Cross sums
Row and column sums, without repeated digits.
Logic / 3 modes
Cross Sums
Row and column sums, without repeated digits.
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One game. Several approaches.
Diagonal sums
Both diagonal sums are additional constraints.
Shaped sums
Fill white cells using the selected number range. → and ↓ clues sum continuous runs, which contain no repeats. Walls split runs. Bold digits are fixed. An independent solver verifies uniqueness.