Friday 6 November 2015

Friday Puzzles #285

In celebration of George Boole's 200th birthday, and Bram de Laat's excellent Clone Or Extra Region Sudoku, I give you Clone And Extra Region Sudoku.  Enjoy!

Rules: the two shaded regions contain each of the numbers 1-9 exactly once.  Moreover, the same numbers go in cells with the same relative position in the two regions.
    #325 Extra Region And Clone Sudoku – rated hard
All puzzles © Tom Collyer 2009-15.

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