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A nice tutorial

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keith

Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

Posted: Sun Feb 15, 2009 9:52 pm Post subject: A nice tutorial

This is today's Michael Mepham. #1316, February 15: Diabolical

Code:

+-------+-------+-------+
| . . . | . . 8 | 6 1 . |
| . . . | . 7 . | 5 . 8 |
| 7 . . | 2 . 6 | . . . |
+-------+-------+-------+
| . 9 . | 6 . 7 | 2 5 . |
| . . . | . . . | . . . |
| . 2 8 | 4 . . | . 3 . |
+-------+-------+-------+
| . . . | 8 . . | . . 4 |
| 2 . 4 | . 9 . | . . . |
| . 7 6 | 3 . . | . . . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

The ending comes down to a nice, relatively simple, example of a BUG+1, a skyscraper (which is multi-coloring) or simple coloring.

Keith

storm_norm

Joined: 18 Oct 2007
Posts: 1741

Posted: Mon Feb 16, 2009 7:22 am Post subject:

Quote:

and a w-wing {1,5}

tlanglet

Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

Posted: Mon Feb 16, 2009 2:12 pm Post subject:

A Remote Pair <15> also does the deed. Ted

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