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Nataraj, November 11 Advanced

 
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sun Dec 05, 2010 11:03 pm    Post subject: Nataraj, November 11 Advanced Reply with quote
Code:

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

Play this puzzle online at the Daily Sudoku site

I did this multiple times due to errors and distrust of my solutions, but this my final answer:

Quote:
W-Wing (34), boxes 28; r8c6<>4
M-Wing (38), boxes 78; flightless with transport; r5c1<>8
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Mon Dec 06, 2010 2:06 am    Post subject: Reply with quote
Code:
+-------------+---------------------+-----------------+
| 4    6  9   | 23      8     5     | 7     23    1   |
| 5    3  7   | (24)    1     6     | 4(2)  9     8   |
| 2    8  1   | 9       7     34    | 34    5     6   |
+-------------+---------------------+-----------------+
| 389  1  348 | 5       2349  7     | 6(2)  268   349 |
| 389  2  6   | 3-4(8)  349   1     | 5     7     349 |
| 7    5  348 | 6       2349  34(8) | 1     (28)  349 |
+-------------+---------------------+-----------------+
| 1    7  38  | 38      6     2     | 9     4     5   |
| 368  9  5   | 7       34    348   | 36    1     2   |
| 36   4  2   | 1       5     9     | 8     36    7   |
+-------------+---------------------+-----------------+
(4=2)r2c4 - (2)r2c7 = (2)r4c7 - (2=8)r6c8 - (8)r6c6 = (8)r5c4; r5c4 <> 4
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
PostPosted: Mon Dec 06, 2010 6:26 am    Post subject: Reply with quote
The humble skyscraper ( 8 ), rows 5 and 7, doesn't look like much.
But after it removes 8 from r8c1, there is substantial collateral damage.

___________________

BTW, if you are looking for more challenging puzzles, check out the earliest dates in the Sudok-o-Rama. I changed the grading scheme around Sept. 18 or 19, and before that date you might find all sorts of weird puzzles. Some of them just long (several VH+ steps), some with "useless" wings that can be transported, and some BUG+. Hm, maybe I'll grow some more of these and put them into a Christmas Special ...

In November, you already did 18 and 26. Far as I remember, the Nov. 7 was also a rather nice one, but not sure.
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