Re: Difficult Killer Sudoku
Yeah, damn tough puzzle, congratulations.
First I thought it is (almost) unsolvable like the hardest sudokus, or it has more solutions, but then I spotted the right places. Maybe I proceeded quite slowly because of editations in the Painting editor, however I would rate this one about 6.2–6.3.
If anybody curious, I can share my steps.
And now I am going to search a machete instead of a dagger.