The combination of overlapping Killer and Arrow clues lends itself to some interesting arithmetic-based logic that isn't to everyone's taste but can be quite elegant. This puzzle was written during a period when I was struggling for ideas and decided to write some puzzles using other authors' "signature" variants, with this particular combination being a favourite of Leyrann.
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Rules
Place a number from 1 to 9 into each empty cell so that every row, column and bold-outlined region contains every number exactly once.
The numbers placed in each marked cage must be distinct and sum to the total given in the corner of the cage. The number placed in a circled cell must be equal to the sum of the numbers on the adjoining arrow.
Difficulty: 6/10
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