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wapati
Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
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 Posted: Mon Feb 16, 2009 2:21 pm Post subject: Swordfish |
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This one has a lot of available methods including a swordfish (and finned swordfish) that may be useful.
I wanted to find a nice short path but didn't, is there one?
| Code: | . . 3|. 7 .|1 . .
. . .|. . 2|. . 9
5 1 .|4 . 8|. 7 .
-----+-----+-----
. 3 .|. . .|. . 1
4 . .|. 1 .|. . 5
2 . .|. . .|. 3 .
-----+-----+-----
. 9 .|8 . 3|. 2 6
6 . .|9 . .|. . .
. . 2|. 6 .|4 . . |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Mon Feb 16, 2009 5:37 pm Post subject: Re: Swordfish |
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| wapati wrote: | This one has a lot of available methods including a swordfish (and finned swordfish) that may be useful.
I wanted to find a nice short path but didn't, is there one?
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It all depends upon what you consider to be short.
| Code: | r2 b1 Locked Candidate 1 <> 4 [r2c8]
c7b9 Locked Candidate 1 <> 5 [r2c7]
r1 b2 Locked Candidate 1 <> 6 [r1c8]
c49 X-Wing <> 7 [r6c267],[r9c2]
r35 Skyscraper <> 9 [r1c6],[r46c5]
XYZ-Wing [r5c2]/[r4c1]+[r5c8] <> 8 [r5c3]
r159 Swordfish (222) <> 8 [r268c2],[r4c8],[r6c9]
7-cell [XY-Chain] <> 4 [r4c5]
-4r7c5 5r7c5 7r7c7 8r9c9 4r1c9 8r1c8 6r5c8 4r4c8
r4 Naked Quad <> 5789 [r4c6]
c6b7 Empty Rectangle <> 7 [r5c3]
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Tue Feb 17, 2009 1:21 am Post subject: |
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wow, good puzzle
I was able to break it down to four chains
| Code: | .---------------------.---------------------.---------------------.
| 89 2 3 | 56 7 569 | 1 458 48 |
| 78 4678 4678 | 1 35 2 | 368 568 9 |
| 5 1 69 | 4 39 8 | 36 7 2 |
:---------------------+---------------------+---------------------:
| 789 3 56789 | 2 4589 45679 | 6789 468 1 |
| 4 678 6789 | 3 1 679 | 2 68 5 |
| 2 5678 1 | 567 4589 45679 | 6789 3 478 |
:---------------------+---------------------+---------------------:
| 1 9 457 | 8 45 3 | 57 2 6 |
| 6 4578 4578 | 9 2 457 | 578 1 3 |
| 3 578 2 | 57 6 1 | 4 9 78 |
'---------------------'---------------------'---------------------' |
1...(9)... r5c3 = r5c6 - r1c6 = r3c5; r3c3 <> 9
some singles...
this is a bruiser
2...(6=5)r1c4 - (5=7)r9c4 - (7)r9c9 - (7-4)r6c9 = (4-6)r4c8 = (6)r5c8 - (6)r5c2 = (6)r6c2; r6c4 <> 6
some singles..
this next chain makes an elimination in one cell and continues to make an elimination in another cell.
3...(8=7)r4c1 - (7)r4c7 = (7)r6c79 - (7=5)r6c4 - (5)r4c5 = (5)r4c3; r4c3 <> 8
....(8=7)r4c1 - (7)r4c7 = (7)r6c79 - (7=5)r6c4 - (5)r4c5 = (5-9)r4c3 = (9)r5c3; r5c3 <> 8
this next one is basically an extended M-wing
4... (7=8)r2c1 - (8)r2c3 = (8)r8c3 - (8)r8c7 = (8-7)r9c9 = (7)r6c9; r4c7 and r6c2 <> 7
singles follow. |
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