Sum Some Yin Yang
(Published on 10. September 2025, 22:34 by sanabas)
Set for an impostor challenge, my attempt to impersonate TVDK
You can attempt this puzzle at this sudokupad link
Good Luck!
Questions, comments, feedback are always welcome, either here or on the CTC community discord.
The rules:
Normal sudoku rules do NOT apply
Somedoku: Fill every cell with a digit from 1-9. Digits may (and indeed must) repeat in some rows/columns. In each row N (row 1 at the top to row 9 at the bottom), there are exactly N different digits. In each column N (column 1 on the left to column 9 on the right), there are exactly N different digits.
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 unshaded. All prime digits (2, 3, 5, 7) are shaded. All square digits (1, 4, 9) are unshaded.
Sum Lines: On each blue line and on each pink line, the sum of shaded cells is equal to the sum of unshaded cells.
Kropki: Digits in cells separated by a black dot have a 2:1 ratio. Not all dots are necessarily given.
German Whispers: On green lines, adjacent cells along the line have digits that differ by at least 5.
Three of my puzzles which are yet to be rated:
Release the snakes!
Really, don't open the box
Why did you open that?
If you enjoy this one, please try them too.
You can attempt this puzzle at this sudokupad link
Good Luck!
Questions, comments, feedback are always welcome, either here or on the CTC community discord.
The rules:
Normal sudoku rules do NOT apply
Somedoku: Fill every cell with a digit from 1-9. Digits may (and indeed must) repeat in some rows/columns. In each row N (row 1 at the top to row 9 at the bottom), there are exactly N different digits. In each column N (column 1 on the left to column 9 on the right), there are exactly N different digits.
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 unshaded. All prime digits (2, 3, 5, 7) are shaded. All square digits (1, 4, 9) are unshaded.
Sum Lines: On each blue line and on each pink line, the sum of shaded cells is equal to the sum of unshaded cells.
Kropki: Digits in cells separated by a black dot have a 2:1 ratio. Not all dots are necessarily given.
German Whispers: On green lines, adjacent cells along the line have digits that differ by at least 5.
Three of my puzzles which are yet to be rated:
Release the snakes!
Really, don't open the box
Why did you open that?
If you enjoy this one, please try them too.
Solution code: Column 7, top to bottom
Solved by gdc, SKORP17, bansalsaab, TVDK, Scojo, tuturitu, aqjhs, NEWS, wensty, Gilliatt, jkuo7, Dentones, clock, crosslegged, Kpn, WvdWest, Jasura, gUBBLOR, zonka, gnidan, SZCrow, garage, laquartetfan, Sewerin, Altynbek
Comments
on 12. September 2025, 13:32 by clock
♥
Last changed on 12. September 2025, 00:35
on 11. September 2025, 05:45 by TVDK
Very nice puzzle! It is a very good impersonation and congrats on fooling most people. (So good of an impersonation that I was originally going to set a yin-yang somedoku but ran out of time lol)
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thank you. Would've loved to see the reactions if both were Yin-yang somedokus.
on 10. September 2025, 22:36 by gdc
nice impersonation of TVDK and very enjoyable.
