Tag Archives: Killer Butterfly

Butterfly Sudoku Killer X

Here is this weekend’s special – a unique and never-seen-before Killer Butterfly X There are 4 “classic” 9×9 Sudoku puzzles inside this one. They all overlap and they all must be solved according to the rules of Sudoku and Killer Sudoku. You can use Twin Nonets solving technique for this one! However, in contrast with […]

Posted in Free sample puzzles, Killer Sudoku, Sudoku Variants | Also tagged , , , , , , , , , , , , , , | 4 Responses

Killer Butterfly

I don’t know if there is a species that go under that name and if there are, my apologies to them. Another world premiere Sudoku variation puzzle – Butterfly Killer Sudoku. Thanks to one of our regular visitors udosuk for suggesting this concept – this should encourage you to suggest a layout for overlapping puzzles […]

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Posted in Free sample puzzles, Killer Sudoku, Sudoku Variants | Also tagged , , , , , , , , , , , , , , , | 4 Responses
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