Kakuro by Dan Katz
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Theme: Squaring the Circle
Author/Opus: This is the 17th puzzle from guest contributor Dan Katz.
Rules: Standard Kakuro Rules.
Difficulty: 3 stars
Time Standards (highlight to view): Grandmaster = 4:00, Master = 5:45, Expert = 11:30
Solution: PDF; a solution video is also available here.
Note: Follow this link for classic Kakuro and this link for Kakuro variations. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli and in The Art of Puzzles 2.
7mins, nice trick to it
11:26. I struggled on this but greatly enjoyed the number interactions very much.