026, 19:22 Uhr von Oddlyeven)
Rules: Normal Sudoku rules apply. Put the digits 1 to 9 once each into every row, column and box.
Yin Yang Doublers: Shade some cells in the grid such that all shaded cells are orthoganally connected and all unshaded cells are orthogonally connected. No 2x2 may be all shaded or all unshaded. A shaded cell has a value equal to twice its digit. An unshaded cell has a value equal to twice its digit minus one (double the digit first, then subtract one).
Uniqueness: On each of the constraints below, values do not repeat anywhere in the puzzle. For example, if there is a shaded 5 (value 10) on a renban, shaded 5 can't appear anywhere else on a renban, but unshaded 5 could because it has a value of 9.
Renban: Values on a purple line form a set of consecutive numbers with no repeats.
Arrows: Values along an arrow sum the value in that arrow's circle.
X: Two cells joined by an X have values that sum to 10.
Black Dots: Two cells joined by a black dot have values where one is double the other.
Links:
SudokuPad: https://sudokupad.app/yl0n45rfll
Lösungscode: Column 8, top to bottom (9 digits).
Kommentare
am 5. Juni 2026, 15:10 Uhr von daggerMason
A cut above. Thank you!
am 16. Mai 2026, 21:35 Uhr von Djirt
Спасибо, потрясающая логика! Очень понравилось!)
am 4. Mai 2026, 19:32 Uhr von GWilliams00
Fantastic puzzle, one of my favorites in recent memory! The break-in taught me what I needed to know to make the rest of the solve super smooth. I found the ruleset quite intuitive, after taking a moment at the beginning to internalize what values a digit could have given its shading.
am 4. Mai 2026, 01:55 Uhr von Ragna
That ruleset is VERY confusing! ;-)
am 20. April 2026, 03:54 Uhr von Agent
Great puzzle, very precise solution path!
am 20. April 2026, 01:44 Uhr von ViKingPrime
You've got to stop pulling stunts like this, you're going to give someone a brain injury.
am 9. April 2026, 11:35 Uhr von mercierus
Very nice, I made the same mistake twice on the double arrow thinking there was only one way of doing it and once I realized it, it became a smooth solve. Thank you for this puzzle!
am 5. April 2026, 02:43 Uhr von polcat
Incredible puzzle! Thank you
am 4. April 2026, 05:30 Uhr von rameshsrivats
Mindbendingly magnificent
am 4. April 2026, 03:57 Uhr von Crusader175
Really nice construction!
am 3. April 2026, 23:49 Uhr von wuc
63 very joyful minutes. Awesome setting thx.
am 3. April 2026, 21:38 Uhr von Douglass
Majestic puzzle
am 3. April 2026, 19:32 Uhr von Nurator
Mind bending fun!
am 3. April 2026, 19:29 Uhr von Manta-Ray
Lots of very interesting logic, great puzzle!
