too Java

I believe all 3 kata's are unique enough.

This one does ring a bell of being a duplicate of This one and this (might be more)

TBH: those two katas are kind of duplicate with each other OwO

Feel free to close this if anyone thinks otherwise ~~

Javascript Translation

approved

Kotlin translation

approved by

manual notification, see above.

Python translation

approved

C translation (with shuffled random tests).

Thank you. I have replaced random tests with full test suite, using your example

Thank you for revision. I have removed redundant title, changed input arg name to cellIndex and splitted the text into code/no-code parts.

• cellIndex
• "Find the index of Sudoku cell" -> this title is vague, which index? It's the index of the "box" or "bigger square" as the author calls it

I'd sugest:

• Some better name for input arg than i.
• Split one large code block into smaller parts with drawings, and regular non-code paragraphs between them. Large code block breaks layout on my screen.
• Remove the title from the description. I think it's not necessary and redundant (beause there's already the title above the description).