Residual accrual
(Published on 1. August 2025, 05:30 by NicoD)
Rules
Normal sudoku rules apply.
All lines, except one impostor, are both "region sum lines" and "modular lines". The impostor line (to be determined) is neither of those but is a "renban line".
Region sum lines: box borders divide those lines into segments with the same sum.
Modular lines: any three adjacent digits along those lines have different residues modulo 3 (i.e. one digit from {1,4,7}, one from {2,5,8}, and one from {3,6,9}).
Renban line: along this line, digits form a consecutive sequence in any order.
Solution code: Column 3
Comments
on 1. August 2025, 20:17 by cozmic72
Lovely puzzle, though not as difficult as I would have expected. Narrowing down the candidates for the naughty line was just a formality at the beginning of the solve.
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ND: First you must identify the naughty line!
on 1. August 2025, 13:05 by wuc
Added to favorites. Awesome setting. 3.5-4* for me. Loved every second thx.
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ND: Thank you for the kind comment!
on 1. August 2025, 09:14 by Snookerfan
Very nice, thank you!
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ND: Glad you enjoyed!
on 1. August 2025, 08:17 by Elliott810
Another brilliancy! Thank you:)
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ND: You are welcome!
