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.
Renban: digits along a pink line form an unordered set of consecutive numbers.
Region sum lines: along a blue line, the sum of digits on each line segment is the same; segments are separated by region borders.
Kropki dots: digits separated by a white dot are consecutive; digits separated by a black dot have a 1:2 ratio; not all dots are necessarily given
Solution code: Column 5, top to bottom
on 21. July 2025, 09:07 by Crusader175
Cool puzzle!
Difficulty: | ![]() |
Rating: | 88 % |
Solved: | 17 times |
Observed: | 1 times |
ID: | 000O9M |
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