Clef
(Published on 10. October 2024, 02:40 by ThePedallingPianist)
Normal 6x6 sudoku rules apply within the main grid. External cells (with dashed borders) do not need to be filled.
The grid is a torus for the purpose of all other constraints: e.g. r1c1 is considered directly below r6c1 and directly to the right of r1c6.
Yin Yang: Shade some cells such that all shaded cells are orthogonally connected, as are all unshaded cells, and no 2x2 area is fully shaded or unshaded.
Doublers: The value in a shaded cell is two times the digit it contains.
X Sums: Clues outside the grid give the sum of the first X values in the indicated column, where X is the first value seen.
Solution code: The X-sum clue that would appear at the bottom of column 3, had it been given (opposite the 17 clue)
Comments
on 11. October 2024, 12:11 by rich_27
I love this puzzle! One of my favourites of yours, such a beautiful solve. I loved the initial
'Ah, this must be the way to think about it'
'No, wait, that breaks'
'Oh, I see! It must be'
'Oh, no, can't be'
'Ahh, that, how beautiful!'
on 10. October 2024, 20:02 by abadx
A charming and approachable gem. I really wonder how these creations are possible
on 10. October 2024, 15:29 by Franjo
Another toroidal YY from TPP - and quite approachable! What a pleasure to see and solve this gem. Thank you very much for creating and sharing.
on 10. October 2024, 09:04 by yttrio
Had to definitely stretch my brain a bit to think about toroidal yin yang, but it was definitely worth the effort to solve this one, and overall not too tricky! It would be interesting to see if this could be expanded into a 9x9.
on 10. October 2024, 06:21 by Elker
Toroidal yin yang is so mind bending. I’m so impressed that you could set this and it solved very smoothly.
