Observer killer sudoku

Sat 12 Oct 2024 19.01 EDTLast modified on Sat 12 Oct 2024 19.03 EDTShare Click here to access the print version.
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 grey lines.
Buy next week’s Observer Digital Edition to see the completed puzzle.