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Free Press, January 30, 2009

 
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sat Jan 31, 2009 2:55 pm    Post subject: Free Press, January 30, 2009 Reply with quote
This is about a Very Hard.
Code:
Puzzle: FP013009
+-------+-------+-------+
| . . . | . 3 6 | . . 5 |
| . 7 . | 1 . 8 | . 9 . |
| 6 . . | . . . | . . . |
+-------+-------+-------+
| . . 4 | 6 . . | 9 . . |
| 9 8 . | . . . | . 2 6 |
| . . 6 | . . 9 | 5 . . |
+-------+-------+-------+
| . . 3 | . . . | . . 8 |
| . 6 . | 7 . 2 | . 3 . |
| 2 . . | 3 1 . | . . . |
+-------+-------+-------+
Keith
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Sat Jan 31, 2009 5:23 pm    Post subject: Free Press Reply with quote
VH of the two-step variety (xy-wing and skyscraper).
I did not see a single-step solution.

Earl
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sun Feb 01, 2009 1:47 am    Post subject: Reply with quote
Probably the same two stepper: xy <235> and coloring on <4> which removed half of the <4s>.

Ted
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sun Feb 01, 2009 4:48 pm    Post subject: Reply with quote
After basics:
Code:
+-------------+-------------+-------------+
| 8   49  129 | 24  3   6   | 147 147 5   |
|345b 7  2-5  | 1   45a 8   | 6   9   23  |
| 6   35c 125 | 245 9   7   | 8   14  23  |
+-------------+-------------+-------------+
| 15  25  4   | 6   27  3   | 9   8   17  |
| 9   8   7   | 45  45  1   | 3   2   6   |
| 13  23  6   | 8   27  9   | 5   147 147 |
+-------------+-------------+-------------+
| 7   1   3   | 9   6   4   | 2   5   8   |
| 45  6   59  | 7   8   2   | 14  3   149 |
| 2   49  8   | 3   1   5   | 47  6   479 |
+-------------+-------------+-------------+
The xyz-wing abc reduces it to a BUG+1, or a skyscraper on <4>.

Keith
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