Normal sudoku rules apply. Digits on a killer line must sum to a specific number as determined by the line's color, and may NOT repeat on the line. The sums are as follows: orange = 8; olive green = 9; turquoise = 10; grey = 11. Digits in a quadruple circle must appear in the surrounding cells at least once. 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 15. June 2023, 18:56 by Moses*
Hi PDN777, long time no see!
This was the perfect puzzle to come back to take care of you're broken heart. Hope i can find the time to do some more of your wonderful puzzles!
on 19. January 2023, 09:34 by RussKozerski
Happy to say that I was able to complete the puzzle without becoming broken hearted myself. Though I did make it harder on myself by forgetting to do sudoku. Very enjoyable puzzle by PDN, as usual. Thank you.
on 7. February 2022, 21:54 by donk3y
I loved the grid art here, a beautiful puzzle!