Weekend Special: Butterfly Samurai Killer Sudoku with diagonally adjacent cells!
This puzzle consists of 20 (twenty) 9×9 Sudoku sub-puzzles. There are 5 groups of 4 puzzles. Each group of 4 is arranged Butterfly-style, and those 5 groups are arranged Samurai-style.
Please make sure you understand how the puzzles are arranged before attempting to solve the puzzle.
Also, be careful when solving this one – with diagonally adjacent cells it’s sometimes easy to miscount the number of cells in a cage and if you do that, you get the cage-sum combinations completely wrong!
Enjoy!
Butterfly Killer Samurai Sudoku.
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