I’m personally invested in a Kakuro variant I have built, and a print book[0] in the past few years, manually. I have recently augmented the website with Claude Code.[1]

So I am in a position to notice a design choice that I made appear in a somewhat substantially vibe-coded collection.

Though not a globally unique or revolutionary design element, the diagonal pinstripe background in this site’s Kakuro looks surprisingly similar to my own.

[0] https://a.co/d/88Y82x6

[1] https://www.kakurokokoro.com