Insane Killer Sudoku

Ok, a few regular readers have requested an INSANE Killer Sudoku puzzle so I had to respond. This puzzle should be very difficult to solve. In fact, it might require some trial&error attempts …

KILLER Samurai Sudoku

Sudoku Insane & Inhuman: Killer Sudoku Puzzles for Advanced & Experienced Players Extremely Hard to Hardest for Experts (Sudoku Books for Adults) - Press, Puzzle: 9781704026039 - AbeBooks

Sudoku Insane & Inhuman: Killer Sudoku Puzzles for Advanced & Experienced Players Extremely Hard to Hardest for Experts by Puzzle Press, Paperback

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