This is my second puzzle in a trilogy about mysterious lines. I constructed this puzzle on September 6, 2021. The first one in the series is Mysterious Lines.
Rules:
Normal sudoku rules apply. For each line, exactly two of the five following properties hold. No two lines have the same pair of properties.
1. Whispers: Adjacent digits on a line have a difference of at least 5.
2. Renban: A renban line strictly contains a series of consecutive digits, not necessarily in order.
3. Arrow: One end of a line is a circle, and all other digits along the line sum to it.
4. Palindrome: The sequence of digits on a palindrome line reads the same from either direction.
5. Thermometer: One end of a line is a bulb, and all digits along the line increase from it.
Puzzle:
Solution code: Enter rows 6 and 9
on 21. August 2024, 02:26 by ViKingPrime
You shouldn't let the difficulty rating throw you, this is entirely approachable if you give it a few moments at the beginning to really mull over the implications of the rules. Excellent setting.
on 17. November 2023, 19:42 by Bankey
Fantastic puzzle. Thanks, @ mathpesto:). Agree with Richard, the puzzle deserves more solves!!
on 25. January 2023, 23:39 by StephenR
Nice puzzle, thanks.
on 18. December 2022, 11:02 by Vebby
Wonderful execution! Deserves way more solves!
on 6. August 2022, 19:52 by Richard
Wonderful puzzle!
If you take a close look at all the possible combinations and take some time to write down what IS possible and what ISN'T, the solution will unfold in a very natural way, making this a truly pearl to discover! Very well set; I am impressed!
Thanks a lot for this one.
Fellow solvers, give it a go. Puzzles like this need far more solves than the lousy current 6!
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@Richard: Thank you so much for going way, way back to all these early puzzles of mine and for your thoughtful comments :) -Math Pesto
on 19. June 2022, 03:06 by mnasti2
Lots of fun! Glad I scrolled back
on 8. April 2022, 09:53 by Mody
Klasse
on 29. October 2021, 03:40 by kaitoJD
Weird break-in but fun nonetheless. The 7th combo eluded me for a bit since it’s counterintuitive. Well made!
on 11. October 2021, 19:10 by mathpesto
Added a link to solve on CtC
on 29. September 2021, 21:39 by mathpesto
Added more tags.