Indextra (with ChinStrap)
(Published on 23. May 2025, 18:59 by sujoyku)
We like to thank mellowrobinson, NEWS, DubiousMobius, Sebond and Nell Gwyn for testing. As always, your feedback in the comments is much appreciated. We wish you joyful solving!
- Normal sudoku rules apply, i.e. each row, column, and 3x3 region has to contain the digits from 1 to 9 once each.
- Index Sum Lines: Dots separate turquoise lines into segments which are enumerated with white labels at the center of the line. For each line, the sums of these segments must form a valid Index Line, i.e. the sum value of the Nth segment along the line (starting from the segment with the diamond) indicates the position along the line where a sum value of N appears. For example, if the 3rd segment sums to 6, then the 6th segment must sum to 3.
Here you can solve the puzzle online:
Solution code: Row 9 from left to right (9 digits in total)
Comments
on 27. May 2025, 22:30 by Norkas
Tricky ruleset for me to wrap my head around initially and figure out the break in. But then a lot of fun logic unwound from there.
on 24. May 2025, 22:15 by MSDOS
Tricky break in, but really liked the new rule! A very fun challenge, thanks for setting!
**
Thank you for your comment, MSDOS! We are glad that you liked the ruleset and had a fun solve.
Kind regards, sujoyku
on 24. May 2025, 15:07 by NEWS
Sehr gut! Vielen dank für das Zusammenarbeits-Rätsel!
Herzliche Grüße. Ein Tester.
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Sehr gern geschehen, NEWS, vielen Dank für deinen Kommentar! Es freut uns, dass Dir das Rätsel gut gefallen hat. Nochmals vielen Dank fürs Testen!
Herzliche Grüße, sujoyku
on 24. May 2025, 14:19 by wuc
Had a very joyful time battling these rules. Much twisted thinking required. 4* to me. Looking forward to more of these thx a lot.
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Thank you for your comment, wuc! It is great to hear you had a joyful solve. We had this at 3 stars, but it is good to get more feedback on difficulty. Thank you for sharing your perspective!
Kind regards, sujoyku
on 24. May 2025, 14:12 by Franjo
Es dauerte eine Weile, bis ich den Einstieg fand, obwohl eigentlich klar war, wo ich suchen musste. Was für ein schönes Versteck! Tolle Idee, perfekt präsentiert. Habt vielen Dank dafür, alle beide.
**
Sehr gern geschehen, Franjo, vielen Dank für deinen Kommentar! Wir freuen uns, dass es Dir gefallen hat.
Herzliche Grüße, sujoyku
on 24. May 2025, 12:58 by Exigus
Very enjoyable. After readjusting how to think about the index lines it was pretty smooth. Thanks!
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You are much welcome, Exigus, thank you for commenting! We are glad that you enjoyed the solve.
Kind regards, sujoyku
on 24. May 2025, 12:15 by Snookerfan
Very nice puzzle and ruleset with a challenging solve! Thank you
**
You are much welcome, Snookerfan, thank you for your comment! We are glad you liked this ruleset.
Kind regards, sujoyku
on 23. May 2025, 20:59 by marcmees
Interesting solve for this newly introduced type of line`.Thanks
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You are much welcome, marcmees, thank you for your comment! We are glad that you liked the puzzle.
Kind regards, sujoyku
on 23. May 2025, 20:22 by ChinStrap
Always a pleasure to work with you :)
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Thank you, ChinStrap! I can only reply in kind. I absolutely love setting puzzles with you. Many thanks for this fun collab!
on 23. May 2025, 19:34 by MattYDdraig
Very cool puzzle. I think this was my first with this constraint and it made for some very interesting and satisfying logic.
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Thank you for your comment, MattYDdraig! We are glad that you enjoyed it. This is the first time we used this ruleset. And since we don't know of prior examples, it might be the first one overall. :)
Kind regards, sujoyku
