Kropki pairs: Cells separated by a white dot must contain consecutive digits. Cells separated by a black dot must contain digits in a ratio of 2:1. Not all dots are given.
XV pairs: Cells separated by a V must contain digits summing to 5. Cells separated by an X must contain digits summing to 10. Not all Xs and Vs are given.
f-puzzles: https://f-puzzles.com/?id=yjqxck32
CTC: https://tinyurl.com/yetme47f
Solution code: Row 2 + Column 1 (18 digits)
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