Modular Lines: Along the line, any run of three digits must all have different remainders under division by 3.
Killer: Digits in a cage may not repeat and must sum to the given total.
f-puzzles: https://f-puzzles.com/?id=23gg563p
CTC: https://tinyurl.com/2hs59ssh
Solution code: Row 3 + Column 5 (18 digits)
on 11. June 2023, 11:59 by chiqiangluoli
Nice opening