Logic Masters Deutschland e.V.

Product of sum-thing

(Published on 2. March 2026, 06:17 by Lithium-Ion)

I hope that you enjoy this puzzle about sums and products. Feedback is always appreciated! The rules are as follows:
Normal Sudoku rules apply. The product of the digits on the red part of a line equals the sum of the digits on the blue part of the line. Digits may repeat along lines if allowed by other rules. Cells that are a knight's move in chess away from each other are not allowed to contain identical digits.
You can play this puzzle via the following link: https://sudokupad.app/idps48454c

Solution code: Digits in row 5, read from left to right.


Solved by SeveNateNine, PuzzleJohn, DigitCounter, by81996672, godgamer2, itsfysh, Silentdodo, aae, TeamSchmidt, Krisonium, lancer102rus, Piff, stephan_71, zuzanina, Bjd, dfu, jlaitio, Wetuts, johnreid, luuu, ... Mystery, JRaunak, BellBear, medini.the.genie, sarabtx, ppdswiss, lm_12, Partario, drkrupp, beansontoast_, Timofei, johnathan_higgins, TheGrand547, ARCSparky, Debba, Arrtho, Asphodel, osmie, wacfwaef
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Comments

on 3. March 2026, 21:51 by drkrupp
Was stuck for a while, but puzzle opened up once you find the right line-pair to start with

on 3. March 2026, 20:40 by ppdswiss
Really good maths based sudoku . . . very challenging as you move round it but very satisfying too.

on 2. March 2026, 17:58 by Ragna
Cool idea! Fun puzzle. Thank you. :-)

Last changed on 2. March 2026, 15:37

on 2. March 2026, 15:34 by Rollo
Eine schöne neue Idee. Ob das auch ohne Springerzug-Regel geht?

on 2. March 2026, 15:31 by wuc
Underrated 2.5* puzzle to me. Great setting thx.

on 2. March 2026, 12:27 by jlaitio
High five to everyone who struggled because they forgot the knight's move rule :)

Difficulty:3
Rating:90 %
Solved:51 times
Observed:0 times
ID:000RPO

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Solution code:

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