Merry Christmas to all who celebrate this day! As a small gift for you, I’ve prepared an odd-even sudoku variation puzzle. It’s not the first odd even puzzle I ever posted, but it is the first plain odd even sudoku. And to spice things up a little bit, this is a very difficult odd/even sudoku! [...]
Puzzle book for 2013!
10% discount in UK!
but wait! ALSO 10% discount on Amazon.com!
Sample Puzzles!
FREE Puzzles!
FREE Sudoku variants!
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