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Jan 30 VH

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Mon Jan 30, 2017 2:40 pm    Post subject: Jan 30 VH Reply with quote
xyz wing @ R9C6; R7C6 <>6 must be 2

Also BUG+1, R9C6 = 6

Early Earl

PS Long time no VH
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George Woods



Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK
PostPosted: Mon Jan 30, 2017 3:15 pm    Post subject: but not a very hard very hard Reply with quote
I think I did this in less than 1/2 hour far quicker tham some of the Hards
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Jan 30, 2017 6:36 pm    Post subject: Reply with quote
Code:

+----------+-----------+--------+
| 7 9   18 | 3   2 68  | 4 16 5 |
| 6 5   4  | 7   1 9   | 2 3  8 |
| 3 18  2  | 68  4 5   | 9 16 7 |
+----------+-----------+--------+
| 2 3   5  | 9   8 1   | 7 4  6 |
| 8 7   6  | 24  3 24  | 1 5  9 |
| 1 4   9  | 5   6 7   | 8 2  3 |
+----------+-----------+--------+
| 9 26  3  | 1   7 26  | 5 8  4 |
| 4 28  7  | 28  5 3   | 6 9  1 |
| 5 168 18 | 468 9 468 | 3 7  2 |
+----------+-----------+--------+

[url=http://www.dailysudoku.com/sudoku
/play.shtml?p=7:9:18:3:2:68:4:16:5:6:5:4:7:1:9:2:3:8:3:18:2:68:4:5:9:16:7:2:3:5:9:8:1:7:4:6:8:7:6:24:3:24:1:5:9:1:4:9:5:6:7:8:2:3:9:26:3:1:7:26:5:8:4:4:28:7:28:5:3:6:9:1:5:168:18:468:9:468:3:7:2:]Play this puzzle online[/url] at the Daily Sudoku site

XY-Wing(28-6) pivot r8c4=> -6r1c6,r9c4

Earl, I can't see an XYZ-Wing. It would need a 46 cell, which isn't there.
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Tue Jan 31, 2017 1:51 am    Post subject: Jan 30 VH Reply with quote
Marty,

The X-wing 8 at R1,9 - C6,9 eliminates the 8 in R9C2 and R9C4 opening the 468 xyz wing pivoted at R9C6.

Early Earl
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