Rules:
- Normal sudoku rules apply, i.e. each row, column, and 3x3 region has to contain the digits from 1 to 9 once each.
- Index Lines: Each turquoise line is an Index Line, i.e. the number in the Nth cell along such a line (starting from the diamond) indicates the position along the line where the number N appears. For example, if a diamond cell contains a 3, the third cell along that line must have a 1.
- Up to N-sums: Numbers outside of the grid are Up to N-clues. An Up to N-clue outside the Row or Column N indicates the sum of all digits up to the cell that contains the digit N. (The digit N itself is not included in the sum.)
Here you can solve the puzzle online:
Solution code: Row 1 from left to right (9 digits in total)
on 17. May 2026, 01:26 by Lenivaya_Joppa
Thank you for this nice puzzle, dear sujoyku! :)
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You are much welcome, Lenivaya_Joppa, thank you for your comment! I am glad that you liked it.
Kind regards, sujoyku
on 11. May 2026, 19:55 by DaniK
Super fun puzzle!
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Thank you, DaniK!
Kind regards, sujoyku
on 9. May 2026, 15:27 by elpadrinoIV
I don't get how index lines work for lines with length 10.
Shouldn't the number on the end of that line indicate where the "10" goes? How does that work?
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You are exactly right, elpadrinoIV, the number in the 10th position indicates where 10 appears on such a line. That is also why the rules refer to "numbers" instead of "digits". As a small hint: 10s might seem out of bounds, but can appear on the line in this one. If you like to get a more direct nudge, let me know.
Kind regards, sujoyku
on 9. May 2026, 02:56 by Crusader175
Fun puzzle!
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Thank you, Crusader175!
Kind regards, sujoyku
on 9. May 2026, 00:39 by pmays123
Incredible! This was a joy to solve. Thanks :)
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You are much welcome, pmays123, thank you for your comment! I am glad you had a joyful solve.
Kind regards, sujoyku
on 8. May 2026, 19:07 by Big Tiger
After an hour and only one digit, I'll have to call this one out of my league and hope someone on YouTube demonstrates it.
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Hey Big Tiger, thank you for giving my puzzle a go! Do you like to get a hint towards the break-in?
Kind regards, sujoyku
on 8. May 2026, 14:03 by Snookerfan
Very nice, 3.5 stars for me. Thanks!
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You are much welcome, Snookerfan, thank you for your comment! I am glad that you liked the puzzle.
Kind regards, sujoyku
| Difficulty: | ![]() |
| Rating: | 95 % |
| Solved: | 66 times |
| Observed: | 2 times |
| ID: | 000SPO |