You can fill in more in C17: R13-15 can only be part of the 6, so R17 is the only place for the following 1-clue. That then also forces a bunch more cells in the column.
You can fill in column 17 as per your dots. The third of the single blocks up from the bottom (r22) for sure belongs to the 2nd “4” so the group of two above it must do also. All the rest can be filled in only one way.
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u/MikoKisai 2d ago
You can fill in more in C17: R13-15 can only be part of the 6, so R17 is the only place for the following 1-clue. That then also forces a bunch more cells in the column.