Normal Quattroquadri rules apply. Place the digits 1 through 9 in each empty cell. Digits must not repeat within the same row, column, or box.
Region sum lines: along the blue line, the sum of digits on each line segment is the same; segments are separated by region borders.
German Whispers: adjacent digits along the green line differ by at least 5
Solution code: Column 2, top to bottom
on 26. July 2025, 01:20 by dzamie
Pretty fun! I kept mistaking the lines for each other way too easily, though...
on 22. July 2025, 00:08 by MathGuy_12
Lovely opening!
on 21. July 2025, 22:55 by VitP
F <= x <= F
on 21. July 2025, 22:17 by myShoggoth
Delightful puzzle!
on 21. July 2025, 16:59 by Snookerfan
Nice snack! Because of 5 minute solve time 1 star for difficulty I guess. Thank you
M-- I'd be happy if this was 1-2 stars (my puzzles rarely get there) but I thought some folk would get a little tripped up by the opening
Difficulty: | ![]() |
Rating: | 86 % |
Solved: | 33 times |
Observed: | 2 times |
ID: | 000OAW |
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