Difference between revisions of "Butterfly"
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Jump to navigationJump to search (Created page with "'''Butterfly''' is a dense gattai with only 4 overlapping Sudoku grids, with 12 overlapping boxes, 4 of them overlap 4 times! Only 4 boxes do not overlap. It...") |
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[[Image:butterfly-example.png]] | [[Image:butterfly-example.png]] | ||
[[Category:Gattai Variants]] | |||
[[Category:Sudoku Variants]] | |||
