Rules:
Normal sudoku rules apply.
Digits along the negative diagonal must not repeat.
Yellow lines are thermometers. Digits along each thermometer must increase starting from the bulb end.
Knobbly purple lines are palindromes. Digits along a palindrome line read the same forwards or backwards. Note: Both palindromes have one end at r5c5.
The digits along each arrow must sum to the digit in the circled cell.
Solution code: Row 1 then row 9, with no spaces
on 27. April 2022, 01:05 by Playmaker6174
Beautiful design with an interesting solve path :)
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Thank you so much! I really appreciate you taking a look at it.