Little Killer Sandwiches
(Published on 6. September 2023, 07:00 by Jreg)
Normal anti-king* Sudoku rules apply: place the digits 1-9 once each in every row, column and 3×3 region so that no digit re-appears in any of its surrounding cells, not even diagonally.
The clues outside the grid all have two meanings: they give the sum of the diagonals indicated by the arrows, AND they give the sum of digits "sandwiched" between the numbers 1 and 9 in the clue's row or column. (The latter doesn't apply to the clue in the top left corner as it doesn't see any row or column directly.)
*(Anti-king = cells which are a chess king's move away cannot contain identical digits.)
CTC Link
This might be the hardest puzzle I've created to date.
Solution code: Digits in row 5 followed by digits in column 7; a total of 18 digits with no spaces or other symbols in between.
Comments
on 17. August 2024, 01:58 by QuiltyAsCharged
A great puzzle, elegantly set. Those few clues are doing a lot!
on 16. October 2023, 15:49 by Bankey
Fun puzzle. Thanks, @ Jreg :).
on 7. September 2023, 21:49 by SirThomas
I loved solving this puzzle, brilliant usage of all clues.
on 7. September 2023, 17:07 by Snookerfan
Great puzzle! Thank you
on 7. September 2023, 03:31 by argl
Reallty clever and interesting throughout, i loved it. thanks for setting!
on 6. September 2023, 13:36 by samuel1997
This puzzle is nice! Some parts are tricky though, and the use of 36 clue is brilliant!
on 6. September 2023, 11:14 by Kworb
Loved this puzzle! Challenging all the way through.
