Because there can never be enough Sudoku
How manydifferentversions of Sudoku do we really need? Maybe some of us are just a little slower at solving them, but apparently there is some gaping void of demand for brain-crunching number puzzles. If you've already devoured all available Sudoku like a ravenous beast and are desperate for any puzzle fix, one homebrew artist whipped up a fresh batch over the holidays just for you. Yeah, between pinched cheeks and presents, this guy programmed a (mostly) working homebrew Sudoku game. And here we thought we were doing well not to just pass out on the sofa on our off days. Maybe we need to aim a little higher. That t-shirt project sounds a little easier, though.
Forgive the digression. DSudoku, by Crescent Moon, the homebrew solution for your raging number puzzle needs.