Region Sum Arrows
(Published on 20. September 2025, 18:15 by Md88keys)
by Md88keys
Play in Sudokupad
Normal sudoku rules apply.
Region Sum Lines: Box borders divide blue lines into segments with the same value, which is the sum of the digits on that segment. Different lines may have different segment values.
Blue lines also function as arrows. The sum of all the digits on a blue line equals the two digit number in the attached oval.
Note: Blue lines are attached to each oval, but the digits in the oval are not part of a region sum segment.
Solution code: Row 7
Comments
on 8. October 2025, 07:04 by ghostmary
Really enjoyed this combination of rules. Very satisfying to work through the logic. Thanks for sharing!
on 24. September 2025, 00:07 by AngusWBA
Amazing combination of rules!
on 22. September 2025, 01:16 by PinkNickels
Excellent! Neat concept and incredible execution. Bravo.
on 21. September 2025, 20:37 by Franjo
Nice and easy break-in, but it got harder through the mid-solve. Thank you very much for creating and sharing this lovely puzzle with an unusual and interesting ruleset.
on 21. September 2025, 18:29 by GeorgeTheToad2
I need lessons in multiplication. Kept getting the long line sum incorrect. When I finally multiplied correctly it finished quite quickly. Nice constraints.
on 21. September 2025, 15:58 by Exigus
Interesting logic with that rule combination. Thanks!
on 21. September 2025, 10:28 by Snookerfan
Excellent puzzle, 2 stars for me, thank you!
on 21. September 2025, 07:37 by femto113
cool idea
on 21. September 2025, 05:03 by Hengist
Very interesting rule combination that allows for a lot of logical deductions, none of which are too difficult to arrive at. I'd also rate the difficulty 2* rather than 3*.
on 20. September 2025, 23:34 by juddimal
Great rule combination. Loved it.
on 20. September 2025, 22:18 by sujoyku
Lovely puzzle! For me, 3 stars felt right. Thank you, Md88keys!
on 20. September 2025, 20:36 by Adrian71
Fun puzzle, I enjoyed a lot! I agree with wuc about the difficulty
on 20. September 2025, 20:17 by wuc
Very nice smooth puzzle. To me 2*. I like the math playing here. Thx for sharing.
