Blockers
(Published on 5. March 2026, 14:58 by Fenners)
Thanks to Chinstrap and stream helpers for testing this! Good luck and hope you enjoy!
Puzzle: Blockers
Rules:
Normal 9x9 Sudoku rules apply.
Blockers: Digits in diamonds can never be used on a different clue type than the clue type the diamond lives on.
Renban: Digits on a purple line form a set of consecutive digits in any order.
Dutch Whispers: Two adjacent digits on an orange line must differ by at least 4.
German Whispers: Two adjacent digits on a green line must differ by at least 5.
Region Sum: Box border divide blue lines into segments of equal sum.
Solution code: Row 4, left to right, 9 digits no spaces:
Comments
yesterday, 23:46 by Fenners
Added colorblind friendly edition
yesterday, 22:50 by Fool on Hill
Loved the puzzle. FYI the contrast on the pastel lines is not great for those of us who are colour-blind. The Renban/Sum and two whisper varieties were both very close and I confused the sequence around box 5 and had to restart.
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Thank you! And apologies about the colour scheme. I've added a colour blind friendly version for future solvers. Thanks! --Fenners
And thanks for responding so quickly - and for another excellent puzzle!
on 6. March 2026, 16:29 by Nebuzaradan
What a satisfying puzzle! Quite hard to figure out precisely what the right question to ask is, and not much progress to make without discovering it; but everything fits together perfectly once the right question is discovered.
on 5. March 2026, 21:11 by emoney1374
Extremely good puzzle with unique logic
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Thanks for your comment! Glad you enjoyed it :) --Fenners
