RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 box.
Rules: Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 outlined box. Clue...
8:34, I found multiple unique rectangles. But, the sudoku was not ready to budge out even at the very end. Btw, R u posting sudokus from ur 4th book?
ReplyDelete8.34 is good timing. I would appreciate if you solved the classics without using unique rectangles. No, they are not from the 4th book.
Delete5:44 seconds on andoku3 with computed candidates. Btw I am a new follower of your blog. Thanks for these puzzles!
ReplyDelete5.44 is an amazingly fast time on this. Welcome to my blog. Hope you will like the puzzles from my blog.
Delete18:38. One easy elimination evaded my scanning for 8-9 minutes. After that, the search for chains was not an easy one.
ReplyDeleteIt was a difficult sudoku. The chain was not easy to spot.
Delete8:23, tough one
ReplyDeleteAmazing timing on this.
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