Double Counting
(Published on 17. July 2026, 15:44 by TrivialHomology)
Rules
- Standard Sudoku rules apply. Place the digits 1-9 once each in every line, column and 3×3 box.
- Modifier Cells. Shade some cells in the puzzle, such that each row, column and 3x3 box contains exactly one shaded cell. Additionally, digits in the shaded cells do not repeat.
- Values. The value of an unshaded cell is its digit. The value of a shaded cell is one more than the digit it contains.
- Counting Circles. The value of a circled cell counts how many circled cells have that value.
- Kropki dots. Cells separated by a white dot, have consecutive value. Cells separated by a black dot have value with ratio 1:2.
- Escape Pod
- Worm Hole Yin Yang (somehow this wasn't solved yet, maybe its too hard?)
Click on the picture to open the puzzle in Sudoku-Pad
Also check out my other puzzles, I am particularly satisfied with these:
Solution code: Column 1 from top to bottom.
Solved by lsw770770, Snookerfan, PierreTombal, Myxo, Bjd, Dcs, amirs, SKORP17, sorryimLate, Isael, BlazingSnow, bodemeister, Gunkan
Comments
on 18. July 2026, 15:20 by amirs
Such a beautiful puzzle!! So confusing at first :)
on 17. July 2026, 23:58 by Myxo
Lovely!
on 17. July 2026, 20:30 by PierreTombal
Quite a brain breaker to even get started, but very satisfying to complete.
Last changed on 17. July 2026, 22:40
on 17. July 2026, 18:56 by Snookerfan
Fantastic! Such a tiny twist on familiar rules gives such a major sting in the brain! Very clever and enjoyable. Thanks
_____
Reply by TrivialHomology: Thank You for the kind words! Setting this one felt very much like exploring where the few simple rules guided me. After the initial set-up of the circles, the puzzle basically set itself. I would be very curious to see this idea developed a bit more :)
