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Rules of 'External Sudoku'

Place numbers in the grid such that every row, column and 3x3 box contain the numbers 1 to 9. Fill in the shaded square of seven cells per side with numbers 1 to 7 such that no two adjacent cells contain consecutive numbers.



1 comment:

Rohan Rao said...

This is one of the best sudoku variations I've come across. Its soo simple yet great!