Akin (Region Sum Lines + Kropki)
(Published on 20. October 2025, 15:16 by sujoyku)
Rules:
- Normal sudoku rules apply, i.e. each row, column, and 3x3 region has to contain the digits from 1 to 9 once each.
- Region Sum Lines: Box borders divide the blue lines into segments with the same sum. (Different lines may have different sums.)
- Kropki: Digits joined by a black dot are in a 1:2 ratio. Digits joined by a white dot are consecutive. (Not all black and white dots are necessarily given.)
Here you can solve the puzzle online:
Solution code: Row 1 from left to right (9 digits in total)
Comments
on 18. November 2025, 23:33 by Lovejoy
Wonderful as always!!
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Thank you, Lovejoy!
Kind regards, sujoyku
on 2. November 2025, 22:12 by Lenivaya_Joppa
Thank you for this nice puzzle, dear sujoyku! :)
**
You are much welcome, Lenivaya_Joppa, thank you for your comment! It is great to hear you enjoyed it.
Kind regards, sujoyku
on 23. October 2025, 16:44 by Olive
Loved the break-in - thank you!
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You are much welcome, Olive, thank you for your comment! I am glad that you liked the break-in.
Kind regards, sujoyku
on 21. October 2025, 01:53 by krulltor
Very good puzzle, I had a lot of fun solving it. Thank you, sujoyku!
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You are much welcome, krulltor, thank you for your comment! I am glad you had a fun solve.
Kind regards, sujoyku
on 21. October 2025, 00:11 by VitP
one dot to disambiguate them all, one dot to find them. one dot to bring them all, and on the grid unwind them.
almost gas.
**
Thank you for your fun comment, VitP! Can I get a different role than playing the Sauron-equivalent in this Lord of the Dots saga? :)
Kind regards, sujoyku
on 20. October 2025, 23:31 by Ragna
Fun puzzle - as always! Thank you. :-)
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Thank you for your comment, Ragna! I am glad you had a fun solve.
Kind regards, sujoyku
on 20. October 2025, 22:16 by googuee
Nice and neat! Thanks @sujoyku.
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Thank you, googuee! I am glad that you liked the puzzle.
Kind regards, sujoyku
on 20. October 2025, 21:10 by Christounet
Lovely puzzle! Thanks :)
**
You are much welcome, Christounet, thank you for your comment! It is great that you enjoyed it.
Kind regards, sujoyku
on 20. October 2025, 18:56 by Snookerfan
Very nice and enjoyable, thank you!
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Thank you, Snookerfan! It is great to hear you found it to be enjoyable.
Kind regards, sujoyku
on 20. October 2025, 18:48 by wuc
Minimalistic - Fantastic. Great break in. Thx for sharing.
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You are much welcome, wuc, thank you for your comment! I am glad you liked this construction and its break-in.
Kind regards, sujoyku
on 20. October 2025, 18:46 by blackjackfitz
thanks sujoyku, I enjoyed that
**
You are much welcome, blackjackfitz, thank you for commenting! I am glad that you enjoyed the puzzle.
Kind regards, sujoyku
on 20. October 2025, 18:45 by ketchup_monster
Very nice puzzle with a fun break-in and equally fun solve.
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Thank you, ketchup_monster! It is great to hear you liked the break-in and had a fun solve.
Kind regards, sujoyku
on 20. October 2025, 18:01 by Myfyr MJ
Very nice puzzle but possibly a 3* difficulty for me.
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Thank you for your comment, Myfyr MJ! I am glad that you liked the puzzle. I thought it might be between 2 and 3, but after testing feedback decided that it probably was closer to 2*. Thanks for sharing your perspective!
Kind regards, sujoyku
on 20. October 2025, 17:50 by Wuschel
Nice and smooth as usual. Thanks
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You are much welcome, Wuschel, thank you for your comment! I am glad you enjoyed a smooth solve.
Kind regards, sujoyku
