Normal sudoku rules apply. Digits along the palindrome lines must read the same forward and backwards. The numbers on the outside of the grid refer to the adjacent row or column, and indicate that the digits residing between the 1 and 9 must sum to that number (do not include the 1 or 9 in the sum). Neighboring digits marked with a white Kropki dot are consecutive. Not all dots are given. I think this puzzle is 2 stars out of 5 for difficulty for many solvers. As always, comments welcome!
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Solution code: First row of puzzle, and fourth column of puzzle (read top to bottom). Enter as a string of 18 digits, no spaces.
on 20. June 2024, 21:56 by cozoq
Fantastic puzzle! Wonderful logic and path throughout the solve.
on 5. August 2022, 15:56 by PDN777
Thanks @Schlopsi and @Chelo. Enjoy your sandwiches! :-)
on 4. August 2022, 02:28 by Schlopsi
Lovely lunchbreak!
on 22. July 2022, 14:58 by Chelo
Nice puzzle @PDN777, now I'm hungry and have my lunch!..