Cage Relations
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Apply classic sudoku rules.
Digits in cages may not be repeated. Each cage has a sum that can be derived by adding all the digits it contains. A diamond between two cages indicates that their sums have a difference (white diamond) or a ratio (black diamond) that is equal to the topmost (in case of a column) or leftmost (in case of a row) digit of the column or row in which the diamond is placed. All possible diamonds are given.
Sudokupad (no answer check)
Sudokupad (with answer check)
or
Penpa+.
Solution code: Row 9
on 3. March 2026, 08:10 by spiccrabbit
smooth and nice
I’ve never seen this rule before
on 27. February 2026, 12:17 by Franjo
Thank you very much for creating and sharing another approachable beauty.
on 27. February 2026, 10:49 by Piatato
Lovely!
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