Quadrophenia
(Published on 19. October 2024, 17:42 by Kafkapharnaum)
to which to can find the Act II sequel, "All Four One", here
RULES
Normal sudoku rules apply: Place the digits 1 to 9 in each row, column, and 3x3 box.
DOUBLE ARROW
– The sum of the digits along the line connecting the two circles is equal to the sum of the digits in these circles.
– Digits may repeat anywhere on the double arrow if allowed by other rules.
DUTCH WHISPERS
– Adjacent digits along the orange line must have a difference of at least 4.
– Digits may repeat on the orange line if allowed by other rules.
LOCKOUT LINE
– Digits along the darker blue line connecting the two diamonds must not be between in value nor equal to the digits in these diamonds, which must have a difference of at least 4.
REGION SUM LINE
– The 3x3 box borders divide the bright blue line into segments of the same sums.
Play the puzzle on Sudokupad
Solution code: The digits along the negative diagonal from r1c1 to r9c9
Comments
on 10. January 2026, 06:37 by SennyK
What a brilliant construction this is! I came here as a someone who has never done lockout lines before, and I am leaving as a PRO in those haha. Just lovely! :-)
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Not sure why I never received the notification for your comment, but thank you for the kind words on both of our 'Random Call' collabs, much appreciated -- glad you enjoyed these creations of ours!
on 10. November 2024, 19:31 by wullemuus
Enjoyable coffee-break puzzle with a very smooth solving path!
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Happy to receive new feedback from you, and glad you enjoyed the puzzle! Collabs might just be the future for me setting-wise, and in fact, I think you might have missed another collab of mine, called Bodysnatchers. You can find that puzzle in AnalyticalNinja's catalog (link above), where you'll also find tons more of goodies :D
on 4. November 2024, 16:40 by The Book Wyrm
Great puzzle! Very impressive interactions coming from just 4 lines. Interesting and enjoyable puzzle.
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Thank you for this excursion, and for the kind words, happy to hear you enjoyed our four-way creation! :D
on 24. October 2024, 07:00 by Krisonium
Came for the region sum line, stayed for the lovely interactions.
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Thank you for the solve and kind words, and especially for this feedback -- it's nice to hear that the tags are doing work!
on 21. October 2024, 22:36 by Piatato
Lovely, clever and smooth!
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Thank you so much for giving this one a shot, Piatato, thrilled to hear you enjoyed it! :D
on 21. October 2024, 20:10 by feethy
Beautiful puzzle for a beautiful collab! I really enjoyed the break-in and the way different clues interact, well done to all of you!
My guess:
99%Sneaky - Dutch Whisper
AnalyticalNinja - Region Sum Line
Chad - Double Arrow
Kafkapharnaum - Lockout Line
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Oh ho, looks like we have a winner here! Congratulations for not only solving the puzzle, but also getting a perfect score on the Guess the Setter minigame. We're not worthy! :D
on 21. October 2024, 01:10 by MattYDdraig
Beautiful puzzle, particularly the break-in.
99% Sneaky - Region Sum Line
Chad - Dutch Whisper
Analytical Ninja - Lockout Line
Kafkapharnaum - Double Arrow
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Thanks so much for being so consistently awesome Matt, and for the solve and kind words on our collab puzzle. Looks like your guess was juuust a little off though haha. The answer to the minigame is in the reply to one of the other comments :-)
on 19. October 2024, 22:33 by chrisj50
Lovely break-in & beautifully smooth solve after that. Great to see you all collab and produce a stunning puzzle. My guess at THE WHO’s who of lines?:
A.N. = Double arrows
99% = Region sums
Chad = Dutch whispers
Kafka = Lockout lines
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Hehe, we have a musically educated solver here (which I already knew from other series and comments ;-) Thanks so much for the solve and kind words, glad you enjoyed, and thanks also for venturing a guess -- I'm flattered that you correctly identified my clue, however, the rest are a little off XD You can find the answer to the minigame in the reply to one of the other comments!
