Quattuor (Quadruples, Quad Sums)
(Eingestellt am 24. Februar 2026, 15:30 Uhr von Crusader175)
Normal sudoku rules apply.
Quadruples: A digit shown in a circle must appear at least once in the four surrounding cells.
Quad Sums: Four digits around a circle may repeat, and one digit must equal the sum of the other three digits.
Puzzle Link: SudokuPad
My youtube channel on solving sudoku: Crusader Puzzle
Lösungscode: Row 9
Kommentare
am 25. Februar 2026, 05:13 Uhr von ketchup_monster
beautifully smooth
am 24. Februar 2026, 22:02 Uhr von Tobias
Nice puzzle. Updated rule set is clear to me. Rating should be 1* imo
am 24. Februar 2026, 20:36 Uhr von Crusader175
Update the rules. Hopefully it's clear now?
am 24. Februar 2026, 20:26 Uhr von Franjo
Thank you very much for creating and sharing this beautiful puzzle.
am 24. Februar 2026, 20:07 Uhr von VitP
solves very easily.
level 1 ?, maybe level 2.
IMPORTANT:
the second rule definitely needs to be rewritten as "the 4 cells surrounding each circle contain a set of digits (which may include repeats), with 3 of the digits adding to the fourth" or something like that
am 24. Februar 2026, 19:52 Uhr von jhow25
the quad sum rules are very unclear. "At a corner," there are no circles at any corners. Are you saying every circle is also a quad sum?
am 24. Februar 2026, 17:04 Uhr von Mad-Tyas
Very nice and smooth!
am 24. Februar 2026, 15:39 Uhr von wisty
Amazing!!! Such an elegant solve from such an elegant looking grid. Thank you so much for sharing!
