Technically the same issue, but novel rulesets make sudoku a lot more fun. Fog of war is my favourite.
Here’s one for programmers sudokupad.app/dnz6khw1tf
sudokupad.app
Base 2 by Hanks (Sven's SudokuPad v0.611.0)
CEO of naming things. React and GraphQL since before they were CV fodder. “an encyclopaedic knowledge of web development". Manifesting code at Watershed.