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Earl
Joined: 30 May 2007 Posts: 677 Location: Victoria, KS
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Posted: Sat Nov 15, 2008 4:23 am Post subject: Nov 15 VH |
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Easy as 1-2-3.
Earl |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Sat Nov 15, 2008 4:32 am Post subject: |
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Yes, this was an easy VH. I found four different ways to solve it in one step.
Quote: | Type 1 UR47, w-wing23, xy-wing246 and xy-wing123.
| Ted |
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Clement
Joined: 24 Apr 2006 Posts: 1111 Location: Dar es Salaam Tanzania
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Posted: Sat Nov 15, 2008 6:45 am Post subject: Daily Sudoku: Sat 15-Nov-2008 VH |
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UR (4,7)r89c48. We can remove 6 in r2c8 to avoid the DP in BOX 8 and 9. In this case 6 must be in r1c9 which solves the puzzle. |
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storm_norm
Joined: 18 Oct 2007 Posts: 1741
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Posted: Sat Nov 15, 2008 7:32 am Post subject: |
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yep, I found out how 1,2,3 easy it was was. |
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cgordon
Joined: 04 May 2007 Posts: 769 Location: ontario, canada
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Posted: Sat Nov 15, 2008 4:22 pm Post subject: |
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Very prosaic. |
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crunched
Joined: 05 Feb 2008 Posts: 168
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Posted: Sat Nov 15, 2008 4:33 pm Post subject: |
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Here is the puzzle after removing most/all basics.
From here, you can see the UR (which I did not see when I solved this), and the 1-2-3 xy wing.
Code: |
+-------------+-------------+------------+
| 3 46 2 | 5 7 9 | 8 1 46 |
| 5 468 1 | 23 468 368 | 9 246 7 |
| 68 9 7 | 12 468 168 | 24 5 3 |
+-------------+-------------+------------+
| 9 238 38 | 6 5 7 | 1 248 24 |
| 7 5 4 | 8 1 2 | 6 3 9 |
| 128 128 6 | 9 3 4 | 27 278 5 |
+-------------+-------------+------------+
| 4 7 5 | 13 68 1368 | 23 9 26 |
| 268 2368 38 | 47 9 36 | 5 47 1 |
| 16 136 9 | 47 2 356 | 347 467 8 |
+-------------+-------------+------------+
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Play this puzzle online at the Daily Sudoku site |
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