Deep Dive Twenty-Five (Killer sudoku)
(Published on 25. October 2025, 14:09 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.
- Killer cages: Digits in a cage do not repeat and must sum to 25.
Here you can solve the puzzle online:
Solution code: Row 7 from left to right (9 digits in total)
Comments
on 5. November 2025, 13:07 by Ragna
Fun puzzle - as always your puzzles. Very hard. Thank you. :-)
**
You are much welcome, Ragna, thank you for your comment! I am glad you had a fun solve.
Kind regards, sujoyku
on 5. November 2025, 12:38 by Christounet
Great interactions, as always in this serie! Can't wait for 26. Thanks :)
**
Thank you, Christounet! Twenty-six is already in the works. :) I am glad you enjoyed the interactions in this one.
Kind regards, sujoyku
on 3. November 2025, 13:21 by Djirt
Спасибо sujoyku, прекрасная работа! Если честно для меня это была работа на уровне 3*, но возможно потому что я увидел сразу все основные моменты!)
on 31. October 2025, 15:24 by rmm466ss
Devious yet delightful. Thank you!
**
You are much welcome, rmm466ss, thank you for your comment! I am glad you enjoyed the puzzle.
Kind regards, sujoyku
on 28. October 2025, 11:11 by Exigus
Great installment in the series. A slight tricky bit towards the end but otherwise a smooth solve. Thanks!
**
You are much welcome, Exigus, thank you for your comment! It is good to hear that you had a largely smooth solve.
Kind regards, sujoyku
on 28. October 2025, 10:02 by Piatato
Fun interactions throughout! :)
**
Thank you for your comment, Piatato! I am glad you liked these interactions.
Kind regards, sujoyku
on 27. October 2025, 00:03 by sunevora
Almost 4 hours but enjoyment throughout. What a treat!
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Thank you for your comment, sunevora! I am glad you enjoyed it.
Kind regards, sujoyku
on 26. October 2025, 20:37 by Draxie
Your puzzles rock! Thank you.
**
Thank you for your kind words, Draxie! I am glad that you enjoy my puzzles.
Kind regards, sujoyku
on 26. October 2025, 12:36 by Snookerfan
Another gem in this series. Maybe I was lucky to spot the intended steps quickly, because it was a relatively quick solve and therefore 2.5 to 3 stars for me. Thank you
**
You are much welcome, Snookerfan, thank you for your comment! I am glad that you liked the puzzle. I think it is as you say, it all depends on spotting the right steps at the right moment in time. Happy to hear you found it more approachable than 4 stars.
Kind regards, sujoyku
on 26. October 2025, 02:35 by RedBarchetta
Killer break in and then linear logic throughout - the challenge was just where was that line! Took me 2+ hours and I enjoyed it the whole time. Thanks, sujoku!
**
You are much welcome, RedBarchetta, thank you for your comment! I am glad that you liked the break-in and enjoyed the solve.
Kind regards, sujoyku
on 25. October 2025, 21:32 by Chaka
Beautiful! I just love this series and how logic appears to somehow be unique and different for each of its puzzles. Let's go, 26!
**
Thank you for your comment, Chaka! I am glad you enjoyed it. Let us see what I can come up with for 26. :)
Kind regards, sujoyku
on 25. October 2025, 20:06 by brskri
Pretty hard, after breaking into it bogged down in the middle. Nice interactions with working out which digits are restricted. Proud of myself for completing a 4* I usually don't have the patience.
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Congratulations, brskri, and thank you for your comment! It is good to hear that you enjoyed the interactions.
Kind regards, sujoyku
