First 12 Clue Sudoku-X

Welcome to the world of the unknown. Each day you need to solve <a href="http://www.sudocue.net/xfile.php">two mysteries</a>.<br>Take the X-R-Size or solve the X-Treme problem. Stuck? Found a nice solution? Tell us about it.
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Ruud
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Joined: Fri Dec 30, 2005 10:21 pm

First 12 Clue Sudoku-X

Post by Ruud »

The minimum number of clues for a Sudoku-X has been 13 for the last two years. This weekend, I started a search for more 13's and possibly a 12.

Here's a 12 I found this morning. :D

Image

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I will start a new page on the main site, where I will explain my search techniques and post a list of additional 12-clue Sudoku-X puzzles I found later today.

Ruud
“If the human brain were so simple that we could understand it, we would be so simple that we couldn't.” - Emerson M Pugh
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