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Rules of 'All Odd / All Even Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. In each 3x3 box, the shaded cells contain either all odd numbers or all even numbers.

EXAMPLE:


UNIQUE SOLUTION:

2 comments:

Rohan Rao said...

This is a nice extended variation of the odd-even sudoku. Its a simple variation.

KARAN said...

Can you please post a technique by which this type can be attacked? I took 22 minutes and could not complete the thing and even then parts of it were erroneous.