Sudoku - Position Sums (Leftover DSC2024)
(Published on 25. December 2024, 08:00 by Richard)
Position Sums
Solve online in Penpa+ or in Sudokupad.
Apply classic sudoku rules.
Clues outside the grid refer to A and B. These are the digits in the first two cells from above or the left. The clue in the white background indicates the sum of A and B; the clue in the grey background indicates the sum of the digits on the Ath and Bth position from that side.
Solution code: Column 6
Comments
on 1. January 2025, 16:21 by Playmaker6174
Great fun puzzle, thanks!
on 27. December 2024, 17:55 by Franjo
Very nice puzzle with an amazing symmetrical setting. Thank you very much for creating and sharing this gem.
on 26. December 2024, 15:10 by glum_hippo
Nice to see a really elegant Position Sums puzzle!
on 26. December 2024, 15:02 by marcmees
Nice. thanks. - changing to 9 digit solution codes ? :-)
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Hahaha. For this one for sure. I created this one in autumn 2023 (I write for championships well in advance) so I had no idea anymore which part was the ending. So I solved it myself a few days ago (and remembered then very well that column 6 is the last one to solve.) So it felt ok to pick only one column. :-)
on 26. December 2024, 10:07 by ordnanceordinance
Fun puzzle, never seen this constraint before, but it felt smooth once I realized how it worked. I think putting a question mark in the white spaces would be clearer!
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Thanks for your comment ordnanceordinance!
I don't think question marks would make things more clear. There is always a sum of the first digits, so a question mark doesn't add any information compared to blank space. Aesthetic-wise, I prefer the absence of any characters here. :)
on 26. December 2024, 02:07 by Greg
@thebriskt
They are still the sum of the Ath and Bth numbers, you just aren't told what the sum of A and B are.
on 26. December 2024, 00:17 by thebriskt
What's the deal with the numbers in grey that have no adjacent digit in white?
