Palindrome Hidden Chessboard
(Published on 12. December 2022, 00:16 by Nai Night)
Rules:
- Normal Sudoku rules apply. Killer Cage. Palindrome.
- Killer Cage: Digits in a cage cannot repeat and must sum to the small clue in the top left corner of the cage.
- Palindrome: The gray line is a palindrome, i.e. the digits read the same forwards and backwards.
Solve online:

Solution code: Row 3, followed by Row 5 (18 digits, no spaces).
Solved by SKORP17, OhHeyGuysItsMax, Megalobrainiac, jalebc, Bjd, SquaringSquirrel, PippoForte, finger