Ish-doku
(Published on 24. October 2025, 17:48 by ChinStrap)
Originally had a conversation about the basic idea here with ThePedallingPianist, but didn't do anything with it until I tried his version of the concept. Thanks to all the testers!
- Normal 9x9 latin square rules apply. Place the digits 1-9 once in each row and column without repeats.
Embedded Squishdoku:
- The upper left 7x7 of the grid is a squishdoku, consisting of 9 3x3 boxes, with boxes overlapping at the dotted lines. Digits must not repeat in a box.
Renban Lines:
- Solid pink lines form a consecutive set of digits without repeats in any order.
German Whisper Lines:
- Adjacent digits on the hollow green lines must differ by at least 5.
XV:
- Vs separate digits that sum to 5.
- Xs separate digits that sum to 10.
All feedback (positive or critical) appreciated!
Solution code: Row 8, left to right (9 digits)
Comments
on 29. October 2025, 16:02 by Nebuzaradan
Very cool tutorial on squishdoku properties masquerading as a Latin square puzzle
on 28. October 2025, 05:27 by Angara
Genius
on 25. October 2025, 19:42 by TJ
Wow thanks, some very unexpected logic going on between box 5 and the outside 2 rows! Took some time to figure out, but then it was a smooth solve
on 25. October 2025, 13:59 by Exigus
I loved that. Excellent construction. Thanks!
on 24. October 2025, 19:41 by bansalsaab
Brilliant puzzle.
