Sudoku Players' Forum (clone)

Right, i saw this variant first for the first time tonight and i absolutely love it does anyone know of any sites with more on, cheers!

This can be considered a subset of sukaku.
Since in any outside sudoku, we could provide each cell with all nine clues, and after that remove the clues based on the outside digits.

I can kinda see where you're going but there are still a lot of differences between the two.