Killer by Godefridus
2023-03-19T07:00:00.0000000Z
2023-03-19T07:00:00.0000000Z
Guardian/Observer
https://guardian.pressreader.com/article/282441353326481
The Observer
Normal Sudoku rules apply, except the numbers in the cells contained within grey lines add up to the figures in the corner. No number can be repeated within each shape formed by the grey lines.
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