Normal sudoku rules apply.
Region Sum Lines: The digits along any given line must have the same sum within each 3x3 region it passes through. Different lines may have different sums. If a line enters a 3x3 box more than once, each segment of the line within that box counts separately for the sum.
Have fun, leave a comment if you enjoy the puzzle!
PS: I stream solving sudoku like puzzles two days a week, as well as posting Let's Plays of puzzle games like Blue Prince. You can check out the channel, as well as some videos I have made about setting puzzles, at my YouTube channel here.
Solution code: Row 8
on 7. September 2025, 17:06 by Exigus
Short but sweet, thanks!
on 7. September 2025, 15:33 by Franjo
Another beginners friendly zetamath puzzle making a perfect introduction of RSL! Thank you very much for creating and sharing this lovely puzzle.
on 7. September 2025, 11:54 by sujoyku
Incredibly smooth! Puzzles like this make quite obvious to me why RSL is one of my all-time favourites. Thank you, zetamath!
on 7. September 2025, 04:13 by TonberryJava
my second ever zetamath puzzle! i'm changing my nickname to 'butter', because i'm on a roll!
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