El Trece (Diagonal Killer Sudoku)
(Published on 7. February 2025, 20:31 by sujoyku)
- Normal sudoku rules apply, i.e. each row, column and 3x3 region has to contain the digits from 1 to 9 once each.
- Diagonals: On the main diagonals, digits do not repeat.
- Killer cages: Digits in a cage do not repeat and must sum to 13.
Here you can solve the puzzle online:
Solution code: Column 9 from top to bottom (9 digits in total)
Comments
on 20. July 2025, 03:29 by PinkNickels
You have made many, many excellent puzzles. I believe this is up near the top of your list for 2* puzzles. Incredible setting.
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Thank you for your kind words, PinkNickels! It is great to hear that you enjoyed this and other of my puzzles.
Kind regards, sujoyku
on 27. April 2025, 15:18 by Lenivaya_Joppa
Thank you for this nice puzzle, dear sujoyku! :)
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Thank you for your kind comment, Lenivaya_Joppa!
on 22. February 2025, 08:43 by Lovejoy
Always a joy to see a new sujoyku killer sudoku posted!
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Thank you for your kind words, Lovejoy! I am glad you liked the puzzle.
Kind regards, sujoyku
on 14. February 2025, 20:35 by MattYDdraig
Another very nice killer. How high will these sums go?
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Thank you for your comment, MattYDdraig! I am glad you liked it. I do not know where I will stop (already experimenting with 15-cages though ^^). Glum_hippo and Piatato have recommended me a killer puzzle series that even went up to 37.
Kind regards, sujoyku
on 13. February 2025, 10:52 by HesitantEvil
This was really fun to solve. Felt a lot more difficult than El Doce!
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Thank you for your comment, HesitantEvil! I am glad you had fun solving. I agree with your assessment of difficulty, to me this one seemed harder than El Doce as well.
Kind regards, sujoyku
on 10. February 2025, 10:09 by AnebodaSlatorp
Smooth!
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Thank you for your comment, AnebodaSlatorp! Great to hear you had a smooth solve.
Kind regards, sujoyku
on 10. February 2025, 07:35 by MSDOS
A couple of tricky spots, but a really nice puzzle :) Thanks!
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You are much welcome, MSDOS, thank you for your comment! I am glad that you liked it.
Kind regards, sujoyku
on 8. February 2025, 16:02 by dennischen
thought this was tricky for a 2*! thanks for the puzzle!
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You are much welcome, dennischen, thank you for commenting! I am glad you enjoyed the puzzle. I had uploaded it as 3, but probably it is somewhere between 2 and 3 stars.
Kind regards, sujoyku
on 8. February 2025, 04:07 by OGRussHood
The 13s didn't bring me any bad luck tonight. A nice, smooth solve.
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Thank you for your comment, OGRussHood! It is good to hear the 13s didn't do any harm and you had a smooth solve.
Kind regards, sujoyku
on 8. February 2025, 00:03 by GeorgeTheToad2
My 999th solve on LMG and it was very enjoyable.
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Congratulations on your 999th solve, GeorgeTheToad2! What will be your No. 1000? I am glad you enjoyed the solve.
Kind regards, sujoyku
on 7. February 2025, 22:45 by DanishDynamite
Nice flow!
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Thank you for your comment, DanishDynamite! I am glad you liked the puzzle's flow.
Kind regards, sujoyku
on 7. February 2025, 20:58 by kodra22
Lovely puzzle, I always enjoy math-y break-ins. I marked it as 2* as I solved it in under 20min
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Thank you for your comment, kodra22! I am glad that you liked the puzzle. Considering difficulty: It might be between 2 and 3 stars. I thought the puzzle was a bit tougher than straight 2 stars, so I am happy to find out how you the solvers estimate it.
Kind regards, sujoyku
