Brötchenstempel
(Published on 12. March 2024, 10:24 by Myxo)
Sandwiches were next on my list of outside clues that I have never used on a 9x9 grid. I am quite happy with how this puzzle turned out. Enjoy!
Rules:
Sudoku: Place each of the digits 1-9 exactly once in each row, column and box.
Palindromes: The sequence of digits along a grey line reads the same forwards and backwards.
Sandwiches: Clues outside the grid indicate the sum of the digits between the 1 and 9 in that row or column (or the parity of that sum).
Solution code: row 3 and row 6
Comments
on 2. April 2024, 14:39 by Piatato
Nice and smooth!
on 17. March 2024, 05:15 by KyleBaran
I had to "cheat" to learn that 0 counts as even. Should be in the rules somewhere.
(Zero is technically neither even nor odd, the same way that some people make a point about 1 NOT being a prime number in puzzles, so any time there is room for confusion you should be explicit)
Myxo: Sorry for the confusion, but I disagree. 0 is even by any mathmatical definition I could find. Same goes for 1 not being prime, btw (otherwise entire number theory is just invalid).
on 13. March 2024, 04:33 by wisty
Fantastic opening! The mid-solve was harder than 3-stars for me. Loved the geometry and how cohesive the puzzle was! Everything comes together well.
on 12. March 2024, 11:41 by Snookerfan
Brilliant! Thank you
on 12. March 2024, 11:10 by MicroStudy
this puzzle truly brought a spark to my day
