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Clement
Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania
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 Posted: Sun Sep 29, 2013 10:08 pm Post subject: Sep 30 VH |
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| Code: |
+-------+-------------+------------+
| 7 9 5 | 46 3 2 | 146 8 146 |
| 2 6 1 | 49 5 8 | 3 7 49 |
| 8 3 4 | 679 #67 1 | *69 5 2 |
+-------+-------------+------------+
| 9 1 3 | 67 8 467 | 2 46 5 |
| 6 2 7 | 5 49 3 | 8 1 49 |
| 4 5 8 | 2 1 69 | 7 69 3 |
+-------+-------------+------------+
| 1 7 2 | 3 469 469 | 5 69 8 |
| 3 4 6 | 8 *79 5 | 1-9 2 179 |
| 5 8 9 | 1 2 47 | 46 3 467 |
+-------+-------------+------------+
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XY-Wing 67-9 pivoted in r3c5; r8c7<>9; stte. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Mon Sep 30, 2013 12:15 am Post subject: |
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| Or 79-4 pivoted in r8c5. |
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kuskey
Joined: 10 Dec 2008
Posts: 141
Location: Pembroke, NH
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| Posted: Mon Sep 30, 2013 5:09 am Post subject: Sep 30 VH |
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| or 469 or 169 xy-wings |
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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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| Posted: Mon Sep 30, 2013 9:35 am Post subject: Sep 30 VH |
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After my basics(!)
| Code: |
+-------+-------------+------------+
| 7 9 5 | 46 3 2 | 146 8 16 |
| 2 6 1 | 49 5 8 | 3 7 49 |
| 8 3 4 | 679 67 1 | 69 5 2 |
+-------+-------------+------------+
| 9 1 3 | 467 8 467 | 2 46 5 |
| 6 2 7 | 5 49 3 | 8 1 49 |
| 4 5 8 | 2 1 69 | 7 69 3 |
+-------+-------------+------------+
| 1 7 2 | 3 469 469 | 5 469 8 |
| 3 4 6 | 8 79 5 | 19 2 17 |
| 5 8 9 | 1 2 467 | 46 3 67 |
+-------+-------------+------------+
|
Play this puzzle online at the Daily Sudoku site
I may have gone wrong here but surely Clement's 'after basics' comes out
with simple basics after the naked pair 69 in column 8 makes r4c8 a 4?
In fact I couldn't get the 4 out of r7c8 as above.
But Clement's solution works as does a 146 XYZ after my basics (having
also removed the 4 from r1c9) and a W wing on 46s- but have I gone
wrong somewhere? And it seemed such a simple puzzle today.....
Hugh |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Mon Sep 30, 2013 1:07 pm Post subject: Re: Sep 30 VH |
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| hughwill wrote: | After my basics(!)
| Code: |
+-------+-------------+------------+
| 7 9 5 | 46 3 2 | 146 8 16 |
| 2 6 1 | 49 5 8 | 3 7 49 |
| 8 3 4 | 679 67 1 | 69 5 2 |
+-------+-------------+------------+
| 9 1 3 | 467 8 467 | 2 46 5 |
| 6 2 7 | 5 49 3 | 8 1 49 |
| 4 5 8 | 2 1 69 | 7 69 3 |
+-------+-------------+------------+
| 1 7 2 | 3 469 469 | 5 469 8 |
| 3 4 6 | 8 79 5 | 19 2 17 |
| 5 8 9 | 1 2 467 | 46 3 67 |
+-------+-------------+------------+
|
Play this puzzle online at the Daily Sudoku site
I may have gone wrong here but surely Clement's 'after basics' comes out
with simple basics after the naked pair 69 in column 8 makes r4c8 a 4?
In fact I couldn't get the 4 out of r7c8 as above.
But Clement's solution works as does a 146 XYZ after my basics (having
also removed the 4 from r1c9) and a W wing on 46s- but have I gone
wrong somewhere? And it seemed such a simple puzzle today.....
Hugh |
I have 49 in r7c8. The 6 comes out because of the Locked Candidates in box 6. It looks like Clement's grid might have some sort of mechanical error. |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Mon Sep 30, 2013 5:01 pm Post subject: |
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This is the after basics grid:
| Code: | +-------------+-------------+-------------+
| 7 9 5 | 46 3 2 |N146 8 E16 |
| 2 6 1 | 49 5 8 | 3 7 H49 |
| 8 3 4 |679 J67 1 |F69 5 2 |
+-------------+-------------+-------------+
| 9 1 3 | 67 8 467 | 2 46 5 |
| 6 2 7 | 5 L49 3 | 8 1 49 |
| 4 5 8 | 2 1 A69 | 7 B69 3 |
+-------------+-------------+-------------+
| 1 7 2 | 3 469 D469 | 5 C49 8 |
| 3 4 6 | 8 K79 5 |G19 2 17 |
| 5 8 9 | 1 2 M47 |I46 3 67 |
+-------------+-------------+-------------+ |
ABCD is an X-wing on 9.
XY-wings:
EFG -169
HFI -469
FJK 67-9
LKM -479
FIC 46-9
XYZ-wing ENI 14-6
I am too lazy to look for W- and M-wings.
Keith  |
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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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| Posted: Tue Oct 01, 2013 10:05 pm Post subject: Re: Sep 30 VH |
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Thanks Keith- so what you're saying if I've got this right is that the
puzzle can be solved..........
(Thanks also to Marty - BTW has any VH puzzle beaten this one for the
number of solutions?)
Hugh |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Wed Oct 02, 2013 2:10 am Post subject: |
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Hugh,
Yes. If you find all the wings you are probably on the correct path!
I do not recall ever seeing a puzzle with so many wings coexisting.
Keith |
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