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ravel
Joined: 21 Apr 2006
Posts: 536
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 Posted: Sun Dec 30, 2007 5:04 pm Post subject: Fish&wings |
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Nice puzzle by TTHsieh
| Code: | . 1 . | . . . | . 2 .
3 4 . | . . . | . 5 6
. . . | 2 . 6 | . . .
- - - + - - - + - - -
. . 7 | 6 2 8 | 5 . .
. . . | 5 . 7 | . . .
. . 6 | 9 3 4 | 2 . .
- - - + - - - + - - -
. . . | 4 . 5 | . . .
5 6 . | . . . | . 8 4
. 7 . | . . . | . 1 . |
Many ways to solve it. |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sun Dec 30, 2007 9:17 pm Post subject: |
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| Code: | 6 1 589 | 38 45 39 | 489 2 7
3 4 2 | 7 89 1 | 89 5 6
7 89 589 | 2 45 6 | 1 349 389
------------------------+-------------------------+------------------
149 39 7 | 6 2 8 | 5 349 139
489 2 389 | 5 1 7 | 34689 3469 389
18 5 6 | 9 3 4 | 2 7 18
------------------------+-------------------------+------------------
89 389 1 | 4 679 5 | 3679 369 2
5 6 39 | 1 79 2 | 379 8 4
2 7 4 | 38 689 39 | 69 1 5 |
Last edited by storm_norm on Sun Dec 30, 2007 11:50 pm; edited 1 time in total |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sun Dec 30, 2007 10:01 pm Post subject: |
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finned x-wing on 6's, opens up an x-wing on the 6's.
anyone else know if this is also a hidden unique rectangle??
anyways, that leads to this:
| Code: | 6 1 589 | 38 45 39 | 489 2 7
3 4 2 | 7 89 1 | 89 5 6
7 89 589 | 2 45 6 | 1 349 389
------------------------+-------------------------+------------------
149 39 7 | 6 2 8 | 5 349 139
489 2 389 | 5 1 7 | 3489 6 389
18 5 6 | 9 3 4 | 2 7 18
------------------------+-------------------------+------------------
89 389 1 | 4 67 5 | 67 39 2
5 6 39 | 1 79 2 | 379 8 4
2 7 4 | 38 689 39 | 69 1 5 |
x-wing on 3's
then xy-chain
69-89-89-79-67 takes out 6 in r7c7
that is where i am now
Last edited by storm_norm on Sun Dec 30, 2007 11:40 pm; edited 2 times in total |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Dec 30, 2007 10:18 pm Post subject: |
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| Your grid has a naked triple/hidden single in column 9. |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sun Dec 30, 2007 10:21 pm Post subject: |
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| finished with a couple xy-wings and xy-chains |
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ravel
Joined: 21 Apr 2006
Posts: 536
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| Posted: Sun Dec 30, 2007 11:15 pm Post subject: |
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storm_norm,
there is a typo in your grid. r4c9 should not read 389, but 139 (there is an 8 in row 4).
Then there is an x-wing, followed by an xyz-wing -
or a jellyfish in another number.
You can finish with an xy- or w-wing. |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sun Dec 30, 2007 11:39 pm Post subject: |
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| sorry, I see it |
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alanr555
Joined: 01 Aug 2005
Posts: 198
Location: Bideford Devon EX39
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| Posted: Mon Dec 31, 2007 4:02 am Post subject: |
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| storm_norm wrote: |
x-wing on 3's
then xy-chain
69-89-89-79-67 takes out 6 in r7c7
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Using M/Pairs techniques, I have reached the position before
that quoted.
How does the xy-chain work in this case?
I have not come across it (by that term anyway) previously.
I am hoping that this puzzle will be a good exemplar of some
of the techniques with which I am unfamiliar. |
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alanr555
Joined: 01 Aug 2005
Posts: 198
Location: Bideford Devon EX39
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| Posted: Mon Dec 31, 2007 4:08 am Post subject: |
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| Marty R. wrote: |
Your grid has a naked triple/hidden single in column 9.
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It looks like a quartet to me with 389/139/389/18.
How does that become a triple+single? |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Mon Dec 31, 2007 4:49 am Post subject: |
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This is where I run out of the basics:
| Code: | +-------------------+-------------------+-------------------+
| 6 1 589 | 38 45 39 | 489 2 7 |
| 3 4 2 | 7 89 1 | 89 5 6 |
| 7 89 589 | 2 45 6 | 1 349 389 |
+-------------------+-------------------+-------------------+
| 149 39 7 | 6 2 8 | 5 349 139 |
| 489 2 389 | 5 1 7 | 34689 3469 389 |
| 18 5 6 | 9 3 4 | 2 7 18 |
+-------------------+-------------------+-------------------+
| 89 389 1 | 4 679 5 | 367 369 2 |
| 5 6 39 | 1 79 2 | 379 8 4 |
| 2 7 4 | 38 689 39 | 69 1 5 |
+-------------------+-------------------+-------------------+
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I see a jellyfish, but not any finned creature.
Keith |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Mon Dec 31, 2007 5:01 am Post subject: |
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| alanr555 wrote: | | Marty R. wrote: |
Your grid has a naked triple/hidden single in column 9.
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It looks like a quartet to me with 389/139/389/18.
How does that become a triple+single? |
At the time I posted, there was a typo which I didn't notice. Ravel noted it in his post. |
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ravel
Joined: 21 Apr 2006
Posts: 536
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| Posted: Mon Dec 31, 2007 11:05 am Post subject: |
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From Keith's grid you can use the jellyfish, then an xy-wing.
Or a kite, some singles, x-wing, xyz-wing. Then there is a swordfish.
Instead of the swordfish (plus xy-wing) you can take a w-wing to solve it. |
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