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First INSANE September 27 anniversary

by | September 26, 2006

Well, folks, one year has passed since I posted my first INSANE Killer Sudoku puzzle. Although it wasn’t “perfect” (it contains singleton cages), most probably this site wouldn’t become popular if it hadn’t been for that puzzle. It was by far the most difficult Killer Sudoku puzzle that the world had seen at that time and it still ranks pretty high I would say. 🙂

To mark this anniversary, I’d like to post another “unsolvable” puzzle. Actually, according to my ranking formula, it’s the most difficult one that I currently have in my archive. This one is rated 7425379, while Sep 27 2005 puzzle is now rated 6245754 (ratings assigned by PS v0.5).

Warning: This puzzle almost certainly requires trial and error attempts to solve. You might try with the Nobbes’ theory ((c) mikejapan), but don’t be surprised if you can’t place a single number. Although I half-expect that Shai or udosuk, Frank, nd, jc, Ruud (or someone else?) will come back in a few hours and post a 3-step walkthrough. 🙂

Killer Sudoku for September 27, 2006 – INSANE

Here is the content of the data file if you want to import it into PS:
3×3::k:2825:3329:4099:4099:4099:6679:1807:4112:6161:2825:3329:4885:6679:6679:6679:1807:4112:6161:1299:1299:4885:4885:4885:6679:4642:4112:6161:2596:3101:3101:2334:4904:4402:4642:4642:6161:2596:2596:3101:2334:4904:4402:3123:3372:3372:6207:5422:5422:2334:4904:4402:3123:3123:3372:6207:4160:5422:6457:4923:4923:4923:1853:1853:6207:4160:1857:6457:6457:6457:4923:3663:2631:6207:4160:1857:6457:3917:3917:3917:3663:2631:

Have fun!


First INSANE September 27 anniversary.

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